Stemming Indonesian: A confix-stripping approach

  • Authors:
  • Mirna Adriani;Jelita Asian;Bobby Nazief;S. M.M. Tahaghoghi;Hugh E. Williams

  • Affiliations:
  • University of Indonesia;RMIT University;University of Indonesia;RMIT University;Microsoft

  • Venue:
  • ACM Transactions on Asian Language Information Processing (TALIP)
  • Year:
  • 2007

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Abstract

Stemming words to (usually) remove suffixes has applications in text search, machine translation, document summarization, and text classification. For example, English stemming reduces the words "computer," "computing," "computation," and "computability" to their common morphological root, "comput-." In text search, this permits a search for "computers" to find documents containing all words with the stem "comput-." In the Indonesian language, stemming is of crucial importance: words have prefixes, suffixes, infixes, and confixes that make matching related words difficult. This work surveys existing techniques for stemming Indonesian words to their morphological roots, presents our novel and highly accurate CS algorithm, and explores the effectiveness of stemming in the context of general-purpose text information retrieval through ad hoc queries.