Article

Evaluating peer-to-peer recommender systems that exploit spontaneous affinities

Authors:

Giancarlo Ruffo,

Rossano SchifanellaAuthors Info & Claims

SAC '07: Proceedings of the 2007 ACM symposium on Applied computing

Pages 1574 - 1578

https://doi.org/10.1145/1244002.1244338

Published: 11 March 2007 Publication History

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Abstract

The validation of a recommender system is always a quite hazardous task, because of the difficulty of modeling the tastes of a given user. Novel (decentralized) recommender systems are proposed and evaluated by way of well known logs of user profiles and buddy tables, that contain lists of items with feedback ratings assigned by a given set of users. These information are cross linked, and the precision of the recommendation is compared with other well known (centralized) systems. This evaluation approach cannot be applied in the actual peer-to-peer domain: it is difficult, if not impossible, to build and maintain user profiles, and users are not required to give feedbacks to a data collector entity. Moreover, objects are poorly or not structured, and meta-information, when present, cannot be trusted because of fake files and incomplete item descriptions.

In this paper, we present an evaluation process based on a 10-fold cross validation task, that we applied to estimate accuracy of the suggestions of a P2P recommender system recently proposed in [2]. The complexity of the evaluation of this peculiar recommender is increased because of "spontaneous affinities" between users that are used instead of classical knowledge representation based strategies.

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Cited By

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Vera-Del-Campo JPegueroles JHernáNdez-Serrano JSoriano M(2019)Design of a P2P content recommendation system using affinity networksComputer Communications10.1016/j.comcom.2012.07.01836:1(90-104)Online publication date: 5-Jan-2019
https://dl.acm.org/doi/10.1016/j.comcom.2012.07.018
Pagallo U(2010)A new “Ring of Gyges” and the meaning of invisibility in the information revolutionJournal of Information, Communication and Ethics in Society10.1108/147799610110933548:4(364-376)Online publication date: 9-Nov-2010
https://doi.org/10.1108/14779961011093354
Ruffo GSchifanella R(2009)A peer-to-peer recommender system based on spontaneous affinitiesACM Transactions on Internet Technology10.1145/1462159.14621639:1(1-34)Online publication date: 23-Feb-2009
https://dl.acm.org/doi/10.1145/1462159.1462163
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Index Terms

Evaluating peer-to-peer recommender systems that exploit spontaneous affinities
1. Information systems
  1. Information retrieval
    1. Retrieval tasks and goals
      1. Document filtering
      2. Information extraction
2. Software and its engineering
  1. Software organization and properties
    1. Software system structures
      1. Distributed systems organizing principles
        Organizing principles for web applications

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Information & Contributors

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Published In

SAC '07: Proceedings of the 2007 ACM symposium on Applied computing

March 2007

1688 pages

ISBN:1595934804

DOI:10.1145/1244002

Conference Chairs:
Yookun Cho
Seoul National University, Seoul, Korea
,
Roger L. Wainwright
University of Tulsa, Tulsa, Oklahoma
,
Hisham M. Haddad
Kennesaw State University, Kennesaw, Georgia
,
Sung Y. Shin
South Dakota State University, Brookings, South Dakota
,
Program Chair:
Yong Wan Koo
The University of Suwon, Gyeongggi-do, Korea

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 11 March 2007

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March 11 - 15, 2007

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Cited By

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Vera-Del-Campo JPegueroles JHernáNdez-Serrano JSoriano M(2019)Design of a P2P content recommendation system using affinity networksComputer Communications10.1016/j.comcom.2012.07.01836:1(90-104)Online publication date: 5-Jan-2019
https://dl.acm.org/doi/10.1016/j.comcom.2012.07.018
Pagallo U(2010)A new “Ring of Gyges” and the meaning of invisibility in the information revolutionJournal of Information, Communication and Ethics in Society10.1108/147799610110933548:4(364-376)Online publication date: 9-Nov-2010
https://doi.org/10.1108/14779961011093354
Ruffo GSchifanella R(2009)A peer-to-peer recommender system based on spontaneous affinitiesACM Transactions on Internet Technology10.1145/1462159.14621639:1(1-34)Online publication date: 23-Feb-2009
https://dl.acm.org/doi/10.1145/1462159.1462163
Pussep KKaune SFlick JSteinmetz R(2009)A Peer-to-Peer Recommender System with Privacy Constraints2009 International Conference on Complex, Intelligent and Software Intensive Systems10.1109/CISIS.2009.32(409-414)Online publication date: Mar-2009
https://doi.org/10.1109/CISIS.2009.32
Schifanella RPanisson AGena CRuffo GPu PBridge DMobasher BRicci F(2008)MobHinterProceedings of the 2008 ACM conference on Recommender systems10.1145/1454008.1454014(27-34)Online publication date: 23-Oct-2008
https://dl.acm.org/doi/10.1145/1454008.1454014
Pagallo URuffo GGardner AWinkels R(2007)P2P systems in legal networksProceedings of the 11th international conference on Artificial intelligence and law10.1145/1276318.1276374(287-288)Online publication date: 4-Jun-2007
https://dl.acm.org/doi/10.1145/1276318.1276374

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