"SLIM: Sparse Linear Methods for Top-N Recommender Systems"ã‚’èªã‚“ã "SLIM: Sparse Linear Methods for Top-N Recommender Systems"ã‚’èªã‚“ã Matrix Factorizationよりも高ã„精度ãŒå‡ºã‚‹ã¨ã„ã†è©±ã‚’よãèžã Sparse Linear Method (SLIM) ã‚’æ案ã—ãŸè«–文をèªã‚“ã 。 Xia Ning and George Karypis. SLIM: Sparse Linear Methods for Top-N Recommender Systems. ICDM 2011. æ¦‚è¦ Top-N推薦を高速ã«è¡Œã† Sparse Linear Method (SLIM) ã‚’æ案ã™ã‚‹ã€‚ ユーザ-アイテム行列 $A \in \mathbb{R}^{\textrm{\#user } \times \textrm{ \#item}}$ ã®æœªè¦³æ¸¬å€¤ã‚’ $\tilde{A} = AW$ ã®ã‚ˆã†ã«è£œå®Œã™
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