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

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Out-of-Bag Error: The Free Exam You Didn't Know You Were Already Taking

Out-of-Bag Error: The Free Exam You Didn't Know You Were Already Taking

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19 min read
Everyone Knows It Scores Half. Nobody Checks Which Half.

Everyone Knows It Scores Half. Nobody Checks Which Half.

Comments 6
15 min read
Building a geopolitical signal desk: AIS corridor pressure, multi-source price cross-validation, and corroboration logic

Building a geopolitical signal desk: AIS corridor pressure, multi-source price cross-validation, and corroboration logic

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3 min read
Deployment isn't the finish line: validating and monitoring credit models

Deployment isn't the finish line: validating and monitoring credit models

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5 min read
Run forty experiments against one eval set and you will find an improvement that is not there

Run forty experiments against one eval set and you will find an improvement that is not there

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4 min read
I Built a Natural Language -> pandas Code Generator (Open Source + Free)

I Built a Natural Language -> pandas Code Generator (Open Source + Free)

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3 min read
I tracked every trending AI repo's stars daily for 3 weeks. The growth is not where I expected

I tracked every trending AI repo's stars daily for 3 weeks. The growth is not where I expected

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3 min read
From Raw Prices to Real Signals: Financial Metrics for a Data Pipeline (Daily Return, MA, RSI, MACD, Volatility)

From Raw Prices to Real Signals: Financial Metrics for a Data Pipeline (Daily Return, MA, RSI, MACD, Volatility)

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4 min read
The best config in your bake-off didn't win. Selection did.

The best config in your bake-off didn't win. Selection did.

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12 min read
Comprehensive Guide to Python Frameworks & Libraries

Comprehensive Guide to Python Frameworks & Libraries

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9 min read
Tracking New Patent Filings Without an API Key (Google Patents Has a Hidden XHR Endpoint)

Tracking New Patent Filings Without an API Key (Google Patents Has a Hidden XHR Endpoint)

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3 min read
Installing R and RStudio Server on Ubuntu 24.04

Installing R and RStudio Server on Ubuntu 24.04

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3 min read
Why the Same Fundamental Lives Under Different XBRL Tags in SEC EDGAR

Why the Same Fundamental Lives Under Different XBRL Tags in SEC EDGAR

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6 min read
SEC 10-K Filing Deadline Data: The Structural Reason Fundamentals Lag Weeks Behind

SEC 10-K Filing Deadline Data: The Structural Reason Fundamentals Lag Weeks Behind

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5 min read
A CSV sample that looks like the whole dataset is worse than no CSV at all

A CSV sample that looks like the whole dataset is worse than no CSV at all

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5 min read
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