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Gibbs sampling for microarray data analysis

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Gibbs sampling for microarray data analysis

1. Introduction 1.1 Goal of the study

Draw backs of conventional clustering algorithms The need of integration of different data sources

 Biclustering algorithm 1.2 Achievements

2. Microarray 2.1 The technology

2.2 Characteristics of microarray data

2.3 An important tool for bioinformatics, but can’t explain everything – the need to integrate the other sources

3. Clustering

3.1 First generation algorithms 3.2 Second generation algorithms 3.3 Biclustering algorithms

2.4 Gibbs sampling: the basic idea, the introduction of Gibbs sampling method to bioinformatics (i.e. its application to motif-finding problems), why Gibbs sampling for the biclustering problem

4. Bayesian models for microarray data analysis and Gibbs sampling 4.1 Basic ideas of Bayesian methods: posterior  likelihood * prior 4.2 Applying Bayesian models on microarray data

4.2.1 Advantages

4.2.2 Which distributions to choose: taking into the account of the noisy characteristics of microarray data

4.2.3 The preprocessing of microarray data: (in order to apply the specified models) 4.3 Gibbs sampling

5. Biclustering for patient data 5.1 The discrete model

5.2 The Gibbs sampling strategy 5.3 Query-driven biclusteing

Construction of the priors:

5.4 Influence of the parameters

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5.5 Case study

6. Biclustering of genes 6.1 The continuous model 6.2 Model for time-sequence data 6.3 The Gibbs sampling strategy 6.4 Query-driven biclustering

Construction of the prior 6.5 Influence of the parameter 6.6 Case study

7. Conclusions

7.1 Comparison of the Gibbs biclustering strategy to other methods:

Comparison between Bayesian and non-Bayesian methods Parameterization: Gibbs sampling vs. EM

8. Future work:

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