Slides about introducing a paper "Angeli et al. Combining Distant and Partial Supervision for Relation Extraction" presented at EMNLP reading group at Tokyo Metropolitan University, Japan.
Combining Distant and Partial Supervision for Relation Extraction (Angeli et al.)
1. EMNLP読み会2014
Combining Distant and Partial Supervision for
Relation Extraction (Angeli et al.)
※このスライド中の図はこの論文及びプレゼンスライド中のものです
Komachi Lab
12/03
B4 宮崎亮輔
2. Komachi Lab
Relation Extraction
2
これ
入力: [Barack Obama] was born in [Hawaii]
出力: Born in
Relation Extraction用語!
entity: 対象とする名詞!
mention: 名詞がマークされた入力!
pair: entityのペア
5. Komachi Lab
Distant Supervision
✤ 知識ベースに大量に関係のタプルを持っている(e1, y, e2)!
- (Obama, Born in, Hawaii), (Obama, Live in , Hawaii), …!
✤ e1, e2を含むmentionの関係はyだとしてトレーニングする!
- Obama was born in Hawaii → Born in !
- Obama was born in Hawaii → Live in!
- Obama is living in Hawaii → Born in!
- Obama is living in Hawaii → Live in!
✤ 間違いも含むけど、関係を表すリッチな素性ができる!
✤ 教師データを作るコストがない、大量のデータを使える
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