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» The Expression Problem Revisited
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MFCS
2004
Springer
14 years 23 days ago
Complexity of Decision Problems for Simple Regular Expressions
We study the complexity of the inclusion, equivalence, and intersection problem for simple regular expressions arising in practical XML schemas. These basically consist of the conc...
Wim Martens, Frank Neven, Thomas Schwentick
TSMC
2010
13 years 2 months ago
A Mathematical Programming Solution to the Mars Express Memory Dumping Problem
The memory dumping problem arises in the context of planning and scheduling activities of the Mars Express mission of the European Space Agency. The problem consists of scheduling...
Giovanni Righini, Emanuele Tresoldi
DCC
2007
IEEE
14 years 7 months ago
Low-density attack revisited
The low-density attack proposed by Lagarias and Odlyzko is a powerful algorithm against the subset sum problem. The improvement algorithm due to Coster et al. would solve almost a...
Tetsuya Izu, Jun Kogure, Takeshi Koshiba, Takeshi ...
COCOON
2009
Springer
14 years 2 months ago
Convex Recoloring Revisited: Complexity and Exact Algorithms
We take a new look at the convex path recoloring (CPR), convex tree recoloring (CTR), and convex leaf recoloring (CLR) problems through the eyes of the independent set problem. Th...
Iyad A. Kanj, Dieter Kratsch
CPAIOR
2007
Springer
14 years 1 months ago
Preprocessing Expression-Based Constraint Satisfaction Problems for Stochastic Local Search
Abstract. This work presents methods for processing a constraint satisfaction problem (CSP) formulated by an expression-based language, before the CSP is presented to a stochastic ...
Sivan Sabato, Yehuda Naveh