{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T04:36:27Z","timestamp":1750221387419,"version":"3.41.0"},"publisher-location":"New York, New York, USA","reference-count":35,"publisher":"ACM Press","license":[{"start":{"date-parts":[[2018,1,1]],"date-time":"2018-01-01T00:00:00Z","timestamp":1514764800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018]]},"DOI":"10.1145\/3178876.3186037","type":"proceedings-article","created":{"date-parts":[[2018,4,13]],"date-time":"2018-04-13T15:53:48Z","timestamp":1523634828000},"page":"65-75","source":"Crossref","is-referenced-by-count":6,"title":["The Size Conundrum"],"prefix":"10.1145","author":[{"given":"Himel","family":"Dev","sequence":"first","affiliation":[{"name":"University of Illinois at Urbana-Champaign, Champaign, IL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chase","family":"Geigle","sequence":"additional","affiliation":[{"name":"University of Illinois at Urbana-Champaign, Champaign, IL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qingtao","family":"Hu","sequence":"additional","affiliation":[{"name":"University of Illinois at Urbana-Champaign, Champaign, IL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiahui","family":"Zheng","sequence":"additional","affiliation":[{"name":"Peking University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hari","family":"Sundaram","sequence":"additional","affiliation":[{"name":"University of Illinois at Urbana-Champaign, Champaign, IL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","reference":[{"key":"key-10.1145\/3178876.3186037-1","unstructured":"Mohammed Abufouda. 2017. Community Aliveness: Discovering Interaction Decay Patterns in Online Social Communities. CoRR Vol. abs\/1707.04477 (2017). showeprint[arxiv]1707.04477 http:\/\/arxiv.org\/abs\/1707.04477"},{"key":"key-10.1145\/3178876.3186037-2","unstructured":"Lada A Adamic. 2000. Zipf, power-laws, and pareto-a ranking tutorial. Xerox Palo Alto Research Center, Palo Alto, CA, http:\/\/ginger. hpl. hp. com\/shl\/papers\/ranking\/ranking. html (2000)."},{"key":"key-10.1145\/3178876.3186037-3","doi-asserted-by":"crossref","unstructured":"Lada A. Adamic, Jun Zhang, Eytan Bakshy, and Mark S. Ackerman. 2008. Knowledge Sharing and Yahoo Answers: Everyone Knows Something Proceedings of the 17th International Conference on World Wide Web (WWW '08). ACM, New York, NY, USA, 665--674. https:\/\/doi.org\/10.1145\/1367497.1367587","DOI":"10.1145\/1367497.1367587"},{"key":"key-10.1145\/3178876.3186037-4","doi-asserted-by":"crossref","unstructured":"Pal Aditya, Chang Shuo, and Konstan Joseph, A. 2012. Evolution of Experts in Question Answering Communities Proceedings of the 6th International AAAI Conference on Weblogs and Social Media.","DOI":"10.1609\/icwsm.v6i1.14262"},{"key":"key-10.1145\/3178876.3186037-5","doi-asserted-by":"crossref","unstructured":"Ashton Anderson, Daniel Huttenlocher, Jon Kleinberg, and Jure Leskovec. 2012. Discovering Value from Community Activity on Focused Question Answering Sites: A Case Study of Stack Overflow. In Proceedings of the 18th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD '12). ACM, New York, NY, USA, 850--858. https:\/\/doi.org\/10.1145\/2339530.2339665","DOI":"10.1145\/2339530.2339665"},{"key":"key-10.1145\/3178876.3186037-6","doi-asserted-by":"crossref","unstructured":"Lars Backstrom, Dan Huttenlocher, Jon Kleinberg, and Xiangyang Lan. 2006. Group Formation in Large Social Networks: Membership, Growth, and Evolution Proceedings of the 12th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD '06). ACM, New York, NY, USA, 44--54. https:\/\/doi.org\/10.1145\/1150402.1150412","DOI":"10.1145\/1150402.1150412"},{"key":"key-10.1145\/3178876.3186037-7","doi-asserted-by":"crossref","unstructured":"Ricardo Baeza-Yates and Diego Saez-Trumper. 2015. Wisdom of the Crowd or Wisdom of a Few?: An Analysis of Users' Content Generation Proceedings of the 26th ACM Conference on Hypertext &#38;#38; Social Media (HT '15). ACM, 69--74. https:\/\/doi.org\/10.1145\/2700171.2791056","DOI":"10.1145\/2700171.2791056"},{"key":"key-10.1145\/3178876.3186037-8","doi-asserted-by":"crossref","unstructured":"Mary Ann Branch, Thomas F Coleman, and Yuying Li. 1999. A subspace, interior, and conjugate gradient method for large-scale bound-constrained minimization problems. SIAM Journal on Scientific Computing Vol. 21, 1 (1999), 1--23.","DOI":"10.1137\/S1064827595289108"},{"key":"key-10.1145\/3178876.3186037-9","doi-asserted-by":"crossref","unstructured":"Brian S Butler. 2001. Membership size, communication activity, and sustainability: A resource-based model of online social structures. Information systems research Vol. 12, 4 (2001), 346--362.","DOI":"10.1287\/isre.12.4.346.9703"},{"key":"key-10.1145\/3178876.3186037-10","doi-asserted-by":"crossref","unstructured":"Yan Chen, TECK-HUA HO, and YONG-MI KIM. 2010. Knowledge market design: A field experiment at Google Answers. Journal of Public Economic Theory Vol. 12, 4 (2010), 641--664.","DOI":"10.1111\/j.1467-9779.2010.01468.x"},{"key":"key-10.1145\/3178876.3186037-11","unstructured":"Aswath Damodaran. 2002. Investment Valuation: Tools and Techniques for Determining the Value of Any Asset. Wiley. showLCCN2001026890"},{"key":"key-10.1145\/3178876.3186037-12","doi-asserted-by":"crossref","unstructured":"Katherine Ellis, Moises Goldszmidt, Gert Lanckriet, Nina Mishra, and Omer Reingold. 2016. Equality and Social Mobility in Twitter Discussion Groups Proceedings of the Ninth ACM International Conference on Web Search and Data Mining (WSDM '16). ACM, New York, NY, USA, 523--532. https:\/\/doi.org\/10.1145\/2835776.2835814","DOI":"10.1145\/2835776.2835814"},{"key":"key-10.1145\/3178876.3186037-13","unstructured":"Desta Fekedulegn, Si&#250;t&#225;in M&#225;rt'&#305;n P&#225;draig Mac, and Jim J. Colbert. 1999. Parameter Estimation of Nonlinear Models in Forestry. Finnish Society of Forest Science and the Finnish Forest Research Institute (1999)."},{"key":"key-10.1145\/3178876.3186037-14","unstructured":"Emilio Ferrara, Nazanin Alipourfard, Keith Burghardt, Chiranth Gopal, and Kristina Lerman. 2017. Dynamics of Content Quality in Collaborative Knowledge Production Proceedings of the Eleventh International Conference on Web and Social Media, ICWSM 2017, Montr&#233;al, Qu&#233;bec, Canada, May 15--18, 2017. 520--523."},{"key":"key-10.1145\/3178876.3186037-15","doi-asserted-by":"crossref","unstructured":"Adabriand Furtado, Nazareno Andrade, Nigini Oliveira, and Francisco Brasileiro. 2013. Contributor Profiles, Their Dynamics, and Their Importance in Five Q&#38;A Sites Proceedings of the 2013 Conference on Computer Supported Cooperative Work (CSCW '13). ACM, 1237--1252. https:\/\/doi.org\/10.1145\/2441776.2441916","DOI":"10.1145\/2441776.2441916"},{"key":"key-10.1145\/3178876.3186037-16","doi-asserted-by":"crossref","unstructured":"David Garcia, Pavlin Mavrodiev, and Frank Schweitzer. 2013. Social Resilience in Online Communities: The Autopsy of Friendster Proceedings of the First ACM Conference on Online Social Networks (COSN '13). ACM, New York, NY, USA, 39--50. https:\/\/doi.org\/10.1145\/2512938.2512946","DOI":"10.1145\/2512938.2512946"},{"key":"key-10.1145\/3178876.3186037-17","unstructured":"Chase Geigle, Himel Dev, Hari Sundaram, and Chengxiang Zhai. 2018. Discovering and Analyzing Action-Based Roles in Community Question Answering Networks. Technical Report."},{"key":"key-10.1145\/3178876.3186037-18","unstructured":"Glossary of economics. 2017. Glossary of economics -- Wikipedia, The Free Encyclopedia. (2017). https:\/\/en.wikipedia.org\/wiki\/Glossary_of_economics [Online; accessed 30-October-2017]."},{"key":"key-10.1145\/3178876.3186037-19","doi-asserted-by":"crossref","unstructured":"Benjamin V. Hanrahan, Gregorio Convertino, and Les Nelson. 2012. Modeling Problem Difficulty and Expertise in Stackoverflow Proceedings of the ACM 2012 Conference on Computer Supported Cooperative Work Companion (CSCW '12). ACM, New York, NY, USA, 91--94. https:\/\/doi.org\/10.1145\/2141512.2141550","DOI":"10.1145\/2141512.2141550"},{"key":"key-10.1145\/3178876.3186037-20","doi-asserted-by":"crossref","unstructured":"Heike Hofmann, Hadley Wickham, and Karen Kafadar. 2017. Letter-Value Plots: Boxplots for Large Data. Journal of Computational and Graphical Statistics, Vol. 26, 3 (2017), 469--477. https:\/\/doi.org\/10.1080\/10618600.2017.1305277","DOI":"10.1080\/10618600.2017.1305277"},{"key":"key-10.1145\/3178876.3186037-21","doi-asserted-by":"crossref","unstructured":"Sanjay Ram Kairam, Dan J. Wang, and Jure Leskovec. 2012. The Life and Death of Online Groups: Predicting Group Growth and Longevity Proceedings of the Fifth ACM International Conference on Web Search and Data Mining (WSDM '12). ACM, New York, NY, USA, 673--682. https:\/\/doi.org\/10.1145\/2124295.2124374","DOI":"10.1145\/2124295.2124374"},{"key":"key-10.1145\/3178876.3186037-22","doi-asserted-by":"crossref","unstructured":"Komal Kapoor, Mingxuan Sun, Jaideep Srivastava, and Tao Ye. 2014. A Hazard Based Approach to User Return Time Prediction Proceedings of the 20th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD '14). ACM, New York, NY, USA, 1719--1728. https:\/\/doi.org\/10.1145\/2623330.2623348","DOI":"10.1145\/2623330.2623348"},{"key":"key-10.1145\/3178876.3186037-23","doi-asserted-by":"crossref","unstructured":"Robert E. Kraut and Andrew T. Fiore. 2014. The Role of Founders in Building Online Groups. In Proceedings of the 17th ACM Conference on Computer Supported Cooperative Work &#38;#38; Social Computing (CSCW '14). ACM, New York, NY, USA, 722--732. https:\/\/doi.org\/10.1145\/2531602.2531648","DOI":"10.1145\/2531602.2531648"},{"key":"key-10.1145\/3178876.3186037-24","doi-asserted-by":"crossref","unstructured":"Ravi Kumar, Yury Lifshits, and Andrew Tomkins. 2010. Evolution of Two-sided Markets. In Proceedings of the Third ACM International Conference on Web Search and Data Mining (WSDM '10). ACM, New York, NY, USA, 311--320. https:\/\/doi.org\/10.1145\/1718487.1718526","DOI":"10.1145\/1718487.1718526"},{"key":"key-10.1145\/3178876.3186037-25","doi-asserted-by":"crossref","unstructured":"Ravi Kumar, Jasmine Novak, and Andrew Tomkins. 2006. Structure and Evolution of Online Social Networks. Proceedings of the 12th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD '06). ACM, New York, NY, USA, 611--617. https:\/\/doi.org\/10.1145\/1150402.1150476","DOI":"10.1145\/1150402.1150476"},{"key":"key-10.1145\/3178876.3186037-26","doi-asserted-by":"crossref","unstructured":"Varun Kumar and Niranjan Pedanekar. 2016. Mining Shapes of Expertise in Online Social Q&#38;#38;A Communities Proceedings of the 19th ACM Conference on Computer Supported Cooperative Work and Social Computing Companion (CSCW '16 Companion). ACM, New York, NY, USA, 317--320. https:\/\/doi.org\/10.1145\/2818052.2869096","DOI":"10.1145\/2818052.2869096"},{"key":"key-10.1145\/3178876.3186037-27","doi-asserted-by":"crossref","unstructured":"Zhiyuan Lin, Niloufar Salehi, Bowen Yao, Yiqi Chen, and Michael Bernstein. 2017. Better When It Was Smaller? Community Content and Behavior After Massive Growth Proceedings of the 11th International AAAI Conference on Web and Social Media.","DOI":"10.1609\/icwsm.v11i1.14884"},{"key":"key-10.1145\/3178876.3186037-28","unstructured":"Thomas Robert Malthus. 1809. An essay on the principle of population, as it affects the future improvement of society. Vol. Vol. 2."},{"key":"key-10.1145\/3178876.3186037-29","unstructured":"Ross Mayfield. 2006. Power Law of Participation. (2006). http:\/\/ross.typepad.com\/blog\/2006\/04\/power_law_of_pa.html [Online; accessed 30-October-2017]."},{"key":"key-10.1145\/3178876.3186037-30","doi-asserted-by":"crossref","unstructured":"Akshay Patil, Juan Liu, and Jie Gao. 2013. Predicting Group Stability in Online Social Networks Proceedings of the 22Nd International Conference on World Wide Web (WWW '13). ACM, 1021--1030. https:\/\/doi.org\/10.1145\/2488388.2488477","DOI":"10.1145\/2488388.2488477"},{"key":"key-10.1145\/3178876.3186037-31","doi-asserted-by":"crossref","unstructured":"Liu Qiaoling and Agichtein Eugene. 2011. Modeling Answerer Behavior in Collaborative Question Answering Systems Proceedings of the 33rd European conference on Advances in information retrieval.","DOI":"10.1007\/978-3-642-20161-5_9"},{"key":"key-10.1145\/3178876.3186037-32","doi-asserted-by":"crossref","unstructured":"Bruno Ribeiro. 2014. Modeling and Predicting the Growth and Death of Membership-based Websites Proceedings of the 23rd International Conference on World Wide Web (WWW '14). ACM, New York, NY, USA, 653--664. https:\/\/doi.org\/10.1145\/2566486.2567984","DOI":"10.1145\/2566486.2567984"},{"key":"key-10.1145\/3178876.3186037-33","unstructured":"Christopher A Sims. 1980. Macroeconomics and reality. Econometrica: Journal of the Econometric Society (1980), 1--48."},{"key":"key-10.1145\/3178876.3186037-34","doi-asserted-by":"crossref","unstructured":"Ivan Srba and Maria Bielikova. 2016 a. A Comprehensive Survey and Classification of Approaches for Community Question Answering. ACM Trans. Web, Vol. 10, 3, Article bibinfoarticleno18 (Aug.. 2016), bibinfonumpages63 pages.1145\/2556288.2557348","DOI":"10.1145\/2934687"},{"key":"key-10.1145\/3178876.3186037-35","doi-asserted-by":"crossref","unstructured":"Haiyi Zhu, Robert E. Kraut, and Aniket Kittur. 2014 b. The Impact of Membership Overlap on the Survival of Online Communities Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '14). ACM, New York, NY, USA, 281--290. https:\/\/doi.org\/10.1145\/2556288.2557213","DOI":"10.1145\/2556288.2557213"}],"event":{"number":"2018","sponsor":["SIGWEB, ACM Special Interest Group on Hypertext, Hypermedia, and Web","IW3C2, International World Wide Web Conference Committee"],"acronym":"WWW '18","name":"the 2018 World Wide Web Conference","start":{"date-parts":[[2018,4,23]]},"location":"Lyon, France","end":{"date-parts":[[2018,4,27]]}},"container-title":["Proceedings of the 2018 World Wide Web Conference on World Wide Web - WWW '18"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/3178876.3186037","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/dl.acm.org\/ft_gateway.cfm?id=3186037&ftid=1957440&dwn=1","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T02:27:00Z","timestamp":1750213620000},"score":1,"resource":{"primary":{"URL":"http:\/\/dl.acm.org\/citation.cfm?doid=3178876.3186037"}},"subtitle":["Why Online Knowledge Markets Can Fail at Scale"],"proceedings-subject":"World Wide Web","short-title":[],"issued":{"date-parts":[[2018]]},"references-count":35,"URL":"https:\/\/doi.org\/10.1145\/3178876.3186037","relation":{},"subject":[],"published":{"date-parts":[[2018]]}}}