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LICS
2003
IEEE
14 years 23 days ago
Polynomial-time Algorithms from Ineffective Proofs
We present a constructive procedure for extracting polynomial-time realizers from ineffective proofs of Π0 2theorems in feasible analysis. By ineffective proof we mean a proof wh...
Paulo Oliva
CIKM
2008
Springer
13 years 9 months ago
Linear time membership in a class of regular expressions with interleaving and counting
The extension of Regular Expressions (REs) with an interleaving (shuffle) operator has been proposed in many occasions, since it would be crucial to deal with unordered data. Howe...
Giorgio Ghelli, Dario Colazzo, Carlo Sartiani
LREC
2008
159views Education» more  LREC 2008»
13 years 9 months ago
Corpus Exploitation from Wikipedia for Ontology Construction
Ontology construction usually requires a domain-specific corpus for building corresponding concept hierarchy. The domain corpus must have a good coverage of domain knowledge. Wiki...
Gaoying Cui, Qin Lu, Wenjie Li, Yi-Rong Chen
ICALP
2009
Springer
14 years 7 months ago
Counting Subgraphs via Homomorphisms
We introduce a generic approach for counting subgraphs in a graph. The main idea is to relate counting subgraphs to counting graph homomorphisms. This approach provides new algori...
Omid Amini, Fedor V. Fomin, Saket Saurabh
INFOCOM
2006
IEEE
14 years 1 months ago
Minimum-Energy Broadcast Using Practical Directional Antennas in All-Wireless Networks
— Energy-efficient broadcast communication is an important problem in wireless ad hoc networks. Previously, minimum-energy broadcast that exploits the broadcast nature of radio ...
Sabyasachi Roy, Y. Charlie Hu, Dimitrios Peroulis,...