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3 changes: 3 additions & 0 deletions .jules/bolt.md
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## 2024-05-24 - Memoize deterministic regex compilations and lexicon generation in text-processing pipelines
**Learning:** In NLP or text-processing pipelines (e.g., within `openmed.clinical`), deterministic operations like regex compilations (`re.compile`) and lexicon generation are extremely expensive if called repeatedly per string evaluation. Without memoization, functions like `_compiled_context_lexicon` cause severe performance bottlenecks during span evaluations.
**Action:** Always memoize deterministic regex compilations and lexicon generation (e.g., using `@functools.lru_cache`) when they are repeatedly called per string or span evaluation, provided the return type is immutable (e.g., a frozen dataclass).
2 changes: 2 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
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backward_context_cues: frozenset[str]


@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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