(1) Social systems by their definition encourage interaction between users and both online content and other users, thus generating new sources of knowledge for recommender systems. Web 2.0 users explicitly provide personal information and implicitly express preferences through their interactions with others and the system (e.g. commenting, friending, rating, etc.). These various new sources of knowledge can be leveraged to improve recommendation techniques and develop new strategies which focus on social recommendation.
(2) New application areas for recommender systems emerge with the popularity of the Social Web. Recommenders cannot only be used to sort and filter Web 2.0 and social network information, they can also support users in the information sharing process, e.g., by recommending suitable tags during folksonomy development.
(3) Recommender technology can assist Social Web systems through increasing adoption and participation and sustaining membership. Through targeted and timely intervention which stimulates traffic and interaction, recommender technology can play its role in sustaining the success of the Social Web.
(4) The Social Web also presents new challenges for recommender systems, such as the complicated nature of human-to-human interaction which comes into play when recommending people and can require more interactive and richer recommender systems user interfaces.
The technical papers appearing in these proceedings aim to explore and understand challenges and new opportunities for recommender systems in the Social Web and were selected in a formal review process by an international program committee.
Overall, we received 13 paper submissions from 12 different countries, out of which 7 long papers and 1 short paper were selected for presentation and inclusion in the proceedings. The submitted papers addressed a variety of topics related to Social Web recommender systems from the use of microblogging data for personalization over new tag recommendation approaches to social media-based personalization of news.}, address = {New York, NY, USA}, author = {Mobasher, Bamshad and Jannach, Dietmar and Geyer, Werner and Hotho, Andreas}, interhash = {4a591caf39ca41da55a94a37c8c47074}, intrahash = {354947709c23c90b18dae862c46b2761}, isbn = {978-1-4503-1638-5}, location = {Dublin, Ireland}, note = 609126, publisher = {ACM}, title = {RSWeb '12: Proceedings of the 4th ACM RecSys workshop on Recommender systems and the social web}, year = 2012 } @inproceedings{Freyne:2011:WRS:2043932.2044014, abstract = {The exponential growth of the social web poses challenges and new opportunities for recommender systems. The social web has turned information consumers into active contributors creating massive amounts of information. Finding relevant and interesting content at the right time and in the right context is challenging for existing recommender approaches. At the same time, social systems by their definition encourage interaction between users and both online content and other users, thus generating new sources of knowledge for recommender systems. Web 2.0 users explicitly provide personal information and implicitly express preferences through their interactions with others and the system (e.g. commenting, friending, rating, etc.). These various new sources of knowledge can be leveraged to improve recommendation techniques and develop new strategies which focus on social recommendation. The Social Web provides huge opportunities for recommender technology and in turn recommender technologies can play a part in fuelling the success of the Social Web phenomenon.
The goal of this one day workshop was to bring together researchers and practitioners to explore, discuss, and understand challenges and new opportunities for Recommender Systems and the Social Web. The workshop consisted both of technical sessions, in which selected participants presented their results or ongoing research, as well as informal breakout sessions on more focused topics.
Papers discussing various aspects of recommender system in the Social Web were submitted and selected for presentation and discussion in the workshop in a formal reviewing process: Case studies and novel fielded social recommender applications; Economy of community-based systems: Using recommenders to encourage users to contribute and sustain participation.; Social network and folksonomy development: Recommending friends, tags, bookmarks, blogs, music, communities etc.; Recommender systems mash-ups, Web 2.0 user interfaces, rich media recommender systems; Collaborative knowledge authoring, collective intelligence; Recommender applications involving users or groups directly in the recommendation process; Exploiting folksonomies, social network information, interaction, user context and communities or groups for recommendations; Trust and reputation aware social recommendations; Semantic Web recommender systems, use of ontologies or microformats; Empirical evaluation of social recommender techniques, success and failure measures
Full workshop details are available at http://www.dcs.warwick.ac.uk/~ssanand/RSWeb11/index.htm}, acmid = {2044014}, address = {New York, NY, USA}, author = {Freyne, Jill and Anand, Sarabjot Singh and Guy, Ido and Hotho, Andreas}, booktitle = {Proceedings of the fifth ACM conference on Recommender systems}, doi = {10.1145/2043932.2044014}, interhash = {6171f01a8f8cd063ec257cb4809801a6}, intrahash = {11fe6dd3da33f0aa0a40c998e5193ab8}, isbn = {978-1-4503-0683-6}, location = {Chicago, Illinois, USA}, numpages = {2}, pages = {383--384}, publisher = {ACM}, series = {RecSys '11}, title = {3rd workshop on recommender systems and the social web}, url = {http://doi.acm.org/10.1145/2043932.2044014}, year = 2011 } @proceedings{proc_msm2011@eswc2011, booktitle = {Making Sense of Microposts {(\#MSM2011)}}, editor = {Rowe, Matthew and Stankovic, Milan and Dadzie, Aba-Sah and Hardey, Mariann}, interhash = {1590ada2c2ea27847ffd872ba4d8d07d}, intrahash = {620237891cabce63e8387ece58243f98}, month = may, title = {Proceedings, 1st Workshop on Making Sense of Microposts {(\#MSM2011)}: Big things come in small packages, Heraklion, Crete, Greece, 30th May 2011}, url = {http://ceur-ws.org/Vol-718}, year = 2011 } @book{AH:10, address = {Barcelona, Spain}, editor = {Atzmueller, Martin and Hotho, Andreas}, interhash = {7260d64afa0eadf785be450646aec5c4}, intrahash = {684691da3230424a4b6aef804cd27579}, publisher = {ECML/PKDD 2010}, title = {{Proceedings of the 2010 Workshop on Mining Ubiquitous and Social Environments (MUSE 2010)}}, year = 2010 } @inproceedings{benz2009characterizing, address = {Bled, Slovenia}, author = {Benz, Dominik and Krause, Beate and Kumar, G. Praveen and Hotho, Andreas and Stumme, Gerd}, booktitle = {Proceedings of the 1st Workshop on Explorative Analytics of Information Networks (EIN2009)}, interhash = {de5e58b26200e44112d9791f39e7523d}, intrahash = {b697a98a7340585594455ee2e81d238a}, month = {September}, title = {Characterizing Semantic Relatedness of Search Query Terms}, year = 2009 } @inproceedings{loreto2009tagging, address = {New York, NY, USA}, author = {Loreto, Vittorio and Capocci, Andrea}, booktitle = {HT '09: Proceedings of the Twentieth ACM Conference on Hypertext and Hypermedia}, interhash = {6f2ba9f38788a3b544fb5620813329a0}, intrahash = {1ec9c6b266af3bd0ce0c67f6f38983dd}, month = {July}, paperid = {w4tag}, publisher = {ACM}, session = {Workshop}, title = {Tagging Dynamics in Online Communities}, year = 2009 } @book{berendt2008challenge, editor = {Berendt, Bettina and Glance, Natalie and Hotho, Andreas}, interhash = {ab9a3d6f27b2bc93cb8137a0f7988271}, intrahash = {50f6cd75018d7ee98f49c5ab4ef0faaf}, publisher = {Workshop at 18th Europ. Conf. on Machine Learning (ECML'08) / 11th Europ. Conf. on Principles and Practice of Knowledge Discovery in Databases (PKDD'08)}, title = {Wikis, Blogs, Bookmarking Tools - Mining the Web 2.0 Workshop}, url = {http://www.kde.cs.uni-kassel.de/ws/wbbtmine2008/pdf/all_wbbtmine2008.pdf}, year = 2008 } @book{hotho2008challenge, editor = {Hotho, Andreas and Benz, Dominik and Jäschke, Robert and Krause, Beate}, interhash = {fbcdc431904808bb868f09734b91af87}, intrahash = {1d5d5ef0bb222cb2f3adef4d6b06f1ea}, publisher = {Workshop at 18th Europ. Conf. on Machine Learning (ECML'08) / 11th Europ. Conf. on Principles and Practice of Knowledge Discovery in Databases (PKDD'08)}, title = {ECML PKDD Discovery Challenge 2008 (RSDC'08)}, url = {http://www.kde.cs.uni-kassel.de/ws/rsdc08/pdf/all_rsdc_v2.pdf}, year = 2008 } @proceedings{semweb2007esoe, booktitle = {ESOE}, date = {2008-06-02}, editor = {Chen, Liming and Cudré-Mauroux, Philippe and Haase, Peter and Hotho, Andreas and Ong, Ernie}, interhash = {e4eaecb727767ab719953ec60a16fba3}, intrahash = {6a076256fc0fbf774cd5e67addc13641}, publisher = {CEUR-WS.org}, series = {CEUR Workshop Proceedings}, title = {Proceedings of the First International Workshop on Emergent Semantics and Ontology Evolution, ESOE 2007, co-located with ISWC 2007 + ASWC 2007, Busan, Korea, November 12th, 2007}, url = {http://dblp.uni-trier.de/db/conf/semweb/esoe2007.html}, volume = 292, year = 2007 } @proceedings{msw2004, editor = {Hotho, Andreas and Sure, York and Getoor, Lise}, interhash = {0e2afdbc572d2f6c19c60559919931c1}, intrahash = {0fbd582960b0f6917d82bd1825c3d167}, month = AUG, note = {located at the 10th International ACM SIGKDD Conference on Knowledge Discovery and Data Mining KDD 2004, 22nd August 2004, Seattle, WA, USA}, title = {International Workshop on Mining for and from the Semantic Web (MSW2004)}, url = {http://www.kde.cs.uni-kassel.de/hotho/pub/2004/msw2004_proceedings.pdf}, year = 2004 } @proceedings{Berendt03EWMFWS, address = {Cavtat/Dubrovnik, Croatia}, editor = {Berendt, Bettina and Hotho, Andreas and Mladenic, Dunja and van Someren, Maarten and Spiliopoulou, Myra and Stumme, Gerd}, interhash = {1afa094a3f1770fa727bb48153f74e01}, intrahash = {5df1f4f9be3b6424076846d5eb1d2542}, month = SEP, publisher = {Workshop at the 14th Europ. Conf. on Machine Learning (ECML'03) / 7th Europ. Conf. on Principles and Practice of Knowledge Discovery in Databases (PKDD'03)}, title = {Proceedings of the 1st European Web Mining Forum (EWMF 2003)}, year = 2003 } @proceedings{berendt2006webmining, editor = {Berendt, B. and Hotho, A. and Mladenic, D. and Semeraro, G.}, interhash = {5e4e5a7285303d11a7f967495fe97059}, intrahash = {ecab780995c630270857b610c7c54e67}, title = {Workshop on Web Mining 2006 (WebMine)}, url = {http://www.kde.cs.uni-kassel.de/ws/webmine2006/pdf/WebMine2006.pdf}, year = 2006 } @inproceedings{schmitz2007network, address = {Banff}, author = {Schmitz, Christoph and Grahl, Miranda and Hotho, Andreas and Stumme, Gerd and Catutto, Ciro and Baldassarri, Andrea and Loreto, Vittorio and Servedio, Vito D. P.}, booktitle = {Proc. WWW2007 Workshop ``Tagging and Metadata for Social Information Organization''}, day = 8, interhash = {20bd468c1c9b71206ac6f8b67ed676d6}, intrahash = {23a0a0cd67ab0014e0346527e986caeb}, month = May, title = {Network Properties of Folksonomies}, year = 2007 } @proceedings{DBLP:conf/kdd/1999web, bibsource = {DBLP, http://dblp.uni-trier.de}, booktitle = {WEBKDD}, editor = {Masand, Brij M. and Spiliopoulou, Myra}, interhash = {29a69416c66bd604c4599009915dc0b0}, intrahash = {18a9697e8ca04f637487e79b6be9cc83}, isbn = {3-540-67818-2}, publisher = {Springer}, series = {Lecture Notes in Computer Science}, title = {Web Usage Analysis and User Profiling, International WEBKDD'99 Workshop, San Diego, California, USA, August 15, 1999, Revised Papers}, volume = 1836, year = 2000 } @article{DBLP:journals/sigkdd/HothoSG04, author = {Hotho, Andreas and Sure, York and Getoor, Lise}, bibsource = {DBLP, http://dblp.uni-trier.de}, ee = {http://doi.acm.org/10.1145/1046482}, interhash = {02a216da151c9bd84ec4c131e1a43f89}, intrahash = {1aae46b03f32f0d69caa735abe81825e}, journal = {SIGKDD Explorations}, number = 2, pages = {142-143}, title = {A workshop report: mining for and from the Semantic Web at KDD 2004.}, volume = 6, year = 2004 }