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COCOON
2005
Springer
15 years 9 months ago
On the Approximation of Computing Evolutionary Trees
Given a set of leaf-labelled trees with identical leaf sets, the well-known MAST problem consists of finding a subtree homeomorphically included in all input trees and with the la...
Vincent Berry, Sylvain Guillemot, François ...
COCOON
2005
Springer
15 years 9 months ago
A Quadratic Lower Bound for Rocchio's Similarity-Based Relevance Feedback Algorithm
Rocchio’s similarity-based relevance feedback algorithm, one of the most important query reformation methods in information retrieval, is essentially an adaptive supervised lear...
Zhixiang Chen, Bin Fu
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COCOON
2005
Springer
15 years 9 months ago
Oblivious and Adaptive Strategies for the Majority and Plurality Problems
In the well-studied Majority problem, we are given a set of n balls colored with two or more colors, and the goal is to use the minimum number of color comparisons to find a ball ...
Fan R. K. Chung, Ronald L. Graham, Jia Mao, Andrew...
COCOON
2005
Springer
15 years 9 months ago
On Sequential and 1-Deterministic P Systems
Abstract. The original definition of P-systems calls for rules to be applied in a maximally parallel fashion. However, in some cases a sequential model may be a more reasonable as...
Oscar H. Ibarra, Sara Woodworth, Hsu-Chun Yen, Zhe...
COCOON
2005
Springer
15 years 9 months ago
Exploring Simple Grid Polygons
Abstract. We investigate the online exploration problem of a shortsighted mobile robot moving in an unknown cellular room without obstacles. The robot has a very limited sensor; it...
Christian Icking, Thomas Kamphans, Rolf Klein, Elm...