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To enable efficient exploration of Webscale scientific knowledge, it is necessary to organize scientific publications into a hierarchical concept structure. In this work, we present a large-scale system to (1) identify hundreds of thousands of scientific concepts, (2) tag these identified concepts to hundreds of millions of scientific publications by leveraging both text and graph structure, and (3) build a six-level concept hierarchy with a subsumption-based model. The system builds the most comprehensive crossdomain scientific concept ontology published to date, with more than 200 thousand concepts and over one million relationships.
Shen et al. (Mon,) studied this question.
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