Albert Weichselbraun

is a Professor of Information Science at the University of Applied of the Grisons.

Using a POS tagger for lexical knowledge acquisition

less than 1 minute read

based on: Litz, Berenike, Langer, Hagen and Malaka, Rainer (2009). ''Trigrams'n'Tags for Lexical Knowledge Acquisition'', First International Conference on Knowledge Discovery and Information Retrieval (KDIR 2009)

The authors apply the Trigram'n'Tags (TnT) approach to the task of detecting hierarchical relations in domain text and compare the results with data obtained from Hearst patterns and a simplistic approach.

Interesting points:

  • application of a POS tagger to relation detection
  • the work is done on the german wikipedia
  • the applied TnT approach, which is supposed to be particularly powerful.

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Suffix array

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The suffix array is a memory-efficient alternative to the suffix tree which provides a sorted list of string indices indicating the string’s suffixes.