Title
WikiRank: Improving Keyphrase Extraction Based on Background Knowledge.
Abstract
Keyphrase is an efficient representation of the main idea of documents. While background knowledge can provide valuable information about documents, they are rarely incorporated in keyphrase extraction methods. In this paper, we propose WikiRank, an unsupervised method for keyphrase extraction based on the background knowledge from Wikipedia. Firstly, we construct a semantic graph for the document. Then we transform the keyphrase extraction problem into an optimization problem on the graph. Finally, we get the optimal keyphrase set to be the output. Our method obtains improvements over other state-of-art models by more than 2% in F1-score.
Year
Venue
Field
2018
arXiv: Computation and Language
Graph,Computer science,Artificial intelligence,Natural language processing,Optimization problem
DocType
Volume
Citations 
Journal
abs/1803.09000
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Yang Yu12413.21
Vincent Ng213.73