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Orkut Buyukkokten

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Orkut Buyukkokten

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Publications by Orkut Buyukkokten (bibliography)

» 2003 «

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Adamic, Lada A., Buyukkokten, Orkut and Adar, Eytan (2003): A social network caught in the Web. In First Monday, 8 (6)

» 2002 «

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Hughes, Dominic, Warren, James and Buyukkokten, Orkut (2002): Empirical Bi-Action Tables: A Tool for the Evaluation and Optimization of Text Input Systems. Application I: Stylus Keyboards. In Human-Computer Interaction, 17 (2) pp. 271-309

“We introduce a technique that, given any text input system A and novice user u, will predict the peak expert input speed of u on A, avoiding the costly process of actually training u to expert level. Here, peak refers to periods of ideal performance, free from hesitation or concentration lapse, and expert refers to asymptotic competence (e.g., touch typing, in the case of a two-handed keyboard). The technique is intended as a feedback mechanism in the interface development cycle between abstract mathematical modeling at the start (Fitts' law, Hick's law, etc.) and full empirical testing at the end. The utility of the technique in iterative design is contingent on what we call the monotonicity principle: For each user u, if our prediction of peak expert input speed for u is higher on system A than on system B, continuous text input by u after training to expert level will be faster on A than on B. Here, continuous refers to actual real-world use, subject to errors, physical fatigue, lapses of concentration, and so forth. We discuss the circumstances under which monotonicity is valid. The technique is parametric in the character map-that is, in the map from actions (keystrokes, gestures, chords, etc.) to characters. Therefore, standard heuristic algorithms can be employed to search for optimal character maps (e.g., keyboard layouts). We illustrate the use of our technique for evaluation and optimization in the context of stylus keyboards, first benchmarking a number of stylus keyboards relative to a simple alphabetic layout and then implementing an ant algorithm to obtain a machine-optimized layout.”

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Buyukkokten, Orkut, Kaljuvee, Oliver, Garcia-Molina, Hector, Paepcke, Andreas and Winograd, Terry (2002): Efficient web browsing on handheld devices using page and form summarization. In ACM Transactions on Information Systems, 20 (1) pp. 82-115

“We present a design and implementation for displaying and manipulating HTML pages on small handheld devices such as personal digital assistants (PDAs), or cellular phones. We introduce methods for summarizing parts of Web pages and HTML forms. Each Web page is broken into text units that can each be hidden, partially displayed, made fully visible, or summarized. A variety of methods are introduced that summarize the text units. In addition, HTML forms are also summarized by displaying just the text labels that prompt the use for input. We tested the relative performance of the summarization methods by asking human subjects to accomplish single-page information search tasks. We found that the combination of keywords and single-sentence summaries provides significant improvements in access times and number of required pen actions, as compared to other schemes. Our experiments also show that our algorithms can identify the appropriate labels for forms in 95% of the cases, allowing effective form support for small screens.”

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» 2001 «

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Buyukkokten, Orkut, Garcia-Molina, Hector and Paepcke, Andreas (2001): Accordion Summarization for End-Game Browsing on PDAs and Cellular Phones. In: Beaudouin-Lafon, Michel and Jacob, Robert J. K. (eds.) Proceedings of the ACM CHI 2001 Human Factors in Computing Systems Conference March 31 - April 5, 2001, Seattle, Washington, USA. pp. 213-220. Available online

“We demonstrate a new browsing technique for devices with small displays such as PDAs or cellular phones. We concentrate on end-game browsing, where the user is close to or on the target page. We make browsing more efficient and easier by Accordion Summarization. In this technique the Web page is first represented as a short summary. The user can then drill down to discover relevant parts of the page. If desired, keywords can be highlighted and exposed automatically. We discuss our techniques, architecture, interface facilities, and the result of user evaluations. We measured a 57% improvement in browsing speed and 75% reduction in input effort.”

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Buyukkokten, Orkut, Garcia-Molina, Hector and Paepcke, Andreas (2001): Seeing the whole in parts: text summarization for web browsing on handheld devices. In: Proceedings of the 2001 International Conference on the World Wide Web 2001. pp. 652-662. Available online

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Kaljuvee, Oliver, Buyukkokten, Orkut, Garcia-Molina, Hector and Paepcke, Andreas (2001): Efficient Web form entry on PDAs. In: Proceedings of the 2001 International Conference on the World Wide Web 2001. pp. 663-672. Available online

» 2000 «

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Buyukkokten, Orkut, Garcia-Molina, Hector, Paepcke, Andreas and Winograd, Terry (2000): Power Browser: Efficient Web Browsing for PDAs. In: Turner, Thea, Szwillus, Gerd, Czerwinski, Mary, Peterno, Fabio and Pemberton, Steven (eds.) Proceedings of the ACM CHI 2000 Human Factors in Computing Systems Conference April 1-6, 2000, The Hague, The Netherlands. pp. 430-437. Available online

“We have designed and implemented new Web browsing facilities to support effective navigation on Personal Digital Assistants (PDAs) with limited capabilities: low bandwidth, small display, and slow CPU. The implementation supports wireless browsing from 3Corn's Palm Pilot. An HTTP proxy fetches web pages on the client's behalf and dynamically generates summary views to be transmitted to the client. These summaries represent both the link structure and contents of a set of web pages, using information about link importance. We discuss the architecture, user interface facilities, and the results of comparative performance evaluations. We measured a 45% gain in browsing speed, and a 42% reduction in required pen movements.”

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Changes to this page (author)

14 Feb 2010: Enabled abstracts to be shown on Orkut Buyukkokten's author page.
09 Jul 2009: Author was edited

09 Jul 2009: Author was edited
05 Jul 2009: Added a picture of Orkut Buyukkokten
05 Jul 2009: Added a picture of Orkut Buyukkokten
05 Jul 2009: An editor rejected a request to change information
31 May 2009: Author was edited
28 Apr 2003: Added the author to the bibliography

Publication statistics

Publication period:2000-2003
Publication count:7
Number of co-authors:8

Productive colleagues

Orkut Buyukkokten's 3 most productive colleagues in number of publications:

Terry Winograd:56
Hector Garcia-Molina:42
Andreas Paepcke:38

Collaboration count

Number of publications with 3 favourite co-authors:

Hector Garcia-Molina:5
Andreas Paepcke:5
Oliver Kaljuvee:2

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Learn more about Orkut Buyukkokten:
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Conference Calendar

Mar 22

UX People

Mar 22

ETRA '10 - Eye Tracking Research & Applications Symp.

Mar 22

Workshop on Pervasive healthcare in the home : Supporting patient motivation and engagement

Mar 21

“ Software design is the act of determining the user's experience with a piece of software. It has nothing to do with how the code works inside, or how big or small the code is. The designer's task is to specify completely and unambiguously the user's whole experience. ”

-- David Liddle, From Bringing Design to Software, edited by Terry Winograd, 1996 ”

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Orkut Buyukkokten

Publications by Orkut Buyukkokten (bibliography)

» 2003 «

» 2002 «

» 2001 «

» 2000 «

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Changes to this page (author)

Publication statistics

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Conference Calendar

Eva Hornecker on Tangible Interaction

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