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LICS
2006
IEEE
14 years 3 months ago
Boolean Algebras for Lambda Calculus
In this paper we show that the Stone representation theorem for Boolean algebras can be generalized to combinatory algebras. In every combinatory algebra there is a Boolean algebr...
Giulio Manzonetto, Antonino Salibra
SIGIR
2006
ACM
14 years 3 months ago
LDA-based document models for ad-hoc retrieval
Search algorithms incorporating some form of topic model have a long history in information retrieval. For example, cluster-based retrieval has been studied since the 60s and has ...
Xing Wei, W. Bruce Croft
SMA
2003
ACM
123views Solid Modeling» more  SMA 2003»
14 years 2 months ago
Collision prediction for polyhedra under screw motions
The prediction of collisions amongst N rigid objects may be reduced to a series of computations of the time to first contact for all pairs of objects. Simple enclosing bounds and...
ByungMoon Kim, Jarek Rossignac
AUTOMATICA
2008
154views more  AUTOMATICA 2008»
13 years 9 months ago
Approximately bisimilar symbolic models for nonlinear control systems
Control systems are usually modeled by differential equations describing how physical phenomena can be influenced by certain control parameters or inputs. Although these models ar...
Giordano Pola, Antoine Girard, Paulo Tabuada
PODC
2006
ACM
14 years 3 months ago
Quorum placement in networks: minimizing network congestion
A quorum system over a universe of logical elements is a collection of subsets (quorums) of elements, any two of which intersect. In numerous distributed algorithms, the elements ...
Daniel Golovin, Anupam Gupta, Bruce M. Maggs, Flor...