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Displaying 1-7 out of 7 total
An Empirical Study of a Chinese Online Social Network--Renren
Found in: Computer
By Jianwei Niu,Jing Peng,Lei Shu,Chao Tong,Wanjiun Liao
Issue Date:September 2013
pp. 78-84
Deeper knowledge of social networks' structure and temporal evolution enhances data mining for both research and education purposes. An empirical analysis of a Chinese social network, Renren, shows that it follows an exponentially truncated power law in de...
How Online Social Network Affects Offline Events: A Case Study on Douban
Found in: 2012 IEEE 9th Int'l Conference on Ubiquitous Intelligence & Computing / 9th Int'l Conference on Autonomic & Trusted Computing (UIC/ATC)
By Junwei Han,Jianwei Niu,Alvin Chin,Wei Wang,Chao Tong,Xia Wang
Issue Date:September 2012
pp. 752-757
Social networking sites (SNS) such as Facebook and Twitter are becoming popular forms for finding, promoting and attending offline events and activities. Much work has looked into characterizing these social networks and their user behavior. With the emerg...
An AP handover scheme using vehicular Wi-Fi connectivity
Found in: Software Maintenance and Reengineering, European Conference on
By Jianwei Niu, Bin Dai, Guoping Du, Chao Tong
Issue Date:August 2011
pp. 453-458
With the rapid development of Wi-Fi technology and the dramatic increase in Wi-Fi coverage, it has become much easier to transfer data using roadside AP (Access Point). Previous research proves the feasibility of using vehicular Wi-Fi infrastructure to del...
DSP Implementation of DMRS in PUSCH within the LTE System
Found in: Business Computing and Global Informatization, International Conference on
By Xiaowen Li, Chao Tong
Issue Date:July 2011
pp. 528-531
Demodulation reference signal plays a very important role in channel estimation and equalization in the receiver within the LTE system. At beginning, this paper provides the various formulas that generate the demodulation reference signal (DMRS) in the phy...
Improve the Completeness of Passive Monitoring Trace in Wireless Sensor Network
Found in: Asia-Pacific Conference on Services Computing. 2006 IEEE
By Xianghua Xu, Chao Tong, Jian Wan
Issue Date:December 2010
pp. 560-566
The performance evaluation of wireless sensor network based on passive monitoring restricted by two respects: first, passive monitoring trace is incomplete, because monitors can not capture every transmission in the network. Second, the information directl...
SQS: A Secure and QoS Guaranteed Solution for Mobile Service
Found in: Computer Software and Applications Conference, Annual International
By Chao Tong, Xiaopeng Gao, Wei Chen, Xiang Long
Issue Date:July 2007
pp. 343-352
Mobile IP protocol, a standard proposed by the Internet Engineering Task Force, was designed to support IP mobility. On the basis of analysis of Mobile IP protocol, it can be concluded that some problems (e.g., security flaws, limited agents deployments, t...
Consumer image retrieval by estimating relation tree from family photo collections
Found in: Proceedings of the ACM International Conference on Image and Video Retrieval (CIVR '10)
By Chris Willis, Dan Tretter, Hui Chao, Tong Zhang
Issue Date:July 2010
pp. 143-150
In this paper, we propose an approach to automatically estimate relationship among people in a family image collection based on results from face analyses technologies including automated face recognition and clustering, demographic assessment, and face si...