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Modify BM25 search params and fuzziness

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Decreasing Length normalization impact factor. I don't want notes to be
ranked as differently if they are long vs. short.
This commit is contained in:
Tanner Collin
2026-02-13 12:18:45 -07:00
parent 7a1414d397
commit b6f98f5d04
1 changed files with 5 additions and 5 deletions
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src/search/search-engine.ts
+5 -5
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@@ -166,12 +166,12 @@ export class SearchEngine {
logVerbose(JSON.stringify(searchTokens, null, 1)) logVerbose(JSON.stringify(searchTokens, null, 1))
let results = this.minisearch.search(searchTokens, { let results = this.minisearch.search(searchTokens, {
prefix: term => term.length >= options.prefixLength, prefix: term => term.length >= options.prefixLength,
bm25: {b: 0.7, d: 0.5, k: 1.2}, bm25: {b: 0.2, d: 0.5, k: 1.2},
// length <= 3: no fuzziness // length <= 4: no fuzziness
// length <= 5: fuzziness of 10% // length <= 5: 1/2 fuzziness
// length > 5: fuzziness of 20% // length > 5: full fuzziness
fuzzy: term => fuzzy: term =>
term.length <= 3 ? 0 : term.length <= 5 ? fuzziness / 2 : fuzziness, term.length <= 4 ? 0 : term.length <= 5 ? fuzziness / 2 : fuzziness,
boost: { boost: {
basename: settings.weightBasename, basename: settings.weightBasename,
aliases: settings.weightBasename, aliases: settings.weightBasename,