Comments (1)
・次のモジュールにより構成される。Preprocess, Retrieval, Information expansion, Sentence choosing and ranking
・Preprocess: GPGファイルをTXTファイルに変換。indexをはる。
・Retrieval: 検索エンジンとしてLemur searchを使っている。クエリ拡張と単語の重み付けができるため。(DocumentをRetrievalする)
・Information Expansion: 検索結果を拡張するためにK-meansを用いる。
・Sentence choosing and ranking: クラスタリング後に異なるクラスタの中心から要約を構築する。
time factorとsimilarity factorによってsentenceがランク付けされる。(詳細なし)
・Retrievalにおいては主にTF-IDFとBM25を用いている。
・traditionalなretrieval methodだけではperform wellではないので、Information Expansionをする。k-meansをすることで、異なるイベントのトピックに基づいてクラスタを得ることができる。クラスタごとの中心のドキュメントのtop sentencesをとってきて、要約とする。最終的にイベントごとに50 sentencesを選択する。
・生成したSequential Update Summarizationからvalueを抜いてきて、Value Trackingをする。
・Updateの部分をどのように実装しているのか?
from paper_notes.
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from paper_notes.