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Optimal Transport: Why Wasserstein Distance Sees Geometry That KL Divergence Misses

Optimal Transport: Why Wasserstein Distance Sees Geometry That KL Divergence Misses

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9 min read
How Do You Show Two Training Runs Are Equal? A Paired Test on Unseen Text, Using an NPU vs GPU Case

How Do You Show Two Training Runs Are Equal? A Paired Test on Unseen Text, Using an NPU vs GPU Case

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3 min read
Grid Trading Bot Backtest: How to Test One Honestly

Grid Trading Bot Backtest: How to Test One Honestly

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7 min read
Conformal Prediction: Valid Uncertainty Without Distributional Assumptions

Conformal Prediction: Valid Uncertainty Without Distributional Assumptions

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9 min read
Does copying Congress's stock trades work? I tested 17,859 disclosures

Does copying Congress's stock trades work? I tested 17,859 disclosures

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3 min read
Checking the math with code: simulating 200,000 NFL seasons in Python

Checking the math with code: simulating 200,000 NFL seasons in Python

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2 min read
A Tiny Probability Puzzle Every Developer Should Try

A Tiny Probability Puzzle Every Developer Should Try

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3 min read
Why Graduate Students Pay $70 an Hour to Ask Which Statistical Test to Use

Why Graduate Students Pay $70 an Hour to Ask Which Statistical Test to Use

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5 min read
Doubly Robust Estimation: When Two Imperfect Models Still Get Causality Right

Doubly Robust Estimation: When Two Imperfect Models Still Get Causality Right

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8 min read
How many perfect seasons should a 32-team league expect? A quick binomial estimate

How many perfect seasons should a 32-team league expect? A quick binomial estimate

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1 min read
Do stocks go up after insiders buy? I tested 47,458 open-market purchases

Do stocks go up after insiders buy? I tested 47,458 open-market purchases

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4 min read
When a Low IRT Discrimination Score Is a Pipeline Problem

When a Low IRT Discrimination Score Is a Pipeline Problem

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8 min read
Crypto Trading Bot Backtesting: An Honest How-To Guide

Crypto Trading Bot Backtesting: An Honest How-To Guide

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6 min read
Bootstrap: Understanding Sampling with Replacement Through Five Numbers

Bootstrap: Understanding Sampling with Replacement Through Five Numbers

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3 min read
Fixed vs random effects in Python, and what a Hausman test result actually tells you

Fixed vs random effects in Python, and what a Hausman test result actually tells you

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3 min read
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