@article{cite:8,
  author = {R. Liouville and G. Bernoulli},
  title = {{On the Positivity of Conditionally Closed, Right-Simply Contravariant Scalars}},
  journal = {{J}ournal of Numerical Geometry},
  month = {aug},
  year = {1993},
  volume = {6},
  pages = {152--191},
}

@book{o2009web,
  title = {{What is web 2.0}},
  author = {o'Reilly, Tim},
  year = {2009},
  publisher = {O'Reilly Media, Inc.},
}


@article{Resnick_1997,
  title = {{Recommender systems}},
  volume = {40},
  issn = {0001-0782},
  url = {http://dx.doi.org/10.1145/245108.245121},
  doi = {10.1145/245108.245121},
  number = {3},
  journal = {Communications of the ACM},
  publisher = {Association for Computing Machinery (ACM)},
  author = {Resnick, Paul and Varian, Hal R.},
  year = {1997},
  month = {Mar},
  pages = {56–58},
}


@article{Guy_2011,
  title = {{Social recommender systems}},
  isbn = {http://id.crossref.org/isbn/9781450306379},
  url = {http://dx.doi.org/10.1145/1963192.1963312},
  doi = {10.1145/1963192.1963312},
  journal = {Proceedings of the 20th international conference companion on World wide web - WWW  ’11},
  publisher = {ACM Press},
  author = {Guy, Ido and Carmel, David},
  pages = {283-–284},
  year = {2011},
}


@inproceedings{Guy:2014:TSR:2567948.2577269,
  author = {Guy, Ido},
  title = {{Tutorial on Social Recommender Systems}},
  booktitle = {Proceedings of the Companion Publication of the 23rd International Conference on World Wide Web Companion},
  series = {WWW Companion '14},
  year = {2014},
  isbn = {978-1-4503-2745-9},
  location = {Seoul, Korea},
  pages = {195--196},
  numpages = {2},
  url = {http://dx.doi.org/10.1145/2567948.2577269},
  doi = {10.1145/2567948.2577269},
  acmid = {2577269},
  publisher = {International World Wide Web Conferences Steering Committee},
  address = {Republic and Canton of Geneva, Switzerland},
  keywords = {recommender systems, social media, social networks, social recommender systems, social web, web 2.0},
}


@section{2488083,
  note = {Session Chair-Guy, Ido and Session Chair-Chen, Li and Session Chair-Zhou, Michelle X.},
  title = {{SRS'13 Workshop}},
  proceeding = {Proceedings of the 22nd international conference on World Wide Web companion},
  isbn = {978-1-4503-2038-2},
  year = {{2013}},
}


@inproceedings{Guy:2010:WSR:1719970.1720059,
  author = {Guy, Ido and Chen, Li and Zhou, Michelle X.},
  title = {{Workshop on Social Recommender Systems}},
  booktitle = {Proceedings of the 15th International Conference on Intelligent User Interfaces},
  series = {IUI '10},
  year = {2010},
  isbn = {978-1-60558-515-4},
  location = {Hong Kong, China},
  pages = {433--434},
  numpages = {2},
  url = {http://doi.acm.org/10.1145/1719970.1720059},
  doi = {10.1145/1719970.1720059},
  acmid = {1720059},
  publisher = {ACM},
  address = {New York, NY, USA},
  keywords = {recommender systems, social media, social web, web 2.0},
}


@article{Mobasher_2013,
  title = {{The fifth ACM RecSys workshop on recommender systems and the social web}},
  isbn = {http://id.crossref.org/isbn/9781450324090},
  url = {http://dx.doi.org/10.1145/2507157.2508001},
  doi = {10.1145/2507157.2508001},
  journal = {Proceedings of the 7th ACM conference on Recommender systems - RecSys  ’13},
  publisher = {ACM Press},
  author = {Mobasher, Bamshad and Jannach, Dietmar and Geyer, Werner and Freyne, Jill and Hotho, Andreas and Anand, Sarabjot Singh and Guy, Ido},
  year = {2013},
}


@book{Ricci:2010:RSH:1941884,
  author = {Ricci, Francesco and Rokach, Lior and Shapira, Bracha and Kantor, Paul B.},
  title = {{Recommender Systems Handbook}},
  year = {2010},
  isbn = {0387858199, 9780387858197},
  edition = {1st},
  publisher = {Springer-Verlag New York, Inc.},
  address = {New York, NY, USA},
}


@book{Jannach:2010:RSI:1941904,
  author = {Jannach, Dietmar and Zanker, Markus and Felfernig, Alexander and Friedrich, Gerhard},
  title = {{Recommender Systems: An Introduction}},
  year = {2010},
  isbn = {0521493366, 9780521493369},
  edition = {1st},
  publisher = {Cambridge University Press},
  address = {New York, NY, USA},
}


@article{tang2013social,
  title = {{Social recommendation: a review}},
  author = {Tang, Jiliang and Hu, Xia and Liu, Huan},
  journal = {Social Network Analysis and Mining},
  volume = {3},
  number = {4},
  pages = {1113--1133},
  year = {2013},
  publisher = {Springer},
}


@book{Arias:2012:RSS:2222726,
  author = {Arias, Jos J. Pazos and Vilas, Ana Fernndez and Redondo, Rebeca P. Daz},
  title = {{Recommender Systems for the Social Web}},
  year = {2012},
  isbn = {3642256937, 9783642256936},
  edition = {1st},
  publisher = {Springer Publishing Company, Incorporated},
}


@article{Davidson_2010,
  title = {{The YouTube video recommendation system}},
  isbn = {http://id.crossref.org/isbn/9781605589060},
  url = {http://dx.doi.org/10.1145/1864708.1864770},
  doi = {10.1145/1864708.1864770},
  journal = {Proceedings of the fourth ACM conference on Recommender systems - RecSys  ’10},
  publisher = {ACM Press},
  author = {Davidson, James and Livingston, Blake and Sampath, Dasarathi and Liebald, Benjamin and Liu, Junning and Nandy, Palash and Van Vleet, Taylor and Gargi, Ullas and Gupta, Sujoy and He, Yu and et al.},
  pages = {293--296},
  year = {2010},
}


@article{arguellodocument,
  title = {{Document Representation and Query Expansion Models for Blog Recommendation}},
  author = {Arguello, Jaime and Elsas, Jonathan L and Callan, Jamie and Carbonell, Jaime G},
  journal = {Proceedings of the second AAAI conference on Weblogs and Social Media - ICWSM  ’08},
  year = {2008},
}


@article{lerman2007social,
  title = {{Social Networks and Social Information Filtering on Digg}},
  author = {Lerman, Kristina},
  journal = {Proceedings of the first AAAI conference on Weblogs and Social Media - ICWSM  ’07},
  year = {2007},
}


@article{Liu_2010,
  title = {{Personalized news recommendation based on click behavior}},
  isbn = {http://id.crossref.org/isbn/9781605585154},
  url = {http://dx.doi.org/10.1145/1719970.1719976},
  doi = {10.1145/1719970.1719976},
  journal = {Proceedings of the 15th international conference on Intelligent user interfaces - IUI  ’10},
  publisher = {ACM Press},
  author = {Liu, Jiahui and Dolan, Peter and Pedersen, Elin Rønby},
  pages = {31--40},
  year = {2010},
}


@inproceedings{Szpektor:2013:REP:2488388.2488497,
  author = {Szpektor, Idan and Maarek, Yoelle and Pelleg, Dan},
  title = {{When Relevance is Not Enough: Promoting Diversity and Freshness in Personalized Question Recommendation}},
  booktitle = {Proceedings of the 22Nd International Conference on World Wide Web},
  series = {WWW '13},
  year = {2013},
  isbn = {978-1-4503-2035-1},
  location = {Rio de Janeiro, Brazil},
  pages = {1249--1260},
  numpages = {12},
  url = {http://dl.acm.org/citation.cfm?id=2488388.2488497},
  acmid = {2488497},
  publisher = {International World Wide Web Conferences Steering Committee},
  address = {Republic and Canton of Geneva, Switzerland},
  keywords = {community question answering, recommender systems, user models},
}


@article{ellison2007social,
  title = {{Social network sites: Definition, history, and scholarship.}},
  author = {Boyd, Danah M and Ellison, Nicole B},
  journal = {Journal of Computer-Mediated Communication},
  year = {2007},
  publisher = {Wiley-Blackwell Publishing Ltd.},
}


@inproceedings{sinha2001comparing,
  title = {{Comparing Recommendations Made by Online Systems and Friends.}},
  author = {Sinha, Rashmi R and Swearingen, Kirsten},
  booktitle = {DELOS workshop: personalisation and recommender systems in digital libraries},
  volume = {106},
  year = {2001},
}


@book{golbeck2006generating,
  title = {{Generating predictive movie recommendations from trust in social networks}},
  author = {Golbeck, Jennifer},
  year = {2006},
  publisher = {Springer},
}


@article{Groh_2007,
  title = {{Recommendations in taste related domains}},
  isbn = {http://id.crossref.org/isbn/9781595938459},
  url = {http://dx.doi.org/10.1145/1316624.1316643},
  doi = {10.1145/1316624.1316643},
  journal = {Proceedings of the 2007 international ACM conference on Conference on supporting group work - GROUP  ’07},
  publisher = {ACM Press},
  author = {Groh, Georg and Ehmig, Christian},
  pages = {127--136},
  year = {2007},
}

@inproceedings{Guy_2009,
 author = {Guy, Ido and Ronen, Inbal and Wilcox, Eric},
 title = {Do You Know?: Recommending People to Invite into Your Social Network},
 booktitle = {Proceedings of the 14th International Conference on Intelligent User Interfaces},
 series = {IUI '09},
 year = {2009},
 isbn = {978-1-60558-168-2},
 location = {Sanibel Island, Florida, USA},
 pages = {77--86},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/1502650.1502664},
 doi = {10.1145/1502650.1502664},
 acmid = {1502664},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {people recommendations, recommender systems, sns, social networks},
} 

@inproceedings{Herlocker_2000,
 author = {Herlocker, Jonathan L. and Konstan, Joseph A. and Riedl, John},
 title = {Explaining Collaborative Filtering Recommendations},
 booktitle = {Proceedings of the 2000 ACM Conference on Computer Supported Cooperative Work},
 series = {CSCW '00},
 year = {2000},
 isbn = {1-58113-222-0},
 location = {Philadelphia, Pennsylvania, USA},
 pages = {241--250},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/358916.358995},
 doi = {10.1145/358916.358995},
 acmid = {358995},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {GroupLens, MoviesLens, collaborative filtering, explanations, recommender systems},
} 

@inproceedings{McNee_2006,
 author = {McNee, Sean M. and Riedl, John and Konstan, Joseph A.},
 title = {Being Accurate is Not Enough: How Accuracy Metrics Have Hurt Recommender Systems},
 booktitle = {CHI '06 Extended Abstracts on Human Factors in Computing Systems},
 series = {CHI EA '06},
 year = {2006},
 isbn = {1-59593-298-4},
 location = {Montr\&\#233;al, Qu\&\#233;bec, Canada},
 pages = {1097--1101},
 numpages = {5},
 url = {http://doi.acm.org/10.1145/1125451.1125659},
 doi = {10.1145/1125451.1125659},
 acmid = {1125659},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {collaborative filtering, metrics, personalization, recommender systems},
} 

@inproceedings{Guy:2010:SMR:1835449.1835484,
  author = {Guy, Ido and Zwerdling, Naama and Ronen, Inbal and Carmel, David and Uziel, Erel},
  title = {{Social Media Recommendation Based on People and Tags}},
  booktitle = {Proceedings of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval},
  series = {SIGIR '10},
  year = {2010},
  isbn = {978-1-4503-0153-4},
  location = {Geneva, Switzerland},
  pages = {194--201},
  numpages = {8},
  url = {http://doi.acm.org/10.1145/1835449.1835484},
  doi = {10.1145/1835449.1835484},
  acmid = {1835484},
  publisher = {ACM},
  address = {New York, NY, USA},
  keywords = {collaborative tagging, personalization, recommender systems, social media, social networks, social software},
}

@inproceedings{Geyer_2008,
 author = {Geyer, Werner and Dugan, Casey and Millen, David R. and Muller, Michael and Freyne, Jill},
 title = {Recommending Topics for Self-descriptions in Online User Profiles},
 booktitle = {Proceedings of the 2008 ACM Conference on Recommender Systems},
 series = {RecSys '08},
 year = {2008},
 isbn = {978-1-60558-093-7},
 location = {Lausanne, Switzerland},
 pages = {59--66},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1454008.1454019},
 doi = {10.1145/1454008.1454019},
 acmid = {1454019},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {impression formation, recommendation, self description, social networking, user profiles},
} 

@inproceedings{McCarthy_1998,
 author = {McCarthy, Joseph F. and Anagnost, Theodore D.},
 title = {MusicFX: An Arbiter of Group Preferences for Computer Supported Collaborative Workouts},
 booktitle = {Proceedings of the 1998 ACM Conference on Computer Supported Cooperative Work},
 series = {CSCW '98},
 year = {1998},
 isbn = {1-58113-009-0},
 location = {Seattle, Washington, USA},
 pages = {363--372},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/289444.289511},
 doi = {10.1145/289444.289511},
 acmid = {289511},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {audio, audiospaces, empirical studies, evaluation, human-computer interaction, intelligent environments, shared spaces, social behavior, social interactions, ubiquitous computing},
} 

@inproceedings{Jameson_2004,
 author = {Jameson, Anthony and Baldes, Stephan and Kleinbauer, Thomas},
 title = {Two Methods for Enhancing Mutual Awareness in a Group Recommender System},
 booktitle = {Proceedings of the Working Conference on Advanced Visual Interfaces},
 series = {AVI '04},
 year = {2004},
 isbn = {1-58113-867-9},
 location = {Gallipoli, Italy},
 pages = {447--449},
 numpages = {3},
 url = {http://doi.acm.org/10.1145/989863.989948},
 doi = {10.1145/989863.989948},
 acmid = {989948},
 publisher = {ACM},
 address = {New York, NY, USA},
} 

@inproceedings{Berkovsky_2010,
 author = {Berkovsky, Shlomo and Freyne, Jill},
 title = {Group-based Recipe Recommendations: Analysis of Data Aggregation Strategies},
 booktitle = {Proceedings of the Fourth ACM Conference on Recommender Systems},
 series = {RecSys '10},
 year = {2010},
 isbn = {978-1-60558-906-0},
 location = {Barcelona, Spain},
 pages = {111--118},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1864708.1864732},
 doi = {10.1145/1864708.1864732},
 acmid = {1864732},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {collaborative filtering, group recommendations, recipe recommendations},
} 

@inproceedings{Baltrunas_2010,
 author = {Baltrunas, Linas and Makcinskas, Tadas and Ricci, Francesco},
 title = {Group Recommendations with Rank Aggregation and Collaborative Filtering},
 booktitle = {Proceedings of the Fourth ACM Conference on Recommender Systems},
 series = {RecSys '10},
 year = {2010},
 isbn = {978-1-60558-906-0},
 location = {Barcelona, Spain},
 pages = {119--126},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1864708.1864733},
 doi = {10.1145/1864708.1864733},
 acmid = {1864733},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {collaborative filtering, group recommender system, rank aggregation},
} 

@inproceedings{Ronen:2014:RSM:2600428.2609596,
 author = {Ronen, Inbal and Guy, Ido and Kravi, Elad and Barnea, Maya},
 title = {Recommending Social Media Content to Community Owners},
 booktitle = {Proceedings of the 37th International ACM SIGIR Conference on Research \&\#38; Development in Information Retrieval},
 series = {SIGIR '14},
 year = {2014},
 isbn = {978-1-4503-2257-7},
 location = {Gold Coast, Queensland, Australia},
 pages = {243--252},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/2600428.2609596},
 doi = {10.1145/2600428.2609596},
 acmid = {2609596},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {enterprise, group recommendation, online communities, recommender systems, social media},
} 

@article{Terveen_2005,
 author = {Terveen, Loren and McDonald, David W.},
 title = {Social Matching: A Framework and Research Agenda},
 journal = {ACM Trans. Comput.-Hum. Interact.},
 issue_date = {September 2005},
 volume = {12},
 number = {3},
 month = sep,
 year = {2005},
 issn = {1073-0516},
 pages = {401--434},
 numpages = {34},
 url = {http://doi.acm.org/10.1145/1096737.1096740},
 doi = {10.1145/1096737.1096740},
 acmid = {1096740},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Human-computer interaction, collaborative filtering, information visualization, recommender systems, social networks},
} 

@inproceedings{Chen_2009,
 author = {Chen, Jilin and Geyer, Werner and Dugan, Casey and Muller, Michael and Guy, Ido},
 title = {Make New Friends, but Keep the Old: Recommending People on Social Networking Sites},
 booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
 series = {CHI '09},
 year = {2009},
 isbn = {978-1-60558-246-7},
 location = {Boston, MA, USA},
 pages = {201--210},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/1518701.1518735},
 doi = {10.1145/1518701.1518735},
 acmid = {1518735},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {friend, recommender system, social networking},
} 

@inproceedings{Daly_2010,
 author = {Daly, Elizabeth M. and Geyer, Werner and Millen, David R.},
 title = {The Network Effects of Recommending Social Connections},
 booktitle = {Proceedings of the Fourth ACM Conference on Recommender Systems},
 series = {RecSys '10},
 year = {2010},
 isbn = {978-1-60558-906-0},
 location = {Barcelona, Spain},
 pages = {301--304},
 numpages = {4},
 url = {http://doi.acm.org/10.1145/1864708.1864772},
 doi = {10.1145/1864708.1864772},
 acmid = {1864772},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {recommender systems, social-networks},
} 

@article{Quercia_2009,
  title = {{FriendSensing: recommending friends using mobile phones}},
  isbn = {http://id.crossref.org/isbn/9781605584355},
  url = {http://dx.doi.org/10.1145/1639714.1639766},
  doi = {10.1145/1639714.1639766},
  journal = {Proceedings of the third ACM conference on Recommender systems - RecSys  ’09},
  publisher = {ACM Press},
  pages = {273--276},
  author = {Quercia, Daniele and Capra, Licia},
  year = {2009},
}

@inproceedings{Pizzato_2010,
 author = {Pizzato, Luiz and Rej, Tomek and Chung, Thomas and Koprinska, Irena and Kay, Judy},
 title = {RECON: A Reciprocal Recommender for Online Dating},
 booktitle = {Proceedings of the Fourth ACM Conference on Recommender Systems},
 series = {RecSys '10},
 year = {2010},
 isbn = {978-1-60558-906-0},
 location = {Barcelona, Spain},
 pages = {207--214},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1864708.1864747},
 doi = {10.1145/1864708.1864747},
 acmid = {1864747},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {online dating, reciprocity, recommender systems},
} 

@inproceedings{Freyne_2009,
 author = {Freyne, Jill and Jacovi, Michal and Guy, Ido and Geyer, Werner},
 title = {Increasing Engagement Through Early Recommender Intervention},
 booktitle = {Proceedings of the Third ACM Conference on Recommender Systems},
 series = {RecSys '09},
 year = {2009},
 isbn = {978-1-60558-435-5},
 location = {New York, New York, USA},
 pages = {85--92},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1639714.1639730},
 doi = {10.1145/1639714.1639730},
 acmid = {1639730},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {adoption, community, participation, recommender systems, social networking, social software, web 2.0},
} 


@inproceedings{Hannon_2010,
 author = {Hannon, John and Bennett, Mike and Smyth, Barry},
 title = {Recommending Twitter Users to Follow Using Content and Collaborative Filtering Approaches},
 booktitle = {Proceedings of the Fourth ACM Conference on Recommender Systems},
 series = {RecSys '10},
 year = {2010},
 isbn = {978-1-60558-906-0},
 location = {Barcelona, Spain},
 pages = {199--206},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1864708.1864746},
 doi = {10.1145/1864708.1864746},
 acmid = {1864746},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {collaborative filtering, content based recommendation, twitter, web 2.0},
} 


@inproceedings{brzozowski2011should,
  title = {{Who Should I Follow? Recommending People in Directed Social Networks.}},
  author = {Brzozowski, Michael J and Romero, Daniel M},
  booktitle = {ICWSM},
  year = {2011},
}

@inproceedings{Gupta:2013:WFS:2488388.2488433,
  author = {Gupta, Pankaj and Goel, Ashish and Lin, Jimmy and Sharma, Aneesh and Wang, Dong and Zadeh, Reza},
  title = {{WTF: The Who to Follow Service at Twitter}},
  booktitle = {Proceedings of the 22Nd International Conference on World Wide Web},
  series = {WWW '13},
  year = {2013},
  isbn = {978-1-4503-2035-1},
  location = {Rio de Janeiro, Brazil},
  pages = {505--514},
  numpages = {10},
  url = {http://dl.acm.org/citation.cfm?id=2488388.2488433},
  acmid = {2488433},
  publisher = {International World Wide Web Conferences Steering Committee},
  address = {Republic and Canton of Geneva, Switzerland},
  keywords = {graph processing, hadoop, link prediction},
}


@inproceedings{Guy:2013:MEI:2488388.2488434,
  author = {Guy, Ido and Avraham, Uri and Carmel, David and Ur, Sigalit and Jacovi, Michal and Ronen, Inbal},
  title = {{Mining Expertise and Interests from Social Media}},
  booktitle = {Proceedings of the 22Nd International Conference on World Wide Web},
  series = {WWW '13},
  year = {2013},
  isbn = {978-1-4503-2035-1},
  location = {Rio de Janeiro, Brazil},
  pages = {515--526},
  numpages = {12},
  url = {http://dl.acm.org/citation.cfm?id=2488388.2488434},
  acmid = {2488434},
  publisher = {International World Wide Web Conferences Steering Committee},
  address = {Republic and Canton of Geneva, Switzerland},
  keywords = {enterprise, enterprise 2.0, expert finding, expert recommendation, expert search, expertise location, interest mining, people search, social business, social computing, social media, social software, web 2.0},
}

@inproceedings{Wang:2013:TCS:2488388.2488509,
 author = {Wang, Jian and Zhang, Yi and Posse, Christian and Bhasin, Anmol},
 title = {Is It Time for a Career Switch?},
 booktitle = {Proceedings of the 22Nd International Conference on World Wide Web},
 series = {WWW '13},
 year = {2013},
 isbn = {978-1-4503-2035-1},
 location = {Rio de Janeiro, Brazil},
 pages = {1377--1388},
 numpages = {12},
 url = {http://dl.acm.org/citation.cfm?id=2488388.2488509},
 acmid = {2488509},
 publisher = {International World Wide Web Conferences Steering Committee},
 address = {Republic and Canton of Geneva, Switzerland},
 keywords = {hazards model, recommender system, tenure},
} 

@inproceedings{Chen:2010:STE:1753326.1753503,
 author = {Chen, Jilin and Nairn, Rowan and Nelson, Les and Bernstein, Michael and Chi, Ed},
 title = {Short and Tweet: Experiments on Recommending Content from Information Streams},
 booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
 series = {CHI '10},
 year = {2010},
 isbn = {978-1-60558-929-9},
 location = {Atlanta, Georgia, USA},
 pages = {1185--1194},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/1753326.1753503},
 doi = {10.1145/1753326.1753503},
 acmid = {1753503},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {information stream, recommender system, social filtering, topic modeling},
} 

@inproceedings{Chen:2012:CPT:2348283.2348372,
 author = {Chen, Kailong and Chen, Tianqi and Zheng, Guoqing and Jin, Ou and Yao, Enpeng and Yu, Yong},
 title = {Collaborative Personalized Tweet Recommendation},
 booktitle = {Proceedings of the 35th International ACM SIGIR Conference on Research and Development in Information Retrieval},
 series = {SIGIR '12},
 year = {2012},
 isbn = {978-1-4503-1472-5},
 location = {Portland, Oregon, USA},
 pages = {661--670},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/2348283.2348372},
 doi = {10.1145/2348283.2348372},
 acmid = {2348372},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {collaborative ranking, personalization, tweet recommendation, twitter},
} 

@inproceedings{Guy:2009:PRS:1639714.1639725,
 author = {Guy, Ido and Zwerdling, Naama and Carmel, David and Ronen, Inbal and Uziel, Erel and Yogev, Sivan and Ofek-Koifman, Shila},
 title = {Personalized Recommendation of Social Software Items Based on Social Relations},
 booktitle = {Proceedings of the Third ACM Conference on Recommender Systems},
 series = {RecSys '09},
 year = {2009},
 isbn = {978-1-60558-435-5},
 location = {New York, New York, USA},
 pages = {53--60},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1639714.1639725},
 doi = {10.1145/1639714.1639725},
 acmid = {1639725},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {personalization, recommender systems, social media, social networks, social software},
} 

@article{Lempel:2001:SSA:382979.383041,
 author = {Lempel, R. and Moran, S.},
 title = {SALSA: The Stochastic Approach for Link-structure Analysis},
 journal = {ACM Trans. Inf. Syst.},
 issue_dated = {April 2001},
 volume = {19},
 number = {2},
 month = apr,
 year = {2001},
 issn = {1046-8188},
 pages = {131--160},
 numpages = {30},
 url = {http://doi.acm.org/10.1145/382979.383041},
 doi = {10.1145/382979.383041},
 acmid = {383041},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Link-structure analysis, SALSA, TKC effect, hubs and authorities, random walks},
} 

@inproceedings{Sigurbjornsson:2008:FTR:1367497.1367542,
 author = {Sigurbj\"{o}rnsson, B\"{o}rkur and van Zwol, Roelof},
 title = {Flickr Tag Recommendation Based on Collective Knowledge},
 booktitle = {Proceedings of the 17th International Conference on World Wide Web},
 series = {WWW '08},
 year = {2008},
 isbn = {978-1-60558-085-2},
 location = {Beijing, China},
 pages = {327--336},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/1367497.1367542},
 doi = {10.1145/1367497.1367542},
 acmid = {1367542},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {aggregated tag suggestion, collective knowledge, flickr, photo annotations, tag characterisation, tag co-occurence, tag recommendation},
} 

@incollection{jaschke2007tag,
  title={Tag recommendations in folksonomies},
  author={J{\"a}schke, Robert and Marinho, Leandro and Hotho, Andreas and Schmidt-Thieme, Lars and Stumme, Gerd},
  booktitle={Knowledge Discovery in Databases: PKDD 2007},
  pages={506--514},
  year={2007},
  publisher={Springer}
}

@article{kaser2007tag,
  title={Tag-cloud drawing: Algorithms for cloud visualization},
  author={Kaser, Owen and Lemire, Daniel},
  journal={arXiv preprint cs/0703109},
  year={2007}
}

@phdthesis{Golbeck:2005:CAT:1104446,
 author = {Golbeck, Jennifer Ann},
 title = {Computing and Applying Trust in Web-based Social Networks},
 year = {2005},
 isbn = {0-542-18324-2},
 note = {AAI3178583},
 publisher = {University of Maryland at College Park},
 address = {College Park, MD, USA},
} 

@article{buhrmester2011amazon,
  title={Amazon's Mechanical Turk a new source of inexpensive, yet high-quality, data?},
  author={Buhrmester, Michael and Kwang, Tracy and Gosling, Samuel D},
  journal={Perspectives on Psychological Science},
  volume={6},
  number={1},
  pages={3--5},
  year={2011},
  publisher={Sage Publications}
}

@inproceedings{Kittur:2008:CUS:1357054.1357127,
 author = {Kittur, Aniket and Chi, Ed H. and Suh, Bongwon},
 title = {Crowdsourcing User Studies with Mechanical Turk},
 booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
 series = {CHI '08},
 year = {2008},
 isbn = {978-1-60558-011-1},
 location = {Florence, Italy},
 pages = {453--456},
 numpages = {4},
 url = {http://doi.acm.org/10.1145/1357054.1357127},
 doi = {10.1145/1357054.1357127},
 acmid = {1357127},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Mechanical Turk, Wikipedia, micro task, remote user study},
} 

@inproceedings{alonso2009can,
  title={Can we get rid of TREC assessors? Using Mechanical Turk for relevance assessment},
  author={Alonso, Omar and Mizzaro, Stefano},
  booktitle={Proceedings of the SIGIR 2009 Workshop on the Future of IR Evaluation},
  volume={15},
  pages={16},
  year={2009}
}

@inproceedings{said2014you,
  title={You are What You Eat! Tracking Health Through Recipe Interactions},
  author={Said, Alan and Bellog{\'\i}n, Alejandro},
  booktitle={6th RecSys Workshop on Recommender Systems and the Social Web},
  location = {Foster City, CA, USA},
  series = {RSWeb '14},
  pages={4},
  year={2014}
}

@inproceedings{Cosley:2007:SUI:1216295.1216309,
 author = {Cosley, Dan and Frankowski, Dan and Terveen, Loren and Riedl, John},
 title = {SuggestBot: Using Intelligent Task Routing to Help People Find Work in Wikipedia},
 booktitle = {Proceedings of the 12th International Conference on Intelligent User Interfaces},
 series = {IUI '07},
 year = {2007},
 isbn = {1-59593-481-2},
 location = {Honolulu, Hawaii, USA},
 pages = {32--41},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/1216295.1216309},
 doi = {10.1145/1216295.1216309},
 acmid = {1216309},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Wikipedia, intelligent task routing, member-maintained communities, online communities, recommender systems},
} 

@inproceedings{Dugan:2010:LLB:1753326.1753623,
 author = {Dugan, Casey and Geyer, Werner and Millen, David R.},
 title = {Lessons Learned from Blog Muse: Audience-based Inspiration for Bloggers},
 booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
 series = {CHI '10},
 year = {2010},
 isbn = {978-1-60558-929-9},
 location = {Atlanta, Georgia, USA},
 pages = {1965--1974},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/1753326.1753623},
 doi = {10.1145/1753326.1753623},
 acmid = {1753623},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {blog, participation, recommendations, social software},
} 

@inproceedings{Geyer:2008:RTS:1454008.1454019,
 author = {Geyer, Werner and Dugan, Casey and Millen, David R. and Muller, Michael and Freyne, Jill},
 title = {Recommending Topics for Self-descriptions in Online User Profiles},
 booktitle = {Proceedings of the 2008 ACM Conference on Recommender Systems},
 series = {RecSys '08},
 year = {2008},
 isbn = {978-1-60558-093-7},
 location = {Lausanne, Switzerland},
 pages = {59--66},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1454008.1454019},
 doi = {10.1145/1454008.1454019},
 acmid = {1454019},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {impression formation, recommendation, self description, social networking, user profiles},
} 

@article{ryan2000self,
  title={Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being.},
  author={Ryan, Richard M and Deci, Edward L},
  journal={American psychologist},
  volume={55},
  number={1},
  pages={68},
  year={2000},
  publisher={American Psychological Association}
}

@inproceedings{Fogg:2009:BMP:1541948.1541999,
 author = {Fogg, BJ},
 title = {A Behavior Model for Persuasive Design},
 booktitle = {Proceedings of the 4th International Conference on Persuasive Technology},
 series = {Persuasive '09},
 year = {2009},
 isbn = {978-1-60558-376-1},
 location = {Claremont, California},
 pages = {40:1--40:7},
 articleno = {40},
 numpages = {7},
 url = {http://doi.acm.org/10.1145/1541948.1541999},
 doi = {10.1145/1541948.1541999},
 acmid = {1541999},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {behavior change, captology, motivation, persuasion, persuasive design, persuasive technology, simplicity, triggers},
} 

@article{liben2007link,
  title={The link-prediction problem for social networks},
  author={Liben-Nowell, David and Kleinberg, Jon},
  journal={Journal of the American society for information science and technology},
  volume={58},
  number={7},
  pages={1019--1031},
  year={2007},
  publisher={Wiley Online Library}
}

@inproceedings{Scellato:2011:EPF:2020408.2020575,
 author = {Scellato, Salvatore and Noulas, Anastasios and Mascolo, Cecilia},
 title = {Exploiting Place Features in Link Prediction on Location-based Social Networks},
 booktitle = {Proceedings of the 17th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining},
 series = {KDD '11},
 year = {2011},
 isbn = {978-1-4503-0813-7},
 location = {San Diego, California, USA},
 pages = {1046--1054},
 numpages = {9},
 url = {http://doi.acm.org/10.1145/2020408.2020575},
 doi = {10.1145/2020408.2020575},
 acmid = {2020575},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {link prediction, location-based services, social networks},
} 

@inproceedings{Wang:2011:HMS:2020408.2020581,
 author = {Wang, Dashun and Pedreschi, Dino and Song, Chaoming and Giannotti, Fosca and Barabasi, Albert-Laszlo},
 title = {Human Mobility, Social Ties, and Link Prediction},
 booktitle = {Proceedings of the 17th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining},
 series = {KDD '11},
 year = {2011},
 isbn = {978-1-4503-0813-7},
 location = {San Diego, California, USA},
 pages = {1100--1108},
 numpages = {9},
 url = {http://doi.acm.org/10.1145/2020408.2020581},
 doi = {10.1145/2020408.2020581},
 acmid = {2020581},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {human mobility, link prediction, social network},
} 

@inproceedings{Leskovec:2010:PPN:1772690.1772756,
 author = {Leskovec, Jure and Huttenlocher, Daniel and Kleinberg, Jon},
 title = {Predicting Positive and Negative Links in Online Social Networks},
 booktitle = {Proceedings of the 19th International Conference on World Wide Web},
 series = {WWW '10},
 year = {2010},
 isbn = {978-1-60558-799-8},
 location = {Raleigh, North Carolina, USA},
 pages = {641--650},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/1772690.1772756},
 doi = {10.1145/1772690.1772756},
 acmid = {1772756},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {distrust, negative edges, positive edges, signed networks, status theory, structural balance, trust},
} 

@inproceedings{fire2011link,
  title={Link prediction in social networks using computationally efficient topological features},
  author={Fire, Michael and Tenenboim, Lena and Lesser, Ofrit and Puzis, Rami and Rokach, Lior and Elovici, Yuval},
  booktitle={Privacy, security, risk and trust (passat), 2011 ieee third international conference on and 2011 ieee third international conference on social computing (socialcom)},
  pages={73--80},
  year={2011},
  organization={IEEE},
}

@inproceedings{McDonald:1998:JTM:289444.289506,
 author = {McDonald, David W. and Ackerman, Mark S.},
 title = {Just Talk to Me: A Field Study of Expertise Location},
 booktitle = {Proceedings of the 1998 ACM Conference on Computer Supported Cooperative Work},
 series = {CSCW '98},
 year = {1998},
 isbn = {1-58113-009-0},
 location = {Seattle, Washington, USA},
 pages = {315--324},
 numpages = {10},
 url = {http://doi.acm.org/10.1145/289444.289506},
 doi = {10.1145/289444.289506},
 acmid = {289506},
 publisher = {ACM},
 address = {New York, NY, USA},
} 

@article{Kautz:1997:RWC:245108.245123,
 author = {Kautz, Henry and Selman, Bart and Shah, Mehul},
 title = {Referral Web: Combining Social Networks and Collaborative Filtering},
 journal = {Commun. ACM},
 issue_date = {March 1997},
 volume = {40},
 number = {3},
 month = mar,
 year = {1997},
 issn = {0001-0782},
 pages = {63--65},
 numpages = {3},
 url = {http://doi.acm.org/10.1145/245108.245123},
 doi = {10.1145/245108.245123},
 acmid = {245123},
 publisher = {ACM},
 address = {New York, NY, USA},
} 

@article{dwyer2011privacy,
  title={Privacy in the age of Google and Facebook},
  author={Dwyer, Catherine},
  journal={Technology and Society Magazine, IEEE},
  volume={30},
  number={3},
  pages={58--63},
  year={2011},
  publisher={IEEE}
}

@inproceedings{bennett2007netflix,
  title={The netflix prize},
  author={Bennett, James and Lanning, Stan},
  booktitle={Proceedings of KDD cup and workshop},
  volume={2007},
  pages={35},
  year={2007}
}

@inproceedings{Phelan:2009:UTR:1639714.1639794,
 author = {Phelan, Owen and McCarthy, Kevin and Smyth, Barry},
 title = {Using Twitter to Recommend Real-time Topical News},
 booktitle = {Proceedings of the Third ACM Conference on Recommender Systems},
 series = {RecSys '09},
 year = {2009},
 isbn = {978-1-60558-435-5},
 location = {New York, New York, USA},
 pages = {385--388},
 numpages = {4},
 url = {http://doi.acm.org/10.1145/1639714.1639794},
 doi = {10.1145/1639714.1639794},
 acmid = {1639794},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {content-based recommendation, news recommendation, real-time recommendation, social recommendation, twitter},
} 

@inproceedings{GarciaEsparza:2010:RWS:1864708.1864773,
 author = {Garcia Esparza, Sandra and O'Mahony, Michael P. and Smyth, Barry},
 title = {On the Real-time Web As a Source of Recommendation Knowledge},
 booktitle = {Proceedings of the Fourth ACM Conference on Recommender Systems},
 series = {RecSys '10},
 year = {2010},
 isbn = {978-1-60558-906-0},
 location = {Barcelona, Spain},
 pages = {305--308},
 numpages = {4},
 url = {http://doi.acm.org/10.1145/1864708.1864773},
 doi = {10.1145/1864708.1864773},
 acmid = {1864773},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {micro-blogging, real-time web, recommender systems},
} 

@inproceedings{Freyne:2010:SNF:1864708.1864766,
 author = {Freyne, Jill and Berkovsky, Shlomo and Daly, Elizabeth M. and Geyer, Werner},
 title = {Social Networking Feeds: Recommending Items of Interest},
 booktitle = {Proceedings of the Fourth ACM Conference on Recommender Systems},
 series = {RecSys '10},
 year = {2010},
 isbn = {978-1-60558-906-0},
 location = {Barcelona, Spain},
 pages = {277--280},
 numpages = {4},
 url = {http://doi.acm.org/10.1145/1864708.1864766},
 doi = {10.1145/1864708.1864766},
 acmid = {1864766},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {feeds, personalization, relevance, social network},
} 

@inproceedings{Guy:2011:PAS:2043932.2043966,
 author = {Guy, Ido and Ronen, Inbal and Raviv, Ariel},
 title = {Personalized Activity Streams: Sifting Through the "River of News"},
 booktitle = {Proceedings of the Fifth ACM Conference on Recommender Systems},
 series = {RecSys '11},
 year = {2011},
 isbn = {978-1-4503-0683-6},
 location = {Chicago, Illinois, USA},
 pages = {181--188},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/2043932.2043966},
 doi = {10.1145/2043932.2043966},
 acmid = {2043966},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Twitter, activity streams, news feed, personalization, real-time web, recommender systems, social media, social networks, social streams},
} 

@inproceedings{paek2010predicting,
  title={Predicting the Importance of Newsfeed Posts and Social Network Friends.},
  author={Paek, Tim and Gamon, Michael and Counts, Scott and Chickering, David Maxwell and Dhesi, Aman},
  booktitle={AAAI},
  volume={10},
  pages={1419--1424},
  year={2010}
}