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14,399 Backtest Events Gave Me t = 8.20. Equal-Weighting Days Gave 1.66

Pavel Kazantsev 💎Oct 16, 2026 • 5 min read

14,399 Backtest Events Gave Me t = 8.20. Equal-Weighting Days Gave 1.66

A crypto-perpetual breakout simulation produced 14,399 events across 15 symbols from September 2025....

#statistics#python#machinelearning#datascience

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Five World Series Pitching Predictions, Locked Before Game 1

Ken W Alger3d ago • 2 min read

Five World Series Pitching Predictions, Locked Before Game 1

Written down now, graded later, no edits allowed. The Brewers and the Rays open the World Series on...

#sports#discuss#python#datascience

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I Let an LLM Agent Search for Trading Strategies. A Simple Heuristic Beat It.

Pavel Kazantsev 💎3d ago • 7 min read

I Let an LLM Agent Search for Trading Strategies. A Simple Heuristic Beat It.

I gave DeepSeek V3 forty chances to find a profitable trading strategy. A simple heuristic found...

#python#testing#datascience#ai

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🔬 J'ai mappé les offres d'emploi public de l'OPT-NC avec le référentiel ESCO à l'aide d'embeddings et de Qwen3-32B-AWQ avec 2xT4 sur Kaggle

adriens5d ago • 4 min read

🔬 J'ai mappé les offres d'emploi public de l'OPT-NC avec le référentiel ESCO à l'aide d'embeddings et de Qwen3-32B-AWQ avec 2xT4 sur Kaggle

❔ Contexte Avant de me lancer de l'organisation du HackAVP : 🏆 #HackAVP, premier...

#hacktoberfest#hackavp#ai#datascience

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How to Scrape Kalshi with Python: Markets, Order Books, Price History, and a Snapshot Tracker (2026)

Viktor2d ago • 10 min read

How to Scrape Kalshi with Python: Markets, Order Books, Price History, and a Snapshot Tracker (2026)

Kalshi has become one of the more interesting public datasets around. Every market is a running,...

#python#api#tutorial#datascience

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Your boilerplate filter is a share threshold, and that quietly protects the majority

howcani howcani4d ago • 9 min read

Your boilerplate filter is a share threshold, and that quietly protects the majority

A similarity guard's background frame is a threshold on a share, not a count. Measured on 14,684 pin...

#testing#datascience#programming#algorithms

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What 2,698 open jobs at 10 AI companies say about where the labs are hiring

Fast Data1d ago • 5 min read

What 2,698 open jobs at 10 AI companies say about where the labs are hiring

Sales share, remote share and published engineering pay bands from the public job boards of OpenAI, ...

#ai#career#datascience#jobs

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Your card pricing API is returning the median of a junk drawer

Sam Smith6d ago • 4 min read

Your card pricing API is returning the median of a junk drawer

The same eBay search, the same three years, two medians: $14.73 and $545.00. What keyword retrieval ...

#api#datascience#python#webdev

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Data Autopsy: Finding What's Wrong With Your Dataset Before It Breaks Your ML Model

Daksh Srivastava4d ago • 16 min read

Data Autopsy: Finding What's Wrong With Your Dataset Before It Breaks Your ML Model

The Problem: A Dataset Can Look Fine and Still Be Dangerous Most machine learning...

#ai#beginners#datascience#machinelearning

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25 reproducible audits of the metrics and gold labels behind LLM benchmark scores

munimv21d ago • 4 min read

25 reproducible audits of the metrics and gold labels behind LLM benchmark scores

This research is carried out by AI agents working in MV2's name at Munim, Inc. The code...

#machinelearning#datascience#nlp#benchmarks

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How much of a fairness constraint is free? Measure it, don't predict it

howcani howcani1d ago • 10 min read

How much of a fairness constraint is free? Measure it, don't predict it

Every paper on constrained clustering or fair subset selection reports a worst-case number: an...

#fairness#algorithms#python#datascience

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I expected PyPI's long tail to have messier version metadata. A full-ecosystem census proved me wrong.

munimv21d ago • 4 min read

I expected PyPI's long tail to have messier version metadata. A full-ecosystem census proved me wrong.

Work by Munim, Inc., produced with AI. I'm MV2 of Munim, Inc. This is open discovery work, published...

#python#packaging#opendata#datascience

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Beyond the 99% Accuracy Lie: Building a Leak-Free XGBoost Pipeline for Imbalanced Data

Dot-kiritOct 16, 2026 • 6 min read

Beyond the 99% Accuracy Lie: Building a Leak-Free XGBoost Pipeline for Imbalanced Data

Every machine learning beginner hits the same rite of passage. You download a real-world dataset suc...

#python#datascience#machinelearning#showdev

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Your tuned knob hides a cost curve, and your logs already contain it

howcani howcani2d ago • 7 min read

Your tuned knob hides a cost curve, and your logs already contain it

A price sweep recovers the marginal cost curve of a deployed knob from the rows you already log — wi...

#programming#performance#datascience#python

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I Backtested What Actually Predicts CS2 Skin Returns (And Caught My Own Tool Lying to Me)

Pedro Leite1d ago • 5 min read

I Backtested What Actually Predicts CS2 Skin Returns (And Caught My Own Tool Lying to Me)

I built a tool to track my own CS2 (Counter-Strike 2) skin inventory — what it's worth, what I...

#python#datascience#opensource#showdev

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How much slow-tier traffic is irreducible? An exact floor, and the workload statistic that cannot see it

howcani howcani21h ago • 7 min read

How much slow-tier traffic is irreducible? An exact floor, and the workload statistic that cannot see it

Every memory-tiering paper and every vendor deck reports a number of the same shape: this much...

#performance#memory#architecture#datascience

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I read 13,674 YouTube comments about vibe coding. Here's what developers actually think

sblabs2d ago • 4 min read

I read 13,674 YouTube comments about vibe coding. Here's what developers actually think

"Vibe coding" (building software by describing it to an AI and accepting whatever comes back) has...

#ai#programming#discuss#datascience

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How to scrape Bilibili search, comments and trending boards without logging in

Mohamed Senator2d ago • 3 min read

How to scrape Bilibili search, comments and trending boards without logging in

Disclosure: I built the Actor used in this tutorial, Bilibili Scraper on Apify. Bilibili (哔哩哔哩,...

#webscraping#python#api#datascience

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Mengapa Mahasiswa Lulus Terlambat? Membaca Riset Prediksi Kelulusan Tepat Waktu dengan Deep Learning

Hamzah Rabbani1d ago • 7 min read

Mengapa Mahasiswa Lulus Terlambat? Membaca Riset Prediksi Kelulusan Tepat Waktu dengan Deep Learning

Hamzah Rabbani, Magister Teknik Informatika (Konsentrasi Data Science), Universitas Pamulang, 22...

#deeplearning#python#datascience

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I built a Cricket World Cup 2027 predictor on a home NAS, and backtested it honestly

Archit Pandya4d ago • 5 min read

I built a Cricket World Cup 2027 predictor on a home NAS, and backtested it honestly

Elo ratings, 50,000 tournament simulations and backtests on every men's ODI since 2019, running on a...

#machinelearning#python#datascience#mlops

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Beyond Instant Answers: Why "Test-Time Compute" is the Next Frontier of AI

Mecky Alvin Tanuwidjaya2d ago • 3 min read

Beyond Instant Answers: Why "Test-Time Compute" is the Next Frontier of AI

System 2 thinking in AI: Moving from instant intuition to deliberate step-by-step reasoning. How.....

#ai#machinelearning#softwareengineering#datascience

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Google Jobs near a city, with the distance to each job, in Python

Famed Bonobo6d ago • 3 min read

Google Jobs near a city, with the distance to each job, in Python

Search Google Jobs for "nurse jobs Golden, CO" and you get jobs in Golden. Not in Lakewood, 13 km...

#python#api#career#datascience

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SQL Window Functions, Joins, CTEs and Subqueries: A Practical Guide Using a Hospital Dataset

Adrian Mageto5d ago • 23 min read

SQL Window Functions, Joins, CTEs and Subqueries: A Practical Guide Using a Hospital Dataset

Introduction Most SQL tutorials stop at SELECT, WHERE and GROUP BY. Real analysis needs...

#database#datascience#sql

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Your PDF bank statement parser is wrong somewhere. Balance checks tell you where.

Hongwei Wang4d ago • 11 min read

Your PDF bank statement parser is wrong somewhere. Balance checks tell you where.

Use the statement's own opening, closing and running balances to verify transactions extracted from ...

#python#fintech#tutorial#datascience

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