• Image of Walter S. Lasecki
Assistant Professor, University of Michigan
Director, CROMA Lab
Computer Science & Engineering, EECS (primary)
School of Information
Email: wlasecki@umich.edu
Office: 2636 Beyster
Course: N/A

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.

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






Upcoming Travel

CSCW 2017: Portland, OR, Feb 2017
CHI 2017: Denver, CO, May 2017
Collective Intelligence 2017: New York, NY, June 2017
HCOMP 2017 Program Committee: New York, NY, June 2017
UIST 2017 Program Committee: Pittsburgh, PA, July 2017
MSR Faculty Summit: Seattle, WA, July 2017
University of Piraeus: Athens, Greece, July--August 2017
IBM Research Cognitive Colloquium: Yorktown, NY, September 2017
Bloomberg Seminar: Princeton, NJ, September 2017
UIST 2017: Quebec City, Canada, October 2017
HCOMP 2017: Quebec City, Canada, October 2017
Virginia Tech: Blacksburg, VA, November 2017
Northwestern University: Chicago, IL, January 2018


Selected Publications   [ see the full list ]

Conference and Journal Papers

  1. S.W. Lee, Y. Zhang, I. Wong, Y. Yang, S.D. O'Keefe, W.S. Lasecki. SketchExpress: Remixing Animations For More Effective Crowd-Powered Prototyping Of Interactive Interfaces. In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2017). Quebec City, Canada.
  2. S. Swaminathan, R. Fok, F. Chen, T.K. Huang, I. Lin, R. Jadvani, W.S. Lasecki, J.P. Bigham. WearMail: On-the-Go Access to Information in Your Email with a Privacy-Preserving Human Computation Workflow. In Proceedings of the ACM Symposium on User Interface Software and Technology (UIST 2017). Quebec City, Canada.
  3. H. Kaur, M. Gordon, Y. Yang, J.P. Bigham, J. Teevan, E. Kamar, W.S. Lasecki. CrowdMask: Using Crowds to Preserve Privacy in Crowd-Powered Systems via Progressive Filtering. In Proceedings of the AAAI Conference on Human Computation (HCOMP 2017). Quebec City, Canada.
  4. Y. Jiang, J.K. Kummerfeld, W.S. Lasecki. Understanding Task Design Trade-offs in Crowdsourced Paraphrase Collection. In Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (ACL 2017). Vancouver, Canada.
  5. W.S. Lasecki, C.D. Miller, I. Naim, R. Kushalnagar, A. Sadilek, D. Gildea, 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). To Appear. 2017.
  6. Y. Chen, S.W. Lee, Y. Xie, Y. Yang, W.S. Lasecki, S. Oney. Codeon: On-Demand Software Development Assistance. In Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2017). Denver, CO.
  7. D. Merritt, J. Jones, M.S. Ackerman, W.S. LaseckiKurator: Using The Crowd to Help Families With Personal Curation Tasks . In Proceedings of the International ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW 2017). Portland, OR.
  8. T. Huang, W.S. Lasecki, A. Azaria, J.P. Bigham. "Is there anything else I can help you with?": Challenges in Deploying an On-Demand Crowd-Powered Conversational Agent. In Proceedings of the AAAI Conference on Human Computation (HCOMP 2016). Austin, TX.
  9. Y. Gaur, W.S. Lasecki, F. Metze, J.P. Bigham. The Effects of Automatic Speech Recognition Quality on Human Transcription Latency. In Proceedings of the International Cross-Disciplinary Conference on Web Accessibility (W4A 2016). Montreal, Canada. Best Paper
  10. J.J. Williams, J. Kim, E.L. Glassman, A. Rafferty, W.S. LaseckiMaking Static Lessons Adaptive through Crowdsourcing & Machine Learning. Chapter in Design Recommendations for Intelligent Tutoring Systems: Domain Modeling (Volume 4). 2016.
  11. Y. Chen, S. Oney, W.S. Lasecki. Towards Providing On-Demand Expert Support for Software Developers. In Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2016). San Jose, CA.
  12. J.J. Williams, J. Kim, A. Rafferty, S. Maldonado, K. Gajos, W.S. Lasecki, N. Heffernan. AXIS: Generating Explanations at Scale with Learnersourcing and Machine Learning. In Proceedings of the ACM Conference on Learning at Scale (L@S 2016). Edinburgh, UK. Best Paper Honorable Mention
  13. J.P. Bigham, W.S. Lasecki, J.O. Wobbrock. Target Acquisition and the Crowd Actor. In Human Computation Journal (HCJournal). 2(2). 2015.
  14. T. Huang, W.S. Lasecki, J.P. Bigham. Guardian: A Crowd-Powered Spoken Dialogue System for Web APIs. In Proceedings of the AAAI Conference on Human Computation (HCOMP 2015). San Diego, CA.
  15. W.S. Lasecki, L. Rello, J.P. Bigham. Measuring Text Simplification with the Crowd. In Proceedings of the International Cross-Disciplinary Conference on Web Accessibility (W4A 2015). Florence, Italy.
  16. 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. p1925-1934. Best Paper Honorable Mention
  17. W.S. Lasecki, M. Gordon, W. Leung, E. Lim, J.P. Bigham, 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. p1945-1954.
  18. 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.
  19. 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. p1935-1944.
  20. 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. p2353-2362.
  21. W.S. Lasecki, M. Gordon, D. Koutra, M.F. Jung, S.P. Dow, 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. p551-562. [ Video ]
  22. D. Retelny, S. Robaszkiewicz, A. To, W.S. Lasecki, J. Patel, N. Rahmati, T. Doshi, M. Valentine, 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
  23. W.S. Lasecki, C.M. Homan, J.P. Bigham. Architecting Real-Time Crowd-Powered Systems. In Human Computation Journal (HCJournal October, 2014).
  24. W.S. Lasecki, R. Kushalnagar, 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
  25. 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.
  26. Loparev, A., W.S. Lasecki, Murray, K.I., J.P. Bigham. Introducing Shared Character Control to Existing Video Games. In Proceedings of Foundations of Digital Interactive Games (FDG 2014). Ft. Lauderdale, FL.
  27. W.S. Lasecki, J.P. Bigham. Real-Time Captioning with the Crowd. In ACM Interactions Magazine. May, 2014.
  28. 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.
  29. 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.
  30. 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.
  31. R. Kushalnagar, W.S. Lasecki, J.P. Bigham. Accessibility Evaluation of Classroom Captions. In ACM Transactions on Accessibility (TACCESS January, 2014).
  32. 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. Article #18.
  33. 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. p151-162.
  34. 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.
  35. 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.
  36. 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
  37. 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.
  38. 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.
  39. 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.
  40. 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. Best Paper Award Nominee
  41. 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.
  42. 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 Barbara, CA. p23-32.

Workshops and Demos

  1. J.Y. Song, R. Fok, F. Yang, K. Wang, A.R. Lundgard, W.S. Lasecki. Tool Diversity as a Means of Improving Aggregate Crowd Performance on Image Segmentation Tasks. In HCOMP Workshop on Human Computation for Image and Video Analysis (GroupSight 2017). Quebec City, Quebec. 2017. To appear.
  2. J.P. Bigham, W.S. Lasecki, C. Kulkarni. Crowdsourcing and Crowd Work. ACM Conference on Human Factors in Computing Systems Courses (CHI Courses 2017). Denver, CO. 2017.
  3. S.W. Lee, Y. Yang, S. Yan, Y. Zhang, I. Wong, Z. Tan, M. McGruder, C.M. Homan, W.S. Lasecki. Creating Interactive Behaviors in Early Sketch by Recording and Remixing Crowd Demonstrations. In AAAI Conference on Human Computation Demos (HCOMP 2016). Austin, TX. 2016.
  4. S. Gouravajhala, D. Koutra, W.S. Lasecki. Towards Crowd-Assisted Data Mining. In CHI Workshop on Human Centred Machine Learning (HCML 2016). San Jose, CA. 2016.
  5. Y. Chen, S. Oney, W.S. Lasecki. Towards software development microtasks. In CHI Workshop on Productivity Decomposed: Getting Big Things Done with Little Microtasks. San Jose, CA. 2016.
  6. J. Yim, W. Leung, J. Jasani, E. Lim, A.M. Henderson, M. Gordon, D. Koutra, J.P. Bigham, S.P. Dow, W.S. Lasecki. Coding Varied Behavior Types Using the Crowd. In ACM Conference on Computer Supported Cooperative Work and Social Computing Demos (CSCW 2016). San Fransisco, CA. 2016.
  7. W.S. Lasecki, J. Teevan, E. Kamar. The Cost of Asking Crowd Workers to Behave Maliciously. In AAMAS 2015 Workshop on Human-Agent Interaction Design and Models (HAIDM 2015). Istanbul, Turkey. 2015.
  8. W.S. Lasecki, M. Gordon, J. Teevan, E. Kamar, J.P. Bigham. Preserving Privacy in Crowd-Powered Systems. In AAMAS 2015 Workshop on Human-Agent Interaction Design and Models (HAIDM 2015). Istanbul, Turkey. 2015.
  9. 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.
  10. W.S. Lasecki. Crowd-Powered Intelligent Systems. In AAAI Conference on Human Computation Doctoral Consortium (HCOMP 2013). Pittsburgh, PA. 2014.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. 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
  22. 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.
  23. 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)

Teaching

Social Computing Systems (EECS 498) -- Winter 2017
User Interface Development (EECS 493) -- Fall 2016
Social Computing Systems (EECS 498) -- Winter 2016

Crowdsourcing and Human Computation Systems (EECS 598) -- Fall 2015