Per Ola Kristensson | Publications

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If you need a paper that isn't available below, just drop me an email and I'll be happy to send you a copy.

37. Kristensson, P.O. and Vertanen, K. 2012. The potential of dwell-free eye-typing for fast assistive gaze communication. In Proceedings of the 7^th ACM Symposium on Eye-Tracking Research & Applications (ETRA 2012). ACM Press: forthcoming. (pdf) (publisher) (youtube)
36. Kristensson, P.O., Nicholson, T.F.W. and Quigley, A. 2012. Continuous recognition of one-handed and two-handed gestures using 3D full-body motion tracking sensors. In Proceedings of the 17^th ACM International Conference on Intelligent User Interfaces (IUI 2012). ACM Press: forthcoming. (pdf) (publisher) (youtube) (source code)
35. Kristensson, P.O. and Vertanen, K. 2012. Performance comparisons of phrase sets and presentation styles for text entry evaluations. In Proceedings of the 17^th ACM International Conference on Intelligent User Interfaces (IUI 2012). ACM Press: forthcoming. (pdf) (publisher)
34. Coyle, D., Moore, J., Kristensson, P.O., Fletcher, P. and Blackwell, A. 2012. I did that! Measuring users' experience of agency in their own actions. In Proceedings of the 30^th ACM Conference on Human Factors in Computing Systems (CHI 2012). ACM Press: forthcoming. (pdf) (publisher)
33. Kristensson, P.O, Clawson, J., Dunlop, M., Isokoski, P., Roark, B., Vertanen, K., Waller, A. and Wobbrock, J.O. 2012. Designing and evaluating text entry methods. In Extended Abstracts of the 30^th ACM Conference on Human Factors in Computing Systems (CHI 2012). (Workshops). ACM Press: forthcoming. (pdf) (publisher) (website)
32. Kristensson, P.O. and Denby, L.C. 2011. Continuous recognition and visualization of pen strokes and touch-screen gestures. In Proceedings of the 8^th Eurographics Symposium on Sketch-Based Interfaces and Modeling (SBIM 2011). ACM Press: 95-102. (pdf) (publisher) (source code)
31. Kristensson, P.O. and Vertanen, K. 2011. Asynchronous multimodal text entry using speech and gesture keyboards. In Proceedings of the 12^th Annual Conference of the International Speech Communication Association (Interspeech 2011). ISCA: 581-584. (pdf) (publisher)
30. Vertanen, K. and Kristensson, P.O. 2011. The imagination of crowds: conversational AAC language modeling using crowdsourcing and large data sources. In Proceedings of the ACL Conference on Empirical Methods in Natural Language Processing (EMNLP 2011). ACL: 700-711. (pdf) (publisher) (resources)
29. Vertanen, K. and Kristensson, P.O. 2011. A versatile dataset for text entry evaluations based on genuine mobile emails. In Proceedings of the 13^th ACM International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI 2011). ACM Press: 295-298. (pdf) (publisher) (resources)
28. Kristensson, P.O. 2011. Design dimensions of intelligent text entry tutors. In Proceedings of the 15^th International Conference on Artificial Intelligence in Education (AIED 2011). Lecture Notes in Artificial Intelligence (vol. 6738), Springer: 494-496. (pdf) (publisher)
27. Jameson, A., Gabrielli, S., Kristensson, P.O., Reinecke, K., Cena, F., Gena, C. and Vernero, F. 2011. How can we support users' preferential choice? In Extended Abstracts of the 29^th ACM Conference on Human Factors in Computing Systems (CHI 2011). (alt.chi). ACM Press: 409-418. (pdf) (publisher)
26. Vertanen, K. and Kristensson, P.O. 2010. Getting it right the second time: recognition of spoken corrections. In Proceedings of the 3^rd IEEE Workshop on Spoken Language Technology (SLT 2010). IEEE Press: 277-282. (pdf) (publisher)
25. Bray, Z. and Kristensson, P.O. 2010. Using ensembles of decision trees to automate repetitive tasks in web applications. In Proceedings of the 2^nd ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2010). ACM Press: 35-40. (pdf) (publisher)
24. Vertanen, K. and Kristensson, P.O. 2010. Intelligently aiding human-guided correction of speech recognition. In Proceedings of the 24^th AAAI Conference on Artificial Intelligence (AAAI 2010). AAAI Press: 1698-1701. (pdf) (publisher) (youtube)
23. Kristensson, P.O. 2009. Five challenges for intelligent text entry methods. AI Magazine 30(4): 85-94. (pdf) (publisher)
22. Vertanen, K. and Kristensson, P.O. 2009. Automatic selection of recognition errors by respeaking the intended text. In Proceedings of the 11^th Biannual IEEE Workshop on Automatic Speech Recognition and Understanding (ASRU 2009). IEEE Press: 130-135. (pdf) (publisher)
21. Vertanen, K. and Kristensson, P.O. 2009. Recognition and correction of voice web search queries. In Proceedings of the 10^th Annual Conference of the International Speech Communication Association (Interspeech 2009). ISCA: 1863-1866. (pdf) (publisher) (youtube)
20. Kristensson, P.O., Dahlbäck, N., Anundi, D., Björnstad, M., Gillberg, H., Haraldsson, J., Mårtensson, I., Nordvall, M. and Ståhl, J. 2009. An evaluation of space time cube representation of spatiotemporal patterns. IEEE Transactions on Visualization and Computer Graphics 15(4): 696-702. (pdf) (publisher)
19. Vertanen, K. and Kristensson, P.O. 2009. Parakeet: a continuous speech recognition system for mobile touch-screen devices. In Proceedings of the 14^th ACM International Conference on Intelligent User Interfaces (IUI 2009). ACM Press: 237-246. (pdf) (publisher) (youtube)
18. Vertanen, K. and Kristensson, P.O. 2009. Parakeet: a demonstration of speech recognition on a mobile touch-screen device. In Proceedings of the 14^th ACM International Conference on Intelligent User Interfaces (IUI 2009). (Demonstration). ACM Press: 483-484. (pdf) (publisher) (youtube)
17. Kristensson, P.O. and Denby, L.C. 2009. Text entry performance of state of the art unconstrained handwriting recognition: a longitudinal user study. In Proceedings of the 27^th ACM Conference on Human Factors in Computing Systems (CHI 2009). ACM Press: 567-570. (pdf) (publisher)
16. Spaulding, A., Gajos, K.Z., Jamesson, A., Kristensson, P.O., Bunt, A. and Haines, W. 2009. Usable intelligent interactive systems. In Extended Abstracts of the 27^th ACM Conference on Human Factors in Computing Systems (CHI 2009). (Special Interest Group Meeting). ACM Press: 2743-2746. (pdf) (publisher)
15. Zhai, S., Kristensson, P.O., Gong, P., Greiner, M., Peng, S. and Liu, M. 2009. ShapeWriter on the iPhone - from the laboratory to the real world. In Extended Abstracts of the 27^th ACM Conference on Human Factors in Computing Systems (CHI 2009). (Design Practice). ACM Press: 2667-2670. (pdf) (publisher)
14. Kristensson, P.O., Arnell, O., Björk, A., Dahlbäck, N., Pennerup, J., Prytz, E., Wikman, J. and Åström, N. 2008. InfoTouch: an explorative multi-touch visualization interface for tagged photo collections. In Proceedings of the 5^th Nordic Conference on Human-Computer Interaction (NordiCHI 2008). ACM Press: 491-494. (pdf) (publisher) (youtube)
13. Kristensson, P.O. and Zhai, S. 2008. Improving word-recognizers using an interactive lexicon with active and passive words. In Proceedings of the 13^th ACM International Conference on Intelligent User Interfaces (IUI 2008). ACM Press: 353-356. (pdf) (publisher)
12. Vertanen, K. and Kristensson, P.O. 2008. On the benefits of confidence visualization in speech recognition. In Proceedings of the 26^th ACM Conference on Human Factors in Computing Systems (CHI 2008). ACM Press: 1497-1500. (pdf) (publisher) (youtube)
11. Zhai, S. and Kristensson, P.O. 2008. Interlaced QWERTY - accommodating ease of visual search and input flexibility in shape writing. In Proceedings of the 26^th ACM Conference on Human Factors in Computing Systems (CHI 2008). ACM Press: 593-596. (pdf) (publisher)
10. Sylverberg, T., Kristensson, P.O., Leifler, O. and Berglund, E. 2007. Drawing on paper maps: reliable on-line symbol recognition of handwritten symbols using a digital pen and a mobile phone. In Proceedings of the 2^nd International Conference on Pervasive Computing and Applications (ICPCA 2007). IEEE Press: 515-520. (pdf) (publisher)
9. Kristensson, P.O. and Zhai, S. 2007. Command strokes with and without preview: using pen gestures on keyboard for command selection. In Proceedings of the 25^th ACM Conference on Human Factors in Computing Systems (CHI 2007). ACM Press: 1137-1146. (pdf) (publisher) (youtube)
8. Cockburn, A., Kristensson, P.O., Alexander, J. and Zhai, S. 2007. Hard lessons: effort-inducing interfaces benefit spatial learning. In Proceedings of the 25^th ACM Conference on Human Factors in Computing Systems (CHI 2007). ACM Press: 1571-1580. (pdf) (publisher)
7. Kristensson, P.O. and Zhai, S. 2007. Learning shape writing by game playing. In Extended Abstracts of the 25^th ACM Conference on Human Factors in Computing Systems (CHI 2007). (Interactivity). ACM Press: 1971-1976. (pdf) (publisher) (youtube)
6. Zhai, S. and Kristensson, P.O. 2007. Introduction to shape writing. In MacKenzie, I.S. and Tanaka-Ishii, K. (Eds.), Text Entry Systems. San Francisco: Morgan Kauffman, 139-158. Invited. (publisher)
5. Kristensson, P.O. and Zhai, S. 2005. Relaxing stylus typing precision by geometric pattern matching. In Proceedings of the 10^th ACM International Conference on Intelligent User Interfaces (IUI 2005). ACM Press: 151-158. (pdf) (publisher) (youtube)
4. Kristensson, P.O. 2005. Breaking the laws of action in the user interface. In Extended Abstracts of the 23^rd ACM Conference on Human Factors in Computing Systems (CHI 2005). (Doctoral Consortium). ACM Press: 1120-1121. Best doctoral consortium contribution award. (pdf) (publisher) (slides)
3. Zhai, S., Kristensson, P.O. and Smith, B.A. 2005. In search of effective text input interfaces for off the desktop computing. Interacting with Computers 17(3): 229-250. Invited. (pdf) (publisher)
2. Kristensson, P.O. and Zhai, S. 2004. SHARK²: a large vocabulary shorthand writing system for pen-based computers. In Proceedings of the 17^th Annual ACM Symposium on User Interface Software and Technology (UIST 2004). ACM Press: 43-52. (pdf) (publisher) (youtube)
1. Zhai, S. and Kristensson, P.O. 2003. Shorthand writing on stylus keyboard. In Proceedings of the 21^st ACM Conference on Human Factors in Computing Systems (CHI 2003). ACM Press: 97-104. (pdf) (publisher)

Patents

6. Kristensson, P.O. U.S. Patent 7,895,518.
5. Kristensson, P.O. and Zhai, S. U.S. Design Patent D614,645.
4. Kristensson, P.O. and Zhai, S. U.S. Design Patent D614,644.
4. Kristensson, P.O., Wang, J. and Zhai, S. U.S. Patent 7,706,616.
2. Kristensson, P.O. and Zhai, S. U.S. Design Patent D591,307.
1. Zhai, S. and Kristensson, P.O. U.S. Patent 7,487,461.

Theses

• Kristensson, P.O. 2007. Discrete and Continuous Shape Writing for Text Entry and Control. Doctoral dissertation, Linköping University, Sweden. ISBN 978-91-85831-77-7. (Monograph; 200 pages). (pdf) (press coverage)
• Kristensson, P.O. 2004. Large Vocabulary Shorthand Writing on Stylus Keyboard. Licentiate thesis, Linköping University, Sweden. ISBN 91-85295-76-0. (Collection of papers; 88 pages).
• Kristensson, P.O. 2002. Design and Evaluation of a Shorthand-Aided Soft Keyboard. Final/master's thesis (D-Uppsats), Linköping University, Sweden. ISRN LiU-KOGVET-D--02/07--SE. (Monograph; 96 pages).

Co-authors with a web presence

• Dr Alan Blackwell, University of Cambridge, UK
• Prof. Andy Cockburn, University of Canterbury, New Zealand
• Dr David Coyle, formerly University of Cambridge, now University of Bristol, UK
• Prof. Nils Dahlbäck, Linköping University, Sweden
• Dr Anthony Jameson, German Research Center for Artificial Intelligence, Germany
• Dr Keith Vertanen, formerly University of Cambridge and Princeton University, now Montana Tech of the University of Montana, USA
• Dr Shumin Zhai, formerly IBM Almaden Research Center, now Google, USA