CSO Classifier 3.0: a scalable unsupervised method for classifying documents in terms of research topics
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Published:2021-07-22
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Volume:
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ISSN:1432-5012
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Container-title:International Journal on Digital Libraries
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language:en
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Short-container-title:Int J Digit Libr
Author:
Salatino AngeloORCID, Osborne Francesco, Motta Enrico
Abstract
AbstractClassifying scientific articles, patents, and other documents according to the relevant research topics is an important task, which enables a variety of functionalities, such as categorising documents in digital libraries, monitoring and predicting research trends, and recommending papers relevant to one or more topics. In this paper, we present the latest version of the CSO Classifier (v3.0), an unsupervised approach for automatically classifying research papers according to the Computer Science Ontology (CSO), a comprehensive taxonomy of research areas in the field of Computer Science. The CSO Classifier takes as input the textual components of a research paper (usually title, abstract, and keywords) and returns a set of research topics drawn from the ontology. This new version includes a new component for discarding outlier topics and offers improved scalability. We evaluated the CSO Classifier on a gold standard of manually annotated articles, demonstrating a significant improvement over alternative methods. We also present an overview of applications adopting the CSO Classifier and describe how it can be adapted to other fields.
Publisher
Springer Science and Business Media LLC
Subject
Library and Information Sciences
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