# Data Science (1847)

**20 Questions (with Answers) to Detect Fake Data Scientists: ChatGPT Edition, Part 2**- Feb 1, 2023.

Can ChatGPT provide answers to data science questions to the same standard of humans? Check out this attempt to do so, and compare the answers to those from experts.**How to Effectively Use Pandas GroupBy**- Jan 30, 2023.

Split the Pandas DataFrame into groups based on one or more columns and then apply various aggregation functions to each one of them.**Top 8 Data Science Slack Communities to Join in 2023**- Jan 26, 2023.

Take your Data Science journey to the next level by joining these Slack communities in 2023.**5 Free Data Science Books You Must Read in 2023**- Jan 23, 2023.

Get your hands on these gems to learn Python, data analytics, machine learning, and deep learning.**From Data Collection to Model Deployment: 6 Stages of a Data Science Project**- Jan 23, 2023.

Here are 6 stages of a novel Data Science Project; From Data Collection to Model in Production, backed by research and examples.**Things Aren’t Always Normal: Some of the “Other” Distributions**- Jan 18, 2023.

Learn about Gamma, Beta, and Bernoulli distributions with Python.**20 Questions (with Answers) to Detect Fake Data Scientists: ChatGPT Edition, Part 1**- Jan 18, 2023.

Can ChatGPT provide answers to data science questions to the same standard of humans? Check out this attempt to do so, and compare the answers to those from experts.**Google Data Analytics Certification Review for 2023**- Jan 12, 2023.

What is the Google Data Analytics Certification? And, more importantly, is it still worth getting it in 2023?**RAPIDS cuDF for Accelerated Data Science on Google Colab**- Jan 11, 2023.

GPU-accelerated dataframe library that implements the familiar pandas API for processing and analyzing your data.**Creating Beautiful Histograms with Seaborn**- Jan 11, 2023.

Visualize the numerical distribution in a beautiful way.**Performing a T-Test in Python**- Jan 10, 2023.

An introduction to the t-test with python implementation.**Free Data Management with Data Science Learning with CS639**- Jan 6, 2023.

Learn Data Management with Data Science for FREE with CS639.**How to Merge Pandas DataFrames**- Jan 5, 2023.

Data merge is a common data processing activity. Learn how Pandas provide various ways to merge our data.**Top Data Python Packages to Know in 2023**- Jan 4, 2023.

These Python packages would improve your data workflow.**Python Matplotlib Cheat Sheets**- Jan 3, 2023.

Matplotlib is the most famous and commonly used plotting library in Python. It allows you to create clear and interactive visualizations that make your data easier to understand and your results more concrete.**More Data Science Cheatsheets**- Dec 30, 2022.

It's time again to look at some data science cheatsheets. Here you can find a short selection of such resources which can cater to different existing levels of knowledge and breadth of topics of interest.**Data-Driven Holiday Cheer: How Santa is Using Analytics to Make the Season Bright**- Dec 25, 2022.

Want to know how Santa might use data science to make his job easier? So did we, so we asked ChatGPT. Read on to find out what it said.**Learn Data Science From These GitHub Repositories**- Dec 22, 2022.

Kickstart your data science career with these curated GitHub repositories.**5 Python Projects for Data Science Portfolio**- Dec 15, 2022.

Get more experience by working on web scraping, data analytics, time-series forecasting, machine learning, and deep learning projects.**How to Use Analytics to Accelerate Business Growth?**- Dec 9, 2022.

Many organizations are establishing a Data Analytics team to reap the benefits of their key strategic asset i.e. data. The post explains how you can leverage the power of analytics to understand the end user and generate actionable insights.**What are Moment-Generating Functions?**- Dec 7, 2022.

A brief overview of what moment-generating functions are and how they are used in probability and statistics.**A Brief Introduction to Kalman Filters**- Dec 5, 2022.

What you can’t observe, you ought to estimate. Human evolution is based on this keen interest in measurement. But what are the quantities or phenomena which you can’t observe or measure with certainty? Learn this and more about Kalman Filter which is the most widely used algorithm to estimate a true quantity.**Introduction to Data Visualization Using Matplotlib**- Dec 5, 2022.

Data Visualization is an important aspect of Data Science that enables the data to speak for itself by uncovering the hidden details. Follow this guide to get started with Matplotlib which is one of the most widely used plotting libraries in Python.**Top 10 Data Science Myths Busted**- Dec 2, 2022.

The data science field is full of job opportunities, yet there is still a lot of confusion about what data scientists actually do. This confusion is largely due to the many myths that exist about the role of a data scientist. In this article, we will bust the top 10 myths about data science. By the end of this article, you will have a better understanding of the role of a data scientist and what it takes to be one.**3 Approaches to Data Imputation**- Dec 2, 2022.

Learn about data imputation and 3 ways in which to implement it using Python.**How Can Python Be Used for Data Visualization?**- Dec 2, 2022.

This article discusses the different python libraries used for data visualization with examples.**Data Science Projects That Can Help You Solve Real World Problems**- Nov 30, 2022.

The best way to learn Data Science is by solving real-world problems with the data and building your own portfolio. In this article, we will discuss three projects that you can work on to build your portfolio and impress interviewers.**What is Chebychev’s Theorem and How Does it Apply to Data Science?**- Nov 24, 2022.

Chebyshev’s Theorem applies to every data set and is heavily used by Statisticians, Data Scientists, and Machine Learning Engineers.**Linux for Data Science Cheatsheet**- Nov 23, 2022.

KDnuggets is back with another exclusive cheatsheet, this time sharing a Linux quick reference for data science.**How Much Math Do You Need in Data Science?**- Nov 23, 2022.

There exist so many great computational tools available for Data Scientists to perform their work. However, mathematical skills are still essential in data science and machine learning because these tools will only be black-boxes for which you will not be able to ask core analytical questions without a theoretical foundation.**10 Amazing Machine Learning Visualizations You Should Know in 2023**- Nov 23, 2022.

Yellowbrick for creating machine learning plots with less code.**Telling a Great Data Story: A Visualization Decision Tree**- Nov 22, 2022.

Pick your visualizations strategically. They need to tell a story.**Will Poor-Quality Data Undermine your Business?**- Nov 22, 2022.

Leverage precise data to discover business opportunities, make strategic decisions, and increase ROI with a powerful data quality platform.**10 Most Common Data Quality Issues and How to Fix Them**- Nov 22, 2022.

Ensuring data quality guarantees more data-informed decisions. Hence, this article highlights the common data quality issues and ways to overcome them.**How to Use Graph Theory to Scout Soccer**- Nov 21, 2022.

Take Soccer Analytics to the Next Level with Graph Theory: Here’s What to Know and How to Do It.**Introduction to Pandas for Data Science**- Nov 18, 2022.

The Pandas library is core to any Data Science work in Python. This introduction will walk you through the basics of data manipulating, and features many of Pandas important features.**Top Data Analyst Certification Courses for 2022**- Nov 15, 2022.

Top certification courses by IBM, Edureka, DataCamp, Udacity, and Google.**A Quick Overview of Voronoi Diagrams**- Nov 14, 2022.

If you've heard of Voronoi diagrams but don't klnow what they are, have a look at this quick and informative overview.**Matrix Multiplication for Data Science (or Machine Learning)**- Nov 11, 2022.

Learn the math behind matrix multiplication for data science and machine learning with code examples.**Understanding Bias-Variance Trade-Off in 3 Minutes**- Nov 10, 2022.

This article is the write-up of a Machine Learning Lighting Talk, intuitively explaining an important data science concept in 3 minutes.**Fake It Till You Make It: Generating Realistic Synthetic Customer Datasets**- Nov 9, 2022.

Finding the data you need is hard. So why not fake it?**4 Ways to Rename Pandas Columns**- Nov 7, 2022.

A simple pandas tutorial for beginners with code examples.**How to Create a Sampling Plan for Your Data Project**- Nov 4, 2022.

When simple random sampling is not that simple.**What is Statistical Skew?**- Nov 3, 2022.

Read this overview of what is skewness, and how to calculate it.**30 Resources for Mastering Data Visualization**- Nov 2, 2022.

Want to master data visualization? This list of 30 resources and tools will help you get started on your path toward mastering data visualization.**5 Free Courses to Master Calculus**- Oct 18, 2022.

Calculus is one of the foundational pillars of understanding the mathematics behind machine learning algorithms. The post shares five free courses to help you master calculus and learn its real-world applications.**How to Build a Data Science Enablement Team: A Complete Guide**- Oct 11, 2022.

A Data Science Enablement Team consists of people from various departments like marketing, sales, product development, etc. They are responsible for providing the necessary tools and resources to help the data scientists do their job more efficiently.**10 Cheat Sheets You Need To Ace Data Science Interview**- Oct 10, 2022.

The only cheat you need for a job interview and data professional life. It includes SQL, web scraping, statistics, data wrangling and visualization, business intelligence, machine learning, deep learning, NLP, and super cheat sheets.**Debunking the Myth of the Citizen Data Scientist**- Oct 7, 2022.

While there are some benefits to having citizen data scientists, they are no silver bullet – and they certainly aren’t a replacement for true data scientists.**Key Takeaways from BigData London Conference and Exhibition**- Oct 4, 2022.

Read some of the key takeaways from BigData LDN, one of the UK's free data & analytics conferences, which took place recently.**Are the Efforts of People Analytics Worth the Outcome?**- Sep 30, 2022.

Learn about the connection between people analytics and creating diversity, equity, and inclusion (DEI) accountability.**Lessons from a Senior Data Scientist**- Sep 26, 2022.

The aim of this article was for me to gain a deeper insight into the life of a senior data scientist and how their experience can be used as lessons for up-and-coming data scientists.**Data Analyst Skills You Need for Your Next Promotion**- Sep 23, 2022.

Get some advice from the “older” generation.**Dimensionality Reduction Techniques in Data Science**- Sep 22, 2022.

Dimensionality reduction techniques are basically a part of the data pre-processing step, performed before training the model.**The Mistake Every Data Scientist Has Made at Least Once**- Sep 21, 2022.

How to increase your chances of avoiding the mistake.**Free Microsoft Excel for Beginners Course**- Sep 21, 2022.

Are you ready to learn Excel from the beginning? In this course, you will learn data entry, essential formulas, data visualization, pivot tables, and much more.**Data-centric AI and Tabular Data**- Sep 20, 2022.

DALL-E, LaMDA, and GPT-3 all had celebrity moments recently. So, where’s the glamorous, high-performance model that’s mastered tabular data?**Top 5 Bookmarks Every Data Analyst Should Have**- Sep 16, 2022.

Check out these online tools to save you time & effort.**How Data Science Fuels Fraud Prevention**- Sep 15, 2022.

By themselves, these data points will probably not provide much insight into a single customer. However, a company that has some or all of this information is well-positioned to have a strong idea of how legitimate its visitors are.**Why Organizations Need Data Warehouses**- Sep 14, 2022.

So where can you store, harness and collect findings in your data - in one place? What is the right tool for this? Data Warehouses**KDnuggets Applied Data Science Survey**- Sep 13, 2022.

We want to know where you applied data science in the past 12 months.**5 Data Science Skills That Pay & 5 That Don’t**- Sep 13, 2022.

This article will go over the top 5 data science skills that pay you and 5 that don’t.**7 Data Analytics Interview Questions & Answers**- Sep 12, 2022.

Most asked non-technical, operational, and SQL interview questions for data analytics jobs.**Everything You Need to Know About Data Lakehouses**- Sep 8, 2022.

Learn everything you need to know about data lakehouses.**24 A/B Testing Interview Questions in Data Science Interviews and How to Crack Them**- Sep 6, 2022.

Here’s everything you need to know about A/B testing interview questions in data science interviews.**Free Python for Data Science Course**- Sep 5, 2022.

Ready to learn how to use Python for data science? This free course has got you covered!**Data Governance and Observability, Explained**- Aug 30, 2022.

Let’s dive in and understand the ins and outs of data observability and data governance - the two keys to a more robust data foundation.**The Complete Data Science Study Roadmap**- Aug 29, 2022.

This article will map out the things you need to do to become a data scientist.**Build a Reproducible and Maintainable Data Science Project: A Free Online Book**- Aug 29, 2022.

This free online book is a fantastic resource on how to structure, manage, and maintain your real-world data science projects.**How to Better Leverage Data Science for Business Growth**- Aug 25, 2022.

Is data science for you? And if it is, how can you use it to grow your business?**Customize Your Data Frame Column Names in Python**- Aug 23, 2022.

This tutorial will explore four scenarios in which you can apply different transformations to all DataFrame columns.**Simplify Data Processing with Pandas Pipeline**- Aug 22, 2022.

Write a single line of code to clean and process the data for analytics and machine learning tasks.**How to Use Data Visualization to Add Impact to Your Work Reports and Presentations**- Aug 19, 2022.

For anyone whose work involves presenting data, understanding the art and science of data visualization — and its emphasis on storytelling — can make or break your ability to communicate key insights.**Type I and Type II Errors: What’s the Difference?**- Aug 19, 2022.

Looking to sort out the difference between Type I and Type II errors? Read on for more.**The Data Quality Hierarchy of Needs**- Aug 18, 2022.

Just as Maslow identified a hierarchy of needs for people, data teams have a hierarchy of needs, beginning with data freshness; including volumes, schemas, and values; and culminating with lineage.**Why is Data Management so Important to Data Science?**- Aug 16, 2022.

High data availability may help power digital transformation, but data management systems are needed to keep that data organized and make it accessible. Read this article to see why data management is important to data science.**The Complete Collection of Data Science Projects – Part 2**- Aug 15, 2022.

The second part covers the list of Machine Learning, Deep Learning, Computer Vision, Natural Language Processing, Data Engineering, and MLOps.**The Importance of Experiment Design in Data Science**- Aug 12, 2022.

Do you feel overwhelmed by the sheer number of ideas that you could try while building a machine learning pipeline? You can not take the liberty of trying all possible ways to arrive at a solution - hence we discuss the importance of experiment design in data science projects.**5 Key Data Science Trends & Analytics Trends**- Aug 11, 2022.

Let’s have a look at some of the key tech trends on the horizon right now.**3 Free Statistics Courses for Data Science**- Aug 9, 2022.

Statistics is one of the most in-demand data science skills. Master it for free with these online courses.**Best Instagram Accounts to Follow for Data Science, Machine Learning & AI**- Aug 8, 2022.

I have put this blog together to help you figure out what Instagram accounts you should follow to get the best Data Science, Machine Learning, and Artificial Intelligence content.**The Complete Collection of Data Science Projects – Part 1**- Aug 8, 2022.

The first part covers the list of Programming, Web scraping, Data Analytics, SQL, Business Intelligence, and Time Series projects.**Where Does Data Come From?**- Aug 5, 2022.

In this article, we will go over the top five ways to collect or receive data, whether to help optimize an AI-driven machine or simply forecast future consumer demand.**Full Stack Everything? Organizational Intersections Between Data Science, Dev & Tech**- Aug 3, 2022.

Breakthrough value is found when teams collaborate at their intersections to come up with innovative solutions.**ETL vs ELT: Data Integration Showdown**- Aug 1, 2022.

Extract-Transform-Load vs Extract-Load-Transform: Data integration methods used to transfer data from one source to a data warehouse. Their aims are similar, but see how they differ.**10 Most Used Tableau Functions**- Aug 1, 2022.

Learn about the most used string, number, date, logical, and aggregation Tableau functions.**Online Training and Workshops with Nvidia**- Jul 29, 2022.

Learn about the Nvidia Self-Paced Online Training from their Deep Learning Institute.**Benefits Of Becoming A Data-First Enterprise**- Jul 22, 2022.

Data is everywhere but only data is not sufficient to reap the benefits that come with it. It needs to be organized to enable the organizations to make more informed business decisions. In this article, we will learn what are the various benefits of being a data-first enterprise and using the data in developing a business intelligence solution.**Calculus for Data Science**- Jul 20, 2022.

In this article, we discuss the importance of calculus in data science and machine learning.**5 Project Ideas to Stay Up-To-Date as a Data Scientist**- Jul 19, 2022.

The skills you have need maintenance and occasional updates. Doing an interesting data science project is what will keep you from getting rusty.**The 5 Best Places To Host Your Data Science Portfolio**- Jul 15, 2022.

How can you showcase your data scientist skills and abilities? The answer to this question is online platforms where you can publish your portfolio and seize opportunities.**Data Preparation and Raw Data in Machine Learning**- Jul 12, 2022.

In this article, I will describe the data preparation techniques for machine learning.**Linear Algebra for Data Science**- Jul 12, 2022.

In this article, we discuss the importance of linear algebra in data science and machine learning.**Data Preparation in R Cheatsheet**- Jul 5, 2022.

Leverage the powerful data wrangling tools in R’s dplyr to clean and prepare your data.**Developing an Open Standard for Analytics Tracking**- Jul 5, 2022.

Striving for a new generic way to structure analytics data, so models built on one data set can be deployed and run on another.**Linear Regression for Data Science**- Jul 5, 2022.

In this article, we discuss the importance of linear regression in data science and machine learning.**Top 5 Data Management Platforms**- Jun 29, 2022.

This article presents the top 5 data management platforms, in order to help you choose which might be best for you.**Statistics and Probability for Data Science**- Jun 29, 2022.

In this article, we discuss the importance of statistics and probability in data science and machine learning.**Essential Math for Data Science: Eigenvectors and Application to PCA**- Jun 28, 2022.

In this article, you’ll learn about the eigendecomposition of a matrix.**The Complete Collection of Data Science Interviews – Part 2**- Jun 27, 2022.

The second part covers the list of Data Management, Data Engineering, Machine Learning, Deep Learning, Natural Language Processing, MLOps, Cloud Computing, and AI Manager interview questions.**Comprehensive Guide to the Normal Distribution**- Jun 23, 2022.

Drop in for some tips on how this fundamental statistics concept can improve your data science.**Essential Math for Data Science: Visual Introduction to Singular Value Decomposition**- Jun 21, 2022.

This article will cover singular value decomposition (SVD), which is a major topic of linear algebra, data science, and machine learning.**Plotting and Data Visualization for Data Science**- Jun 21, 2022.

In this article, we examine various types of plots used in data science and machine learning.**Super Study Guide: A Free Algorithms and Data Structures eBook**- Jun 20, 2022.

Check out Super Study Guide: Algorithms and Data Structures, a free ebook covering foundations, data structures, graphs, and trees, sorting and searching.**The Complete Collection of Data Science Interviews – Part 1**- Jun 20, 2022.

The first part covers the list of Behavioral, Situational, Statistics, Python, R, SQL, Data Analytics, and Business Intelligence interview questions.**Prepare Your Data for Effective Tableau & Power BI Dashboards**- Jun 16, 2022.

Although dashboards have become quite an integral part of performance tracking in organizations, implementing them can be tricky even for the most experienced analysts. This guide walks you through the steps that will allow you to create easily updatable, automated and scalable Power BI / Tableau dashboards.**Top 15 Books to Master Data Strategy**- Jun 16, 2022.

In this article, we outline 15 books on topics ranging from the technical to the non-technical, to help you improve your understanding of end-to-end best practices related to data.**Generate Synthetic Time-series Data with Open-source Tools**- Jun 15, 2022.

An introduction to the generative adversarial network model DoppelGANger, and how you can use a new open-source PyTorch implementation of it to create high-quality synthetic time-series data.**Top Data Science Podcasts for 2022**- Jun 15, 2022.

Here are some data science related podcasts to help you either grow your interest in the field, increase your current knowledge, or help you develop yourself.**Understanding Functions for Data Science**- Jun 9, 2022.

Most data science problems boil down to finding the mathematical function that describes the relationship between feature and target variables.**Top 18 Data Science Facebook Groups**- Jun 8, 2022.

Join the best data science groups on Facebook to share insights and experiences, ask for guidance, and build valuable connections.**3 Ways Understanding Bayes Theorem Will Improve Your Data Science**- Jun 7, 2022.

Mastery of this intuitive statistical concept will advance your credibility as a decision-maker.**Data Science is Overrated, Here’s Why**- Jun 7, 2022.

Think twice before jumping on the data science bandwagon.**Five Signs of an Effective Data Science Manager**- Jun 3, 2022.

In this article, we will go beyond the theoretical realm of what a data science manager does and focus more on how to become an “effective” data science manager.**Top 18 Data Science Groups on LinkedIn**- Jun 1, 2022.

Join the best data science professional groups on LinkedIn to share insights and experiences, ask for guidance, and build valuable connections.**Database Key Terms, Explained**- May 30, 2022.

Interested in a survey of important database concepts and terminology? This post concisely defines 16 essential database key terms.**Predicting Cryptocurrency Prices Using Regression Models**- May 27, 2022.

In this article, we explore how to get started with the prediction of cryptocurrency prices using multiple linear regression. The factors investigated include predictions on various time intervals as well as the use of various features in the models such as opening price, high price, low price and volume.**Data Science Projects That Will Land You The Job in 2022**- May 26, 2022.

Project ideas and portfolio tips from a self-taught data scientist.**The Complete Collection of Data Science Books – Part 2**- May 26, 2022.

Read the best books on Machine Learning, Deep Learning, Computer Vision, Natural Language Processing, MLOps, Robotics, IoT, AI Products Management, and Data Science for Executives.**Descriptive Statistics Key Terms, Explained**- May 25, 2022.

This is a collection of 15 basic descriptive statistics key terms, explained in easy to understand language, along with an example and some Python code for computing simple descriptive statistics.**Data Science, Statistics and Machine Learning Dictionary**- May 25, 2022.

Check out this curated list of the most used data science terminology and get a leg up on your learning.**The Complete Collection of Data Science Books – Part 1**- May 19, 2022.

Read the best books on Programming, Statistics, Data Engineering, Web Scraping, Data Analytics, Business Intelligence, Data Applications, Data Management, Big Data, and Cloud Architecture.**Should The Data Warehouse Be Immutable?**- May 17, 2022.

Is the data warehouse broken? Is the "immutable data warehouse" the right path for your data team? Learn more here.**Create Efficient Combined Data Sources with Tableau**- May 11, 2022.

Save time and effort with this guide, which will show you how to do data join operations in Tableau.**Data Mesh Architecture: Reimagining Data Management**- May 11, 2022.

The objective of data mesh is to establish coherence between data coming from different domains across an enterprise. The domains are handled autonomously to eliminate the challenges of data availability and accessibility for cross-functional teams.**4 Steps for Managing a Data Science Project**- May 10, 2022.

Good planning and preparation will not only improve productivity, but it will help avoid potential pitfalls and roadblocks that could be encountered during project execution.**Free University Data Science Resources**- May 10, 2022.

This is a list of FREE data science resources and notes that are available online, some of which are provided by universities.**Learning Data Science If You’re Broke**- May 9, 2022.

Check out this list of free resources, courses, and more to help you become a Data Scientist for free.**An Overview of Mercury: Creating Data Science Portfolio and Notebook Based WebApps**- May 9, 2022.

Turn your dull Jupyter notebooks into interactive web apps by adding a YAML header and sharing it with your friends and colleagues. You can also use Mercury to create your data science portfolio, which consists of a resume and projects.**How to Build Strong Data Science Portfolio as a Beginner**- May 5, 2022.

After learning the basics of data science, you can start to work on real-world problems. But how do you showcase your work? In this article, we are going to learn a unique way to create a data science portfolio.