Extracting Keywords from Texts based on Word Frequency and Association Features
Zhenzhen Xu, Junsheng Zhang
Abstract
With the development of information technology such as mobile Internet and social media applications, network information is growing rapidly and leads to the problem of information overload. Keywords help to filter and find interesting information for users from massive text. Automatic extraction of keywords from text as tags of text help to improve recommendation and keyword-based information retrieval. This paper proposes a novel keyword extraction approach from text that combines features such as word frequency and association. Experiment results show that the precision rate, recall rate and F-measure are all better than those of TextRank and TF-IDF.
Topics & Concepts
Computer scienceRecall rateKeyword extractionWord (group theory)Information overloadFilter (signal processing)Information retrievalRecallWord lists by frequencyThe InternetAssociation (psychology)Information extractionPrecision and recallNatural language processingArtificial intelligenceWorld Wide WebEpistemologyPhilosophyComputer visionLinguisticsSentenceAdvanced Text Analysis Techniques