Detect plagiarised and similar code across trillions of code sources on the web See what's new
David Kim

David Kim

Platform Engineer at Codequiry

David works on the scanning pipeline and API that power Codequiry checks at scale, from ingestion to results delivery.

Articles by David Kim

The Assignment That Broke Every Plagiarism Checker General 10 min
David Kim David Kim • 4 months ago

The Assignment That Broke Every Plagiarism Checker

A single, brilliantly simple programming assignment exposed a fundamental flaw in how we detect copied code. Students aren't just copying—they're engineering similarity. This deep dive reveals the algorithmic arms race between educators and cheaters, moving beyond token matching to the structural and semantic analysis that actually works.

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Your Students Are Using AI and You're Not Seeing It AI Detection 8 min
David Kim David Kim • 4 months ago

Your Students Are Using AI and You're Not Seeing It

AI-generated code isn't always obvious copy-paste jobs. It's a sophisticated mimic, leaving subtle fingerprints in style, logic, and structure. Here are the seven nuanced patterns that reveal a student didn't write the code they submitted, and what to do about it.

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Your AI Detection Tool Is Probably a Random Number Generator AI Detection 2 min
David Kim David Kim • 4 months ago

Your AI Detection Tool Is Probably a Random Number Generator

The market is flooded with AI-generated code detectors that promise certainty but deliver statistical noise. We audited three popular tools against a controlled dataset of 500 student submissions and found their accuracy was no better than a coin flip. It's time to demand evidence, not marketing claims, before you fail a student.

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