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Johnson, A.; Fotouhi, F.: Adaptive clustering of hypermedia documents (1996)
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Miyamoto, S.: Information clustering based an fuzzy multisets (2003)
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Cai, X.; Li, W.: Enhancing sentence-level clustering with integrated and interactive frameworks for theme-based summarization (2011)
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Golub, K.: Automatic subject indexing of text (2019)
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