Concept

Improved Concept Embeddings for Learning Prerequisite Chains: Generating Poincaré embeddings from natural-language text corpora

To generate Poincaré embeddings from a natural language text corpus, the author converted the text to a list of directed edges in the format u,v,weightu,v,weight, where vv is a hypernym of uu, as input to the Poincaré embeddings algorithm, using the method described by Dhingra et al. (2018). They constructed a co-occurrence graph G={(u,v)}G = \{(u, v)\} that includes all pairs of words that occur within a fixed window of each other. Each edge (u,v)(u, v) in the graph has a weight w=fcw = f^c, where ff is the frequency of the co-occurrence pairs in the corpus and cc is a downsampling constant.

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Updated 2020-08-04

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Data Science