Per Ola Kristensson | Publications

[ACM Author Page] [DBLP Bibliography Entry] [HCIbib Entry] [Google Scholar Search]

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.

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 '10). ACM Press: 35-40. Acceptance rate: 29%. (pdf)
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 '10). AAAI Press: 1698-1701. Acceptance rate: 25%. (pdf) (youtube video)
23. Kristensson, P.O. 2009. Five challenges for intelligent text entry methods. AI Magazine 30(4): 85-94. (pdf)
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 '09). IEEE Press: 130-135. Acceptance rate: 42%. (pdf)
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 '09). ISCA: 1863-1866. Acceptance rate: 57.7%. (pdf) (youtube video)
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)
19. 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 '09). (Special Interest Group Meeting). ACM Press: 2743-2746. (pdf)
18. 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 '09). (Design Practice). ACM Press: 2667-2670. (pdf)
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 '09). ACM Press: 567-570. Acceptance rate: 24.5%. (pdf)
16. 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 '09). (Demonstration). ACM Press: 483-484. (pdf) (youtube video)
15. 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 '09). ACM Press: 237-246. Acceptance rate: 29%. (pdf) (youtube video)
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 information visualization interface for tagged photo collections. In Proceedings of the 5^th Nordic Conference on Human-Computer Interaction (NordiCHI '08). ACM Press: 491-494. Acceptance rate: 34%. Selected for oral presentation (12 / 39 = 30.8%). (pdf) (youtube video)
13. 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 '08). ACM Press: 1497-1500. Acceptance rate: 18%. (pdf) (youtube video)
12. 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 '08). ACM Press: 593-596. Acceptance rate: 18%. (pdf)
11. 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 '08). ACM Press: 353-356. Acceptance rate: 15%. (pdf)
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 IEEE International Conference on Pervasive Computing and Applications (ICPCA '07). IEEE Press: 515-520. (pdf)
9. 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 '07). (Interactivity). ACM Press: 1971-1976. Acceptance rate: 40%. (pdf) (youtube video)
8. 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 '07). ACM Press: 1137-1146. Acceptance rate: 24%. (pdf) (youtube video) This paper presents the command entry feature in ShapeWriter
7. 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 '07). ACM Press: 1571-1580. Acceptance rate: 24%. (pdf)
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.
5. 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 '05). (Doctoral Consortium). ACM Press: 1120-1121. Acceptance rate: 22%. Best doctoral consortium contribution award (1/16 = 6.25%). (pdf) (slides)
4. 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 '05). ACM Press: 151-158. Acceptance rate: 22%. (pdf) (youtube video)
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)
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 '04). ACM Press: 43-52. Acceptance rate: 20%. This paper presents ShapeWriter as it is known today (pdf) (youtube video)
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 '03). ACM Press: 97-104. Acceptance rate: 16%. (pdf)

Patents

5. U.S. Design Patent D614,645
4. U.S. Design Patent D614,644
3. U.S. Design Patent D591,307
2. U.S. Patent 7,706,616
1. 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

• Prof. Andy Cockburn, University of Canterbury, New Zealand
• Prof. Nils Dahlbäck, Linköping University, Sweden
• Dr Keith Vertanen, University of Cambridge, United Kingdom
• Dr Shumin Zhai, IBM Almaden Research Center, USA