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⚡ Bolt: Memoize clinical context lexicon compilation #31

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⚡ Bolt: Memoize clinical context lexicon compilation #31

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3 changes: 3 additions & 0 deletions .jules/bolt.md
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## 2025-03-01 - [Bolt: Fix Clinical Context Lexicon Generation Time]
**Learning:** The openmed project's `openmed.clinical.context` relies heavily on `_compiled_context_lexicon` which recursively compiles and computes large numbers of regexs. Because this wasn't cached, it added up linearly during multiple queries or requests (i.e. spans/modifiers evaluations in text).
**Action:** Use `functools.lru_cache` to cache deterministic regex compilations and lexicon generation in text/NLP pipelines.
3 changes: 3 additions & 0 deletions openmed/openmed/clinical/context.py
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from __future__ import annotations

import functools
import re
from collections.abc import Iterable, Iterator, Mapping, Sequence
from dataclasses import dataclass, replace
Expand Down Expand Up @@ -154,6 +155,8 @@ class _CompiledContextLexicon:
backward_context_cues: frozenset[str]


# Memoize lexicon compilation to prevent repeated regex generation and improve performance
@functools.lru_cache
def _compiled_context_lexicon(language: str | None = None) -> _CompiledContextLexicon:
lexicon = get_clinical_cue_lexicon(language)
token_boundaries = lexicon.token_boundaries
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