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COMPGEOM
2009
ACM
14 years 3 months ago
Near-linear approximation algorithms for geometric hitting sets
Given a set system (X, R), the hitting set problem is to find a smallest-cardinality subset H ⊆ X, with the property that each range R ∈ R has a non-empty intersection with H...
Pankaj K. Agarwal, Esther Ezra, Micha Sharir
SOFSEM
1998
Springer
14 years 26 days ago
Determining Type of TIL Construction with Verb Valency Analyser
In our paper we discuss an approach to semiautomatic corpus processing aimed at analysing verb valencies in Czech and consecutive determining the type of TIL (Transparent Intension...
Pavel Smrz, Ales Horák
CSR
2006
Springer
14 years 10 days ago
Expressiveness of Metric Modalities for Continuous Time
Abstract. We prove a conjecture by A. Pnueli and strengthen it showing a sequence of "counting modalities" none of which is expressible in the temporal logic generated by...
Yoram Hirshfeld, Alexander Moshe Rabinovich
AO
2007
80views more  AO 2007»
13 years 8 months ago
Problems in the ontology of computer programs
As a first step in the larger project of charting the ontology of computer programs, we pose three central questions: (1) Can programs, hardware, and metaprograms be organized into...
Amnon H. Eden, Raymond Turner
MFCS
1998
Springer
14 years 26 days ago
Flow Logic for Imperative Objects
We develop a control flow analysis for the Imperative Object Calculus. We prove the correctness with respect to two Structural Operational Semantics that differ in minor technical ...
Flemming Nielson, Hanne Riis Nielson