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Alan Ritter

  • Assistant Professor, Computer Science & Engineering
  • 595 Dreese Laboratories
    2015 Neil Ave
    Columbus, OH 43210
  • 614-292-5275


  • May, 2019

    Lumley Research Award.

  • March, 2018

    Outstanding Student Organization Advisor Award.

  • September, 2008-
    September, 2011

    NDSEG Fellowship.

  • February, 2009

    Best Student Paper Award.

  • Lumley Research Award.

Journal Articles


  • *Ji, X.; Ritter, A.; Yen, P-Y., 2017, "Using ontology-based semantic similarity to facilitate the article screening process for systematic reviews." Journal of Biomedical Informatics 69, 33-42 - 33-42.


  • Nakov, P.; Rosenthal, S.; Kiritchenko, S.; Mohammad, S.M. et al., 2016, "Developing a successful SemEval task in sentiment analysis of Twitter and other social media texts." Language Resources and Evaluation 50, 35-65 - 35-65.


  • Ritter, A.; Zettlemoyer, L.; Mausam, ; Etzioni, O., 2013, "Modeling missing data in distant supervision for information extraction." Transactions of the Association for Computational Linguistics 1, 367-378 - 367-378.


Papers in Proceedings


  • *Li, J.; *Monroe, W.; *Shi, T.; Ritter, A. et al. "Adversarial learning for neural dialogue generation." in EMNLP. (1 2017).


  • *Tabassum, J.; Ritter, A.; Xu, W. "Tweetime: A minimally supervised method for recognizing and normalizing time expressions in twitter." in Empirical Methods in Natural Language Processing. (1 2016).
  • Han, B.; Ritter, A.; Derczynski, L.; Xu, W. et al. "Proceedings of the 2nd Workshop on Noisy User-generated Text (WNUT)." (1 2016).
  • *Li, J.; *Monroe, W.; Ritter, A.; Jurafsky, D. et al. "Deep Reinforcement Learning for Dialogue Generation." in EMNLP. (5 2016).


  • Mitchell, T.; Cohen, W.; Hruschka, E.; Pratim Talukdar, P. et al. "Never Ending Learning." in AAAI. (1 2015).
  • *Ji, X.; Machiraju, R.; Ritter, A.; Yen, P-Y. "Examining the Distribution, Modularity, and Community Structure in Article Networks for Systematic Reviews." in AMIA. (1 2015).
  • *Chen, X.; Ritter, A.; Gupta, A.; Mitchell, T. "Sense discovery via co-clustering on images and text." in CVPR. (1 2015).
  • Ritter, A.; Wright, E.; Casey, W.; Mitchell, T. "Weakly supervised extraction of computer security events from twitter." in WWW. (1 2015).
  • Xu, W.; Han, B.; Ritter, A. "Proceedings of the Workshop on Noisy User-generated Text." (1 2015).


  • *Li, J.; Ritter, A.; Hovy, E.H. "Weakly Supervised User Profile Extraction from Twitter.." in ACL. (1 2014).
  • *Li, J.; Ritter, A.; Cardie, C.; Hovy, E.H. "Major Life Event Extraction from Twitter based on Congratulations/Condolences Speech Acts.." in EMNLP. (1 2014).
  • *Betteridge, J.; Ritter, A.; Mitchell, T.M. "Assuming Facts Are Expressed More Than Once.." in FLAIRS. (1 2014).


  • Derczynski, L.; Ritter, A.; Clark, S.; Bontcheva, K. "Twitter Part-of-Speech Tagging for All: Overcoming Sparse and Noisy Data.." (1 2013).


  • Ritter, A.; Mausam, ; Etzioni, O.; Clark, S. "Open domain event extraction from twitter." in KDD. (1 2012).
  • Xu, W.; Ritter, A.; Dolan, B.; Grishman, R. et al. "Paraphrasing for style." in Coling. (1 2012).


  • Ritter, A.; Cherry, C.; Dolan, W.B. "Data-Driven Response Generation in Social Media." in EMNLP. (1 2011).
  • Ritter, A.; Clark, S.; Mausam, ; Etzioni, O. "Named Entity Recognition in Tweets: An Experimental Study." in EMNLP. (1 2011).


  • Ritter, A.; Mausam, ; Etzioni, O. "A latent dirichlet allocation method for selectional preferences." in ACL. (1 2010).
  • Ritter, A.; Cherry, C.; Dolan, B. "Unsupervised modeling of Twitter conversations." in NAACL. (1 2010).
  • Poon, H.; Christensen, J.; Domingos, P.; Etzioni, O. et al. "Machine reading at the University of Washington." (1 2010).


  • Ritter, A.; Soderland, S.; Etzioni, O. "What Is This, Anyway: Automatic Hypernym Discovery.." (1 2009).
  • Ritter, A.; Basu, S. "Learning to generalize for complex selection tasks." in IUI. (1 2009).


  • Ritter, A.; Downey, D.; Soderland, S.; Etzioni, O. "It’s a contradiction—no, it’s not: a case study using functional relations." in EMNLP. (1 2008).


  • Meehan, J.M.; Ritter, A. "Machine Learning Approach to Tuning Distributed Operating System Load Balancing Algorithms.." (1 2006).
  • Ritter, A.L.; Hearne, J.W.; Nelson, P.A. "Distributional Word Clustering in Parallel.." (1 2006).