Schedule and Papers

The 1st Workshop on Social Computing and User Generated Content



Opening remarks

Tracy Xiao Liu, Jiang Yang, Lada A. Adamic, and Yan Chen.  Crowdsourcing with All-pay Contests: a Field Experiment on Taskcn. 

Dawei Shen, Marshall Van Alstyne, and Andrew Lippman.  Barter - Mechanism Design of A Market-incented Wisdom Exchange for Organizations and Communities.

Andrei Villarroel and Filipa Reis.  A stock market approach to online distributed innovation: Exploring the trade-off between speculation and innovation performance.

Mithun Chakraborty, Sanmay Das, and Allen Lavoie, Malik Magdon-Ismail, and Yonatan Naamad.  Instructor Rating Markets.

10:00am-10:30am: Coffee Break


Radu Jurca and Boi Faltings.  Incentives for Answering Hypothetical Questions. 

Jens Witkowski and David C. Parkes.  Peer Prediction with Private Beliefs. 

David Rothschild.  Expectations: Point-Estimates, Probability Distributions, Confidence, and Forecasts.    


11:30am-12:45 pm:

Panel on Crowdsourcing: Todd Carter (Tagasauris), Matt Cooper (oDesk), and Mike Lydon (TopCoder)

12:45pm - 1:45pm:   Lunch Break


1:45pm - 2:45 pm:  

Haoqi Zhang, Eric Horvitz, Yiling Chen, and David C. Parkes.  Task Routing for Prediction Tasks. 

Shuchi Chawla, Jason D. Hartline, and Balasubramanian Sivan.  Optimal Crowdsourcing Contests. 

Shaili Jain and David C. Parkes.  Combinatorial Agency of Threshold Functions.


2:45-3:30 pm:  Invited Talk

Jon Kleinberg. Signed Networks and User Evaluation.

Abstract: Users express opinions about each other in on-line domains for a wide variety of reasons; when these opinions are viewed in aggregate, a pattern of positive and negative relationships emerges that can be analyzed as a network with signs on its links. We discuss a set of models for how positive and negative relationships interact within such networks, based on competing theories for how these signed links should be interpreted. We then describe some analysis of positive and negative relationships in data from on-line social networks, and we use this data to evaluate and extend the underlying theories. The talk draws on joint work with Cristian Danescu-Niculescu-Mizil, Dan Huttenlocher, Bobby Kleinberg, Gueorgi Kossinets, Lillian Lee, Jure Leskovec, Seth Marvel, and Steve Strogatz.