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» Improving verbose queries using subset distribution
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WCE
2007
13 years 9 months ago
A Distributed Energy Efficient Query Processing in Self-Organized Wireless Sensor Networks
—Spatial query execution is an essential functionality of a sensor network. Redundancy within a sensor network can be exploited to reduce the communication cost incurred in execu...
Meer A. Hamza, Sherin M. Youssef, Salma F. Fayed
KDD
2007
ACM
169views Data Mining» more  KDD 2007»
14 years 8 months ago
Exploiting underrepresented query aspects for automatic query expansion
Users attempt to express their search goals through web search queries. When a search goal has multiple components or aspects, documents that represent all the aspects are likely ...
Daniel Crabtree, Peter Andreae, Xiaoying Gao
PKDD
2007
Springer
91views Data Mining» more  PKDD 2007»
14 years 1 months ago
Domain Adaptation of Conditional Probability Models Via Feature Subsetting
The goal in domain adaptation is to train a model using labeled data sampled from a domain different from the target domain on which the model will be deployed. We exploit unlabel...
Sandeepkumar Satpal, Sunita Sarawagi
EDBT
2006
ACM
106views Database» more  EDBT 2006»
14 years 7 months ago
DPTree: A Distributed Pattern Tree Index for Partial-Match Queries in Peer-to-Peer Networks
Abstract. Partial-match queries return data items that contain a subset of the query keywords and order the results based on the statistical properties of the matched keywords. The...
Dyce Jing Zhao, Dik Lun Lee, Qiong Luo
PODS
2005
ACM
151views Database» more  PODS 2005»
14 years 7 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...