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» Algorithms for Clustering Data
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FQAS
2004
Springer
126views Database» more  FQAS 2004»
16 years 26 days ago
Cluster Characterization through a Representativity Measure
Clustering is an unsupervised learning task which provides a decomposition of a dataset into subgroups that summarize the initial base and give information about its structure. We ...
Marie-Jeanne Lesot, Bernadette Bouchon-Meunier
ICMCS
2006
IEEE
142views Multimedia» more  ICMCS 2006»
16 years 1 months ago
FEMA: A Fast Expectation Maximization Algorithm based on Grid and PCA
EM algorithm is an important unsupervised clustering algorithm, but the algorithm has several limitations. In this paper, we propose a fast EM algorithm (FEMA) to address the limi...
Zhiwen Yu, Hau-San Wong
218
Voted
NBIS
2007
Springer
16 years 1 months ago
Implementing Range Queries with a Decentralized Balanced Tree over Distributed Hash Tables
Range queries, retrieving all keys within a given range, is an important add-on for Distributed Hash Tables (DHTs), as they rely only on exact key matching lookup. In this paper we...
Nuno Lopes, Carlos Baquero
210
Voted
SSDBM
2005
IEEE
159views Database» more  SSDBM 2005»
16 years 1 months ago
Clustering Moving Objects via Medoid Clusterings
Modern geographic information systems do not only have to handle static information but also dynamically moving objects. Clustering algorithms for these moving objects provide new...
Hans-Peter Kriegel, Martin Pfeifle
GECCO
2003
Springer
139views Optimization» more  GECCO 2003»
16 years 21 days ago
Daily Stock Prediction Using Neuro-genetic Hybrids
We propose a neuro-genetic daily stock prediction model. Traditional indicators of stock prediction are utilized to produce useful input features of neural networks. The genetic al...
Yung-Keun Kwon, Byung Ro Moon