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README.md
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---
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license: apache-2.0
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tags: [lightgbm, lambdamart, ranking, match-input-v2]
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---
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# MATCH 모듈② v2 LambdaMART 랭커
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match-input-v2 15특성 친구추천 랭커(합성 잠재라벨 + AI허브 실문장 콘텐츠 임베딩).
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- seed: 42, n_users: 10000, train/test pairs: 68193/16741
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- feature columns: ['f_effective_cosine', 'f_profile_cosine', 'f_profile_l2', 'f_authored_cosine', 'f_authored_available', 'f_liked_cosine', 'f_liked_available', 'f_liked_authored_cosine', 'f_tag_overlap', 'f_tag_jaccard', 'f_common_friend_count', 'f_age_diff', 'f_age_available', 'f_age_band_match', 'f_ui_mode_match']
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- metrics: {"v2_full": {"ndcg@5": 0.7721639322500758, "ndcg@10": 0.8196806119527938, "n_features": 15}, "v2_no_content": {"ndcg@5": 0.7646390549608202, "ndcg@10": 0.8115972042160688, "n_features": 10}, "legacy_embedding": {"ndcg@5": 0.39210847212656913, "ndcg@10": 0.4863242966922078, "n_features": 2}}
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서빙은 이 저장소의 특정 revision(commit)을 고정해 사용한다.
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