title: RACOFI: A Rule-Applying Collaborative Filtering System creator: Lemire, Daniel creator: Boley, Harold subject: Machine Learning subject: Artificial Intelligence description: In this paper we give an overview of the RACOFI (Rule-Applying Collaborative Filtering) multidimensional rating system and its related technologies. This will be exemplified with RACOFI Music, an implemented collaboration agent that assists on-line users in the rating and recommendation of audio (Learning) Objects. It lets users rate contemporary Canadian music in the five dimensions of impression, lyrics, music, originality, and production. The collaborative filtering algorithms STI Pearson, STIN2, and the Per Item Average algorithms are then employed together with RuleML-based rules to recommend music objects that best match user queries. RACOFI has been on-line since August 2003 at http://racofi.elg.ca. . contributor: Ghorbani, Ali contributor: Marsh, Stephen date: 2003 type: Conference Paper type: PeerReviewed format: application/pdf identifier: http://cogprints.org/3166/1/racofi_nrc.pdf identifier: Lemire, Daniel and Boley, Harold (2003) RACOFI: A Rule-Applying Collaborative Filtering System. [Conference Paper] (In Press) relation: http://cogprints.org/3166/