creators_name: Lemire, Daniel creators_name: Boley, Harold editors_name: Ghorbani, Ali editors_name: Marsh, Stephen type: confpaper datestamp: 2003-09-19 lastmod: 2011-03-11 08:55:21 metadata_visibility: show title: RACOFI: A Rule-Applying Collaborative Filtering System ispublished: inpress subjects: comp-sci-mach-learn subjects: comp-sci-art-intel full_text_status: public abstract: 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. . date: 2003 date_type: published refereed: TRUE citation: Lemire, Daniel and Boley, Harold (2003) RACOFI: A Rule-Applying Collaborative Filtering System. [Conference Paper] (In Press) document_url: http://cogprints.org/3166/1/racofi_nrc.pdf