Publication statistics

Pub. period:2000-2012
Pub. count:30
Number of co-authors:42



Co-authors

Number of publications with 3 favourite co-authors:

Chun Yu:8
Wenchang Xu:6
Jie Liu:5

 

 

Productive colleagues

Yuanchun Shi's 3 most productive colleagues in number of publications:

Ravin Balakrishnan:108
Wen Gao:35
Xiang Cao:31
 
 
 

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Yuanchun Shi

Personal Homepage:
media.cs.tsinghua.edu.cn/~pervasive/shiyc/index.htm#Publications


 

Publications by Yuanchun Shi (bibliography)

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2012
 
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Liu, Jie, Yu, Chun, Xu, Wenchang and Shi, Yuanchun (2012): Clustering web pages to facilitate revisitation on mobile devices. In: Proceedings of the 2012 International Conference on Intelligent User Interfaces 2012. pp. 249-252. Available online

Due to small screens, inaccuracy of input and other limitations of mobile devices, revisitation of Web pages in mobile browsers takes more time than that in desktop browsers. In this paper, we propose a novel approach to facilitate revisitation. We designed AutoWeb, a system that clusters opened Web pages into different topics based on their contents. Users can quickly find a desired opened Web page by narrowing down the searching scope to a group of Web pages that share the same topic. Clustering accuracy is evaluated to be 92.4% and computing resource consumption was proved to be acceptable. A user study was conducted to explore user experience and how much AutoWeb facilitates revisitation. Results showed that AutoWeb could save up a significant time for revisitation and participants rated the system highly.

© All rights reserved Liu et al. and/or ACM Press

 
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Liu, Jie, Xu, Wenchang and Shi, Yuanchun (2012): AutoWeb: automatic classification of mobile web pages for revisitation. In: Proceedings of the 14th Conference on Human-computer interaction with mobile devices and services 2012. pp. 191-200. Available online

Revisitation in mobile Web browsers takes more time than that in desktop browsers due to the limitations of mobile phones. In this paper, we propose AutoWeb, a novel approach to speed up revisitation in mobile Web browsing. In AutoWeb, opened Web pages are automatically classified into different groups based on their contents. Users can more quickly revisit an opened Web page by narrowing down search scope into a group of pages that share the same topic. We

© All rights reserved Liu et al. and/or ACM Press

 
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Xu, Wenchang, Liu, Jie, Yu, Chun and Shi, Yuanchun (2012): Digging unintentional displacement for one-handed thumb use on touchscreen-based mobile devices. In: Proceedings of the 14th Conference on Human-computer interaction with mobile devices and services 2012. pp. 261-270. Available online

There is usually an unaware screen distance between initial contact and final lift-off when users tap on touchscreen-based mobile devices with their fingers, which may affect users' target selection accuracy, gesture performance, etc. In this paper, we summarize such case as unintentional displacement and give its models under both static and dynamic scenarios. We then conducted two user studies to understand unintentional displacement for the widely-adopted one-handed thumb use on touchscreen-based mobile devices under both scenarios respectively. Our findings shed light on the following four questions: 1) what are the factors that affect unintentional displacement; 2) what is the distance range of the displacement; 3) how is the distance varying over time; 4) how are the unintentional points distributed around the initial contact point. These results not only explain certain touch inaccuracy, but also provide important reference for optimization and future design of UI components, gestures, input techniques, etc.

© All rights reserved Xu et al. and/or ACM Press

2011
 
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Fan, Mingming, Li, Xin, Zhong, Yu, Tian, Li, Shi, Yuanchun and Wang, Hao (2011): Surprise Grabber: a co-located tangible social game using phone hand gesture. In: Proceedings of ACM CSCW11 Conference on Computer-Supported Cooperative Work 2011. pp. 625-628. Available online

Social network games (SNGs) are among the most popular games recently. Different from the asynchronous and online based SNGs, we present Surprise Grabber to see how tangible gesture interface could benefit the synchronous co-located social game. In Surprise Grabber, users control a virtual grabber's moving in 3D game to catch the gifts by using their camera phone. An efficient code running on the phone detects hand motion, delivers results to Serve PC and provides feedbacks in real time. Distinguished from online SNGS, all players stand together in front of a public display. The results of the pilot user studies showed that: 1) Gesture interface was easy to catch up and made the game more immersive; 2) Occasionally inaccuracy in hand motion detection made the game more competitive instead of frustrating players; 3) Players' performances were obviously influenced by the social atmosphere; 4) In most cases, players' performances became better or worse at the same time.

© All rights reserved Fan et al. and/or their publisher

 
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Xu, Wenchang, Yu, Chun and Shi, Yuanchun (2011): RegionalSliding: enhancing target selection on touchscreen-based mobile devices. In: Proceedings of ACM CHI 2011 Conference on Human Factors in Computing Systems 2011. pp. 1261-1266. Available online

Target selection on mobile devices with touchscreens usually gets users into trouble due to the occlusion of the target by the user's finger and ambiguity about which part of the finger generates the result point. In this paper, we propose a novel technique to enhance target selection on touchscreen-based mobile devices, named RegionalSliding, which selectively renders the initially "selected" target as well as its "surrounding" targets in a non-occluded area when users press down on the screen and enables users to complete the selection with sliding gestures according to the visual feedback from the rendered area. A preliminary user study shows that RegionalSliding increases the selection accuracy and brings good user experience.

© All rights reserved Xu et al. and/or their publisher

 
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Qin, Yongqiang, Yu, Chun, Liu, Jie, Wang, Yuntao, Shi, Yue, Su, Zhouyue and Shi, Yuanchun (2011): uTable: a seamlessly tiled, very large interactive tabletop system. In: Proceedings of the 2011 ACM International Conference on Interactive Tabletops and Surfaces 2011. pp. 244-245. Available online

We present uTable, a very large horizontal interactive surface which accommodates up to ten people sitting around and interacting in parallel. We identify the key aspects for building such large interactive tabletops and discuss the pros and cons of potential techniques. After several rounds of trials, we finally chose tiled rear projection for building the very large surface and DI solution for detecting touch inputs. We also present a set of techniques to narrow the interior bezels, uniform the color/brightness of the surface and handle multiple streams of inputs. Finally uTable achieves a good overall performance in terms of display effect and input capability.

© All rights reserved Qin et al. and/or ACM Press

 
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Zhong, Yu, Suo, Yue, Xu, Wenchang, Yu, Chun, Guo, Xinwei, Zhao, Yuhang and Shi, Yuanchun (2011): Smart home on smart phone. In: Proceedings of the 2011 International Conference on Uniquitous Computing 2011. pp. 467-468. Available online

Mobile phone with high accessibility and usability is regarded as the ideal interface for the users to monitor and control the approaching smart home environment. Moreover, networking technologies and protocols have been advanced enough to support a universal monitoring and controlling interface on smart phones. This paper presents HouseGenie, an interactive, direct manipulation application on mobile, which supports a range of basic home monitoring and controlling functionalities as a replacement of individual remotes of smart home appliances. HouseGenie also addresses several common requirements that may be behind the vision, such as scenario, short-delay alarm, area restriction and so on. We demonstrate that HouseGenie not only provides intuitive presentations and interactions for smart home management, but also improves user experience comparing to present solutions.

© All rights reserved Zhong et al. and/or ACM Press

 
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Yu, Chun, Tan, Xu, Shi, Yue and Shi, Yuanchun (2011): Air finger: enabling multi-scale navigation by finger height above the surface. In: Proceedings of the 2011 International Conference on Uniquitous Computing 2011. pp. 495-496. Available online

We present Air Finger, a novel technique that enables controlling CD ratio by finger height above the touch sur-face for multi-scale navigation tasks. Extending previous research on virtual touch, Air Finger divides the space above surface into two layers and associates the high, medium and low CD ratios to the touch surface, the lower air and the higher air respectively. Users can fluidly switch between the three navigation scales by lifting and pressing the finger. Air Finger enables multi-scale navigation control using one hand.

© All rights reserved Yu et al. and/or ACM Press

 
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Shi, Yue, Shi, Yuanchun and Liu, Jie (2011): A rotation based method for detecting on-body positions of mobile devices. In: Proceedings of the 2011 International Conference on Uniquitous Computing 2011. pp. 559-560. Available online

We present a novel rotation based method for detecting where a mobile device is worn on a user's body that utilizes the fusion of the data from accelerometer and gyroscope. Detecting the position of a mobile device could improve the performance of on-body sensor based human activity recognition and the adaptability of many mobile applications. In our method, the radius and angular velocity for a position is calculated based on the data read from the sensors integrated in a mobile device. We have evaluated our method with an experiment to detect four commonly used positions: breast pocket, trouser pocket, hip pocket and hand.

© All rights reserved Shi et al. and/or ACM Press

 
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Zhao, Yuhang, Xue, Chao, Cao, Xiang and Shi, Yuanchun (2011): PicoPet: "Real World" digital pet on a handheld projector. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 1-2. Available online

We created PicoPet, a digital pet game based on mobile handheld projectors. The player can project the pet into physical environments, and the pet behaves and evolves differently according to the physical surroundings. PicoPet creates a new form of gaming experience that is directly blended into the physical world, thus could become incorporated into the player's daily life as well as reflecting their lifestyle. Multiple pets projected by multiple players can also interact with each other, potentially triggering social interactions between players. In this paper, we present the design and implementation of PicoPet, as well as directions for future explorations.

© All rights reserved Zhao et al. and/or ACM Press

 
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Shi, Yue, Suo, Yue, Ma, Shang and Shi, Yuanchun (2011): PuppetAnimator: A Performative Interface for Experiencing Shadow Play. In: Proceedings of the 2011 International Conference on Advances in Computer-Human Interactions 2011. pp. 75-78. Available online

We present PuppetAnimator, a novel interface that enables non-expert users to experience funny shadow play and create puppet animation by manipulating the character with simple pointing device. Inspired by the real shadow puppet performance, we employ the "sticks from hands to the puppet" metaphor for interaction and design a set of motion modes including Translation, Swing, Drag, Rotation and Two-joint Drive. Based on motions modes' combination, several puppet templates are prebuilt for the user to customize the skin with images and control channels with input devices. Then the user can manipulate the puppet to arrange actions. Features such as recording the user's performance, replaying and saving as video files are also provided. This paper describes the system design rationale and implementation. We demonstrate PuppetAnimator with several puppet actions and pilot study shows that with the system, users can easily make animation of a shadow puppet's action for storytelling.

© All rights reserved Shi et al. and/or IEEE

 
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Fan, Mingming and Shi, Yuanchun (2011): Back-to-Back: A Novel Approach for Real Time 3D Hand Gesture Interaction. In: Proceedings of the 2011 International Conference on Advances in Computer-Human Interactions 2011. pp. 101-105. Available online

In this paper, we present Back-to-Back, a novel real time hand gesture interface for 3D interaction based on double cameras. Back-to-Back dexterously makes use of the geometric complement of two back-to-back cameras. Held in hand, Back-to-Back could deduce hand's 3D motion in real time. The basic idea is to extract good corner points from the image sequences captured by two cameras separately and track them while moving. By comparing the motions of two groups of points, the hand's translation and rotation could be deduced accurately as well as other motion parameters. Back-to-Back is a prototype for gestural interaction on mobile devices equipped with two cameras. To further demonstrate its usability, we then analyze the requirements of 3D navigation task and design a strategy to navigate in 3D Space naturally by using Back-to-Back.

© All rights reserved Fan and Shi and/or IEEE

2010
 
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Qin, Yongqiang, Shi, Yuanchun, Jiang, Hao and Yu, Chun (2010): Structured laser pointer: enabling wrist-rolling movements as a new interactive dimension. In: Proceedings of the 2010 International Conference on Advanced Visual Interfaces 2010. pp. 163-166. Available online

In this paper, we re-visit the issue of multi-point laser pointer interaction from a wrist-rolling perspective. Firstly, we proposed SLP -- Structured Laser Pointer, and detects a laser pointer's rotation along its emitting axis. SLP adds the wrist-rolling gestures as a new interactive dimension to the conventional laser pointer interaction approach. We asked a group of users to perform certain tasks using SLP, and derived from test results a set of criteria to distinguish between incidental and intentional SLP rolling, and then the experimental results also approved the high accuracy and acceptable speed as well as throughput of such rolling interaction.

© All rights reserved Qin et al. and/or their publisher

 
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Yu, Chun, Shi, Yuanchun, Balakrishnan, Ravin, Meng, Xiangliang, Suo, Yue, Fan, Mingming and Qin, Yongqiang (2010): The satellite cursor: achieving MAGIC pointing without gaze tracking using multiple cursors. In: Proceedings of the 2010 ACM Symposium on User Interface Software and Technology 2010. pp. 163-172. Available online

We present the satellite cursor -- a novel technique that uses multiple cursors to improve pointing performance by reducing input movement. The satellite cursor associates every target with a separate cursor in its vicinity for pointing, which realizes the MAGIC (manual and gaze input cascade) pointing method without gaze tracking. We discuss the problem of visual clutter caused by multiple cursors and propose several designs to mitigate it. Two controlled experiments were conducted to evaluate satellite cursor performance in a simple reciprocal pointing task and a complex task with multiple targets of varying layout densities. Results show the satellite cursor can save significant mouse movement and consequently pointing time, especially for sparse target layouts, and that satellite cursor performance can be accurately modeled by Fitts' Law.

© All rights reserved Yu et al. and/or their publisher

 
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Xu, Wenchang, Yang, Xin and Shi, Yuanchun (2010): Enhancing browsing experience of table and image elements in web pages. In: Proceedings of the 2010 International Conference on Multimodal Interfaces 2010. p. 24. Available online

As the popularity and diversification of both Internet and its access devices, users' browsing experience of web pages is in great need of improvement. Traditional browsing mode of web elements such as table and image is passive, which limits users' browsing efficiency of web pages. In this paper, we propose to enhance browsing experience of table and image elements in web pages by enabling real-time interactive access to web tables and images. We design new browsing modes that help users improve their browsing efficiency including operation mode, record mode for web tables and normal mode, starred mode, advanced mode for web images. We design and implement a plug-in for Microsoft Internet Explorer, called iWebWidget, which provides a customized user interface supporting real-time interactive access to web tables and images. Besides, we carry out a user study to testify the usefulness of iWebWidget. Experimental results show that users are satisfied and really enjoy the new browsing modes for both web tables and images.

© All rights reserved Xu et al. and/or ACM Press

2009
 
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Dragicevic, Pierre and Shi, Yuanchun (2009): Visualizing and manipulating automatic document orientation methods using vector fields. In: Proceedings of the 2009 ACM International Conference on Interactive Tabletops and Surfaces 2009. pp. 65-68. Available online

We introduce and illustrate a design framework whereby tabletop documents are oriented according to vector fields that can be visualized and altered by end users. We explore and illustrate the design space using interactive 2D mockups and show how this approach can potentially combine the advantages of the fully manual and fully automatic document orientation methods previously proposed in the literature.

© All rights reserved Dragicevic and Shi and/or their publisher

2008
 
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Fan, Mingming, Zhang, Liang and Shi, Yuanchun (2008): Hand's 3D movement detection with one handheld camera. In: Feiner, Steven K., Thalmann, Daniel, Guitton, Pascal, Frohlich, Bernd, Kruijff, Ernst and Hachet, Martin (eds.) VRST 2008 - Proceedings of the ACM Symposium on Virtual Reality Software and Technology October 27-29, 2008, Bordeaux, France. pp. 255-256. Available online

 
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Xiao, Xin, Shi, Yuanchun and Gao, Yuan (2008): On optimal scheduling for layered video streaming in heterogeneous peer-to-peer networks. In: El-Saddik, Abdulmotaleb, Vuong, Son, Griwodz, Carsten, Bimbo, Alberto Del, Candan, K. Selcuk and Jaimes, Alejandro (eds.) Proceedings of the 16th International Conference on Multimedia 2008 October 26-31, 2008, Vancouver, British Columbia, Canada. pp. 785-788. Available online

 
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Zhang, Liang, Shi, Yuanchun and Fan, Mingming (2008): UCam: direct manipulation using handheld camera for 3d gesture interaction. In: El-Saddik, Abdulmotaleb, Vuong, Son, Griwodz, Carsten, Bimbo, Alberto Del, Candan, K. Selcuk and Jaimes, Alejandro (eds.) Proceedings of the 16th International Conference on Multimedia 2008 October 26-31, 2008, Vancouver, British Columbia, Canada. pp. 801-804. Available online

 
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Zhang, Liang, Shi, Yuanchun and Chen, Boliang (2008): NALP: Navigating Assistant for Large Display Presentation Using Laser Pointer. In: Proceedings of the 2008 International Conference on Advances in Computer-Human Interactions 2008. pp. 39-44. Available online

In this paper, we present NALP (Navigating Assistant using Laser Pointer), a novel interaction technique for large display presentation control. NALP is based on laser dot detection, track recognition and space segmentation, allowing users to manipulate the presentation software (such as PowerPoint) directly and freely using any kind of common laser pointer. Demanding users only to sweep the pointer to and fro on display, this technique to a large extent solved the problems caused by hand jitter, latency and detection errors existing in other navigation assistant systems. Report on evaluation experiments shows that when delivering an electronic and interactive presentation with large displays, NALP can effectively meet the need and is preferred over other laser pointer interactive methods.

© All rights reserved Zhang et al. and/or IEEE

2006
 
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Jiang, Hao, Ofek, Eyal, Moraveji, Neema and Shi, Yuanchun (2006): Direct pointer: direct manipulation for large-display interaction using handheld cameras. In: Proceedings of ACM CHI 2006 Conference on Human Factors in Computing Systems 2006. pp. 1107-1110. Available online

This paper describes the design and evaluation of a technique, Direct Pointer, that enables users to interact intuitively with large displays using cameras equipped on handheld devices, such as mobile phones and personal digital assistant (PDA). In contrast to many existing interaction methods that attempt to address the same problem, ours offers direct manipulation of the pointer position with continuous visual feedback. The primary advantage of this technique is that it only requires equipment that is readily available: an electronic display, a handheld digital camera, and a connection between the two. No special visual markers in the display content are needed, nor are fixed cameras pointing at the display. We evaluated the performance of Direct Pointer as an interaction product, showing that it performs as well as comparable techniques that require more sophisticated equipment.

© All rights reserved Jiang et al. and/or ACM Press

 
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Bi, Xiaojun, Shi, Yuanchun and Chen, Xiaojie (2006): uPen: A Smart Pen-liked Device for Facilitating Interaction on Large Displays. In: First IEEE International Workshop on Horizontal Interactive Human-Computer Systems Tabletop 2006 5-7 January, 2006, Adelaide, Australia. pp. 160-168. Available online

 
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Xiang, Peifeng, Yang, Xin and Shi, Yuanchun (2006): Effective Page Segmentation Combining Pattern Analysis and Visual Separators for Browsing on Small Screens. In: 2006 IEEE / WIC / ACM International Conference on Web Intelligence WI 2006 18-22 December, 2006, Hong Kong, China. pp. 831-840. Available online

2005
 
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Bi, Xiaojun, Shi, Yuanchun, Chen, Xiaojie and Xiang, Peifeng (2005): uPen: laser-based, personalized, multi-user interaction on large displays. In: Zhang, Hongjiang, Chua, Tat-Seng, Steinmetz, Ralf, Kankanhalli, Mohan S. and Wilcox, Lynn (eds.) Proceedings of the 13th ACM International Conference on Multimedia November 6-11, 2005, Singapore. pp. 1049-1050. Available online

2004
 
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Guo, Ling, Xiang, Xin and Shi, Yuanchun (2004): Use Web Usage Mining to Assist Online E-Learning Assessment. In: Looi, Chee-Kit, Sutinen, Erkki, Sampson, Demetrios G., Aedo, Ignacio, Uden, Lorna and Khkonen, Esko (eds.) ICALT 2004 - Proceedings of the IEEE International Conference on Advanced Learning Technologies 30 August - 1 September, 2004, Joensuu, Finland. .

2003
 
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Xiang, Xin, Shi, Yuanchun and Guo, Ling (2003): A Conformance Test Suite of Localized LOM Model. In: ICALT 2003 - 2003 IEEE International Conference on Advanced Learning Technologies 9-11 July, 2003, Athens, Greece. pp. 288-289. Available online

2002
 
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Xie, Weikai, Shi, Yuanchun, Xu, Guangyou and Mao, Yanhua (2002): Smart Platform - A Software Infrastructure for Smart Space (SISS). In: 4th IEEE International Conference on Multimodal Interfaces - ICMI 2002 14-16 October, 2002, Pittsburgh, PA, USA. pp. 429-436. Available online

 
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Xie, Weikai, Shi, Yuanchun, Xu, Guanyou and Mao, Yanhua (2002): Smart Platform -- A Software Infrastructure for Smart Space (SISS). In: Proceedings of the 2002 International Conference on Multimodal Interfaces 2002. p. 429. Available online

A software infrastructure is fundamental to a Smart Space. Previous proposed software infrastructure for Smart Space (SISS) did not sufficiently address the issue of performance and usability. A new solution, Smart Platform, which is focused on improving these aspects of a SISS, is presented in this paper. To optimize its intermodule communication performance, the stream-oriented communication is distinguished from the message-oriented ones, and a corresponding hybrid communication scheme is proposed. To improve the usability, a featured loose-coupling structure, a straightforward Publish-and-Subscribe coordination model as well as a set of user-friendly deployment and development tools are developed. Besides, Smart Platform is intended as an open and generic SISS available for other research groups. To this end, XML-based message syntax and open wire-protocol based architecture are adopted to make sharing research efforts more easily.

© All rights reserved Xie et al. and/or their publisher

2000
 
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Tan, Tieniu, Shi, Yuanchun and Gao, Wen (eds.) Advances in Multimodal Interfaces - ICMI 2000 - Third International Conference October 14-16, 2000, Beijing, China.

 
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Tan, Kun, Shi, Yuanchun and Xu, Guangyou (2000): A Pragmatic Semantic Reliable Multicast Architecture for Distant Learning. In: Tan, Tieniu, Shi, Yuanchun and Gao, Wen (eds.) Advances in Multimodal Interfaces - ICMI 2000 - Third International Conference October 14-16, 2000, Beijing, China. pp. 658-665. Available online

 
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