Improved recommendation of photo-taking locations using virtual ratings

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dc.contributor.authorKaya, Mesut
dc.contributor.authorBridge, Derek G.
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2016-11-30T13:28:45Z
dc.date.available2016-11-30T13:28:45Z
dc.date.issued2016
dc.date.updated2016-11-30T13:18:02Z
dc.description.abstractWe consider the task of collaborative recommendation of photo-taking locations. We use datasets of geotagged photos. We map their locations to a location grid using a geohashing algorithm, resulting in a user x location implicit feedback matrix. Our improvements relative to previous work are twofold. First, we create virtual ratings by spreading users' preferences to neighbouring grid locations. This makes the assumption that users have some preference for locations close to the ones in which they take their photos. These virtual ratings help overcome the discrete nature of the geohashing. Second, we normalize the implicit frequency-based ratings to a 1-5 scale using a method that has been found to be useful in music recommendation algorithms. We demonstrate the advantages of our approach with new experiments that show large increases in hit rate and related metrics.en
dc.description.sponsorshipScience Foundation Ireland (SFI Grant Number SFI/12/RC/2289)en
dc.description.statusPeer revieweden
dc.description.urihttp://www.ec.tuwien.ac.at/rectour2016/en
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKaya, M. and Bridge, D. (2016) 'Improved recommendation of photo-taking locations using virtual ratings' (from the Proceedings of the Workshop on Recommenders in Tourism co-located with 10th ACM Conference on Recommender Systems (RecSys 2016), Boston, MA, USA, September 5), CEUR Workshop Proceedings, 1685.en
dc.identifier.endpage7en
dc.identifier.issn1613-0073
dc.identifier.journaltitleCEUR Workshop Proceedingsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/3329
dc.language.isoenen
dc.publisherSun SITE Central Europe / RWTH Aachen Universityen
dc.relation.ispartofRecTour 2016
dc.relation.urihttp://ceur-ws.org/Vol-1685/
dc.rights© 2016, Mesut Kaya and Derek Bridge.en
dc.rights.urihttp://ceur-ws.org/
dc.subjectGeohashingen
dc.subjectGeotagged photosen
dc.subjectAlgorithmen
dc.subjectVirtual ratingsen
dc.titleImproved recommendation of photo-taking locations using virtual ratingsen
dc.typeConference itemen
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