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[論文メモ] Item2Vec: Neural Item Embedding for Collaborative Filtering

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Item2Vec: Neural Item Embedding for Collaborative Filtering

簡単にまとめると

  • word2vecを単語ではなく商品の分散表現を求める手法を提案している。
  • 文章から単語の分散表現を求めるときは、文章の前後の単語との組み合わせを使ったが、商品では文書のような時系列関係がない。
  • そこで時系列関係等を無視して、同時に購入された商品の組み合わせを正例として用いる。
  • アルゴリズムはword2vecとほぼ同じ。
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