zzstoatzz.io
semantic bufo search
find-bufo.com
bufo
filter out zero-scored results from hybrid search
problem: when alpha=0.0 (pure keyword), results from vector search
that don't match the keyword were appearing with 0.0 scores, polluting
the result set with irrelevant bufos
solution: filter out results with score < 0.001 before sorting
- prevents vector-only results when alpha=0.0 (pure keyword)
- prevents keyword-only results when alpha=1.0 (pure semantic)
- keeps result set clean and relevant
tested:
- query=redis, alpha=0.0 → 1 result (was 5 with 4 zeros) ✓
- query=bufo, alpha=0.0 → 5 clean results (no zeros) ✓
- query=happy, alpha=0.5 → balanced hybrid mix ✓
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
+5
+5
src/search.rs
+5
src/search.rs
···
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})
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.collect();
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// filter out zero-scored results (irrelevant matches from the other search method)
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// this prevents vector-only results from appearing when alpha=0.0 (pure keyword)
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// and keyword-only results from appearing when alpha=1.0 (pure semantic)
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fused_scores.retain(|(_, score)| *score > 0.001);
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// sort by fused score (descending) and take top_k
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fused_scores.sort_by(|a, b| b.1.partial_cmp(&a.1).unwrap());
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fused_scores.truncate(top_k_val);