Yu Dong

Data Science & Analytics, Data Storyteller

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This is an archive of my past data science and analytics projects.

Data Science & Analytics Projects

  1. Fraud Detection Machine Learning Algorithms
  2. Kaggle Competitions
  3. City of LA 311 Call Center Data Analysis
  4. Movie Recommender System

Data Visualization Projects

Weekly Data Visualizations

you can also find all the above vizzes in my Tableau Gallery

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Weekly Viz 2025-01-13

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US Overseas Visitors I have looked at tourism data to Japan and Europe, but not to the US (as I live in the US myself). Therefore, this week I decided to lo...

My 2025 Weekly Vizzes

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This is my eighth 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 r...

Weekly Viz 2025-01-06

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Time Spent on Activities For the first visualization of 2025, let’s look at how much time people spend on their hobbies. The data comes from The Economics D...

Reading Notes 2024 Nov - Dec

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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...