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134
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INFOCOM
2011
IEEE
14 years 7 months ago
Connectivity maintenance in mobile wireless networks via constrained mobility
—We explore distributed mechanisms for maintaining the physical layer connectivity of a mobile wireless network while still permitting significant area coverage. Moreover, we re...
Joshua Reich, Vishal Misra, Dan Rubenstein, Gil Zu...
117
Voted
ICAI
2008
15 years 5 months ago
Nonrestrictive Concept-Acquisition by Representational Redescription
coarse procedures or very abstract frames from the point of view of algorithm, because some crucial issues like the representation, evolution, storage, and learning process of conc...
Hui Wei, Yan Chen
134
Voted
CSJM
2007
150views more  CSJM 2007»
15 years 3 months ago
An approach for NL text interpretation
For modeling the interpretation process of NL sentences we use the mechanisms implying semantic networks that assure syntactic – semantic text interpretation (SSI), including an...
Anatol Popescu, Sergiu Cretu
152
Voted
FOCS
1998
IEEE
15 years 8 months ago
The Complexity of Acyclic Conjunctive Queries
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
Georg Gottlob, Nicola Leone, Francesco Scarcello
150
Voted
CEC
2010
IEEE
15 years 4 months ago
Constrained global optimization of low-thrust interplanetary trajectories
The optimization of spacecraft trajectories can be formulated as a global optimization task. The complexity of the problem depends greatly on the problem formulation, on the spacec...
Chit Hong Yam, David Di Lorenzo, Dario Izzo