21 search results - page 1 / 5 » Comparison of Poisson Mixture Models for Count Data Clusteri... |
INFORMATICALT
2002
13 years 4 months ago
2002
Abstract. Five methods for count data clusterization based on Poisson mixture models are described. Two of them are parametric, the others are semi-parametric. The methods emlploy ...
CSDA
2006
13 years 5 months ago
2006
An approach to simultaneous document classification and word clustering is developed using a two-way mixture model of Poisson distributions. Each document is represented by a vect...
BMCBI
2007
13 years 5 months ago
2007
Background: Serial analysis of gene expression (SAGE) is used to obtain quantitative snapshots of the transcriptome. These profiles are count-based and are assumed to follow a Bin...
ICIP
2008
IEEE
14 years 7 months ago
2008
IEEE
We present an improved statistical model of Poisson processes, with applications in photon-limited imaging. We build on previous work, adopting a multiscale representation of the ...
ACL
2003
13 years 6 months ago
2003
It is well known that occurrence counts of words in documents are often modeled poorly by standard distributions like the binomial or Poisson. Observed counts vary more than simpl...