147 search results - page 6 / 30 » Optimization and Simplification of Hierarchical Clusterings |
PRL
1998
13 years 7 months ago
1998
In this paper we propose an encoding scheme and ad hoc operators for a genetic approach to hierarchical graph clustering. Given a connected graph whose vertices correspond to poin...
SIGIR
2000
ACM
13 years 11 months ago
2000
ACM
We investigate four hierarchical clustering methods (single-link, complete-link, groupwise-average, and single-pass) and two linguistically motivated text features (noun phrase he...
TSMC
2008
13 years 7 months ago
2008
Differential evolution (DE) has emerged as one of the fast, robust, and efficient global search heuristics of current interest. This paper describes an application of DE to the aut...
SDM
2007
SIAM
13 years 8 months ago
2007
SIAM
In this paper, we explore the discriminating subsequencebased clustering problem. First, several effective optimization techniques are proposed to accelerate the sequence mining p...
TNN
1998
13 years 7 months ago
1998
— In this paper, we present a novel approach to partitioning pattern spaces using a multiobjective genetic algorithm for identifying (near-)optimal subspaces for hierarchical lea...