Dirichlet Aspect Weighting: A Generalized EM Algorithm for Integrating External Data Fields with Semantically Structured Queries by Using Gradient Projection Method.
Atulya VelivelliThomas S. HuangPublished in: ICDM (2006)
Keyphrases
- external data
- generalized em algorithm
- structured queries
- gradient projection method
- mixture model
- data warehouse
- structured data
- data modeling
- information retrieval systems
- information retrieval
- image segmentation
- em algorithm
- metadata
- xml documents
- query processing
- query execution
- semantic information
- multi dimensional
- information extraction
- xml data
- document collections
- retrieval model
- databases
- data analysis
- text documents
- database design
- wordnet
- unsupervised learning
- relevance feedback