[DP-381] 한국어 토크나이저 + TF-IDF 키워드 추출 구현#53
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
KoreanTokenizer: kiwipiepy 형태소 분석(NNG/NNP/SL), 불용어·짧은 토큰·숫자 토큰 제거TfidfAnalyzer: scikit-learn TfidfVectorizer(1~2gram, top 30) 기반 키워드·점수 추출, cold start fallback 포함app/core/data/stopwords_ko.txt: 한국어 개발 블로그 특화 불용어 ~350개 (일반명사·필러·영어 일반어)requirements.txt: kiwipiepy, scikit-learn 추가Test plan
pytest tests/test_trend_tokenizer.py— 5개 (POS 필터, 숫자 제거, 불용어, 빈 입력, 공백 조인)pytest tests/test_trend_tfidf.py— 5개 (top_n, 정렬, 빈 입력, cold start fallback, 튜플 형식)pytest -q전체 382개 통과 확인ruff check . && black --check .통과🤖 Generated with Claude Code