Undirected Graphical Models for Text & Image
Lecture slides:
- Undirected Graphical Models for Test and Images
- Overview
- The Vector Space Model
- The Corpora Matrix
- Feature Vector Representation
- Motivation for modeling latent t opical aspects
- Latent Semantic Indexing
- Singular Value Decomposition
- Latent Semantic Structure
- Two layer Bayesian network
- Probabilistic LSI
- Comparison of model semantics
- Properties of Directed Networks (1)
- Properties of Directed Networks (2)
- Two-layer Markov Random Fields
- The Undirected Alternative
- Properties of Harmoniums
- A Constructive Definition (1)
- A Constructive Definition (2)
- The Computational Trade-off
- A Harmonium for IR
- A Binomial Word-count Model
- Comparison of model semantics
- Comparison of text-models
- Comparison of topic representation
- Multi-Source Data
- GM-mixture
- The Harmonium Counterpart
- Inter-Source Associations
- Multi-wing Harmoniums
- Examples of Latent Topics
- Classification
- Retrieval
- Precision-recall
- Annotation
- Conclusions
- Conclusions, con'd
Author: Eric Xing, Carnegie Mellon University