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PODS
2007
ACM
203views Database» more  PODS 2007»
14 years 7 months ago
Decision trees for entity identification: approximation algorithms and hardness results
We consider the problem of constructing decision trees for entity identification from a given relational table. The input is a table containing information about a set of entities...
Venkatesan T. Chakaravarthy, Vinayaka Pandit, Samb...
PODS
2007
ACM
159views Database» more  PODS 2007»
14 years 7 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
MOBISYS
2008
ACM
14 years 7 months ago
Behavioral detection of malware on mobile handsets
A novel behavioral detection framework is proposed to detect mobile worms, viruses and Trojans, instead of the signature-based solutions currently available for use in mobile devi...
Abhijit Bose, Xin Hu, Kang G. Shin, Taejoon Park
MOBISYS
2006
ACM
14 years 7 months ago
FireWxNet: a multi-tiered portable wireless system for monitoring weather conditions in wildland fire environments
In this paper we present FireWxNet, a multi-tiered portable wireless system for monitoring weather conditions in rugged wildland fire environments. FireWxNet provides the fire fig...
Carl Hartung, Richard Han, Carl Seielstad, Saxon H...
MOBIHOC
2008
ACM
14 years 7 months ago
Efficient binary schemes for training heterogeneous sensor and actor networks
Sensor networks are expected to evolve into long-lived, autonomous networked systems whose main mission is to provide in-situ users ? called actors ? with real-time information in...
Ferruccio Barsi, Alfredo Navarra, Maria Cristina P...