Peer-Reviewed Journal Publications

• An Equivalence Between Fair Division and Wagering Mechanisms (PDF)
  Rupert Freeman*, Jens Witkowski*, Jennifer Wortman Vaughan, and David Pennock
  Management Science. Forthcoming. *equal contribution

• Crowd Prediction Systems: Markets, Polls, and Elite Forecasters (PDF)
  Pavel Atanasov, Jens Witkowski, Barbara Mellers, and Philip Tetlock
  International Journal of Forecasting. Forthcoming. Supersedes the EC’22 paper below.

• Incentive-Compatible Forecasting Competitions (PDF)
  Jens Witkowski, Rupert Freeman, Jennifer Wortman Vaughan, David Pennock, and Andreas Krause
  Management Science. vol. 69, issue 3, pp 1354–1374, March 2023. Supersedes the AAAI’18 paper below.

• Small steps to accuracy: Incremental belief updaters are better forecasters (PDF)
  Pavel Atanasov, Jens Witkowski, Lyle Ungar, Barbara Mellers, and Philip Tetlock
  Organizational Behavior and Human Decision Processes (OBHDP). vol. 160, pp 19–35, September 2020. Supersedes the EC’20 paper below. 

• A Geometric Perspective on Minimal Peer Prediction (PDF)
  Rafael Frongillo and Jens Witkowski
  ACM Transactions on Economics and Computation (TEAC). vol. 5, issue 3, pp 17:1–17:27, August 2017. Supersedes the AAAI’16 paper below.

Peer-Reviewed Conference Publications

• Crowd Prediction Systems: Markets, Polls, and Elite Forecasters (PDF)
  Pavel Atanasov, Jens Witkowski, Barbara Mellers, and Philip Tetlock
  In Proceedings of the 23rd ACM Conference on Economics and Computation (EC’22). pp 1013–1014, July 2022. Superseded by the International Journal of Forecasting paper above. Acceptance rate: 27%

• Small Steps to Accuracy: Incremental Belief Updaters Are Better Forecasters (PDF)
  Pavel Atanasov, Jens Witkowski, Lyle Ungar, Barbara Mellers, and Philip Tetlock
  In Proceedings of the 21st ACM Conference on Economics and Computation (EC’20), pp 873–874, July 2020. Superseded by the OBHDP paper above. Acceptance rate: 20%

• Incentive-Compatible Forecasting Competitions (PDF)
  Jens Witkowski, Rupert Freeman, Jennifer Wortman Vaughan, David Pennock, and Andreas Krause
  In Proceedings of the 32nd AAAI Conference on Artificial Intelligence (AAAI’18), pp 1282–1289, February 2018. Superseded by the Management Science paper above. Acceptance rate: 25%

• Proper Proxy Scoring Rules (PDF)
  Jens Witkowski, Pavel Atanasov, Lyle H. Ungar, and Andreas Krause
  In Proceedings of the 31st AAAI Conference on Artificial Intelligence (AAAI’17), pp 743–749, February 2017. Acceptance rate: 25%

• A Geometric Method to Construct Minimal Peer Prediction Mechanisms (PDF)
  Rafael Frongillo and Jens Witkowski
  In Proceedings of the 30th AAAI Conference on Artificial Intelligence (AAAI’16), pp 502–508, February 2016. Superseded by the TEAC paper above. Acceptance rate: 26%

• Dwelling on the Negative: Incentivizing Effort in Peer Prediction (PDF)
  Jens Witkowski, Yoram Bachrach, Peter Key, and David C. Parkes
  In Proceedings of the 1st AAAI Conference on Human Computation & Crowdsourcing (HCOMP’13), pp 190–197, November 2013. Acceptance rate: 30%

• A Robust Bayesian Truth Serum for Small Populations (PDF)
  Jens Witkowski and David C. Parkes
  In Proceedings of the 26th AAAI Conference on Artificial Intelligence (AAAI’12), pp 1492–1498, July 2012. Acceptance rate: 26%

• Peer Prediction without a Common Prior (PDF)
  Jens Witkowski and David C. Parkes
  In Proceedings of the 13th ACM Conference on Electronic Commerce (EC’12), pp 964–981, June 2012. Acceptance rate: 33%

• Incentive-Compatible Escrow Mechanisms (PDF)
  Jens Witkowski, Sven Seuken, and David C. Parkes
  In Proceedings of the 25th AAAI Conference on Artificial Intelligence (AAAI’11), pp 751–757, August 2011. Acceptance rate: 25%

• Truthful Feedback for Sanctioning Reputation Mechanisms (PDF)
  Jens Witkowski
  In Proceedings of the 26th Conference on Uncertainty in Artificial Intelligence (UAI’10), pp 658–665, July 2010. Acceptance rate: 34%

• Eliciting Honest Reputation Feedback in a Markov Setting (PDF)
  Jens Witkowski
  In Proceedings of the 21st International Joint Conference on Artificial Intelligence (IJCAI’09), pp 330–335, July 2009. Acceptance rate: 26%

Lightly Reviewed Workshop Papers

• Learning the Prior in Minimal Peer Prediction (PDF)
  Jens Witkowski and David C. Parkes
  In 3rd Workshop on Social Computing and User Generated Content, June 2013.

Thesis

• Robust Peer Prediction Mechanisms
  Jens Witkowski
  Ph.D. Thesis, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany, 2014. (PDF)