Modelling retrieval models in a probabilistic relational algebra with a new operator: the relational Bayes.
Thomas RöllekeHengzhi WuJun WangHany AzzamPublished in: VLDB J. (2008)
Keyphrases
- relational algebra
- retrieval model
- relational operators
- join operator
- relational model
- probabilistic databases
- data model
- relational calculus
- query language
- expressive power
- language model
- test collection
- document retrieval
- information retrieval systems
- normal form
- relational databases
- relational data model
- information retrieval
- vector space
- complex objects
- database query languages
- query expansion
- relational queries
- database technology
- probabilistic model
- aggregate functions
- retrieval systems
- bayesian networks
- relevance feedback
- user queries
- first order logic
- sql queries
- incomplete information
- functional dependencies
- entity relationship
- database