Publication statistics

Pub. period:1998-2011
Pub. count:12
Number of co-authors:39



Co-authors

Number of publications with 3 favourite co-authors:

Joseph A. Konstan:2
Yan Gao:2
Zhichun Li:2

 

 

Productive colleagues

Yan Chen's 3 most productive colleagues in number of publications:

Arie E. Kaufman:87
Joseph A. Konstan:47
Benjamin Watson:26
 
 
 

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Yan Chen

 

Publications by Yan Chen (bibliography)

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2011
 
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Chen, Yan and Zhang, Lin (2011): Research on role-based dynamic access control. In: Proceedings of the 2011 iConference 2011. pp. 657-660. Available online

In this paper, we introduce "region restriction" concept and "user group" concept to solve the shortcomings of traditional role-based access control (RBAC) and propose role-based dynamic access control (RBDAC). Then we provide formalized description of the components of the model of RBDAC and get the function of a user's permissions. At last, we describe the database design based on RBDAC. Practice has proved that RBDAC can not only improve the security of access to system resources, but also can simplify the authorization work for the administrators.

© All rights reserved Chen and Zhang and/or ACM Press

2010
 
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Jeon, Grace YoungJoo, Kim, Yong-Mi and Chen, Yan (2010): Re-examining price as a predictor of answer quality in an online q&a site. In: Proceedings of ACM CHI 2010 Conference on Human Factors in Computing Systems 2010. pp. 325-328. Available online

Online question-answering services provide mechanisms for knowledge exchange by allowing users to ask and answer questions on a wide range of topics. A key question for designing such services is whether charging a price has an effect on answer quality. Two field experiments using one such service, Google Answers, offer conflicting answers to this question. To resolve this inconsistency, we re-analyze data from Harper et al. [5] and Chen et al. [2] to study the price effect in greater depth. Decomposing the price effect into two different levels yields results that reconcile those of the two field experiments. Specifically, we find that: (1) a higher price significantly increases the likelihood that a question receives an answer and (2) for questions that receive an answer, there is no significant price effect on answer quality. Additionally, we find that the rater background makes a difference in evaluating answer quality.

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

2007
 
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Chen, Yan, Huang, Lixian, Li, Lulu, Luo, Qi, Wang, Ying and Xu, Jing (2007): The Experimental Approaches of Assessing the Consistency of User Interface. In: Jacko, Julie A. (ed.) HCI International 2007 - 12th International Conference - Part I July 22-27, 2007, Beijing, China. pp. 420-427. Available online

 
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Harper, F. Maxwell, Li, Sherry Xin, Chen, Yan and Konstan, Joseph A. (2007): Social Comparisons to Motivate Contributions to an Online Community. In: Kort, Yvonne de, IJsselsteijn, Wijnand, Midden, Cees J. H., Eggen, Berry and Fogg, B. J. (eds.) PERSUASIVE 2007 - Persuasive Technology, Second International Conference on Persuasive Technology April 26-27, 2007, Palo Alto, CA, USA. pp. 148-159. Available online

2006
 
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Zhai, Jun, Yang, Xiao-Jia and Chen, Yan (2006): A Method of Adaptive Neuron Model (AUILS) and Its Application. In: Yao, Yiyu, Shi, Zhongzhi, Wang, Yingxu and Kinsner, Witold (eds.) Proceedings of the Firth IEEE International Conference on Cognitive Informatics ICCI 2006 July 17-19, 2006, Beijing, China. pp. 47-52. Available online

 
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Ren, Pin, Gao, Yan, Li, Zhichun, Chen, Yan and Watson, Benjamin (2006): IDGraphs: Intrusion Detection and Analysis Using Stream Compositing. In IEEE Computer Graphics and Applications, 26 (2) pp. 28-39. Available online

2005
 
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Li, Ye, Chen, Yan and Li, Jia-Huan (2005): Research on dynamic supply chain network. 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. 379-384. Available online

 
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Harper, F. Maxwell, Li, Sherry Xin, Chen, Yan and Konstan, Joseph A. (2005): An Economic Model of User Rating in an Online Recommender System. In: Ardissono, Liliana, Brna, Paul and Mitrovic, Antonija (eds.) User Modeling 2005 - 10th International Conference - UM 2005 July 24-29, 2005, Edinburgh, Scotland, UK. pp. 307-316. Available online

 
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Ren, Pin, Gao, Yan, Li, Zhichun, Chen, Yan and Watson, Benjamin (2005): IDGraphs: Intrusion Detection and Analysis Using Histographs. In: Ma, Kwan-Liu, North, Stephen C. and Yurcik, William (eds.) VizSEC 2005 - IEEE Workshop on Visualization for Computer Security 26 October, 2005, Minneapolis, MN, USA. p. 5. Available online

2002
 
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Raman, Bhaskaran, Agarwal, Sharad, Chen, Yan, Caesar, Matthew, Cui, Weidong, Johansson, Per, Lai, Kevin, Lavian, Tal, Machiraju, Sridhar, Mao, Zhuoqing Morley, Porter, George, Roscoe, Timothy, Seshadri, Mukund, Shih, Jimmy S., Sklower, Keith, Subramanian, Lakshminarayanan and Suzuki, Takashi (2002): The SAHARA Model for Service Composition across Multiple Providers. In: Mattern, Friedemann and Naghshineh, Mahmoud (eds.) Pervasive 2002 - Pervasive Computing, First International Conference August 26-28, 2002, Zrich, Switzerland. pp. 1-14. Available online

 
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Chen, Yan, Katz, Randy H. and Kubiatowicz, John (2002): SCAN: A Dynamic, Scalable, and Efficient Content Distribution Network. In: Mattern, Friedemann and Naghshineh, Mahmoud (eds.) Pervasive 2002 - Pervasive Computing, First International Conference August 26-28, 2002, Zrich, Switzerland. pp. 282-296. Available online

1998
 
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Zhu, Qing-hong, Chen, Yan and Kaufman, Arie E. (1998): Real-time Biomechanically-based Muscle Volume Deformation using FEM. In Comput. Graph. Forum, 17 (3) pp. 275-284.

 
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