@inproceedings{sen_2006_voc,
	title = {tagging, communities, vocabulary, evolution},
	address = {New York, NY, USA},
	author = {Shilad Sen and Shyong K. Lam and Al Mamunur Rashid and Dan Cosley and Dan Frankowski and Jeremy Osterhouse and F. Maxwell Harper and John Riedl},
	booktitle = {CSCW '06: Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work},
	pages = {181--190},
	publisher = {ACM},
	url = {http://www-users.cs.umn.edu/~cosley/research/papers/sen-cscw2006.pdf},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/2582641c05e7a0b9396945a951822c83f/enterldestodes},
	description = {tagging, communities, vocabulary, evolution},
	abstract = {A tagging community's vocabulary of tags forms the basis for social navigation and shared expression.We present a user-centric model of vocabulary evolution in tagging communities based on community influence and personal tendency. We evaluate our model in an emergent tagging system by introducing tagging features into the MovieLens recommender system.We explore four tag selection algorithms for displaying tags applied by other community members. We analyze the algorithms 'effect on vocabulary evolution, tag utility, tag adoption, and user satisfaction.},
	location = {Banff, Alberta, Canada}, isbn = {1-59593-249-6}, doi = {http://doi.acm.org/10.1145/1180875.1180904},
	keywords = {folksonomy p:diss s:toread }
}

@inproceedings{Sen_et_al_2006,
	title = {tagging, communities, vocabulary, evolution},
	address = {New York, NY, USA},
	author = {Shilad Sen and Shyong K. Lam and Al Mamunur Rashid and Dan Cosley and Dan Frankowski and Jeremy Osterhouse and F. Maxwell Harper and John Riedl},
	booktitle = {CSCW '06: Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work},
	pages = {181--190},
	publisher = {ACM Press},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/2582641c05e7a0b9396945a951822c83f/vzach},
	description = {tagging, communities, vocabulary, evolution},
	abstract = {A tagging community�s vocabulary of tags forms the basis
for social navigation and shared expression. We present a
user-centric model of vocabulary evolution in tagging communities
based on community influence and personal tendency.
We evaluate our model in an emergent tagging system
by introducing tagging features into the MovieLens recommender
system. We explore four tag selection algorithms
for displaying tags applied by other community members.
We analyze the algorithms� effect on vocabulary evolution,
tag utility, tag adoption, and user satisfaction.},
	location = {Banff, Alberta, Canada}, isbn = {1-59593-249-6}, doi = {http://doi.acm.org/10.1145/1180875.1180904},
	keywords = {analysis communities evolution social_software tagging }
}

@inproceedings{sen_2006_voc,
	title = {tagging, communities, vocabulary, evolution},
	address = {New York, NY, USA},
	author = {Shilad Sen and Shyong K. Lam and Al Mamunur Rashid and Dan Cosley and Dan Frankowski and Jeremy Osterhouse and F. Maxwell Harper and John Riedl},
	booktitle = {CSCW '06: Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work},
	pages = {181--190},
	publisher = {ACM},
	url = {http://portal.acm.org/citation.cfm?id=1180875.1180904},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/2582641c05e7a0b9396945a951822c83f/ewomant},
	description = {tagging, communities, vocabulary, evolution},
	abstract = {A tagging community's vocabulary of tags forms the basis for social navigation and shared expression.We present a user-centric model of vocabulary evolution in tagging communities based on community influence and personal tendency. We evaluate our model in an emergent tagging system by introducing tagging features into the MovieLens recommender system.We explore four tag selection algorithms for displaying tags applied by other community members. We analyze the algorithms 'effect on vocabulary evolution, tag utility, tag adoption, and user satisfaction.},
	location = {Banff, Alberta, Canada}, isbn = {1-59593-249-6}, doi = {http://doi.acm.org/10.1145/1180875.1180904},
	keywords = {collaboration community folksonomy motivation }
}

@inproceedings{conf/group/ShamiYCXG07,
	title = {That's what friends are for: facilitating 'who knows what' across group boundaries.},
	author = {N. Sadat Shami and Y. Connie Yuan and Dan Cosley and Ling Xia and Geri Gay},
	booktitle = {GROUP},
	crossref = {conf/group/2007},
	editor = {Tom Gross and Kori Inkpen},
	pages = {379-382},
	publisher = {ACM},
	url = {http://dblp.uni-trier.de/db/conf/group/group2007.html#ShamiYCXG07},
	year = {2007},
	biburl = {http://www.bibsonomy.org/bibtex/25dc2bb00467f10a03e01453042252429/dblp},
	description = {dblp},
	date = {2008-04-09}, ee = {http://doi.acm.org/10.1145/1316624.1316681}, isbn = {978-1-59593-845-9},
	keywords = {dblp }
}

@inproceedings{conf/group/LeshedHCMG07,
	title = {Feedback for guiding reflection on teamwork practices.},
	author = {Gilly Leshed and Jeffrey T. Hancock and Dan Cosley and Poppy L. McLeod and Geri Gay},
	booktitle = {GROUP},
	crossref = {conf/group/2007},
	editor = {Tom Gross and Kori Inkpen},
	pages = {217-220},
	publisher = {ACM},
	url = {http://dblp.uni-trier.de/db/conf/group/group2007.html#LeshedHCMG07},
	year = {2007},
	biburl = {http://www.bibsonomy.org/bibtex/2a3ab3991b9600ab08eac522d4b617d6b/dblp},
	description = {dblp},
	date = {2008-04-09}, ee = {http://doi.acm.org/10.1145/1316624.1316655}, isbn = {978-1-59593-845-9},
	keywords = {dblp }
}

@inproceedings{conf/chi/CosleyLHHBNBG08,
	title = {ArtLinks: fostering social awareness and reflection in museums.},
	author = {Dan Cosley and Joel Lewenstein and Andrew Herman and Jenna Holloway and Jonathan Baxter and Saeko Nomura and Kirsten Boehner and Geri Gay},
	booktitle = {CHI},
	crossref = {conf/chi/2008},
	editor = {Mary Czerwinski and Arnold M. Lund and Desney S. Tan},
	pages = {403-412},
	publisher = {ACM},
	url = {http://dblp.uni-trier.de/db/conf/chi/chi2008.html#CosleyLHHBNBG08},
	year = {2008},
	biburl = {http://www.bibsonomy.org/bibtex/270487325b90cdb29f33de65defe08e67/dblp},
	description = {dblp},
	date = {2008-04-08}, ee = {http://doi.acm.org/10.1145/1357054.1357121}, isbn = {978-1-60558-011-1},
	keywords = {dblp }
}

@inproceedings{1241878,
	title = {PolyLens: a recommender system for groups of users},
	address = {Norwell, MA, USA},
	author = {Mark O'Connor and Dan Cosley and Joseph A. Konstan and John Riedl},
	booktitle = {ECSCW'01: Proceedings of the seventh conference on European Conference on Computer Supported Cooperative Work},
	pages = {199--218},
	publisher = {Kluwer Academic Publishers},
	year = {2001},
	biburl = {http://www.bibsonomy.org/bibtex/2f7f8fa67fc3d2d58aee12b05db04be6f/mediadigits},
	abstract = {We present PolyLens, a new collaborative filtering recommender system designed to recommend items for groups of users, rather than for individuals. A group recommender is more appropriate and useful for domains in which several people participate in a single activity, as is often the case with movies and restaurants. We present an analysis of the primary design issues for group recommenders, including questions about the nature of groups, the rights of group members, social value functions for groups, and interfaces for displaying group recommendations. We then report on our PolyLens prototype and the lessons we learned from usage logs and surveys from a nine-month trial that included 819 users We found that users not only valued group recommendations, but were willing to yield some privacy to get the benefits of group recommendations Users valued an extension to the group recommender system that enabled them to invite non-members to participate, via email},
	location = {Bonn, Germany}, isbn = {0-7923-7162-3},
	keywords = {collaborative filtering recommendation }
}

@article{Frankowski:2006p3728,
	title = {You Are What You Say: Privacy Risks of Public Mentions},
	annote = {60% of commenters of more then 8 films can be found back.

Erasing some is not efficient;
adding comments on popular items.

Scrict rule > wieght > scoring > w/ ratings},
	author = {D Frankowski and D Cosley and S Sen and L Terveen and J Riedl},
	journal = {SIGIR'06},
	url = {http://portal.acm.org/citation.cfm?doid=1148170.1148267},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/2e6fde20d7acaa4161463c082bbf4a2ce/bertil.hatt},
	description = {March 2008},
	abstract = {In today's data-rich networked world, people express many aspects of their lives online. It is common to segregate different aspects in different places: you might write opinionated rants about movies in your blog under a pseudonym while participating in a forum or web site for scholarly discussion of medical ethics under your real name. However, it may be possible to link these separate identities, because the movies, journal articles, or authors you mention are from a sparse relation space whose properties (e.g., many items related to by only a few users) allow re-identification. This re-identification violates people's intentions to separate aspects of their life and can have negative consequences; it also may allow other privacy violations, such as obtaining a stronger identifier like name and address.This paper examines this general problem in a specific setting: re-identification of users from a public web movie forum in a private movie ratings dataset. We present three major results. First, we develop algorithms that can re-identify a large proportion of public users in a sparse relation space. Second, we evaluate whether private dataset owners can protect user privacy by hiding data; we show that this requires extensive and undesirable changes to the dataset, making it impractical. Third, we evaluate two methods for users in a public forum to protect their own privacy, suppression and misdirection. Suppression doesn't work here either. However, we show that a simple misdirection strategy works well: mention a few popular items that you haven't rated.},
	date-added = {2008-02-05 19:07:10 +0100}, pmid = {14583202864089752583related:B2SHYb3xYcoJ}, local-url = {file://localhost/Users/bertilhatt/Documents/Papers/Frankowski/2006/Frankowski%202006%20SIGIR%E2%80%9906.pdf}, uri = {papers://C3B117CD-23C4-4854-9426-AC96AFB113DA/Paper/p3728}, date-modified = {2008-03-12 11:19:09 +0100}, rating = {5},
	keywords = {imported }
}

@inproceedings{1180904,
	title = {tagging, communities, vocabulary, evolution},
	address = {New York, NY, USA},
	author = {Shilad Sen and Shyong K. Lam and Al Mamunur Rashid and Dan Cosley and Dan Frankowski and Jeremy Osterhouse and F. Maxwell Harper and John Riedl},
	booktitle = {CSCW '06: Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work},
	pages = {181--190},
	publisher = {ACM},
	url = {http://portal.acm.org/citation.cfm?id=1180904},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/2582641c05e7a0b9396945a951822c83f/stumme},
	description = {tagging, communities, vocabulary, evolution},
	abstract = {A tagging community's vocabulary of tags forms the basis for social navigation and shared expression.We present a user-centric model of vocabulary evolution in tagging communities based on community influence and personal tendency. We evaluate our model in an emergent tagging system by introducing tagging features into the MovieLens recommender system.We explore four tag selection algorithms for displaying tags applied by other community members. We analyze the algorithms 'effect on vocabulary evolution, tag utility, tag adoption, and user satisfaction.},
	location = {Banff, Alberta, Canada}, isbn = {1-59593-249-6}, doi = {http://doi.acm.org/10.1145/1180875.1180904},
	keywords = {communities community evolution folksonomies folksonomy tagging vocabulary }
}

@inproceedings{1148267,
	title = {You are what you say: privacy risks of public mentions},
	address = {New York, NY, USA},
	author = {Dan Frankowski and Dan Cosley and Shilad Sen and Loren Terveen and John Riedl},
	booktitle = {SIGIR '06: Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval},
	pages = {565--572},
	publisher = {ACM},
	url = {http://portal.acm.org/citation.cfm?doid=1148170.1148267},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/297d07bfe67a320c6f764ca4b361985b3/renew},
	description = {You are what you say},
	abstract = {In today's data-rich networked world, people express many aspects of their lives online. It is common to segregate different aspects in different places: you might write opinionated rants about movies in your blog under a pseudonym while participating in a forum or web site for scholarly discussion of medical ethics under your real name. However, it may be possible to link these separate identities, because the movies, journal articles, or authors you mention are from a sparse relation space whose properties (e.g., many items related to by only a few users) allow re-identification. This re-identification violates people's intentions to separate aspects of their life and can have negative consequences; it also may allow other privacy violations, such as obtaining a stronger identifier like name and address.This paper examines this general problem in a specific setting: re-identification of users from a public web movie forum in a private movie ratings dataset. We present three major results. First, we develop algorithms that can re-identify a large proportion of public users in a sparse relation space. Second, we evaluate whether private dataset owners can protect user privacy by hiding data; we show that this requires extensive and undesirable changes to the dataset, making it impractical. Third, we evaluate two methods for users in a public forum to protect their own privacy, suppression and misdirection. Suppression doesn't work here either. However, we show that a simple misdirection strategy works well: mention a few popular items that you haven't rated.},
	location = {Seattle, Washington, USA}, isbn = {1-59593-369-7}, doi = {http://doi.acm.org/10.1145/1148170.1148267},
	keywords = {nlp privacy }
}