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Data Science

Data Science allows us to extract meaning from and interpret data.

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📕 Dataford Job Market Report

📕 Dataford Job Market Report

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5 min read
Why Data People Are Moving Beyond Excel

Why Data People Are Moving Beyond Excel

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3 min read
The `epsActual` That Wasn't: 15% of an LLM Backtest's Trades Were Decided on Data That Didn't Exist Yet

The `epsActual` That Wasn't: 15% of an LLM Backtest's Trades Were Decided on Data That Didn't Exist Yet

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5 min read
14% of the Web Is Actually Dead — But Not How You Think (We Scanned 10M Domains)

14% of the Web Is Actually Dead — But Not How You Think (We Scanned 10M Domains)

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3 min read
Your bandit's exploration floor probably violates its own floor

Your bandit's exploration floor probably violates its own floor

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3 min read
A model with R-squared near 0 can still give valid 90% prediction intervals - here's why (and the catch)

A model with R-squared near 0 can still give valid 90% prediction intervals - here's why (and the catch)

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4 min read
What 506K real transactions taught me about how Latin Americans actually save

What 506K real transactions taught me about how Latin Americans actually save

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3 min read
When your optimizer silently returns the wrong answer (and how to catch it)

When your optimizer silently returns the wrong answer (and how to catch it)

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4 min read
How to Rewrite a Chinese-Tenured Faculty Role for US Data Scientist Jobs

How to Rewrite a Chinese-Tenured Faculty Role for US Data Scientist Jobs

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4 min read
The 12 Data Modeling Interview Questions that Matter

The 12 Data Modeling Interview Questions that Matter

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8 min read
I Built a Python Library for Synthetic Dataset Generation and Missing Value Simulation

I Built a Python Library for Synthetic Dataset Generation and Missing Value Simulation

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2 min read
Python interview questions: what each one actually predicts on the job (2026)

Python interview questions: what each one actually predicts on the job (2026)

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18 min read
When Polymarket says 70%, does it happen 70% of the time? I checked against 19.4M price snapshots.

When Polymarket says 70%, does it happen 70% of the time? I checked against 19.4M price snapshots.

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4 min read
My Journey Learning Excel for Data Analysis

My Journey Learning Excel for Data Analysis

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2 min read
Creating HIPAA-Safe Synthetic Patient Data for Healthcare App Testing

Creating HIPAA-Safe Synthetic Patient Data for Healthcare App Testing

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4 min read
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