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» On the Need for Practical Formal Methods
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ICDE
1999
IEEE
148views Database» more  ICDE 1999»
14 years 9 months ago
Efficient Mining of Partial Periodic Patterns in Time Series Database
Partial periodicity search, i.e., search for partial periodic patterns in time-series databases, is an interesting data mining problem. Previous studies on periodicity search main...
Jiawei Han, Guozhu Dong, Yiwen Yin
WWW
2009
ACM
14 years 8 months ago
Towards context-aware search by learning a very large variable length hidden markov model from search logs
Capturing the context of a user's query from the previous queries and clicks in the same session may help understand the user's information need. A context-aware approac...
Huanhuan Cao, Daxin Jiang, Jian Pei, Enhong Chen, ...
VLSID
2003
IEEE
103views VLSI» more  VLSID 2003»
14 years 8 months ago
Minimum Dynamic Power CMOS Circuit Design by a Reduced Constraint Set Linear Program
In the previous work, the problem of nding gate delays to eliminate glitches has been solved by linear programs (LP) requiring an exponentially large number ofconstraints. By intr...
Tezaswi Raja, Vishwani D. Agrawal, Michael L. Bush...
PERCOM
2007
ACM
14 years 7 months ago
Mining Frequent Trajectory Patterns for Activity Monitoring Using Radio Frequency Tag Arrays
Activity monitoring, a crucial task in many applications, is often conducted expensively using video cameras. Also, effectively monitoring a large field by analyzing images from m...
Yunhao Liu, Lei Chen 0002, Jian Pei, Qiuxia Chen, ...
EDBT
2009
ACM
241views Database» more  EDBT 2009»
14 years 2 months ago
GADDI: distance index based subgraph matching in biological networks
Currently, a huge amount of biological data can be naturally represented by graphs, e.g., protein interaction networks, gene regulatory networks, etc. The need for indexing large ...
Shijie Zhang, Shirong Li, Jiong Yang