Tackling Sparsity, the Achilles Heel of Social Networks: Language Model Smoothing via Social Regularization.
Rui YanXiang LiMengwen LiuXiaohua HuPublished in: ACL (2) (2015)
Keyphrases
- language model
- social networks
- smoothing methods
- language modeling
- language models for information retrieval
- social media
- probabilistic model
- statistical language modeling
- language modeling approaches
- n gram
- social network analysis
- social networking
- document retrieval
- document length
- dirichlet prior
- query expansion
- retrieval model
- context sensitive
- speech recognition
- information retrieval
- mixture model
- language modelling
- jelinek mercer
- statistical language models
- high dimensional
- social web
- test collection
- online social networks
- link prediction
- relevance model
- network structure
- language modeling framework
- ad hoc information retrieval
- pseudo relevance feedback
- online communities
- prior information
- cross lingual