36th Annual Hawaii International Conference on System Sciences, 2003. Proceedings of the (2003)
Big Island, Hawaii
Jan. 6, 2003 to Jan. 9, 2003
Udo Hahn , Freiburg University
Martin Honeck , Freiburg University Hospital
Stefan Schulz , Freiburg University Hospital
Document retrieval in languages with a rich and complex morphology — particularly in terms of derivation and (single-word) composition — suffers from serious performance degradation with the stemming-only query-term-to-text-word matching paradigm. We propose an alternative approach in which morphologically complex word forms are segmented into relevant subwords (such as stems, prefixes, suffixes), and subwords constitute the basic unit for indexing and retrieval. We evaluate our approach on a large biomedical document collection.
U. Hahn, M. Honeck and S. Schulz, "Subword-Based Text Retrieval," 36th Annual Hawaii International Conference on System Sciences, 2003. Proceedings of the(HICSS), Big Island, Hawaii, 2003, pp. 108a.