Unsupervised Clustering for Negative Sampling to Optimize Open-Domain Question Answering Retrieval.
Feiqing ZhuangConghui ZhuTiejun ZhaoPublished in: NLPCC (2) (2023)
Keyphrases
- unsupervised clustering
- open domain question answering
- supervised classification
- information retrieval
- clustering method
- question answering
- retrieval systems
- k means
- image segmentation
- document retrieval
- clustering algorithm
- semi supervised clustering
- information retrieval systems
- image retrieval
- document clustering
- answer extraction
- fuzzy c means
- query expansion
- spectral clustering
- artificial intelligence
- probabilistic model
- knowledge base
- text retrieval
- relevance feedback