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Topic Analysis of Superconductivity Literature by Semantic Non-negative Matrix Factorization. (arXiv:2201.00687v1 [cs.DL])
Jan. 4, 2022, 2:10 a.m. | Valentin Stanev, Erik Skau, Ichiro Takeuchi, Boian S. Alexandrov
cs.LG updates on arXiv.org arxiv.org
We utilize a recently developed topic modeling method called SeNMFk,
extending the standard Non-negative Matrix Factorization (NMF) methods by
incorporating the semantic structure of the text, and adding a robust system
for determining the number of topics. With SeNMFk, we were able to extract
coherent topics validated by human experts. From these topics, a few are
relatively general and cover broad concepts, while the majority can be
precisely mapped to specific scientific effects or measurement techniques. The
topics also differ …
analysis arxiv dl factorization literature negative semantic
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