DEV Community

Data Science

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

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
Douban has no public API anymore — here's how I get movie & book ratings as JSON

Douban has no public API anymore — here's how I get movie & book ratings as JSON

Comments
2 min read
From 233 tennis matches to one pressure game: connect four Actors into a research workflow

From 233 tennis matches to one pressure game: connect four Actors into a research workflow

Comments
7 min read
Six ways an ML pipeline fools itself (and the devices that caught them)

Six ways an ML pipeline fools itself (and the devices that caught them)

Comments
2 min read
5 rules we used to turn 164,963 daily follower readings into one honest growth number

5 rules we used to turn 164,963 daily follower readings into one honest growth number

Comments 1
3 min read
Filtering Data in SQL: A Beginner's Guide to WHERE, IN, BETWEEN, NULL, and LIKE

Filtering Data in SQL: A Beginner's Guide to WHERE, IN, BETWEEN, NULL, and LIKE

1
Comments 1
3 min read
We turned down 802 of 1,051 companies. Here is the SQL to read your own reject reasons

We turned down 802 of 1,051 companies. Here is the SQL to read your own reject reasons

Comments
3 min read
Gaussian Processes: Why Kernels Are Priors Over Functions, Not Just Similarity Scores

Gaussian Processes: Why Kernels Are Priors Over Functions, Not Just Similarity Scores

Comments
8 min read
Which Polish job ads state pay? Transport 37%, health care under 5% (28 October 2026)

Which Polish job ads state pay? Transport 37%, health care under 5% (28 October 2026)

Comments
2 min read
How to Benchmark an AI Detector on Your Own Data (Precision, Recall and False Positives in Python)

How to Benchmark an AI Detector on Your Own Data (Precision, Recall and False Positives in Python)

Comments
4 min read
SEC's API had Apple's pre-market 10-Q at 10:01 ET. This week it reads 06:01. Your cache doesn't.

SEC's API had Apple's pre-market 10-Q at 10:01 ET. This week it reads 06:01. Your cache doesn't.

1
Comments
4 min read
How long is the same sentence in 11 languages? Measuring a tiny parallel corpus

How long is the same sentence in 11 languages? Measuring a tiny parallel corpus

Comments
3 min read
PyTorch Custom Dataset and DataLoader: __getitem__, __len__, collate_fn, and num_workers

PyTorch Custom Dataset and DataLoader: __getitem__, __len__, collate_fn, and num_workers

Comments
9 min read
Look-ahead bias: the backtest bug that uses tomorrow's newspaper

Look-ahead bias: the backtest bug that uses tomorrow's newspaper

Comments
2 min read
Prophecy's DataGPT Puts Enterprise Data Work Inside ChatGPT, Claude and Copilot — and Shows Its Working

Prophecy's DataGPT Puts Enterprise Data Work Inside ChatGPT, Claude and Copilot — and Shows Its Working

Comments
6 min read
Why I pre-register a kill-gate for every experiment

Why I pre-register a kill-gate for every experiment

Comments
5 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.