• Image of Walter S. Lasecki
Ph.D. Candidate, University of Rochester
Visiting Ph.D. Researcher, Carnegie Mellon University
Research Consultant, Google
Email: wlasecki@cs.rochester.edu
Office (CMU): 407 S. Craig St., Pittsburgh PA 15213

About Me

I create systems that use both human and machine computation to solve problems quickly and reliably. I have helped introduce the idea of continuous real-time crowdsourcing, as well as the crowd agent model, which uses computer-mediated groups of people submitting input simultaneously to create a collective intelligence capable of completing tasks better than any constituent member. My work is supported by the National Science Foundation, Google, and a Microsoft Research Graduate Fellowship.

Interests: Crowdsourcing, Human Computation, Human-Computer Interaction, Collective Intelligence, Artificial Intelligence

I am graduating in Spring 2015 and am currently searching for academic/research positions!

CV | Research Statement | Teaching Statement


Selected Publications   [ see the full list ]

Conference and Journal Papers

  1. W.S. Lasecki, J. Kim, N. Rafter, O. Sen, J.P. Bigham, M.S. Bernstein. Apparition: Crowdsourced User Interfaces That Come To Life As You Sketch Them. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2015). Seoul, Korea.
  2. W.S. Lasecki, M. Gordon, W. Leung, E. Lim, J.P. Bigham, and S.P. Dow. Exploring Privacy and Accuracy Trade-Offs in Crowdsourced Behavioral Video Coding. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2015). Seoul, Korea.
  3. W.S. Lasecki, J. Rzeszotarski, A. Marcus, J.P. Bigham. The Effects of Sequence and Delay on Crowd Work. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2015). Seoul, Korea.
  4. G. Laput, W.S. Lasecki, J. Wiese, R. Xiao, J.P. Bigham, C. Harrison. Zensors: Adaptive, Rapidly Deployable, Human-Intelligent Sensor Feeds. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2015). Seoul, Korea.
  5. Y. Zhong,W.S. Lasecki, E. Brady, J.P. Bigham. RegionSpeak: Quick Comprehensive Spatial Descriptions of Complex Images for Blind Users. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2015). Seoul, Korea.
  6. W.S. Lasecki, I. Naim, R. Kushalnagar, A. Sadilek, D. Gildea, and J.P. Bigham. Scribe: Deep Integration of Human and Machine Intelligence to Caption Speech in Real-Time. In Communications of the Association for Computing Machinery (CACM). TBA. 2015.
  7. W.S. Lasecki, M. Gordon, D. Koutra, M.F. Jung, S.P. Dow and J.P. Bigham. Glance: Rapidly Coding Behavioral Video with the Crowd. In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2014). Honolulu, HI. [ Video ]
  8. D. Retelny, S. Robaszkiewicz, A. To, W.S. Lasecki, J. Patel, N. Rahmati, T. Doshi, M. Valentine, and M.S. Bernstein. Expert Crowdsourcing with Flash Teams. In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2014). Honolulu, HI. Best Paper
  9. W.S. Lasecki, C.M. Homan and J.P. Bigham. Architecting Real-Time Crowd-Powered Systems. In Human Computation Journal (HCJournal October, 2014).
  10. W.S. Lasecki, R. Kushalnagar, and J.P. Bigham. Helping Students Keep Up with Real-Time Captions by Pausing and Highlighting. In Proceedings of the International Cross-Disciplinary Conference on Web Accessibility (W4A 2014). Seoul, Korea. Best Technical Paper
  11. W.S. Lasecki, J.P. Bigham. Interactive Crowds: Real-Time Crowdsourcing and Crowd Agents. Chapter In Handbook of Human Computation. 2014. Amazon link: amzn.to/18KLKCK.
  12. Loparev, A., W.S. Lasecki, Murray, K.I. and J.P. Bigham. Introducing Shared Character Control to Existing Video Games. In Proceedings of Foundations of Digital Interactive Games (FDG 2014). Ft. Lauderdale, FL.
  13. W.S. Lasecki and J.P. Bigham. Real-Time Captioning with the Crowd. In ACM Interactions Magazine. May, 2014.
  14. W.S. Lasecki, L. Weingard, G. Ferguson, J.P. Bigham. Finding Dependencies Between Actions Using the Crowd. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2014). Toronto, Canada.
  15. J.P. Bigham, W.S. LaseckiCrowd Storage: Storing Information on Existing Memories. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2014). Toronto, Canada.
  16. W.S. Lasecki, J. Teevan, E. Kamar. Information Extraction and Manipulation Threats in Crowd-Powered Systems. In Proceedings of the International ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW 2014). Baltimore, MD.
  17. R. Kushalnagar, W.S. Lasecki, J.P. Bigham. Accessibility Evaluation of Classroom Captions. In ACM Transactions on Accessibility (TACCESS January, 2014).
  18. W.S. Lasecki, P. Thiha, Y. Zhong, E. Brady, J.P. Bigham. Answering Visual Questions with Conversational Crowd Assistants. In Proceedings of the International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2013). Seattle, WA.
  19. W.S. Lasecki, R. Wesley, J. Nichols, A. Kulkarni, J.F. Allen, J.P. Bigham. Chorus: A Crowd-Powered Conversational Assistant. In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2013). St Andrews, UK.
  20. R. Kushalnagar, W.S. Lasecki, J.P. Bigham. Captions Versus Transcripts for Online Video Content. In Proceedings of the International Cross-Disciplinary Conference on Web Accessibility (W4A 2013). p71-78.
  21. I. Naim, W.S. Lasecki, J.P. Bigham, D. Gildea. Text Alignment for Real-Time Crowd Captioning. In Proceedings of the North American Chapter of the Association for Computational Linguistics (NAACL 2013). Atlanta, GA. p201-210.
  22. W.S. Lasecki, C.D. Miller, J.P. Bigham. Warping Time for More Effective Real-Time Crowdsourcing. In Proceedings of the International ACM Conference on Human Factors in Computing Systems (CHI 2013). Paris, France. p2033-2036. Best Paper Honorable Mention
  23. W.S. Lasecki, Y. Song, H. Kautz, J.P. Bigham. Real-Time Crowd Labeling for Deployable Activity Recognition. In Proceedings of the International ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW 2013). San Antonio, TX. p1203-1212.
  24. W.S. Lasecki, J.P. Bigham. Online Quality Control for Real-time Crowd Captioning. In Proceedings of the International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012). Boulder, CO. p143-150.
  25. R. Kushalnagar, W.S. Lasecki, J.P. Bigham. A Readability Evaluation of Real-Time Crowd Captions in the Classroom. In Proceedings of the International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012). Boulder, CO. p71-78.
  26. W.S. Lasecki, C.D. Miller, A. Sadilek, A. Abumoussa, D. Borrello, R. Kushalnagar, J.P. Bigham.Real-time Captioning by Groups of Non-Experts. In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2012). Boston, MA. p23-34. Best Paper Award Nominee
  27. W.S. Lasecki, S. White, K.I. Murray, J.P. Bigham. Crowd Memory: Learning in the Collective. In Proceedings of Collective Intelligence 2012 (CI 2012). Boston, MA.
  28. W.S. Lasecki, K.I. Murray, S. White, R.C. Miller, J.P. Bigham. Real-time Crowd Control of Existing Interfaces. In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2011). Santa Barbra, CA. p23-32.

Workshops and Demos

  1. G.V. de la Cruz, B. Peng, W.S. Lasecki, M.E. Taylor. Generating Real-Time Crowd Advice to Improve Reinforcement Learning Agents. In Proceedings of the Association for the Advancement of Artificial Intelligence Workshop on Learning for General Competency in Video Games (AAAI 2015). Austin, TX. 2015.
  2. W.S. Lasecki. Crowd-Powered Intelligent Systems. In AAAI Conference on Human Computation Doctoral Consortium (HCOMP 2013). Pittsburgh, PA. 2014.
  3. W.S. Lasecki, M. Gordon, S.P. Dow, J.P. Bigham. Glance: Enabling Rapid Interactions with Data Using the Crowd (full version). In ACM Conference on Human Factors in Computing Systems -- Interactivity (CHI 2014). Toronto, Canada. 2014.
  4. W.S. Lasecki, R. Kushalnagar, J.P. Bigham. Legion Scribe: Real-Time Captioning by Non-Experts. In ACM SIGACCESS Conference on Computers and Accessibility -- Captioning Challenge (ASSETS 2014). Rochester, NY. 2014.
  5. W.S. Lasecki. Powering Interactive Intelligent Systems with the Crowd. In Proceedings of the ACM Symposium on User Interface Science and Technology Doctoral Symposium (UIST 2013). Honolulu, HI. 2014.
  6. W.S. Lasecki, A. Ritter, J.P. Bigham. Powering Spoken Language Interactions with the Crowd (full version).ACM Conference on Human Factors in Computing Systems Workshop on Designing Speech and Language Interactions (DSLI 2014). Toronto, Canada. 2014.
  7. A. Sadilek, C.M. Homan, W.S. Lasecki, V. Silenzio, H. Kautz. Modeling Fine-Grained Dynamics of Mood at ScaleACM Conference on Web Search and Data Mining Workshop on Diffusion Networks and Cascade Analytics. Selected for Oral Presentation. New York, NY. 2014.
  8. W.S. Lasecki, D. Bohus, E. Kamar. Conversations in the Crowd: Collecting Data for Task-Oriented Dialog LearningProceedings of the Human Computation Workshop on Scaling Speech, Language Understanding and Dialogue through Crowdsourcing. Palm Springs, CA. 2013.
  9. W.S. Lasecki, R. Wesley, J. Nichols, A. Kulkarni, J.F. Allen, J.P. Bigham. Chorus: A Crowd-Powered Conversational Assistant. In Proceedings of the ACM Symposium on User Interface Science and Technology -- Demos (UIST 2013). St. Andrews, UK. 2013.
  10. W.S. Lasecki, C.D. Miller, R. Kushalnagar, J.P. Bigham. Legion:Scribe. In ACM SIGACCESS Conference on Computers and Accessibility -- Captioning Challenge (ASSETS 2013). Bellevue, WA. 2013.
  11. W.S. Lasecki. Crowdsourcing for Deployable Intelligent Systems. In Proceedings of the Association for the Advancement of Artificial Intelligence Doctoral Consortium (AAAI 2013). Bellevue, WA. 2013.
  12. W.S. Lasecki, J.P. Bigham. Spoken Control of Existing Mobile Interfaces With the Crowd. In Proceedings of the ACM Conference on Human Factors in Computing Systems Student Research Competition Workshop on Mobile Accessibility (MOBACC 2013). Paris, France. 2013.
  13. W.S. Lasecki, C.D. Miller, R. Kushalnagar, J.P. Bigham. Legion:Scribe. In International Cross-Disciplinary Conference on Web Accessibility -- The Paciello Group Web Accessibility Challenge (W4A 2013). Rio de Janeiro. 2013. Judges Award
  14. W.S. Lasecki, R. Wesley, A. Kulkarni, J.P. Bigham. Speaking With the Crowd. In Proceedings of the ACM Symposium on User Interface Software and Technology -- Demos (UIST 2012). Boston, MA. 2012.
  15. W.S. Lasecki, K.I. Murray, S. White, R.C. Miller, J.P. Bigham. Real-Time Crowd Control of Existing Interfaces. In Proceedings of the ACM Symposium on User Interface Software and Technology -- Demos (UIST 2011). Santa Barbara, CA. 2011.

Full publications list: Publications Page


Selected Press Coverage

New York Times (April, 2013)

MIT Technology Review (March, 2013)

MIT Technology Review (September, 2012)

Gizmodo (July, 2012)

New Scientist (July, 2012)

New York Times (October, 2011)