On 10/6/2020, DHS issued the Strengthening the H-1B Nonimmigrant Visa Classification Program Interim Final Rule, which raised the bar of the H1B wage levels ...

Apparel Exports to the US

1 minute read

Weekly Viz 2020-10-26

US Health Spending

1 minute read

Weekly Viz 2020-10-19

Data Assets and Data Culture

1 minute read

Weekly Viz 2020-10-12

The U.S. Counties With the Highest Economic Output

1 minute read

Weekly Viz 2020-10-05

Child Marriage

1 minute read

Weekly Viz 2020-09-28

Pick up a book and read!

1 minute read

Weekly Viz 2020-09-21

School workforce in England

1 minute read

Weekly Viz 2020-09-14

Breakfast Cereals: Healthy or Unhealthy?

1 minute read

Weekly Viz 2020-09-07

Indian Batsmen vs Left-Arm Pace

1 minute read

Weekly Viz 2020-08-31

Sexual and Reproductive Health and Rights

1 minute read

Weekly Viz 2020-08-24

Scotland - The state of the Digital Nation

1 minute read

Weekly Viz 2020-08-17

Benefits of Remote Work

1 minute read

Weekly Viz 2020-08-10

UK visits abroad: All visits Thousands – SA

1 minute read

Weekly Viz 2020-08-03

Women in Power

1 minute read

Weekly Viz 2020-07-27

The Global Divide on Homosexuality Persists

1 minute read

Weekly Viz 2020-07-20

Penguins at Palmer Station

1 minute read

Weekly Viz 2020-07-13

Comparing Common Mental Disorder by Sex

1 minute read

Weekly Viz 2020-07-06

Economic Empowerment

1 minute read

Weekly Viz 2020-06-29

Amazon’s tiny profits, explained

1 minute read

Weekly Viz 2020-06-22

Most Popular Sports Among US High School Boys and Girls

1 minute read

Weekly Viz 2020-06-15

Animal-free products consumption in Great Britain

1 minute read

Weekly Viz 2020-06-08

Safe Houses For Girls At Risk of FGM in Tanzania

1 minute read

Weekly Viz 2020-06-01

Visualising 40 Years of Music Industry Sales

1 minute read

Weekly Viz 2020-05-25

Auto Insurance Rate by State 2020

1 minute read

Weekly Viz 2020-05-18

World Happiness Report 2020

1 minute read

Weekly Viz 2020-05-11

Obstetric Fistula in Madagascar

1 minute read

Weekly Viz 2020-05-04

Pump prices over time

1 minute read

Weekly Viz 2020-04-27

Focus on what you eat, not whether your food is local

1 minute read

Weekly Viz 2020-04-20

Messi Vs Ronaldo Stats

1 minute read

Weekly Viz 2020-04-13

Unpaid work: Allocation of time and time-use

1 minute read

Weekly Viz 2020-04-06

Does pineapple belong on a pizza?

1 minute read

Weekly Viz 2020-03-30

Courses in Berkeley 1900-2011

1 minute read

Weekly Viz 2020-03-23

Happiness and Life Satisfaction

1 minute read

Weekly Viz 2020-03-16

Violence Against Women & Girls – perceptions in African, Asian and South American countries

1 minute read

Weekly Viz 2020-03-09

Costing Kids Sleep

1 minute read

Weekly Viz 2020-03-02

Housing outcomes for clients of Australian Specialist Homelessness Services

1 minute read

Weekly Viz 2020-02-24

All the World’s Wealth in One Visual

1 minute read

Weekly Viz 2020-02-17

Nearly a quarter of Americans have never experienced the U.S. in a time of peace

1 minute read

Weekly Viz 2020-02-10

Brexit James Bond

1 minute read

Weekly Viz 2020-02-03

Bridges to Prosperity

1 minute read

Weekly Viz 2020-01-27

Is it time to treat sugar like smoking?

1 minute read

Weekly Viz 2020-01-20

The USA lags behind other agricultural nations in banning harmful pesticides

1 minute read

Weekly Viz 2020-01-13

What is America’s most popular sport?

1 minute read

Weekly Viz 2020-01-06

The Most Popular Makeover Monday Topics

1 minute read

Weekly Viz 2019-12-30

Estimated Christmas spending by concept

1 minute read

Weekly Viz 2019-12-23

The Spurs Have Never Been This Bad At Defense – NBA Defensive Ratings

1 minute read

Weekly Viz 2019-12-16

Ranked: Biggest Fast Food Chains in America

1 minute read

Weekly Viz 2019-12-09

How much does union membership benefit America’s workers?

1 minute read

Weekly Viz 2019-12-02

2018 Central Park Squirrel Census Fur Map

1 minute read

Weekly Viz 2019-11-25

Smartphone Ownership Among Youth Is on the Rise

1 minute read

Weekly Viz 2019-11-18

Youth and Adult Literacy Rates

1 minute read

Weekly Viz 2019-11-11

Las Vegas Convention Attendance & Visitor Traffic: Jan 1970-Oct 2019

1 minute read

Weekly Viz 2019-11-04

World Cities Ranked by Average Annual Sunshine Hours

1 minute read

Weekly Viz 2019-10-28

The age at which most people are dying by suicide

1 minute read

Weekly Viz 2019-10-21

Ironman World Championship Medalists

1 minute read

Weekly Viz 2019-10-14

Donations accepted by political parties

1 minute read

Weekly Viz 2019-10-07

London Population Predictions

1 minute read

Weekly Viz 2019-09-30

Evictions in San Francisco

1 minute read

Weekly Viz 2019-09-23

Positive Impact Events – Committments from the Event Industry for the Sustainable Development Goals

1 minute read

Weekly Viz 2019-09-16

James Patterson Book Checkouts at Seattle Libraries

1 minute read

Weekly Viz 2019-09-09

Fall is favorite season for most Americans

1 minute read

Weekly Viz 2019-09-02

PCs to Become the Smallest Gaming Platform in 2018

1 minute read

Weekly Viz 2019-08-26

Americans touch their smartphones 2,617 times a day

1 minute read

Weekly Viz 2019-08-19

A bird’s-eye view of clinical trials

1 minute read

Weekly Viz 2019-08-12

The power switch: tracking Britain’s record coal-free run

1 minute read

Weekly Viz 2019-08-05

STD Infections Rates in America

1 minute read

Weekly Viz 2019-07-29

Arsenal FC’s 2018/19 season

1 minute read

Weekly Viz 2019-07-22

The share of Americans not having sex has reached a record high

1 minute read

Weekly Viz 2019-07-15

Asylum Applications in EU

1 minute read

Weekly Viz 2019-07-08

Game of Thrones Deaths

1 minute read

Weekly Viz 2019-07-01

Alcohol Consumption By Country

1 minute read

Weekly Viz 2019-06-24

Berlin Airbnb Ratings

1 minute read

Weekly Viz 2019-06-17

Is it wrong for same-sex couples to have sexual relations?

1 minute read

Weekly Viz 2019-06-10

Sleepless in America?

1 minute read

Weekly Viz 2019-06-03

CO2 emissions per capita

1 minute read

Weekly Viz 2019-05-27

North American Bear Attacks

1 minute read

Weekly Viz 2019-05-20

Rhino Poaching in South Africa

1 minute read

Weekly Viz 2019-05-13

Major League Baseball Most Efficient Batters

1 minute read

Weekly Viz 2019-05-06

ISS Spacewalks

1 minute read

Weekly Viz 2019-04-29

Steph Curry’s Stadium Popcorn Rankings

1 minute read

Weekly Viz 2019-04-22

The words in ‘Info We Trust’

1 minute read

Weekly Viz 2019-04-15

Ranking the States by Fiscal Condition

1 minute read

Weekly Viz 2019-04-08

Wastes on UK Beaches

1 minute read

Weekly Viz 2019-04-01

Consumer Spending by Generation

1 minute read

Weekly Viz 2019-03-25

How do we really feel about women leaders?

1 minute read

Weekly Viz 2019-03-18

Philadelphia Real Estate Transfers

1 minute read

Weekly Viz 2019-03-11

World Development Indicators – Health and Equality

1 minute read

Weekly Viz 2019-03-04

Economic value of the bicycle industry

1 minute read

Weekly Viz 2019-02-25

Which States Produce the Most Wind Energy

1 minute read

Weekly Viz 2019-02-18

Trump’s “Executive Time”

1 minute read

Weekly Viz 2019-02-11

How Chinese New Year Compares With Thanksgiving

2 minute read

Weekly Viz 2019-02-04

Digital Economy and Society Index (DESI)

1 minute read

Weekly Viz 2019-01-28

Energy Use at 10 Downing Street

1 minute read

Weekly Viz 2019-01-21

How many people earned the Federal minimum wage or less in each State?

1 minute read

Weekly Viz 2019-01-14

Press Freedom’s Dark Horizon

1 minute read

Weekly Viz 2019-01-07

NHL Attendance

2 minute read

Weekly Viz 2018-12-31

U.S. Per Capita Consumption of Poultry and Livestock

2 minute read

Weekly Viz 2018-12-27

Average spending on Christmas gifts in the U.S. 1999-2018

1 minute read

Weekly Viz 2018-12-24

London Bus Safety Performance

1 minute read

Weekly Viz 2018-12-17

Land Use by Food Type

1 minute read

Weekly Viz 2018-12-10

Women Constructors in the Shortz Era

1 minute read

Weekly Viz 2018-12-03

The Cost of A Night Out

1 minute read

Weekly Viz 2018-11-26

How Many Hours Americans Need to Work to Pay Their Mortgage

2 minute read

Weekly Viz 2018-11-19

Diversity in Tech

1 minute read

Weekly Viz 2018-11-12

US Population Projection by Age Group 2016-2060

1 minute read

Weekly Viz 2018-11-05

Washing Hands After Going to the Toilet

1 minute read

Weekly Viz 2018-10-29

Beer Cost at Every MLB Stadium

1 minute read

Weekly Viz 2018-10-22

Total Number of Women the House of Representatives: 1917-2018

1 minute read

Weekly Viz 2018-10-15

5-Year Cancer Survival Rates in US

1 minute read

Weekly Viz 2018-10-08

Avocado Prices

1 minute read

Weekly Viz 2018-10-01

Visualzing Equality

2 minute read

Weekly Viz 2018-09-24

Train Versus Plane in Europe

1 minute read

Weekly Viz 2018-09-17

Paying the President

1 minute read

Weekly Viz 2018-09-10

Nike Factory Locations

1 minute read

Weekly Viz 2018-09-03

Wearable Devices

1 minute read

Weekly Viz 2018-08-27

ACLED: Visualizing Conflict

1 minute read

Weekly Viz 2018-08-20

Anthony Bourdain’s Travels

2 minute read

Weekly Viz 2018-08-13

How Much Your Country Spends on Research & Development

1 minute read

Weekly Viz 2018-08-06

Big Mac Index

1 minute read

Weekly Viz 2018-07-30

OECD Parental Leave System

1 minute read

Weekly Viz 2018-07-23

Historical NBA Team Spending Against the Cap

1 minute read

Weekly Viz 2018-07-16

Volcano Eruptions

1 minute read

Weekly Viz 2018-07-09

Rat Sightings in NYC

1 minute read

Weekly Viz 2018-07-02

London Cycle Hire Usage

3 minute read

Weekly Viz 2018-06-25

U.S. Influenza Surveillance Report

2 minute read

Weekly Viz 2018-06-18

Tourism Density Index

1 minute read

Weekly Viz 2018-06-11

UK Gender Gap

1 minute read

Weekly Viz 2018-06-04

The World’s Most Expensive Prime Property

1 minute read

Weekly Viz 2018-05-28

Premier League Rank Prediction Vesus Reality

1 minute read

Weekly Viz 2018-05-21

Traffic Jam in Europe

1 minute read

Weekly Viz 2018-05-14

Toughest Sport by Skill

1 minute read

Weekly Viz 2018-05-07

Bee Colony Loss in the US

1 minute read

Weekly Viz 2018-04-30

Ecological Footprint per Capita

1 minute read

Weekly Viz 2018-04-23

Zambia Southern Province Confirmed Malaria Cases

1 minute read

Weekly Viz 2018-04-16

Arctic Sea Ice Extent

1 minute read

Weekly Viz 2018-04-09

World Wine Production

1 minute read

Weekly Viz 2018-04-02

Top 10 Popular Chocolate Bar Brands in the UK

1 minute read

Weekly Viz 2018-03-26

UK Pet Population

2 minute read

Weekly Viz 2018-03-19

Growth in Irish Whiskey Sales

1 minute read

Weekly Viz 2018-03-12

Survey on Gender Equality Measurements Awareness of Policymakers in Five Countries

2 minute read

Weekly Viz 2018-03-05

World Economic Freedom

1 minute read

Weekly Viz 2018-02-26

World Drugs and Medicine Trade

2 minute read

Weekly Viz 2018-02-19

The Winter Olympics

2 minute read

Weekly Viz 2018-02-12

US Baseball Players Ethnicity

2 minute read

Weekly Viz 2018-02-05

Most Profitable Companies

2 minute read

Weekly Viz 2018-01-29

Movement of Turkey Vultures in North and South America

1 minute read

Weekly Viz 2018-01-22

U.S. Household Income Distribution by State

2 minute read

Weekly Viz 2018-01-15

Across the globe, personality is rated as more important than looks

1 minute read

Weekly Viz 2018-01-08

reading notes

Reading Notes 2025 May - Jun

4 minute read

My Medium Articles! In the past two months, I continued writing articles per month on Medium and Towards Data Science. Here you go: The Secret Power of D...

Reading Notes 2025 Mar - Apr

3 minute read

My Medium Articles! In the past two months, I continued writing articles per month on Medium and Towards Data Science. Here you go: Google’s Data Science...

Reading Notes 2025 Jan - Feb

3 minute read

My Medium Articles! In the past two months, I continued writing articles per month on Medium and Towards Data Science. Here you go: Unlocking the Power o...

Reading Notes 2024 Nov - Dec

3 minute read

My Medium Articles! In the past two months, I kept the pace of writing 2 articles per month on Medium. Here you go: My Medium Journey as a Data Scientist...

Reading Notes 2024 Sep - Oct

3 minute read

My Medium Articles! It has been six months since I started writing on Medium and I am approaching 3k followers now! Below are the articles I posted lately. ...

Reading Notes 2024 Jul - Aug

4 minute read

My Medium Articles! In the past two months, I continued writing data science and AI contents on Medium. I am super excited to have more than 1k followers no...

Reading Notes 2024 May - Jun

5 minute read

My Medium Articles! Before I jump into the summary of the articles I read in the past two months, I am excited to announce that I have become a write on Med...

Reading Notes 2024 Mar - Apr

3 minute read

This is a summary of the data-science related blogs I read in the past two months. Hope you will enjoy the reading as well. Data Science Statistical Meas...

Reading Notes 2024 Jan - Feb

4 minute read

This is the fourth year since I started reading data science blogs (mostly on Medium) every Friday and Sunday night. This habit has brought me immense self-f...

Reading Notes 2023 Nov - Dec

3 minute read

This post summarises the Medium blogs I read in the past two months. I have been exploring various LLM applications including GPTs and semantic search with t...

Reading Notes 2023 Sept - Oct

3 minute read

This post summarises the Medium blogs I read in the past two months. Hope you will enjoy the reading as well. Causal Inference Causal Analysis with PyMC:...

Reading Notes 2023 Jul - Aug

3 minute read

This post summarises the Medium blogs I read in the past two months. Hope you will enjoy the reading as well. DS, Analytics From Analytics to Actual Appl...

Reading Notes 2023 May - Jun

3 minute read

This post summarises the Medium blogs I read in the past two months. Hope you will enjoy the reading as well. DS, Analytics Creative Fatigue: How adverti...

Reading Notes 2023 Mar - Apr

3 minute read

This post summarises the Medium blogs I read in the past two months. Hope you will enjoy the reading as well. Causal Inference How to correctly select yo...

Course Notes - ChatGPT Prompt Engineering

14 minute read

ChatGPT has been a very hot topic recently, and has shown great potential to improve productivity. Yesterday, I took the ChatGPT Prompt Engineering for Devel...

Reading Notes 2023 Jan - Feb

3 minute read

This is the first article of the reading notes series in 2023. It summarises the Medium blogs I read in the past two months. Hope you will enjoy the reading ...

Reading Notes 2022 Nov - Dec

4 minute read

This is the summary of the great blog posts I read in November and December. This is the last one of the year – I am glad I keep up with this habit of readin...

Reading Notes 2022 Sep - Oct

2 minute read

This is a summary of the great Medium posts I came across in the past two months. Hope you enjoy it :) Causal Inference Causal Forecasting at Lyft (Part ...

Reading Notes 2022 Jul - Aug

3 minute read

This is a summary of the great Medium posts Elise and I read in July and Augest. I have been working on some customer segmentation project at work, so you wi...

Reading Notes 2022 May - Jun

2 minute read

This is a summary of the great Medium posts Elise and I read in May and June. Please enjoy :) Causal Inference A Survey of Causal Inference Applications ...

Reading Notes 2022 Mar - Apr

3 minute read

This is a summary of the great Medium posts Elise and I read in March and April. Please enjoy :) Experimentation Assign Experiment Variants at Scale in A...

Reading Notes 2022 Jan - Feb

2 minute read

As in 2021, this series of blogs summarise the best data science-related posts Elise and I came across in the past two months during our Friday and Sunday ni...

Reading Notes 2021 Nov - Dec

3 minute read

This is my sixth and last blog of this series this year, summarising the great posts Elise and I came across during our Friday and Sunday night reading sessi...

Reading Notes 2021 Sept - Oct

2 minute read

This is my fifth blog of this series (and second to last for this year), summarising the great posts Elise and I came across during our Friday and Sunday nig...

Reading Notes 2021 Jul - Aug

4 minute read

This is my fourth blog of this series, summarising the great posts Elise and I came across during our Friday and Sunday night reading sessions. As you can se...

Reading Notes 2021 May - Jun

3 minute read

This is my third blog of this series, summarising the great posts Elise and I came across during our Friday and Sunday night reading sessions. In these two m...

Reading Notes 2021 Mar - Apr

2 minute read

As mentioned in the last post, this year I have been reading DS&Analytics related blogs with my friend Elise every Friday and Sunday night. This is my se...

Reading Notes 2021 Jan - Feb

2 minute read

This year, I put reading data science related Medium & blog posts on my resolution list – the plan is to read three posts on Friday night and three on Su...

Data Science & Analytics Reading List

3 minute read

This summer I got the opprotunity to mentor an intern in the Product Analytics team at Ancestry. I personally learned a lot from my mentor when I was an anal...

data science

Rethinking Data Science Interviews in the Age of AI

10 minute read

How AI is transforming data science interviews — and what hiring managers and candidates should do to adapt.

The Secret Power of Data Science in Customer Support

7 minute read

Customer Support is a data goldmine. Here’s how to unlock its full potential with data science.

How AI Is Rewriting the Day-to-Day of Data Scientists

11 minute read

From eliminating low-value tasks to accelerating high-impact projects, here’s how AI is reshaping the data science workflow.

Google’s Data Science Agent: Can It Really Do Your Job?

10 minute read

I tested Google’s Data Science Agent in Colab—here’s what it got right (and where it failed).

Mastering 1:1s as a Data Scientist: From Status Updates to Career Growth

7 minute read

Use your 1:1s to gain visibility, solve challenges, and advance your career.

DeepSeek V3: A New Contender in AI-Powered Data Science

10 minute read

How DeepSeek’s budget-friendly AI model stacks up against ChatGPT, Claude, and Gemini in SQL, EDA, and machine learning.

Unlocking the Power of Machine Learning in Analytics: Practical Use Cases and Skills

8 minute read

Your essential machine learning checklist to excel as a data scientist in analytics.

5 Essential Tips to Build Business Dashboards Stakeholders Love

8 minute read

A practical guide to designing clear, effective, and actionable dashboards for decision-making.

From Data Scientist to Data Manager: My First 3 Months Leading a Team

8 minute read

Reflections on moving from hands-on work to mentoring and leading.

My Medium Journey as a Data Scientist: 6 Months, 18 Articles, and 3,000 Followers

9 minute read

Real numbers, earnings, and data-driven growth strategy for Medium writers.

From Insights to Impact: Presentation Skills Every Data Scientist Needs

6 minute read

How to structure, design, and deliver data presentations that win over stakeholders.

Top 5 Principles for Building User-Friendly Data Tables

8 minute read

Designing intuitive and reliable tables that your data team will love.

Beyond Line and Bar Charts: 7 Less Common But Powerful Visualization Types

12 minute read

Step up your data storytelling game with these creative and insightful visualizations.

Seven Common Causes of Data Leakage in Machine Learning

7 minute read

Key Steps in Data Preprocessing, Feature Engineering, and Train-test Splitting to Prevent Data Leakage.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 3): Best AI Assistant for Machine Learning

10 minute read

How AI can accelerate your ML projects from feature engineering to model training.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 2): Who’s the Best at EDA?

12 minute read

Five criteria to compare ChatGPT, Claude, and Gemini in tackling Exploratory Data Analysis.

Build a RAG-Based Chatbot to Retrieve Visualizations in 3 Steps

7 minute read

A step-by-step guide to creating a visualization discovery chatbot with OpenAI API, FAISS, and Streamlit.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 1)

19 minute read

Ten Questions to test which AI assistant writes the best SQL.

Navigating Data Science: B2C vs. B2B Analytics

11 minute read

How Customer Types Shape Data Science Roles and Methodologies.

Evaluating ChatGPT’s Data Analysis Improvements: Interactive Tables and Charts

9 minute read

Is ChatGPT becoming a BI tool?

Building a Standout Data Science Portfolio: A Comprehensive Guide

10 minute read

Learn how to create an impactful data science portfolio that showcases your skills and attracts potential employers.

Mastering SQL Optimization: From Functional to Efficient Queries

11 minute read

Six Simple Yet Effective SQL Tips That Helped Me Reduce 50 Hours of Snowflake Query Time Every Day.

330 Weeks of Data Visualizations: My Journey and Key Takeaways

6 minute read

How consistent practice in data visualization enhanced my data science skills.

From Web Pages to Insights: Integrating Web Scraping and Text Analysis with GPT

10 minute read

Use GPT to summarise content and extract structured data from web pages.

Boost Your Data Analysis with the New ChatGPT Desktop App

3 minute read

How does ChatGPT Desktop App seamlessly integrate into your data analysis workflow and boost productivity.

Topic Summarization and Categorization with GPT

10 minute read

Use GPT-3.5 API for text analytics to categorize and summarize data science blog posts.

Evaluating ChatGPT in Data Science: Churn Prediction Analysis As An Example

8 minute read

Can ChatGPT assist or even replace a data scientist?.

analysis

The Secret Power of Data Science in Customer Support

7 minute read

Customer Support is a data goldmine. Here’s how to unlock its full potential with data science.

Unlocking the Power of Machine Learning in Analytics: Practical Use Cases and Skills

8 minute read

Your essential machine learning checklist to excel as a data scientist in analytics.

My Medium Journey as a Data Scientist: 6 Months, 18 Articles, and 3,000 Followers

9 minute read

Real numbers, earnings, and data-driven growth strategy for Medium writers.

From Insights to Impact: Presentation Skills Every Data Scientist Needs

6 minute read

How to structure, design, and deliver data presentations that win over stakeholders.

Top 5 Principles for Building User-Friendly Data Tables

8 minute read

Designing intuitive and reliable tables that your data team will love.

Beyond Line and Bar Charts: 7 Less Common But Powerful Visualization Types

12 minute read

Step up your data storytelling game with these creative and insightful visualizations.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 2): Who’s the Best at EDA?

12 minute read

Five criteria to compare ChatGPT, Claude, and Gemini in tackling Exploratory Data Analysis.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 1)

19 minute read

Ten Questions to test which AI assistant writes the best SQL.

Navigating Data Science: B2C vs. B2B Analytics

11 minute read

How Customer Types Shape Data Science Roles and Methodologies.

Evaluating ChatGPT’s Data Analysis Improvements: Interactive Tables and Charts

9 minute read

Is ChatGPT becoming a BI tool?

Building a Standout Data Science Portfolio: A Comprehensive Guide

10 minute read

Learn how to create an impactful data science portfolio that showcases your skills and attracts potential employers.

Mastering SQL Optimization: From Functional to Efficient Queries

11 minute read

Six Simple Yet Effective SQL Tips That Helped Me Reduce 50 Hours of Snowflake Query Time Every Day.

330 Weeks of Data Visualizations: My Journey and Key Takeaways

6 minute read

How consistent practice in data visualization enhanced my data science skills.

From Web Pages to Insights: Integrating Web Scraping and Text Analysis with GPT

10 minute read

Use GPT to summarise content and extract structured data from web pages.

Boost Your Data Analysis with the New ChatGPT Desktop App

3 minute read

How does ChatGPT Desktop App seamlessly integrate into your data analysis workflow and boost productivity.

Topic Summarization and Categorization with GPT

10 minute read

Use GPT-3.5 API for text analytics to categorize and summarize data science blog posts.

Evaluating ChatGPT in Data Science: Churn Prediction Analysis As An Example

8 minute read

Can ChatGPT assist or even replace a data scientist?.

My First GPTs

2 minute read

In my previous post, I delved into the exciting realm of OpenAI’s latest offerings, setting the stage for an even more intriguing exploration this week. Toda...

2023 LinkedIn Post Engagement Analysis

7 minute read

On Jan 2nd this year, I posted my annual reflection on LinkedIn. I am very happy to see some great interactions on the post and as a result, an increase in w...

llm

Rethinking Data Science Interviews in the Age of AI

10 minute read

How AI is transforming data science interviews — and what hiring managers and candidates should do to adapt.

How AI Is Rewriting the Day-to-Day of Data Scientists

11 minute read

From eliminating low-value tasks to accelerating high-impact projects, here’s how AI is reshaping the data science workflow.

Google’s Data Science Agent: Can It Really Do Your Job?

10 minute read

I tested Google’s Data Science Agent in Colab—here’s what it got right (and where it failed).

DeepSeek V3: A New Contender in AI-Powered Data Science

10 minute read

How DeepSeek’s budget-friendly AI model stacks up against ChatGPT, Claude, and Gemini in SQL, EDA, and machine learning.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 3): Best AI Assistant for Machine Learning

10 minute read

How AI can accelerate your ML projects from feature engineering to model training.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 2): Who’s the Best at EDA?

12 minute read

Five criteria to compare ChatGPT, Claude, and Gemini in tackling Exploratory Data Analysis.

Build a RAG-Based Chatbot to Retrieve Visualizations in 3 Steps

7 minute read

A step-by-step guide to creating a visualization discovery chatbot with OpenAI API, FAISS, and Streamlit.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 1)

19 minute read

Ten Questions to test which AI assistant writes the best SQL.

Evaluating ChatGPT’s Data Analysis Improvements: Interactive Tables and Charts

9 minute read

Is ChatGPT becoming a BI tool?

From Web Pages to Insights: Integrating Web Scraping and Text Analysis with GPT

10 minute read

Use GPT to summarise content and extract structured data from web pages.

Boost Your Data Analysis with the New ChatGPT Desktop App

3 minute read

How does ChatGPT Desktop App seamlessly integrate into your data analysis workflow and boost productivity.

Topic Summarization and Categorization with GPT

10 minute read

Use GPT-3.5 API for text analytics to categorize and summarize data science blog posts.

Evaluating ChatGPT in Data Science: Churn Prediction Analysis As An Example

8 minute read

Can ChatGPT assist or even replace a data scientist?.

My First GPTs

2 minute read

In my previous post, I delved into the exciting realm of OpenAI’s latest offerings, setting the stage for an even more intriguing exploration this week. Toda...

Update My Blog with GPT

5 minute read

Today, I gained access to the GPT All Tools feature, an exciting upgrade for Plus users that integrates DALLE, browsing, and analysis with GPT-4, all within ...

Course Notes - ChatGPT Prompt Engineering

14 minute read

ChatGPT has been a very hot topic recently, and has shown great potential to improve productivity. Yesterday, I took the ChatGPT Prompt Engineering for Devel...

data visualization summary

My 2025 Weekly Vizzes

1 minute read

List of my weekly visualizations in 2025 (eightly year since 2018)

My 2024 Weekly Vizzes

2 minute read

This is my seventh year of this weekly visualization project. I began this journey in 2018 when I started my first full-time job. The goal is to visualize a ...

Beyond Line and Bar Charts: 7 Less Common But Powerful Visualization Types

12 minute read

Step up your data storytelling game with these creative and insightful visualizations.

Build a RAG-Based Chatbot to Retrieve Visualizations in 3 Steps

7 minute read

A step-by-step guide to creating a visualization discovery chatbot with OpenAI API, FAISS, and Streamlit.

330 Weeks of Data Visualizations: My Journey and Key Takeaways

6 minute read

How consistent practice in data visualization enhanced my data science skills.

From Web Pages to Insights: Integrating Web Scraping and Text Analysis with GPT

10 minute read

Use GPT to summarise content and extract structured data from web pages.

My 2023 Weekly Vizzes

2 minute read

This is my sixth year of this weekly visualization initiative ;) The goal is to find some fun datasets, visualize them in some fun (or boring) ways, and extr...

My 2022 Weekly Vizzes

2 minute read

This is my fifth year of this weekly visualization initiative ;) The goal is to find some fun datasets, visualize them in some fun (or boring) ways, and extr...

My 2021 Weekly Vizzes

3 minute read

Though MakeoverMonday project went into an ‘indefinite hiatus’ from 2021/9/27, I will keep on this weekly Tableau visualization journey. Please notice that ...

My Data Science Projects List

less than 1 minute read

This is an archive of my past data science and analytics projects. Data Science & Analytics Projects Fraud Detection Machine Learning Algorithms ...

My 2020 MakeoverMonday Vizzes

3 minute read

This has been my third year doing Tableau Makeovermonday. Another fruitful year trying out 52 different visualizations on various topics :) MakeoverMonday i...

My 2019 MakeoverMonday Vizzes

3 minute read

Throughout 2019, I have been putting aside one hour every Monday to work on my Tableau visualizations following the Makeovermonday project. MakeoverMonday i...

My 2018 MakeoverMonday Vizzes

3 minute read

Starting from Jan 08, 2018, I decide to put aside one hour on Monday weekly to create some visualization and find some insights from the data. MakeoverMonda...

career

Rethinking Data Science Interviews in the Age of AI

10 minute read

How AI is transforming data science interviews — and what hiring managers and candidates should do to adapt.

The Secret Power of Data Science in Customer Support

7 minute read

Customer Support is a data goldmine. Here’s how to unlock its full potential with data science.

Mastering 1:1s as a Data Scientist: From Status Updates to Career Growth

7 minute read

Use your 1:1s to gain visibility, solve challenges, and advance your career.

5 Essential Tips to Build Business Dashboards Stakeholders Love

8 minute read

A practical guide to designing clear, effective, and actionable dashboards for decision-making.

From Data Scientist to Data Manager: My First 3 Months Leading a Team

8 minute read

Reflections on moving from hands-on work to mentoring and leading.

My Medium Journey as a Data Scientist: 6 Months, 18 Articles, and 3,000 Followers

9 minute read

Real numbers, earnings, and data-driven growth strategy for Medium writers.

Navigating Data Science: B2C vs. B2B Analytics

11 minute read

How Customer Types Shape Data Science Roles and Methodologies.

Building a Standout Data Science Portfolio: A Comprehensive Guide

10 minute read

Learn how to create an impactful data science portfolio that showcases your skills and attracts potential employers.

My Five Key Learnings To Be a Better Data Scientist

10 minute read

Reflection on my six-year data science career.

Five Years in My DS Career

10 minute read

I started my first full-time data science job in Jan 2018, working as an Associate Product Analyst at Ancestry.com. This month, I officially finished the 5th...

Advice On Starting A New Job

5 minute read

This week marked my first month at Brex. Time flies and it’s always surprising to see how many discoveries I have made in this first month when looking back....

coding

Building a Standout Data Science Portfolio: A Comprehensive Guide

10 minute read

Learn how to create an impactful data science portfolio that showcases your skills and attracts potential employers.

Mastering SQL Optimization: From Functional to Efficient Queries

11 minute read

Six Simple Yet Effective SQL Tips That Helped Me Reduce 50 Hours of Snowflake Query Time Every Day.

From Web Pages to Insights: Integrating Web Scraping and Text Analysis with GPT

10 minute read

Use GPT to summarise content and extract structured data from web pages.

Topic Summarization and Categorization with GPT

10 minute read

Use GPT-3.5 API for text analytics to categorize and summarize data science blog posts.

My First GPTs

2 minute read

In my previous post, I delved into the exciting realm of OpenAI’s latest offerings, setting the stage for an even more intriguing exploration this week. Toda...

Update My Blog with GPT

5 minute read

Today, I gained access to the GPT All Tools feature, an exciting upgrade for Plus users that integrates DALLE, browsing, and analysis with GPT-4, all within ...

My Atypical LeetCode Weekly Contests Journey As a Data Scientist

7 minute read

I did my first Leetcode Weekly Contest back in April 2020 (Contest 186). Since then, I have been participating in the weekly contest almost every Saturday, a...

How I Ramped Up My Blog Site UI

6 minute read

This weekend, I spent ~5 hours ramping up the UI of this personal website. Previously, it was using the default ‘slate’ Jekyll theme, which was set up direct...

A Starter Code for Xgboost Regression

4 minute read

These days I have been writing too much SQL… Therefore, last week, to refresh my knowledge on xgboost and general modeling project process in R and Python, I...

machine learning

Google’s Data Science Agent: Can It Really Do Your Job?

10 minute read

I tested Google’s Data Science Agent in Colab—here’s what it got right (and where it failed).

DeepSeek V3: A New Contender in AI-Powered Data Science

10 minute read

How DeepSeek’s budget-friendly AI model stacks up against ChatGPT, Claude, and Gemini in SQL, EDA, and machine learning.

Unlocking the Power of Machine Learning in Analytics: Practical Use Cases and Skills

8 minute read

Your essential machine learning checklist to excel as a data scientist in analytics.

Seven Common Causes of Data Leakage in Machine Learning

7 minute read

Key Steps in Data Preprocessing, Feature Engineering, and Train-test Splitting to Prevent Data Leakage.

ChatGPT vs. Claude vs. Gemini for Data Analysis (Part 3): Best AI Assistant for Machine Learning

10 minute read

How AI can accelerate your ML projects from feature engineering to model training.

Evaluating ChatGPT in Data Science: Churn Prediction Analysis As An Example

8 minute read

Can ChatGPT assist or even replace a data scientist?.

My Data Science Projects List

less than 1 minute read

This is an archive of my past data science and analytics projects. Data Science & Analytics Projects Fraud Detection Machine Learning Algorithms ...

A Starter Code for Xgboost Regression

4 minute read

These days I have been writing too much SQL… Therefore, last week, to refresh my knowledge on xgboost and general modeling project process in R and Python, I...

website

Building a Standout Data Science Portfolio: A Comprehensive Guide

10 minute read

Learn how to create an impactful data science portfolio that showcases your skills and attracts potential employers.

Update My Blog with GPT

5 minute read

Today, I gained access to the GPT All Tools feature, an exciting upgrade for Plus users that integrates DALLE, browsing, and analysis with GPT-4, all within ...

2023 LinkedIn Post Engagement Analysis

7 minute read

On Jan 2nd this year, I posted my annual reflection on LinkedIn. I am very happy to see some great interactions on the post and as a result, an increase in w...

How I Ramped Up My Blog Site UI

6 minute read

This weekend, I spent ~5 hours ramping up the UI of this personal website. Previously, it was using the default ‘slate’ Jekyll theme, which was set up direct...

online courses

Course Notes - ChatGPT Prompt Engineering

14 minute read

ChatGPT has been a very hot topic recently, and has shown great potential to improve productivity. Yesterday, I took the ChatGPT Prompt Engineering for Devel...

Data Science & Analytics Reading List

3 minute read

This summer I got the opprotunity to mentor an intern in the Product Analytics team at Ancestry. I personally learned a lot from my mentor when I was an anal...

Online Courses Reviews

8 minute read

Online courses have been a great supplementary part to my offline study and work. Whenever I am interested in exploring some new fields, or find myself lacki...

web scraping

From Web Pages to Insights: Integrating Web Scraping and Text Analysis with GPT

10 minute read

Use GPT to summarise content and extract structured data from web pages.

presentation

From Insights to Impact: Presentation Skills Every Data Scientist Needs

6 minute read

How to structure, design, and deliver data presentations that win over stakeholders.

Posts by Tag

data visualization