Shengdong Zhao
Ph.D. Candidate, Computer Science
Interactive Media Lab (IML)
Dynamic Graphics Project Lab (DGP)
University of Toronto
Toronto, Ontario, Canada
Phone: (416) 978-7581
Email: shengdong.zhao (at) gmail (dot) com   

Ken Hinckley, Shengdong Zhao, Raman Sarin, Patrick Baudisch, Edward Cutrell, Michael Shilman, Desney Tan (2007). InkSeine: In Situ Search for Active Note Taking. Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI). pp. 251-260.

• Summary: Prototype that supports active note taking by coupling a pen-and-ink interface with an in situ search facility that flows directly from a user’s ink notes.
• movie (52 MB wma, 720x480, 29.970 fps, 3:45)
• PPT slides of my presentation at CHI 2007 (Joint presentation with Ed Cutrell)
• Chi Madness Slides
• InkSeine homepage

 

Shengdong Zhao, Pierre Dragicevic, Mark H. Chignell, Ravin Balakrishnan, Patrick Baudisch (2007). earPod: Eyes-free Menu Selection with Touch Input and Reactive Audio Feedback. Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI). pp. 1395-1404. [Selected Media Coverage: MIT Technology Review, May 2007]

• Summary: Presents the design and evaluation of earPod: an eyes-free menu technique using touch input and auditory feedback. Results indicate that earPod is a promising technique comparable in performance to visual menus.
• movie (4 MB wma, 720x480, 29.970 fps, 1:04)
• PPT slides of my presentation at CHI 2007 
• earPod homepage

 

Xiangshi Ren, Jinbin Ying, Shengdong Zhao, Yang Li (2007). The Adaptive Hybrid Cursor: A Pressure-based Target Selection Technique for Pen-based Interfaces. Proceedings of the Interact 2007 Conference (INTERACT). pp. 310-323.

• Summary: Presents the Adaptive Hybrid Cursor, a novel target acquisition technique that assists a user in a target selection task by automatically adapting the size of the cursor and/or its contexts (the target size and the selection background) based on pen pressure input.

 

Patrick Baudisch, Desney Tan, Maxime Collomb, Daniel Robbins, Ken Hinckley, Maneesh Agrawala, Shengdong Zhao, and Gonzalo Ramos (2006). Phosphor: Explaining Transitions in the User Interface Using Afterglow Effects. Proceedings of the ACM Symposium on User Interface Software and Technology (UIST). pp. 169-178.

• Summary: Proposes to use Phosphor objects to instantly show the outcome of user interactions while explaining the change in retrospect. A framework of transition designs for widgets, icons, and objects in drawing programs has been proposed and evaluated. 

Shengdong Zhao, Maneesh Agrawala, Ken Hinckley (2006). Zone and Polygon Menus: Using Relative Position to Increase the Breadth of Multi-stroke Marking Menus. Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI). pp. 1077-1086. [Acceptance rate: 118/506 or 23%]

• Summary: Zone and Polygon menus are two new variants of multi-stroke marking menus that consider both the relative position and orientation of strokes. Our menus are designed to increase menu breadth over the 8 item limit of status quo orientation-based marking menus. We also discuss hybrid techniques that may further increase menu breadth and performance.
• movie (22 MB wma, 720x480, 29.970 fps, 5:02)
• PPT slides of my presentation at CHI 2006.
• CHI Madness
  Faster, higher, stronger is the spirit that makes Olympic Games so exciting to watch, but I am not good at any of the sports, so I decided to become a coach. In this year's world Marking Menu competition, we lead our athletes: "Zone Menu" and "Polygon Menu", after intensive training, practicing, sweating, suffering, and crying, win the game by excellent speed, accuracy, and menu configuration. Behind every athlete, there is a story! To listen to the touching stories of Zone and Polygon Menus, please come to the live broadcast event at 9:30 am prime time on channel "Menus". See you there! 

Shengdong Zhao, Michael J. McGuffin, Mark H. Chignell (2005). Elastic Hierarchies: Combining Treemaps and Node-link Diagrams. Proceedings of IEEE Symposium on Information Visualization (InfoVis). pp. 57-64. [Acceptance rate: 31/114 or 27%]

• Summary: Considers hybrid graphical representations that combine node-link and treemap diagrams for the purposes of tree visualization. The concept of elastic representational space is introduced. A theoretical analysis yields a taxonomy of various potential hybrid combinations, and a prototype system is implemented to experiment with these.
• movie (28 MB avi, DivX 6.0 encoded, 720x480, 29.970 fps, 5:00)
  Although the prototype does support some animated transitions, performance problems during the capturing of the video resulted in these animations not being very apparent in the video.
• PPT slides of my talk at InfoVis 2005
• PPT slides of my talk on an overview of Tree and Treemap visualizations (2003).

Shengdong Zhao, Ravin Balakrishnan. (2004). Simple vs. Compound Mark Hierarchical Marking Menus. Proceedings of the ACM Symposium on User Interface Software and Technology (UIST). pp. 33-42. [Acceptance rate: 36/170 or 21%. Received 5,5,5,5 from all reviewers - the highest review score in UIST 2004.]

• Summary: Simple mark technique (multi-stroke marking menu) is a variant of hierarchical marking menus where items are selected using a series of straight lines, rather than the single "zig-zag" compound mark used in the traditional design. Study shows multi-stroke marking menu increase menu depth, and is faster and more accurate than the traditional compound mark technique while requiring less input space. 
• PPT slides my presentation at UIST 2004

 

Monica C. Schraefel, Yuxiang Zhu, David Modjeska, Daniel Wigdor, Shengdong Zhao. (2002) Hunter Gatherer: Interaction Support for the Creation and Management of Within-web-page Collections. Proceedings of the Eleventh International Conference on World Wide Web (WWW). pp. 172-181.

• Summary: Hunter Gatherer is an interface that lets Web users carry out three main tasks: (1) collect components from within Web pages; (2) represent those components in a collection; (3) edit those component collections. Our research shows that while the practice of making collections of content from within Web pages is common, it is not frequent, due in large part to poor interaction support in existing tools. We engaged with users in task analysis as well as iterative design reviews in order to understand the interaction issues that are part of within-Web-page collection making and to design an interaction that would support that process.