365 Data Science: March 2020

Tuesday, March 31, 2020

Answer for using the “$” to lock a fomular

https://365datascience.com/dwqa-answer/answer-for-using-the-to-lock-a-fomular/ -

Hi Abieyuwa,

when we have C$5:C$61 we are fixing the rows. That means when we copy the formula we’re insuring we’ll remain between the rows 5 and 61, which is where our values are.

On the other hand, when we have $B61 we’re fixing the column. That means when we copy this formula we’re sure we’ll remain in the same column. Here we copy the values for code, which are all in column B.

To recap:

If we fix before the letter, i.e. $A1, $B1, $C1 and so on, we’re fixing the column.

2. If we fix before the numbers A$1, A$2… we’re fixing the row.

3. If we fix both $A$1, we’re fixing both row and column. This ensures the value won’t change or shift position, when we copy it.

Best,

Eli

#365datascience #DataScience #data #science #365datascience #BigData #tutorial #infographic #career #salary #education #howto #scientist #engineer #course #engineer #MachineLearning #machine #learning #certificate #udemy

Answer for Naming the Clusters (segments)

https://365datascience.com/dwqa-answer/answer-for-naming-the-clusters-segments-3/ -

The only suggestion I would make is to try and keep the names of the segments more neutral.

If the first segment is called ‘Young Married Women’, then the second would have to be something like ‘Unmarried Men mid 30s’. The last one could be ‘Well off Married in their 50s’ group, or something in those lines.

Otherwise it might send the wrong message. That aside, excellent work on the names!

Eli

Answer for at lessonMaking Predictions with the Linear Regression

https://365datascience.com/dwqa-answer/answer-for-at-lessonmaking-predictions-with-the-linear-regression/ -

Hi Mustafa,

It is extremely important to know that when feeding the new data, it should be arranged in the exact same way as the train data.

Your algorithm expects the constant to be at the first place, then the first variable, then the second one, etc. When feeding new data, all coefficients (weights) are multiplied by the respective values. If they are arranged differently (wrongly), the result is different (wrong).

Best,

Iliya

Answer for Introduction to TensorFlow 2 – Model layout: learning rate, input size not specified

https://365datascience.com/dwqa-answer/answer-for-introduction-to-tensorflow-2-model-layout-learning-rate-input-size-not-specified/ -

Hi JeanMichel,

Thanks for reaching out and very good questions indeed!

TensorFlow 2.0 can now automatically detect that and there is no need to explicitly write it. However, sometimes (especially when dealing with CNNs) we need to preprocess the input layer in some way. Therefore, it is a good practice to specify it.

Regarding the learning rate, since we are using Adam, the initial learning rate is mostly irrelevant. The algorithm will find (adapt) the best learning rate for each weight individually!

Best,
Iliya

Answer for How to install Tensorflow 2 as well as 1.15 both in a single OS

https://365datascience.com/dwqa-answer/answer-for-how-to-install-tensorflow-2-as-well-as-1-15-both-in-a-single-os/ -

Hi Sumant,

First, Anaconda is a very good decision when you want to have two different versions of the same package installed.

Second, to achieve that, you will have to make 2 different virtual environments. One will host your TF 1, the other – TF 2.

You can see how to make these environments in this lecture here: https://365datascience.teachable.com/courses/614390/lectures/10998627

Best,

Iliya

Answer for Problems with the exercises of Credit Risk Modeling

https://365datascience.com/dwqa-answer/answer-for-problems-with-the-exercises-of-credit-risk-modeling/ -

Hi David,

Please refer to this question here: https://365datascience.com/question/error-loading-notebook-unreadable-notebook/

Best,
The 365 Team

Answer for Module wise certificate

https://365datascience.com/dwqa-answer/answer-for-module-wise-certificate/ -

Hi Sai,

At this point we don’t offer module-wise certificates.

Best,

Iliya

Answer for Advanced Statistical Methods in Python Incomplete

https://365datascience.com/dwqa-answer/answer-for-advanced-statistical-methods-in-python-incomplete-3/ -

Hi Ammaar,

It seems to me that you’ve watched 100% of the course and it is marked as 100%.

I don’t see an issue 😕

Iliya

Monday, March 30, 2020

Answer for Do we ever drop features during segmentation?

https://365datascience.com/dwqa-answer/answer-for-do-we-ever-drop-features-during-segmentation/ -

Hi Joseph,

Thanks for reaching out!

First, we standardize our features before segmenting.

Generally, if we have prior knowledge about our data or a specific feature, and know it is compromised, it could improve our results to remove it. So, you could try segmenting the data without the full set of features and compare the results. We’d certainly be happy to see what you come up with. 🙂

Lastly, because this is unsupervised learning, it’s difficult to define a notion of ‘best algorithm’. Unfortunately, that’s one of the main challenges of unsupervised learning. So, that’s always something to keep in mind.

Best,

Eli

Answer for Naming the Clusters (segments)

https://365datascience.com/dwqa-answer/answer-for-naming-the-clusters-segments/ -

Hi Joseph,

the main goal of naming the clusters it to have names that are meaningful to you(or your marketing team). So you’re welcome to name the segments any way you deem fit.

Best,

Eli

Answer for PCA

https://365datascience.com/dwqa-answer/answer-for-pca/ -

Hi Joseph,

one of the main uses of PCA is to reduce the dimensions of the data set. That’s especially worthwhile when there are a lot of features in the data, and fewer data points. This leads to a phenomenon, known as the ‘curse of dimensionality’, which can be avoided by employing techniques such as PCA. That’s why we perform PCA before clustering.

Best,

Eli

Answer for Why do we have privacy issues after using data masking technique on big data?

https://365datascience.com/dwqa-answer/answer-for-why-do-we-have-privacy-issues-after-using-data-masking-technique-on-big-data/ -

Hi Eeshwar!

Thanks for reaching out.

The main reason for data privacy issues remain that sometimes the masking technique may not have worked so well and the hackers may have managed to obtain the real data. I.e. they may have managed to re-identify it. So, it’s basically a matter of how good a given masking technique is, in a certain situation, and whether it has worked well in that particular case.

This can also be classified as a data protection issue.

Hope this helps.
Best,
Martin

Answer for Hi team, I am a beginner of sql I tried installing Mysql in my desktop after agreeing to terms and conditions, I choose custom option and after that I am unable see workbench option under Application tab, kindly assist me on this please

https://365datascience.com/dwqa-answer/answer-for-hi-team-i-am-a-beginner-of-sql-i-tried-installing-mysql-in-my-desktop-after-agreeing-to-terms-and-conditions-i-choose-custom-option-and-after-that-i-am-unable-see-workbench-option-under-a/ -

Hi Girish!

Thanks for reaching out.Could you please first check in your Control Panel whether you had not installed MySQL Workbench and Server on your computer already? Is it possible you had installed these two pieces of software already? It is strange not to have them on list otherwise.
Alternatively, please go back a step and instead of selecting Custom install, try with Devlopers’/Full installation. This will install all available products.

Hope this helps but please feel free to get back to us should you need further assistance. Thank you.
Best,
Martin

Answer for argument meaning

https://365datascience.com/dwqa-answer/answer-for-argument-meaning/ -

Hi Tushar!

Thanks for reaching out!

When we define a function, by typing five(x), x is a parameter. I.e. x indicates that in its place, there will be a value, with which a certain operation will be applied.

In our (very simple) function, the operation to be applied is x = 5.

Then, when you call/invoke the function, which means – when we use it in practice (i.e. after it has been defined), then we don’t use parameters anymore. We use arguments instead.

So, argument is just a different term that we use when a certain function has been applied.

Therefore, in our example, we define a function called five with a parameter x. The operation to be applied is x = 5, which means that whichever argument we use when calling the function, it will be made equal to 5.
return (x) is a command that indicates what value we want the function to return to us.

Please remember that all these explanations will be made clearer in the Functions section of the course.

Hope this helps.
Best,
Martin

Answer for Error Code 1452: Cannot add or update a child row (INSERT statement exercise)

https://365datascience.com/dwqa-answer/answer-for-error-code-1452-cannot-add-or-update-a-child-row-insert-statement-exercise/ -

Hi Thu!

Thanks for reaching out.

We’ve answered this question here: https://365datascience.com/question/error-code-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fails-employees-titles-constraint-titles_ibfk_1-foreign-key-emp_no-references-employees-emp_no-on-delete-2/

But here’s the answer for your convenience.

Please stick to our general request to execute all code you see in the lectures and the exercises, in the given order. Doing this will prevent you from encountering some errors, such as this one – Error Code: 1452.
REASON FOR THE ERROR:
This error appears if you have already created another table, employees, where you have missed inserting data about the individual with id 999903. The relationship you have established between employees and dept_emp requires that you first insert a record in employees, and then insert a (related) record in dept_emp.
ON DELETE CASCADE means that if you remove record 999903 from employees, record 999903 will automatically be removed from dept_emp as well.
In brief, make sure the relationship between employees and dept_emp is valid and 999903 exists in employees so that you don’t get the same error the next time you try inserting 999903 in dept_emp.
SOLUTION: As explained in the article preceding this video, double-check if you’ve first inserted information about employee number 999903 in the employees table. Only then you should proceed with inserting information in the titles and dept_emp tables.

Hope this helps.
Best,
Martin

Answer for I don't know where to find the ddl

https://365datascience.com/dwqa-answer/answer-for-i-dont-know-where-to-find-the-ddl/ -

Hi Mohamed!

Thanks for reaching out.

This is an unfortunate problem that although very rarely, we’ve observed that it may still occur for some versions of Workbench in combination with the relevant operating system. Oftentimes, completely removing MySQL and then installing an older, archived version, solves the issue.

However, should you get to this point, I’d suggest try finishing our course without using the DDL tab, and then try changing the version of MySQL that works for you, as the latter may consume a lot of time.

Before getting to that point, though, there’s a trick and an alternative that may help you solve the problem.

First, please try refreshing the Schemas section on the left-hand side of the screen by pressing this tiny button.

Then, if this doesn’t help, please click on the Inspector button, then go to the Tables tab and double-click on the name of the table of interest. The latter should change the tabs that appear just above, and you’ll hopefully see the DDL tab as an option.

Hope this helps.
Best,
Martin

Answer for workbench

https://365datascience.com/dwqa-answer/answer-for-workbench/ -

Hi Nirmit!

Thanks for reaching out.

Could you please first check in your Control Panel whether you had not installed MySQL Workbench and Server on your computer already? Is it possible you had installed these two pieces of software already? It is strange not to have them on list otherwise.

Alternatively, please go back a step and instead of selecting Custom install, try with Devlopers’/Full installation. This will install all available products.

Hope this helps but please feel free to get back to us should you need further assistance. Thank you.

Best,
Martin

Answer for Python Pandas

https://365datascience.com/dwqa-answer/answer-for-python-pandas/ -

Hi Satya!

Thanks for reaching out!

In Python, particularly in pandas, you do have a .groupby() method that does relate to the GROUP BY function used in MySQL. Here’s a link to the Documentation about this method: https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.groupby.html

Regarding using dummies – that’s something different and it rather refers to the econometric technique of converting some of your regressors/independent variables (which, in our case, refer to columns of the DataFrame we use) into dummies – i.e. variables that can take one of only two values – of 0 or 1, to indicate the absence or presence of a certain phenomenon.

So, in this scenario, we use the same term “grouping”, for the lack of a better term, perhaps. What we actually do is group, or stack, or combine, certain reasons for absence into specific groups. But it’s not related to filtering your data in anyway – we are still on the opposite site, so to speak; we are organising/preprocessing the data to bring it to a format that will be suitable for analysis.

Hope this helps but please feel free to get back to us should you need further assistance.

Best,
Martin

Answer for I'm not able to solve this problem (COALESCE() - Preamble)?

https://365datascience.com/dwqa-answer/answer-for-im-not-able-to-solve-this-problem-coalesce-preamble/ -

Hi Devendra!

Thanks for reaching out.

In this particular Lecture, presented in the form of slides, we set up the departments_dup table in a way that will be convenient for us to work on in our next lesson, where we will actually apply the COALESCE() function. That’s why this lesson relates to the material taught in the First Steps in SQL section.

Please execute all code provided in the slides, and then feel free to move on to the next lecture – IFNULL() and COALESCE().

Hope this helps but please get back to us specifying which part of the code is leading to an error precisely, as well as tell us what error message you obtain, if any.

Best,
Martin

Answer for Paste Special

https://365datascience.com/dwqa-answer/answer-for-paste-special/ -

Hi Kalyan!

Thanks for reaching out.

Can you please support your question with a screenshot – what exactly is that went wrong? To begin, do you think you may have not copied the relevant cells in the proper way?

Looking forward to your answer.
Best,
Martin

Answer for Where is download option to download dataset for the course?

https://365datascience.com/dwqa-answer/answer-for-where-is-download-option-to-download-dataset-for-the-course/ -

Hi Sujat!

Thanks for reaching out!

We use various datasets not just for the different courses, but also sometimes for the different lectures within a course. Therefore, can you please be specific by telling us which dataset/lecture, and which course you are referring to?

Thank you.

Looking forward to your answer.
Best,
Martin,
The 365 Team

Answer for How to change appareance in MySQL query editor in order to have a dark screen and different font colors for the keywords, strings, comments, etc?

https://365datascience.com/dwqa-answer/answer-for-how-to-change-appareance-in-mysql-query-editor-in-order-to-have-a-dark-screen-and-different-font-colors-for-the-keywords-strings-comments-etc-5/ -

Hi Enrique!

Yes, it is obviously not a functionality they’ve thought about while creating the problem, and they’ve even made it harder for us. So we need to dig into such file to obtain a satisfactory result.

Please try changing the back-colors. Hopefully, this well lead to a change in the background color as you prefer (and yest, it does take a while to set up all colors to match your preferences).

Hope this will really lead to a change in the colors of your interface but please get back to us if modifying (and saving!) the code_editor.xml file doesn’t work. Also, please make sure to restart Workbench after any modification of this *.xml file.

Best regards,
Martin

Answer for Downloading PDFs

https://365datascience.com/dwqa-answer/answer-for-downloading-pdfs-4/ -

Hi everyone!

Thanks for reaching out!

The Python course has only one *.pdf file. It contains the Course Notes and it can be downloaded from the Introduction to Python – Course Notes lecture from the first section of the course

If you are referring to other *.pdf files/links, please support your question with more specific information (and e.g. with a screenshot), so that we can look into this problem in more detail.

Regarding the Time Series Analysis course – I’ve referred your question to those colleagues of mine that can soon help with an answer.

Hope this helps.
Best,
Martin

Interview with Natasha Mullins, Marketing Consultant at 365 Data Science

https://365datascience.com/interview-natasha-mullins/ -

Natasha Mullins, Marketing Consultant at 365 Data Science

Natasha Mullins is a Marketing Executive with 15 years of experience in driving company growth through strategic planning and execution of marketing campaigns and programs. She has led large projects and teams at Fidelity Investments, Telerik, and Chaos Group to expand the sales and marketing funnel and post record growth. Currently, Natasha works with the 365 Data Science Team as a Marketing Consultant.

Natasha, glad to have you here as our meet-the-team interview guest. We’ve already seen how your marketing superpowers work in practice. But why did you decide to specialize in digital marketing in the first place?

Well, as long as I can remember, I’ve been interested in human psychology, individual and organizational behavior and business. It turns out that I also like to build things – namely products, brands and companies that I believe in. Digital Marketing is a space where all these things can come together. There is a creative and human psychology aspect in terms of how you communicate the benefits and differentiators of your company and product; in words and visually. And there is also a business building component… Figuring out how to get your product to market and share it with people at a viable cost and then to scale that into a business. What I like particularly about digital marketing is that it’s so measurable; you have the ability to make data-driven decisions and to test and validate your hypotheses.

Speaking of digital marketing, what is the difference between a digital marketing analyst and a marketing executive?

A Digital Marketing Analyst is typically more hands-on and would be directly involved in Marketing execution which could be anything from managing campaigns and setting up tools to running tests and conducting analyses. A Marketing Executive would typically be responsible for formulating and leading the marketing strategy and plan. To do so, he or she must have a high-level view of the business, industry and competitive landscape. A Marketing Executive would be responsible for results and should be skilled at extracting the best work out of the team.

Sounds quite exciting! Natasha, as a Marketing Executive, which aspects of your work do you enjoy the most?

I love every aspect of my job. But if I have to distill it down to 3 main reasons, they would be the following:

First, the people.

We have an amazing team at 365 Data Science. I’m continually impressed by the knowledge and achievements of the people I work with. In addition to being super smart, these are highly disciplined and dedicated people. Plus, they are also great fun and are interested in a wide range of topics. It’s easy to find yourself having an amazing conversation or to discover a mutually shared interest.

Second – the product.

Online education is such a relevant field now and I believe it is the future of education in many ways. I’ve always had an interest in global citizenship and ways in which people can elevate themselves. Especially outside the circumstances they grew up in. It is remarkable that for such an affordable sum, anyone can get trained with the Data Science Online Program and from there have an excellent chance at securing a well-paying job. This is a game-changer for so many people all over the world; something I’m proud to be a part of.

And, third – the business.

The online education business is expanding, and our market share is growing. Since I joined the company, the Marketing team has launched lots of new initiatives: including numerous new courses; new videos; and several new learning resources such as the Guide to Starting a Career in Data Science and Interview Questions Guide. We’ve improved our website and the customer journey so it’s easier for aspiring data scientists to learn more about the field, study data science and embark on a career. No matter where people are in their journey, we have so many resources including videos, tutorials, blog posts and a free preview of the course to support them. For me, it’s rewarding seeing how people embrace the program, achieve their goals and share their success stories.

Natasha, you have a lot of experience working for various companies. What is the difference between working for a large and more established company and working for a startup?

Do we still qualify as a start-up, with over 450,000 students? I’m kidding! I think we manage to retain the spirit of a start-up in that we are self-motivated, innovative and entrepreneurial even though our user base is quite large now! The company is a nice size. It’s big enough to have the resources to make an impact but still small enough to be quick and agile. The focus here is on getting the work done – communicating our data science training program, enhancing our offering and helping our students thrive. There is a purity and generosity in that undertaking that feels somewhat different than the atmosphere and motivations at bigger companies.

Apart from scoring marketing wins, you are also a mom of three with a super busy schedule. How do you manage to find work-life balance?

My three children are quite adaptive and accustomed to our busy schedules and full lives, including living and working in different locations. By now, I believe they know that my work is important to me. But, of course, that means lots of juggling and support to make it work. Importantly, we regularly take time to unplug and spend time alone together as a family. Parking our camper in a beautiful spot in nature and inventing silly games to play as a family is our favorite place to be.

Sounds like a really great place to be. Thank you for taking the time for this interview, Natasha. We appreciate all the great work you’ve done for 365 Data Science; and wish you lots of success in all your future projects!

#Career
#365datascience #DataScience #data #science #365datascience #BigData #tutorial #infographic #career #salary #education #howto #scientist #engineer #course #engineer #MachineLearning #machine #learning #certificate #udemy

Answer for Calculating multi-variate p values

https://365datascience.com/dwqa-answer/answer-for-calculating-multi-variate-p-values/ -

Hi Pranit,

What are the specifications of your computer?

Best,

The 365 Team

Answer for Credit Risk Modeling

https://365datascience.com/dwqa-answer/answer-for-credit-risk-modeling-2/ -

Hi,

Could you please try to remove RENT and keep the code as:

df_inputs_prepr[‘home_ownership:OTHER_NONE_ANY’] = sum([ df_inputs_prepr[‘home_ownership:OTHER’],

df_inputs_prepr[‘home_ownership:NONE’],

df_inputs_prepr[‘home_ownership:ANY’]])

Best,
The 365 Team

Answer for Practice Problem

https://365datascience.com/dwqa-answer/answer-for-practice-problem/ -

Hi Nikita,

As you progress further through the course you will find many more practical examples.

Best,
The 365 Team

Answer for I am getting an error in Linear Regression OLS() function.

https://365datascience.com/dwqa-answer/answer-for-i-am-getting-an-error-in-linear-regression-ols-function/ -

Hi there, Nikita,

This is an issue with the plotting is related to matplotlib.

Try plotting only the major values. You are looking for something like:

plt.tick_params(axis='y', which='major')

Let us know if it worked!

Best,

The 365 Team

Answer for Where is Glorot used?

https://365datascience.com/dwqa-answer/answer-for-where-is-glorot-used/ -

Hi there,

Whenever you initialize the weights of a model, if you have not provided any further information, the Glorot initializer would run.

Please wait until the practical examples of MNIST or Business case example to see how this is applied in practice.

Best,

Iliya

Answer for Advanced Statistical Methods in Python Incomplete

https://365datascience.com/dwqa-answer/answer-for-advanced-statistical-methods-in-python-incomplete/ -

Hi Ammaar,

Could you please share screenshots of the error you are experiencing?

Best,

The 365 Team

Answer for dropbox link not working

https://365datascience.com/dwqa-answer/answer-for-dropbox-link-not-working/ -

Hi there,

Could you please try that link again? We just checked just now and it seems to be working!

Best,
The 365 Team

Answer for How doing dot products

https://365datascience.com/dwqa-answer/answer-for-how-doing-dot-products/ -

Hi Lalita,

Is there a specific question that you need answered? Have you been through all videos?

Best,

The 365 Team

Answer for Certificate

https://365datascience.com/dwqa-answer/answer-for-certificate-8/ -

Hi Asrith,

Please contact our team at team@365datascience.com

Best,
The 365 Team

Answer for Error loading notebook - Unreadable Notebook

https://365datascience.com/dwqa-answer/answer-for-error-loading-notebook-unreadable-notebook/ -

Hi Jovan,

Please refer to this question here as it is a duplicate: https://365datascience.com/question/credit-rist-modeling-ipynb-files/

Best,

Iliya

Answer for How To Display all underlying data when the cursor is at a particular point

https://365datascience.com/dwqa-answer/answer-for-how-to-display-all-underlying-data-when-the-cursor-is-at-a-particular-point/ -

Hi George,

It will be much easier for us to help you if you provide the precise lecture you are referring to!

Best,
The 365 Team

Answer for Credit Rist Modeling. ipynb files

https://365datascience.com/dwqa-answer/answer-for-credit-rist-modeling-ipynb-files/ -

HI Maxim,

Please find all files at this alternative link here: https://www.dropbox.com/sh/7oslws1xhsm1zbf/AABkdWDKqpdcGmY1NbXAnkrBa?dl=0

Best,

The 365 Team

Answer for Question about Scaler.fit(x) and Scaler.transform()

https://365datascience.com/dwqa-answer/answer-for-question-about-scaler-fitx-and-scaler-transform/ -

Hi Kam,

to answer your question, when you have new data you’ll just need to use transform on it.

We fit the data, so we determine the mean and standard deviation for the variables.

We transform our data, that is we substract the mean and divide by the standard deviation. So we ‘standardize’ our data.

When new data comes in, we transform it (or ‘standardize’ it) with the standard scaler we’ve already got.

You can think of it similarly to fitting a new model. We have train data where we fit the model and determine the coefficients. Then, we transform our data. (There a few additional steps here, like testing, cross-validation, etc.)

Now, whenever we obtain new data, we won’t fit the model again, as we’ve already trained it. All we need is to use our already trained model and use it to transform the new data.

Hope this makes things a bit clearer! And this is a confusing topic, especially if you’re seeing it for the first time. So, don’t worry if takes a little time to settle in. 🙂

Best,

Eli

Data Science in Healthcare: 5 Ways Data Science Transforms the Industry

https://365datascience.com/data-science-healthcare/ -

data science in healthcare, how data science changes healthcare, data science revolutionizes healthcare

Data science in healthcare is no longer just a glimpse of the future.

Advancement in the Internet of Medical things and AI technologies are on the verge of bringing a true digital transformation in clinical research and services. Connected medical devices aim to change the way patient data is aggregated, stored and utilized. Moreover, AI establishes itself as the key to hospital workflow optimization, cost control, and disease prevention.

That said, right now is the best time to start a career in data science, as the healthcare industry’s demand for data scientists is rapidly increasing, along with the growing importance of big data in medical care.

But how does data science revolutionize healthcare?

Here are 5 use cases that have a significant impact on the industry.

data science in healthcare, how data science revolutionizes healthcare

Precision Medicine

Today, data science has the potential to completely transform the way diseases are diagnosed and treated. How? Through continued collection and analysis of patient data. The latter includes genetic data, as well as information about contracted diseases, healing treatments, and outcomes.

This systematic approach can help determine the best medicines and therapies.

And this will decrease the chances of harming the patients or using inadequate treatments.

Moreover, patient data regarding their lifestyle and environmental exposure can further identify what triggers certain diseases and conditions. In addition, there are now high-performance genome analytics platforms and tools that establish data science in healthcare as truly revolutionary.

An example of using data science to help physicians make informed patient-care decisions is Imec’s GAP.

The Genomics Application Platform “paves the way to genome sequencing in hospitals for diagnosing and treating genetic diseases and for improved diagnosis and treatment of newborns with complex disorders.” That is certainly a prerequisite for major improvements in disease prevention. Plus, it’s an indicator of the growing importance of data science in healthcare.

data science in healthcare, data science and precision medicine

Workflow and Clinic Performance Optimization

Remember the 90s TV show ER? In numerous episodes, tensions between physicians and staff would run dangerously high due to a lack of workflow orchestration.

Indeed, the conditions in healthcare facilities are dynamic and often unpredictable.

Moreover, there’s a great number of factors that challenge productivity. For instance, patients’ needs, coordination between various hospital departments, staff members, and allocation of resources.

Fortunately, data science can now assist healthcare providers in staying on top of all processes through cloud-based tools and applications.

Aplacare’s AI platform, for instance, uses AI cognitive techniques to create a “smart health record” for each patient. Plus, it employs intelligent workflow automation to enable Value-Based Care (VBC) and find the best solutions in real-time when progress is impeded. Thus, data science in healthcare boosts effective decision-making which increases the quality of care and reduces costs.

Prevention and Control of Healthcare-Associated Infection (HAI)

Data science also plays a critical role in handling one of the most serious public health problems on a global scale. Namely, healthcare-associated infection (HAI).

According to the European Centre for Disease Prevention and Control, each year, 100,000 patients contract healthcare-associated infections in the EU alone. These infections are the direct cause of thousands of deaths every year.

What about the U.S.?

The Centers for Disease Control and Prevention reported that about 721,800 infections occurred in 2011, and about 75,000 patients have died of HAI-related complications during their hospital stay.

And even though the World Health Organization has a strict protocol that hospitals should follow to minimize the risk of HAI, many of the guidelines are impossible to follow without the use of technology.

Fortunately, data science offers an invaluable solution to the problem through surveillance and real-time reporting.

But how does it work?

The intelligent infection control tool MONI, for example, is linked to the medical documentation systems of a healthcare institution. It automatically imports electronic clinical and laboratory raw data and processes it into surveillance information. Thus, MONI helps identify, monitor, and report healthcare-associated infections with minimal staff interference.

In terms of impact, data science research based on such reports can truly make a difference in HAI prevention, saving $25–32 billion in the USA alone.

prevention and control of HAI

Patient Empowerment and Shared Decision Making

Involvement in healthcare decisions not only empowers patients but also leads to better health outcomes.

According to studies, people who actively participate in healthcare decisions are more likely to engage in healthy behavior, such as following a balanced diet and getting regular exercise.

What is more, they are more likely to avoid smoking, adhere to treatment, and opt for clinical research studies that help improve healthcare services.

Naturally, in order to support patient-centered care, people need to have access and control over their own health care data.

And that’s where data science comes into play.

Consider the health data aggregation and centralization platform 1upHealth for instance. Its revolutionary technology automatically updates all health information about the user, including new medicine and lab results, and stores it in one place. The platform also connects and stores data from wearable devices like Fitbit and Google Fit. Finally, you can record symptoms and manage your conditions by sharing data with healthcare providers.

Effectively, data science in healthcare enables both patients and providers to work together to improve clinical service and well-being.

Remote Healthcare Monitoring

Welcome to remote healthcare!

Thanks to data science, soon you won’t have to wait in front of the doctor’s office for a routine check-up. Wearable sensors and patient tablets can now track your recovery progress and connect you to your care team if you need help.

Furthermore, there are tools that make it possible for healthcare professionals to remotely monitor changes in patient status in an effective way.

Such AI innovations are increasingly used for monitoring heart conditions and diabetes, as they can alert both patients and healthcare professionals if there are indications for potentially dangerous conditions.

remote patient monitoring

Data Science in Healthcare: In Conclusion

Data analytics and AI are already making the first steps toward significant improvements in the quality of healthcare services. Technology continues to develop and related costs gradually decrease. And data science is bound to become a solid component in healthcare development in the future.

However, technology itself is just part of the answer.

After all, healthcare is all about assisting professionals and empowering people to manage their well-being. So, to achieve meaningful innovations, data science experts should continue developing AI with a deep understanding of the personal and clinical context in which it will be applied.

Ready to take the next step towards a data science career?

Check out the complete Data Science Program today. Start with the fundamentals with our Statistics, Maths, and Excel courses. Build up a step-by-step experience with SQL, Python, R, Power BI, and Tableau. And upgrade your skillset with Machine Learning, Deep Learning, Credit Risk Modeling, Time Series Analysis, and Customer Analytics in Python. Still not sure you want to turn your interest in data science into a career? You can explore the curriculum or sign up 12 hours of beginner to advanced video content for free by clicking on the button below.

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Answer for Challenge with package installation

https://365datascience.com/dwqa-answer/answer-for-challenge-with-package-installation/ -

Hi Adwoa,

You could try opening R studio with administrative rights. Before you start R Studio, ‘right click’ on the icon and select ‘Run As Administrator’.

Alternatively, you could select ‘no’ if you’re prompted to use a personal library.

But do share, if there is still a problem.

All the best,

Eli

Answer for Where can I find explanation of the practical formula for price elasticity? I didn't find it in the notes and failed to do it by myself.

https://365datascience.com/dwqa-answer/answer-for-where-can-i-find-explanation-of-the-practical-formula-for-price-elasticity-i-didnt-find-it-in-the-notes-and-failed-to-do-it-by-myself/ -

Hi Макс,

you can find the derivation for the formula in the course notes. They are in the lecture “Segmentation, Targeting, Positioning”, under the quiz. Here is a link:
https://365datascience.teachable.com/courses/709679/lectures/12746072

Best,

Eli

Answer for Calculate Standard Deviation with filters in Power BI

https://365datascience.com/dwqa-answer/answer-for-calculate-standard-deviation-with-filters-in-power-bi/ -

Hi, Miguel,

Please take a look here: https://community.powerbi.com/t5/Desktop/Standard-Deviation/td-p/66609 🙂

Sunday, March 29, 2020

Answer for Why does my print get erased?

https://365datascience.com/dwqa-answer/answer-for-why-does-my-print-get-erased/ -

Hi Maria,

Thanks for reaching out!

In Python the \ is an escape character, which can be used with other characters which have special meaning in Python. For instance,

\’ or \” produce inverted single or double commas. Here is a link to the Python’s documentation, where all the variations are listed.
https://docs.python.org/2.0/ref/strings.html

The issue is because of the \five\ and n\fish. \f is a page-breaking character, which is used in printing. It forces the printer to eject the current page and start printing at the top of a new one. In Spyder this is what’s causing a new line in your console.

If you type \\five\ and n\ fish(add a space between n\ and fish) instead you should be able to see your print.

Best,

Eli

Answer for Why does the MySQL functioning look different on the MAC?

https://365datascience.com/dwqa-answer/answer-for-why-does-the-mysql-functioning-look-different-on-the-mac/ -

Hi Pratiksha!

Thanks for reaching out!

Can you please be more specific, perhaps supporting your question with a screenshot?

In general, because Windows and Mac are two different operating systems, it is normal for the interface to be different. However, in terms of functionality, particularly for the purposes of taking the course from our program, there shouldn’t be any difference in functionality once you’ve managed to properly set up Workbench and the Server.

Hope this helps but please get back to us should you need further assistance. Thank you.

Best,
Martin

Answer for Learning Python Programming - Everything You Should Know

https://365datascience.com/dwqa-answer/answer-for-learning-python-programming-everything-you-should-know-2/ -

Hi Prafful!

If you’ve set the two commands to be separate, like this:

Numbers = [1, 5, 64, 24.5]

and then you have

sum(Numbers)

in a separate code cell, please make sure to execute both of them in this order, from top to bottom.

Hope this helps.
Best,
Martin

Answer for How to change appareance in MySQL query editor in order to have a dark screen and different font colors for the keywords, strings, comments, etc?

https://365datascience.com/dwqa-answer/answer-for-how-to-change-appareance-in-mysql-query-editor-in-order-to-have-a-dark-screen-and-different-font-colors-for-the-keywords-strings-comments-etc-3/ -

Hi Enrique!

Thank you for providing this information.

It is indeed quite specific and I hope you will soon find a way to adjust the colors of Workbench as you like.

Here’s a little help on how to edit this code_editor.xml file.

You need to open it as an administrator. This doesn’t always mean that you can open it in Notepad and then save the changes you’ve made.

However, if you use a more advanced text editor, such as Notepad++, you can run it as administrator, and then the changes you make on this file will be saved.

That said, once you open this file as administrator, you can see it is different from the files you’ve seen online. What you should be able to do, though, is change the HEX colors, save them according to your preferences, and then once you restart Workbench, observe the changes of the colors.

Hope this helps.
Best,
Martin

Answer for SQL DELETE Statement

https://365datascience.com/dwqa-answer/answer-for-sql-delete-statement/ -

Hi Nabin!

Thanks for reaching out.

To solve this problem, you need to follow the steps as suggested by Workbench. Here they are in more detail.

Go to the main Menu and expand the Edit/Preferences…/SQL Editor option.

Scroll down and un-tick the Safe Updates mode.

3. Click “OK” to confirm.

4. Reconnect to the database by clicking the following icon from the centre of the screen.

5. Load the data from the employees.sql file once more. Execute the following command to set employees as a default database.

USE employees;

6. Retry executing your query.

Hope this helps.
Best,
Martin

Answer for Learning Python Programming - Everything You Should Know

https://365datascience.com/dwqa-answer/answer-for-learning-python-programming-everything-you-should-know/ -

Hi Prafful,

I copied your example and it runs fine on my computer. Could you maybe try restarting the kernel and then running it again?

Best,

Eli

Answer for Problem in python programming

https://365datascience.com/dwqa-answer/answer-for-problem-in-python-programming-2/ -

Hi Prafful,

in the example you’re referring to, we want to reverse a string:

So, we iterate over each ‘char’ (or character) in the string and we append it backwards using reverse string. That’s why we need the order char + reverse string.

If we had reverse_string + chart instead, we’d print back the exact same string we input, without reversing it.

Could you please make sure to include a link to the lecture your question is about? It would make it a lot easier to answer the questions, especially since you’re naming your variables differently.

Best,

Eli

Answer for problem in python programming

https://365datascience.com/dwqa-answer/answer-for-problem-in-python-programming/ -

Hi Prafful

thanks for reaching out!

This particular example is used to reverse a string using a slicer. The -1 is the step, so at each iteration we’re going back one element at a time. Here we haven’t specified the length of the interval to be reversed, so Python reverses the whole string.

Here is a link with more on the topic of slicing:
https://www.educative.io/edpresso/how-do-you-reverse-a-string-in-python

Best,

Eli

Answer for connecting to server SQL – Mac

https://365datascience.com/dwqa-answer/answer-for-connecting-to-server-sql-mac-2/ -

Hi Bola O!

Regarding uploading an image, please consider the following that while asking a new question, you can Add Media.

After you’ve selected the relevant file, you can insert it into the post by clicking the following button located in the bottom-right part of the screen.

Hope this helps.
Best,
Martin

Answer for r studio

https://365datascience.com/dwqa-answer/answer-for-r-studio/ -

Hi ABDELkKERIM,

Thanks for reaching out!

You seem to have misspelled the world title, you should try writing ‘title’ with only one ‘t’ in the middle.

Please remember to put a link to the lecture you’re referring to, as it makes it a lot easier for us to answer the question.

Best,

Eli

Answer for Need of Population Variance in finding CI with T score

https://365datascience.com/dwqa-answer/answer-for-need-of-population-variance-in-finding-ci-with-t-score/ -

Hi Uday,

Whenever you are dealing with a small sample, you cannot find the population parameters. Therefore, you will not be able to use the Z-statistic.

You are suggesting to apply the population formula, however, it must be applied on population data and not on the sample data that we’ve got.

Best,

Iliya

Answer for @365 data science , Something wrong with certificates privacy

https://365datascience.com/dwqa-answer/answer-for-365-data-science-something-wrong-with-certificates-privacy/ -

Hi Sai,

What you are opening is not your certificates on LinkedIn.

Instead, the given person has added an URL to the 365 Data Science dashboard.

I presume the URL is something like: https://365datascience.teachable.com/courses/#course/certificate

This not an unique URL. Instead it is related to your personal account.

In fact, if you try to enter this URL without being logged into our courses, you’ll be redirected to our Pricing page (as it only works if you are logged in).

In other words – people are not pirating your certificates – they are just linking to the platform (instead of a particular certificate). You see your certificates, they see their own certificates. People without an account with us see the Pricing page.

Best,

Iliya

Answer for is that this course am offering for free is different from the paid one?

https://365datascience.com/dwqa-answer/answer-for-is-that-this-course-am-offering-for-free-is-different-from-the-paid-one/ -

Hi Oberewu,

No, it is not. Until the 15 April, we are providing exactly the same materials and experience to free and paid users.

Best,

Iliya

Answer for Regarding Book

https://365datascience.com/dwqa-answer/answer-for-regarding-book/ -

Hi Ganesh,

Please refer to this question here:
https://365datascience.com/question/suggestions-for-books-for-respective-courses/

Best,

Iliya

Answer for About Certificate's in Linkedin

https://365datascience.com/dwqa-answer/answer-for-about-certificates-in-linkedin-2/ -

Hi Sai,
We are currently in touch with LinkedIn to add our certification to the native LinkedIn choice, but it seems there is some extra bureaucracy involved.
In the meantime, you can add it manually using the instructions here: https://www.linkedin.com/help/linkedin/answer/44644/adding-editing-or-removing-certifications-on-your-profile?lang=en
Best,
Iliya

Answer for About Certificates in Linkedin

https://365datascience.com/dwqa-answer/answer-for-about-certificates-in-linkedin/ -

Answer for Regarding certificate

https://365datascience.com/dwqa-answer/answer-for-regarding-certificate-2/ -

Hi Vikashini,

Yes. During this month all free users on our website will have full access and benefits that we offer.

One of them is the certificates – they will be equivalent to the paid ones.

Best,
The 365 Team

Answer for how to check certificates ?

https://365datascience.com/dwqa-answer/answer-for-how-to-check-certificates/ -

Hi Rami,

Could you please be more specific. What are you trying to check?

Best,

Iliya

Answer for Certificate

https://365datascience.com/dwqa-answer/answer-for-certificate-7/ -

Hi Humaiz,

Once you complete a course, you will automatically receive an email with the certificate of the said course.

Let us know if you have any problems with that.

Best,
Iliya

Answer for Image

https://365datascience.com/dwqa-answer/answer-for-image-2/ -

Hi Ritik,

The easiest way to do that will be using imgur: https://imgur.com/

Simply upload a photo there and send us the link!

Best,
The 365 Team

Answer for What about after 15 April?

https://365datascience.com/dwqa-answer/answer-for-what-about-after-15-april/ -

Hi Ahmed and Sai,

After 15th April, we will be back to our paid subscription model. In order to access our courses, you will have to pay.

However, all materials that you download from the platform right now will stay yours to consult in the future. Moreover, if you’ve received any certificates of completion – these will also be valid!

Best,

Iliya

Answer for Stastistics

https://365datascience.com/dwqa-answer/answer-for-stastistics/ -

Hi Jamuna,

Do you mean that you are trying to download the course notes? If so, please find;

Course notes for descriptive statistics here: https://www.dropbox.com/s/blbnfcg2d3fw50d/Course-notes-descriptive-statistics.pdf?dl=0

Course notes for inferential statistics here: https://www.dropbox.com/s/9hwxlm9mx557bp2/Course-notes-inferential-statistics.pdf?dl=0

Course notes for hypothesis testing here: https://www.dropbox.com/s/6xafw2likrss41d/Course-notes-hypothesis-testing.pdf?dl=0

Best,
Iliya

Answer for course tracking

https://365datascience.com/dwqa-answer/answer-for-course-tracking/ -

Hi Mike,

Once you have completed all lectures from a course, that course will be marked as completed.

Best,

Iliya

Answer for Downloading PDFs

https://365datascience.com/dwqa-answer/answer-for-downloading-pdfs/ -

Hi Davison,

Which PDFs are you having trouble with? If you could pin-point the course, that would be great for us to troubleshoot it the problem.

Best,
The 365 Team

Answer for Can I access videos even after course completion?

https://365datascience.com/dwqa-answer/answer-for-can-i-access-videos-even-after-course-completion/ -

Hi Pratiksha,

Unfortunately, after 15 April you will not be able to access the videos for free.

However, you can download all course resources and use them even after you lose your access to the program.

Best,
The 365 Team

Answer for import Tensorflow

https://365datascience.com/dwqa-answer/answer-for-import-tensorflow/ -

Hi there,

Unfortuantely, there is one last line that you did not manage do paste.

After ‘another exception occurred:’ , there is a an error which has been described. What error is it?

Best,
Iliya

Answer for Certification

https://365datascience.com/dwqa-answer/answer-for-certification/ -

Hi Joseph,

Yes, you will. Once you complete a course, you will automatically receive an email with the certificate of completion.

Best,
The 365 Team

Answer for Why do we actually need a in depth knowledge of data science?

https://365datascience.com/dwqa-answer/answer-for-why-do-we-actually-need-a-in-depth-knowledge-of-data-science/ -

Hi Badal,

Thanks for reaching out and great to have you on the course.

However, the question you are asking is one that we cannot answer for you.

Do you want to work in data science?

If the answer is yes, then you need in depth knowledge of data science to achieve that.

Best,

Iliya

Answer for Error regarding tensor flow

https://365datascience.com/dwqa-answer/answer-for-error-regarding-tensor-flow/ -

Hi Yogendra,

Here’s a YouTube video which goes over the problem!
https://www.youtube.com/watch?v=CH8uW3abI9A&feature=youtu.be

Best,

Iliya

Saturday, March 28, 2020

Answer for Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (`employees`.`titles`, CONSTRAINT `titles_ibfk_1` FOREIGN KEY (`emp_no`) REFERENCES `employees` (`emp_no`) ON DELETE CASCADE) 0.000 sec

https://365datascience.com/dwqa-answer/answer-for-error-code-1452-cannot-add-or-update-a-child-row-a-foreign-key-constraint-fails-employees-titles-constraint-titles_ibfk_1-foreign-key-emp_no-references-employees-emp_no-2/ -

Hi harsh!

Thanks for reaching out!

Please stick to our general request to execute all code you see in the lectures and the exercises, in the given order. Doing this will prevent you from encountering some errors, such as this one – Error Code: 1452.

REASON FOR THE ERROR:

This error appears if you have already created another table, employees, where you have missed inserting data about the individual with id 999903. The relationship you have established between employees and dept_emp requires that you first insert a record in employees, and then insert a (related) record in dept_emp.

ON DELETE CASCADE means that if you remove record 999903 from employees, record 999903 will automatically be removed from dept_emp as well.

In brief, make sure the relationship between employees and dept_emp is valid and 999903 exists in employees so that you don’t get the same error the next time you try inserting 999903 in dept_emp.

SOLUTION: As explained in the article preceding this video, double-check if you’ve first inserted information about employee number 999903 in the employees table. Only then you should proceed with inserting information in the titles and dept_emp tables.

Hope this helps.
Best,
Martin

Answer for Error Code: 1452. Cannot add or update a child row: a foreign key constraint fails (`employees`.`titles`, CONSTRAINT `titles_ibfk_1` FOREIGN KEY (`emp_no`) REFERENCES `employees` (`emp_no`) ON DELETE CASCADE) 0.000 sec

Answer for Image

https://365datascience.com/dwqa-answer/answer-for-image/ -

Hi Ritik!

Thanks for reaching out!

While asking a question, you can click on the Add Media button to upload a picture.

Hope this helps.
Best,
Martin

Answer for Capstone project in python

https://365datascience.com/dwqa-answer/answer-for-capstone-project-in-python/ -

Hi Ritik!

Thanks for reaching out!

Can you please provide the entire code you execute before obtaining an error?

Also, can you please share a screenshot of the entire error message you’ve obtained?

Only in this way can you try to provide a specific assistance. Thank you.

Looking forward to your answer.

Best,
Martin

Answer for Jupyter Notebook Directory.

https://365datascience.com/dwqa-answer/answer-for-jupyter-notebook-directory/ -

Hi Kamui!

Thanks for reaching out!

If you are a Windows user, you need to execute the following command in Anaconda Prompt:

jupyter notebook --notebook-dir=C:/Users/name/Folder1/...

If you are a Mac user you need to execute the following command in Terminal:

jupyter notebook --notebook-dir=/Users/name/Folder1/...

Please remember that running such a command successfully is expected to overwrite any previously existing path.

Hope this helps.

Best,
The 365 Team

Answer for Difference btw modulus and absolute function.

https://365datascience.com/dwqa-answer/answer-for-difference-btw-modulus-and-absolute-function/ -

Hi Prafful!

Thanks for reaching out!

It depends on the context. If we’re talking about real numbers, the two terms are pretty much synonymous.

If you want to specify which lecture your question is referring to, we may be able to provide a more specific answer.

Hope this helps.
Best,
The 365 Team

Answer for Can I download videos for offline learning?

https://365datascience.com/dwqa-answer/answer-for-can-i-download-videos-for-offline-learning/ -

Hi Zuhair!

Thanks for reaching out.

Currently, there is no way to download our courses. You can only watch them online!

However, you can download all materials – notebook files, course notes, PDFs, etc. for later use!

Hope this helps.
Best,
Martin

Friday, March 27, 2020

Answer for Error Python

https://365datascience.com/dwqa-answer/answer-for-error-python/ -

Hi Amina!

Thanks for reaching out!

I see two potential reasons for this to happen.

On one hand, it could be that, quite simply, the first time you may have made a tiny mistake in your code that is still sufficient to lead to an error message. As you know, every symbol can make a difference.

On the other hand, you may have experienced some sort of kernel error that may have lead to the inability of Jupyter to execute your code. In general, this rarely happens but something of the kind could be a reason.

Usually, to solve a task like yours, it is best to ask you to provide specific information. I.e. the next time such a problem occurs, please provide the code that leads to an error, as well as the entire error message you obtain.
Doing so will help us provide specific assistance.

Hope this helps.
Best,
Martin

Answer for connecting to server SQL – Mac

https://365datascience.com/dwqa-answer/answer-for-connecting-to-server-sql-mac/ -

Hi Bola O!

Thanks for reaching out.

Thank you also for providing all this information. However, can you please tell us what happens if you choose “Connect” as opposed to “Edit Connection…”, if you have both these options available?

Then, can you please double-check the password you are using to access the connection (hence, check for CapsLock being turned on/off, the language of your keyboard while typing the password.

Moreover, please support your questions with screenshot(s), if you this could be relevant.
We are sorry we cannot provide a quick one-step solution, but such type of issues are very case-specific and it might take a few steps and some time before you manage to resolve the problem.

Finally, if you are certain that the problem relates to the password you are trying to access the connection with, then you’d need to reset it (and that’s not a very intuitive task), or just remove MySQL from your Mac completely, and then install it “fresh” again.

Looking forward to your answer.
Best,
Martin,
The 365 Team

Answer for How to change appareance in MySQL query editor in order to have a dark screen and different font colors for the keywords, strings, comments, etc?

https://365datascience.com/dwqa-answer/answer-for-how-to-change-appareance-in-mysql-query-editor-in-order-to-have-a-dark-screen-and-different-font-colors-for-the-keywords-strings-comments-etc/ -

Hi Enrique!

Thanks for reaching out!

There’s no universal way of changing the background color of MySQL, unfortunately. Having a dark background depends on your operating system and your version of Workbench. Can you please share these with us to see if we can find a solution.
Please note that finding a solution will not always be possible.

Looking forward to your answer.
Best,
The 365 Team

Answer for exercise

https://365datascience.com/dwqa-answer/answer-for-exercise/ -

Hi MInal!

Thanks for reaching out.

If you are referring to the two Exercise Notebook files, then pay attention that one of them is for Python 2, while the other one is for Python 3.

If, instead, you are referring to the content of the exercise, note that one of the tasks is about printing a value, while the other one is for returning a value. Also, the mathematical operations associated with each task are different.

Hope this helps.
Best,
Martin

Answer for plotting the regression line itself

https://365datascience.com/dwqa-answer/answer-for-plotting-the-regression-line-itself/ -

Hi Oberewu,

thanks for reaching out!

In answer to your question here is the formula for yhat:

yhat = x1.b1 + b0

b0 and b1 are the coefficients we obtain from the model fit. b1 is the coefficient for size, whereas b0 is the intercept.

You can find the values in the results table, under coef.

Best,

Eli

What Is the IBM Data Science Consulting Process in 2020?

https://365datascience.com/ibm-data-science-consulting/ -

IBM data science consulting, IBM data science team, IBM data science elite team, IBM data science cosnulting process

What’s the IBM data science consulting process in practice?

In this article, we’ll focus on the step-by-step process IBM’s data science team applies when working on a consulting project. We believe this overview can be highly beneficial for both expert professionals and data science beginners.

We’ll explore a best-practice framework applied by one of the pioneer and leading companies in the field. This way, you’ll get an insider’s look at how a consulting project that involves data analysis and data science unfolds.

In addition, we’ll examine the results achieved in IBM data science consulting projects with major clients from different industries, such as Nedbank, JP Morgan, and Experian.

Why is that important?

Well, each of these initiatives serves as an invaluable lesson to the rest of the companies in their field. Let’s say Carrefour managed to leverage AI to improve its supply chain processes. Then, the rest of the global hypermarket chains would basically be obliged to follow… If they want to keep up.

IBM Data Science Consulting: Stages of a Data Science Consulting Project

ibm data science consulting project stages

Let’s get right in and outline the five stages of a data science consulting project.

Engage the firm’s CTO;

Meet with the company’s SMEs and brainstorm;

Data collection and modeling through coding sprints;

Visualization and communication of findings;

Follow-up projects.

Each of these steps of the process is vital. So let’s elaborate a bit further by describing them one by one in more detail.

Things start with a conversation with the firm’s Chief Technology Officer.

He needs to be sold on the project. Hopefully, this would result in him championing and endorsing the initiative across the organization. Such buy-in enables cooperation and improves the project’s chances of success. At this stage, the consulting team and the CTO will define the scope of work and the ‘lowest hanging fruits’. The latter will give an immediate boost in terms of bottom-line results. But what do we mean by ‘lowest hanging fruit’? It is the easiest-to-implement opportunity that the data science team knows is available for most companies in an industry. For example, occasions indicating that supermarket chains can greatly reduce food waste by using a predictive AI model to adjust the timing of deliveries.

So, an absolute best practice in consulting projects is to address such opportunities first. This gives instant credibility to the project team and wins support across the organization.

ibm data science cosnulting process, engage ibm cto

Once the project scope has been identified with the firm’s CTO, the data science consulting team brainstorms on how AI can be applied in the particular pre-selected use cases.

To envision this a bit better, the team needs to conduct a series of interviews and meetings with Subject Matter Experts. These are the people who work in the business day in and day out. They are also the ones who can contribute greatly to identifying actionable and meaningful solutions. Also, in most cases, SMEs have a good idea of what data is available; and if it can be used for the purposes of the project at hand.

ibm data science consulting, brainstorm with sme's

The next stage consists of coding sprints. This is the main chunk of the work. So, IBM’s team organizes it into three parts.

One for Collecting data and feature modeling

Data collection sounds like ‘getting the data from all places’. However, it can be much trickier. Depending on the scope of the project, the consulting company may need to first consolidate all data in one place. This is what we call ‘a data warehouse’. In some cases, the amount of data is not enough. This means new data sources must be set up. Feature modeling is also inside this step. The reason behind this is that features may be chosen from the available data. Sometimes, however, very important metrics are not being measured. The consulting firm can then suggest collecting data on that. Thus, it changes the data collection structure of the client.

ibm data science consulting, ibm data collection and coding, feature modeling

Another sprint for feature selection and running the model for the first time

Once data has been collected and features have been modeled, it is time for some data science.

Specialists modeled and kind of selected features during the first sprint. However, they never tested them a model. So, in the second coding sprint, the team

evaluates,

transforms,

or engineers new features.

Only this time for predictive modeling purposes. Once ready, the first models come to life, demonstrating the potential to the stakeholders in the client company.

ibm selection sprint and first model run

And a third sprint to fine-tune the model and adjust it as per client requirements

The moment a solid model has been thought through and executed, the fine-tuning begins. There are many ways to improve a model. A 1% increase in accuracy could imply millions of dollars in savings for the client company. Therefore, this step should not be overlooked. Even if it sounds like the least exciting one.

ibm data science consulting, project sprint, fine-tuning

The fourth stage is data visualization.

Data visualization plays a critical role in most data science projects. However, please bear in mind the following. The specialists who build a model are not always the ones best equipped to visualize its findings. When presenting in front of a non-technical business team, Tableau or Power BI graphs are preferable to a Jupyter notebook. So, the data science consulting team needs chart and dashboard creation skills… And the ability to communicate in an effective way. It is not uncommon to have a person whose job is to solely style such findings. In fact, this is the final touch to a successful presentation.

data visualization

And this is where we reach the fifth stage – follow-up projects.

As with any other type of consulting, data science consulting is no different. The secret sauce of being a successful consultant? To be able to sell the next project. And then to sell the next one after that. And so on.

The premise is the following. If the company sees a measurable bottom-line improvement, they’ll want to retain the consulting team. And they’ll be willing to purchase additional services. This is also why consulting firms prefer to start with low-hanging fruits. It allows them to show they can create value very fast. And hence they improve their chances of being hired again.

follow-up projects

So, we’ve figured out the typical cycle of a data science consulting project. Let’s take a look at some of the successful use cases of the elite IBM’s data science consulting team.

IBM Data Science Consulting: Successful Use Cases

Starting with… Nedbank.

Nedbank, a South African bank, implemented a model predicting ATMs’ need for repair. This led to important efficiencies in ATM reliability and maintenance timeliness.

In another project, IBM’s data science team helped JP Morgan implement a powerful predictive model. The said model prevented the bank’s traders from engaging with inadvisable trades.

Experian is one of the leading companies in the information business industry.

They analyze credit payments on a global scale for a number of institutions. IBM’s team helped Experian leverage unstructured data and combine it with structured data they traditionally used in their models. This way, they managed to build a more comprehensive view of Experian clients’ businesses.

You could argue that data science and AI consulting is a business in its infancy. And that IBM’s team has only mastered the most important ingredient. Namely, the combination of technical know-how in terms of data science modeling and business understanding.

Truth is, a successful data science project needs both.

This is precisely why we try to teach you how data science can be applied in a business context in every course of the 365 Data Science program. Want to explore the curriculum or sign up 12 hours of beginner to advanced video content for free? Click on the button below.

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List of the top data science articles & videos you want to first have a look:

Tuesday, March 31, 2020

Monday, March 30, 2020

Natasha Mullins, Marketing Consultant at 365 Data Science

Natasha, glad to have you here as our meet-the-team interview guest. We’ve already seen how your marketing superpowers work in practice. But why did you decide to specialize in digital marketing in the first place?

Speaking of digital marketing, what is the difference between a digital marketing analyst and a marketing executive?

Sounds quite exciting! Natasha, as a Marketing Executive, which aspects of your work do you enjoy the most?

First, the people.

Second – the product.

And, third – the business.

Natasha, you have a lot of experience working for various companies. What is the difference between working for a large and more established company and working for a startup?

Apart from scoring marketing wins, you are also a mom of three with a super busy schedule. How do you manage to find work-life balance?

Sounds like a really great place to be. Thank you for taking the time for this interview, Natasha. We appreciate all the great work you’ve done for 365 Data Science; and wish you lots of success in all your future projects!

But how does data science revolutionize healthcare?

Precision Medicine

This systematic approach can help determine the best medicines and therapies.

An example of using data science to help physicians make informed patient-care decisions is Imec’s GAP.

Workflow and Clinic Performance Optimization

Indeed, the conditions in healthcare facilities are dynamic and often unpredictable.

Fortunately, data science can now assist healthcare providers in staying on top of all processes through cloud-based tools and applications.

Prevention and Control of Healthcare-Associated Infection (HAI)

What about the U.S.?

But how does it work?

Patient Empowerment and Shared Decision Making

According to studies, people who actively participate in healthcare decisions are more likely to engage in healthy behavior, such as following a balanced diet and getting regular exercise.

And that’s where data science comes into play.

Remote Healthcare Monitoring

Data Science in Healthcare: In Conclusion

However, technology itself is just part of the answer.

Ready to take the next step towards a data science career?

Sunday, March 29, 2020

Saturday, March 28, 2020

Friday, March 27, 2020

IBM Data Science Consulting: Stages of a Data Science Consulting Project

Things start with a conversation with the firm’s Chief Technology Officer.

Once the project scope has been identified with the firm’s CTO, the data science consulting team brainstorms on how AI can be applied in the particular pre-selected use cases.

The next stage consists of coding sprints. This is the main chunk of the work. So, IBM’s team organizes it into three parts.

One for Collecting data and feature modeling

Another sprint for feature selection and running the model for the first time

And a third sprint to fine-tune the model and adjust it as per client requirements

The fourth stage is data visualization.

And this is where we reach the fifth stage – follow-up projects.

IBM Data Science Consulting: Successful Use Cases

Starting with… Nedbank.

Experian is one of the leading companies in the information business industry.

Truth is, a successful data science project needs both.