Publication statistics

Pub. period:1997-2006
Pub. count:8
Number of co-authors:10


Number of publications with 3 favourite co-authors:

Yong Hu:
Juhua Chen:
Xiaoxi Huang:



Productive colleagues

Yun Yang's 3 most productive colleagues in number of publications:

Chengzheng Sun:31
David Chen:14
Gitesh K. Raikunda..:10

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Yun Yang


Publications by Yun Yang (bibliography)

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Tran, Minh Hong, Yang, Yun and Raikundalia, Gitesh K. (2006): Extended radar view and modification director: awareness mechanisms for synchronous collaborative authoring. In: Piekarski, Wayne (ed.) AUIC 2006 - User Interfaces 2006 - 7th Australasian User Interface Conference January 16-19, 2006, Hobart, Tasmania, Australia. pp. 45-52.

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Tran, Minh Hong, Yang, Yun and Raikundalia, Gitesh K. (2005): Supporting awareness in instant messaging: an empirical study and mechanism design. In: Proceedings of OZCHI05, the CHISIG Annual Conference on Human-Computer Interaction 2005. pp. 1-10.

Supporting awareness plays a prominent role in facilitating natural and effective communication in Instant Messaging (IM). This paper reports our empirical study of awareness in IM, using an online survey and face-to-face interviews to identify user needs for awareness support. The study has identified three themes, including awareness of multiple concurrent conversations, presence awareness of a group conversation, and visibility of moment-to-moment listeners and viewers. The study showed that these three types of awareness are necessary but have been either ineffectively supported or ignored by current IM systems. Drawing on these findings, we have designed three awareness features to support these three categories of awareness. Conversation Dock provides awareness of multiple conversations; Group List provides presence awareness in a group chat by showing who are no longer in the group chat and who are going to join the chat; and Track View provides awareness of in-progress listeners in voice conversations and in-progress viewers in video conversations.

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

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Yang, Yun, Hu, Yong and Chen, Juhua (2005): A web trust-inducing model for e-commerce and empirical research. In: Li, Qi and Liang, Ting-Peng (eds.) Proceedings of the 7th International Conference on Electronic Commerce - ICEC 2005 August 15-17, 2005, Xian, China. pp. 188-194.

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Huang, Xiaoxi, Yang, Yun and Zhou, Changle (2005): Emotional Metaphors for Emotion Recognition in Chinese Text. In: Tao, Jianhua, Tan, Tieniu and Picard, Rosalind W. (eds.) ACII 2005 - Affective Computing and Intelligent Interaction, First International Conference October 22-24, 2005, Beijing, China. pp. 319-325.

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Tran, Minh Hong, Raikundalia, Gitesh K. and Yang, Yun (2004): What Are You Looking At? Newest Findings from an Empirical Study of Group Awareness. In: Masoodian, Masood, Jones, Steve and Rogers, Bill (eds.) Computer Human Interaction 6th Asia Pacific Conference - APCHI 2004 June 29 - July 2, 2004, Rotorua, New Zealand. pp. 491-500.

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Yang, Yun, Sun, Chengzheng, Zhang, Yanchun and Jia, Xiaohua (2000): Real-Time Cooperative Editing on the Internet. In IEEE Internet Computing, 4 (3) pp. 18-25.

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Sun, Chengzheng, Jia, Xiaohua, Zhang, Yanchun, Yang, Yun and Chen, David (1998): Achieving Convergence, Causality Preservation, and Intention Preservation in Real-Time Cooperative Editing Systems. In ACM Transactions on Computer-Human Interaction, 5 (1) pp. 63-108.

Real-time cooperative editing systems allow multiple users to view and edit the same text/graphic/image/multimedia document at the same time from multiple sites connected by communication networks. Consistency maintenance is one of the most significant challenges in designing and implementing real-time cooperative editing systems. In this article, a consistency model, with properties of convergence, causality preservation, and intention preservation, is proposed as a framework for consistency maintenance in real-time cooperative editing systems. Moreover, an integrated set of schemes and algorithms, which support the proposed consistency model, are devised and discussed in detail. In particular, we have contributed (1) a novel generic operation transformation control algorithm for achieving intention preservation in combination with schemes for achieving convergence and causality preservation and (2) a pair of reversible inclusion and exclusion transformation algorithms for stringwise operations for text editing. An Internet-based prototype system has been built to test the feasibility of the proposed schemes and algorithms.

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

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Sun, Chengzheng, Zhang, Yanchun, Jia, Xiaohua and Yang, Yun (1997): A Generic Operation Transformation Scheme for Consistency Maintenance in Real-Time Cooperative Editing Systems. In: Payne, Stephen C. and Prinz, Wolfgang (eds.) Proceedings of the International ACM SIGGROUP Conference on Supporting Group Work 1997 November 11-19, 1997, Phoenix, Arizona, USA. pp. 425-434.

In real-time cooperative editing systems, independent operations on any part of the shared document may be generated from multiple cooperating sites. It is very important and technically challenging to ensure that the effect of executing an operation at remote sites, in the presence of concurrent execution of independent operations, achieves the same effect as executing this operation at the local site at the time of its generation, thus preserving its intention and maintaining system consistency. In this paper, we investigate the technical issues involved in preserving intentions of concurrent operations, explain the reasons why traditional serialization-based concurrency control strategies and existing operational transformation strategies failed to solve these problems, and propose a generic operation transformation scheme for intention preservation and consistency maintenance in real-time cooperative editing systems. The proposed scheme has been implemented in an Internet-based prototype REDUCE (REal-time Distributed Unconstrained Cooperative Editing) system.

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

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