7 search results - page 1 / 2 » Investigating Generative Factors of Score Matrices |
AIED
2007
Springer
13 years 11 months ago
2007
Springer
An implicit assumption in psychometrics and educational statistics is that the generative model for student scores on test questions is governed by the topics of those questions an...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
This paper investigates a Bayesian model and a Markov chain Monte Carlo (MCMC) algorithm for gene factor analysis. Each sample in the dataset is decomposed as a linear combination...
BMCBI
2007
13 years 5 months ago
2007
Background: Detection of short, subtle conserved motif regions within a set of related DNA or amino acid sequences can lead to discoveries about important regulatory domains such ...
BMCBI
2008
13 years 5 months ago
2008
Background: Nonnegative matrix factorization (NMF) is a feature extraction method that has the property of intuitive part-based representation of the original features. This uniqu...
BMCBI
2008
13 years 5 months ago
2008
Background: Prediction of bacterial virulent protein sequences has implications for identification and characterization of novel virulence-associated factors, finding novel drug/v...