DefSent+: Improving sentence embeddings of language models by projecting definition sentences into a quasi-isotropic or isotropic vector space of unlimited dictionary entries.
Xiaodong LiuPublished in: CoRR (2024)
Keyphrases
- vector space
- language model
- retrieval model
- sentence retrieval
- language modeling
- vector space model
- document level
- dependency structure
- sentence level
- language modeling approaches
- natural language
- n gram
- relevance model
- latent semantic indexing
- probabilistic model
- similarity search
- document retrieval
- low dimensional
- query expansion
- feature vectors
- document representation
- ir models
- text summarization
- retrieval effectiveness
- context sensitive
- text retrieval
- test collection
- distance measure
- query terms
- information retrieval
- term frequency
- linguistic features
- smoothing methods
- part of speech
- tf idf
- multi document summarization
- co occurrence
- cross lingual
- sentiment analysis