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» On the Satisfiability of Complex Constraints
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EMNLP
2008
15 years 8 months ago
Syntactic Constraints on Paraphrases Extracted from Parallel Corpora
We improve the quality of paraphrases extracted from parallel corpora by requiring that phrases and their paraphrases be the same syntactic type. This is achieved by parsing the E...
Chris Callison-Burch
GLOBECOM
2010
IEEE
15 years 4 months ago
Joint Rate Control and Spectrum Allocation under Packet Collision Constraint in Cognitive Radio Networks
Abstract-- We study joint rate control and resource allocation with QoS provisioning that maximizes the total utility of secondary users in cognitive radio networks. We formulate a...
Nguyen H. Tran, Choong Seon Hong
OL
2011
277views Neural Networks» more  OL 2011»
15 years 1 months ago
An exact algorithm for minimum CDS with shortest path constraint in wireless networks
In this paper, we study a minimum Connected Dominating Set problem (CDS) in wireless networks, which selects a minimum CDS with property that all intermediate nodes inside every pa...
Ling Ding, Xiaofeng Gao, Weili Wu, Wonjun Lee, Xu ...
GLOBECOM
2007
IEEE
16 years 27 days ago
Low PAPR STBCs from Complex Partial-Orthogonal Designs (CPODs)
— Space-time codes from complex orthogonal designs (CODs) with no zero entries offer low Peak to Average power ratio (PAPR) and avoid the problem of turning off antennas. But COD...
Gopu V. R. Muni Kumar, B. Sundar Rajan
ICS
2010
Tsinghua U.
16 years 4 months ago
Cryptography by Cellular Automata or How Fast Can Complexity Emerge in Nature?
Computation in the physical world is restricted by the following spatial locality constraint: In a single unit of time, information can only travel a bounded distance in space. A ...
Benny Applebaum, Yuval Ishai, Eyal Kushilevitz