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The clustering power of low frequency words in academic Webs

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  • Liz Price
  • Mike Thelwall

Abstract

The value of low frequency words for subject‐based academic Web site clustering is assessed. A new technique is introduced to compare the relative clustering power of different vocabularies. The technique is designed for word frequency tests in large document clustering exercises. Results for the Australian and New Zealand academic Web spaces indicate that low frequency words are useful for clustering academic Web sites along subject lines; removing low frequency words results in sites becoming, on average, less dissimilar to sites from other subjects.

Suggested Citation

  • Liz Price & Mike Thelwall, 2005. "The clustering power of low frequency words in academic Webs," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 56(8), pages 883-888, June.
    • Handle: RePEc:bla:jamist:v:56:y:2005:i:8:p:883-888
    DOI: 10.1002/asi.20177
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