Hierarchical Concept-Driven Language Model.
Yashen WangHuanhuan ZhangZhirun LiuQiang ZhouPublished in: ACM Trans. Knowl. Discov. Data (2021)
Keyphrases
- language model
- language modeling
- document retrieval
- information retrieval
- n gram
- query expansion
- retrieval model
- speech recognition
- probabilistic model
- statistical language models
- ad hoc information retrieval
- language modelling
- context sensitive
- statistical machine translation
- query terms
- mixture model
- test collection
- pseudo relevance feedback
- translation model
- smoothing methods
- language models for information retrieval
- word clouds
- document ranking