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DSN
2009
IEEE
15 years 11 months ago
Spam detection in voice-over-IP calls through semi-supervised clustering
In this paper, we present an approach for detection of spam calls over IP telephony called SPIT in VoIP systems. SPIT detection is different from spam detection in email in that t...
Yu-Sung Wu, Saurabh Bagchi, Navjot Singh, Ratsamee...
INFOCOM
2009
IEEE
15 years 11 months ago
D-Scan: Enabling Fast and Smooth Handoffs in AP-Dense 802.11 Wireless Networks
—802.11 wireless networks have gained ever greater popularity nowadays. Apart from static wireless connections, people begin to expect more user-friendly features from this kind ...
Jin Teng, Changqing Xu, Weijia Jia, Dong Xuan
ICDE
2006
IEEE
177views Database» more  ICDE 2006»
16 years 5 months ago
Searching Substructures with Superimposed Distance
Efficient indexing techniques have been developed for the exact and approximate substructure search in large scale graph databases. Unfortunately, the retrieval problem of structu...
Xifeng Yan, Feida Zhu, Jiawei Han, Philip S. Yu
SIGMOD
2011
ACM
297views Database» more  SIGMOD 2011»
14 years 7 months ago
Graph cube: on warehousing and OLAP multidimensional networks
We consider extending decision support facilities toward large sophisticated networks, upon which multidimensional attributes are associated with network entities, thereby forming...
Peixiang Zhao, Xiaolei Li, Dong Xin, Jiawei Han
EMNETS
2007
15 years 8 months ago
Image browsing, processing, and clustering for participatory sensing: lessons from a DietSense prototype
Imagers are an increasingly significant source of sensory observations about human activity and the urban environment. ImageScape is a software tool for processing, clustering, an...
Sasank Reddy, Andrew Parker, Josh Hyman, Jeff Burk...