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Data Science

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

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"You improved" is a statistical claim, and on eight attempts it is usually false

"You improved" is a statistical claim, and on eight attempts it is usually false

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4 min read
Window functions vs Aggregate functions

Window functions vs Aggregate functions

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9 min read
YouTube Crawler: Data Extraction vs. Video Downloads

YouTube Crawler: Data Extraction vs. Video Downloads

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7 min read
Power Bi: Data Modelling, Relationships and Joins

Power Bi: Data Modelling, Relationships and Joins

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6 min read
Matching Kalshi and Polymarket contracts is harder than it looks (and how I made it mostly work)

Matching Kalshi and Polymarket contracts is harder than it looks (and how I made it mostly work)

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3 min read
I backtested a forecast-based model against Kalshi's temperature markets. The market won. Here's the data.

I backtested a forecast-based model against Kalshi's temperature markets. The market won. Here's the data.

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5 min read
One wallet minted 3,339 tokens: spotting deployer factories and bundler clusters on-chain

One wallet minted 3,339 tokens: spotting deployer factories and bundler clusters on-chain

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4 min read
I removed 40% of my own rows. I can only prove that 27% of them were wrong.

I removed 40% of my own rows. I can only prove that 27% of them were wrong.

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9 min read
A Metric Dropped. What Charts Help Find the Root Cause?

A Metric Dropped. What Charts Help Find the Root Cause?

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8 min read
Reverse-Engineering Messy Databases: My End-to-End Data Audits Across 17,000+ Relational Schema Logs

Reverse-Engineering Messy Databases: My End-to-End Data Audits Across 17,000+ Relational Schema Logs

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4 min read
Airbnb has no public API - how to get listing and price data for any city (Python)

Airbnb has no public API - how to get listing and price data for any city (Python)

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4 min read
Parametric vs Non-Parametric Statistical Tests in Python

Parametric vs Non-Parametric Statistical Tests in Python

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6 min read
Introduction to Machine Learning

Introduction to Machine Learning

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10 min read
FraudGraph AI: Building an Agentic GraphRAG Fraud Investigation Platform with TigerGraph and LangGraph

FraudGraph AI: Building an Agentic GraphRAG Fraud Investigation Platform with TigerGraph and LangGraph

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14 min read
I built a self-hostable AI data analyst — 4 agents, sandboxed code execution, your choice of LLM

I built a self-hostable AI data analyst — 4 agents, sandboxed code execution, your choice of LLM

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5 min read
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