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ICLP
2009
Springer
15 years 10 months ago
Finding Similar or Diverse Solutions in Answer Set Programming
We study finding similar or diverse solutions of a given computational problem, in answer set programming, and introduce offline methods and online methods to compute them using an...
Thomas Eiter, Esra Erdem, Halit Erdogan, Michael F...
IWPEC
2004
Springer
15 years 3 months ago
A Structural View on Parameterizing Problems: Distance from Triviality
Based on a series of known and new examples, we propose the generalized setting of “distance from triviality” measurement as a reasonable and prospective way of determining use...
Jiong Guo, Falk Hüffner, Rolf Niedermeier
WADS
2007
Springer
184views Algorithms» more  WADS 2007»
15 years 3 months ago
A Pseudopolynomial Time O (log n )-Approximation Algorithm for Art Gallery Problems
In this paper, we give a O(log copt)-approximation algorithm for the point guard problem where copt is the optimal number of guards. Our algorithm runs in time polynomial in n, the...
Ajay Deshpande, Taejung Kim, Erik D. Demaine, Sanj...
MOR
2008
169views more  MOR 2008»
14 years 9 months ago
The Flow Set with Partial Order
The flow set with partial order is a mixed-integer set described by a budget on total flow and a partial order on the arcs that may carry positive flow. This set is a common substr...
Alper Atamtürk, Muhong Zhang
IJSNET
2006
110views more  IJSNET 2006»
14 years 9 months ago
Improving network lifetime using sensors with adjustable sensing ranges
Abstract: This paper addresses the target coverage problem in wireless sensor networks with adjustable sensing range. Communication and sensing consume energy, therefore efficient ...
Mihaela Cardei, Jie Wu, Mingming Lu