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ICML
2008
IEEE
14 years 11 months ago
Estimating local optimums in EM algorithm over Gaussian mixture model
EM algorithm is a very popular iteration-based method to estimate the parameters of Gaussian Mixture Model from a large observation set. However, in most cases, EM algorithm is no...
Zhenjie Zhang, Bing Tian Dai, Anthony K. H. Tung
PKDD
2004
Springer
131views Data Mining» more  PKDD 2004»
14 years 3 months ago
Asynchronous and Anticipatory Filter-Stream Based Parallel Algorithm for Frequent Itemset Mining
Abstract In this paper we propose a novel parallel algorithm for frequent itemset mining. The algorithm is based on the filter-stream programming model, in which the frequent item...
Adriano Veloso, Wagner Meira Jr., Renato Ferreira,...
3DPVT
2002
IEEE
219views Visualization» more  3DPVT 2002»
14 years 3 months ago
A Multi-Resolution Scheme ICP Algorithm for Fast Shape Registration
The iterative closest point (ICP) algorithm is widely used for the registration of geometric data. One of its main drawbacks is its quadratic time complexity O(N2 ) with the shape...
Timothée Jost, Heinz Hügli
APCCAS
2006
IEEE
261views Hardware» more  APCCAS 2006»
14 years 4 days ago
A Grouped Fast Fourier Transform Algorithm Design For Selective Transformed Outputs
- In this paper, the grouped scheme is specially applied to compute the fast Fourier transform (FFT) when the portions of transformed outputs are calculated selectively. The groupe...
Chih-Peng Fan, Guo-An Su
ICML
2003
IEEE
14 years 11 months ago
Hierarchical Policy Gradient Algorithms
Hierarchical reinforcement learning is a general framework which attempts to accelerate policy learning in large domains. On the other hand, policy gradient reinforcement learning...
Mohammad Ghavamzadeh, Sridhar Mahadevan