Unsupervised Clustering for Negative Sampling to Optimize Open-Domain Question Answering Retrieval.

Feiqing Zhuang Conghui Zhu Tiejun Zhao

Published 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