Using Random Walks for Question-focused Sentence Retrieval.

Jahna Otterbacher Günes Erkan Dragomir R. Radev

Published in: HLT/EMNLP (2005)

Keyphrases

random walk
sentence retrieval
markov chain
question answering
novelty detection
retrieval systems
directed graph
retrieval model
language modeling
language model
query expansion
anomaly detection
active learning
singular value decomposition
latent semantic indexing