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PODS
2007
ACM
203views Database» more  PODS 2007»
15 years 10 months ago
Decision trees for entity identification: approximation algorithms and hardness results
We consider the problem of constructing decision trees for entity identification from a given relational table. The input is a table containing information about a set of entities...
Venkatesan T. Chakaravarthy, Vinayaka Pandit, Samb...
APPROX
2005
Springer
136views Algorithms» more  APPROX 2005»
15 years 3 months ago
What About Wednesday? Approximation Algorithms for Multistage Stochastic Optimization
The field of stochastic optimization studies decision making under uncertainty, when only probabilistic information about the future is available. Finding approximate solutions to...
Anupam Gupta, Martin Pál, R. Ravi, Amitabh ...
CIAC
2010
Springer
194views Algorithms» more  CIAC 2010»
15 years 2 months ago
An Algorithmic Framework for Motif Discovery Problems in Weighted Sequences
A weighted sequence is a string in which a set of characters may appear at each position with respective probabilities of occurrence. A common task is to locate a given motif in a ...
Hui Zhang, Qing Guo, Costas S. Iliopoulos
EVOW
2006
Springer
15 years 1 months ago
Fast EAX Algorithm Considering Population Diversity for Traveling Salesman Problems
This paper proposes an evolutionary algorithm (EA) that is applied to the traveling salesman problem (TSP). Existing approximation methods to address the TSP known to be state-of-t...
Yuichi Nagata
IWPEC
2009
Springer
15 years 4 months ago
An Exponential Time 2-Approximation Algorithm for Bandwidth
The bandwidth of a graph G on n vertices is the minimum b such that the vertices of G can be labeled from 1 to n such that the labels of every pair of adjacent vertices differ by ...
Martin Fürer, Serge Gaspers, Shiva Prasad Kas...