Additive Smoothing for Relevance-Based Language Modelling of Recommender Systems.
Daniel ValcarceJavier ParaparÁlvaro BarreiroPublished in: CERI (2016)
Keyphrases
- language modelling
- recommender systems
- user ratings
- language model
- language models for information retrieval
- document ranking
- relevance model
- smoothing methods
- collaborative filtering
- n gram
- information retrieval
- test collection
- ad hoc retrieval
- language modeling
- pseudo relevance feedback
- user preferences
- information overload
- document retrieval
- tf idf
- matrix factorization
- weighting scheme
- relevance feedback
- ranked list
- retrieved documents
- vector space model
- query expansion
- recommendation algorithms
- probabilistic model
- semantic similarity
- query terms
- retrieval systems
- bag of words
- topic models
- user profiles
- document collections
- search engine