# UC Riverside's SemLoc Beats Classic Bug Finders by 36 Points Using LLMs — retained record

> Retained news record from news:ml-alphasignal.

Canonical: https://highsignal.app/data/records/22806138d22f8fe0

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source: [news](https://highsignal.app/data/news) (news:ml-alphasignal)  published 2026-10-28 06:01 ingested 2026-10-29 03:02

[original source ↗](https://alphasignal.ai/news/uc-riverside-s-semloc-beats-classic-bug-finders-by-36-points-using-llms)

## retained text



```
SemLoc turns LLM program reasoning into runtime-checkable constraints, boosting Python fault localization Top-1 accuracy from 6.4% to 42.8% over spectrum baselines.
```



document fetched 2026-10-29 03:02