The deterministic pattern detector achieves high pair precision (73.21%) with explicit abstention but covers only 32% of real queries¶
Claim · All claims
Evidence · 1 study · designr2·q2
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person · recheck by 2029: tool and model accuracy changes quickly
Subclaims¶
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q2 i? When the pattern detector commits on the real corpus, its (intent, concept) pair is correct 73.21% of the time, versus 60.00 for gemini-2.0-flash, 39.91 for openrouter-free, and 18.04 for mistral-small, while abstaining on 68% of queries. → Laurent Brisson 2026
Evidence¶
Laurent Brisson 2026¶
Laurent Brisson, Maria Teresa Segarra and Gregory Smits. (2026). A didactical-driven teacher assistant for a dimensional modeling course. https://arxiv.org/abs/2607.22598 doi:10.48550/arxiv.2607.22598
q2 · i? · design · r2
Joint orchestration evaluation on the 195-question real corpus. The lexicon-based pattern detector shows "a radically different precision profile": coverage 32%, pair precision 73.21, and 50 ms median latency, versus gemini-2.0-flash at 95% coverage and 60.00 pair precision.
"The pattern abstains on 68% of real queries (133 out of 195), but when it commits to a response, it achieves a pair precision of 73.21"
Discussion¶
Related Claims¶
- Free-tier LLM detection performance varies widely and differs by corpus: gemini-2.0-flash leads on real data while the pattern detector leads on synthetic data for intent detection — related
- Combining the pattern detector with an LLM fallback does not improve joint detection accuracy over the LLM alone — reports the opposite
- Question and observed-coverage features retrospectively predict high-divergence questions with AUC 0.774, but the model is not validated for new-query routing — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
pattern-detector-high-precision-low-coverage |
title |
The deterministic pattern detector achieves high pair precision (73.21%) with explicit abstention but covers only 32% of real queries |
description |
The deterministic pattern detector achieves high pair precision (73.21%) with explicit abstention but covers only 32% of real queries |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2026 |
recheck_by |
2029 |
generated |
by process:wiki-ingest on 2026-10-10 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — laurent-brisson-2026 |
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