TY - GEN
T1 - Experiments with hierarchical concept-based search
AU - Moskovitch, Robert
AU - Sa'Adon, Roee
AU - Behiri, Eytan
AU - Martins, Susana
AU - Weiss, Aviram
AU - Shahar, Yuval
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Many digital libraries use hierarchical indexing schema, such as MeSH to enable concept based search in the retrieval phase. However, improving or outperforming the traditional full text search isn't trivial. We present an extensive set of experiments using a hierarchical concept based search retrieval method, applied in addition to several baselines, within the Vaidruya search and retrieval framework. Concept Based Search applied in addition to a low baseline is outperforming significantly, especially when queried on concepts in the third level and using disjunction within the hierarchical trees.
AB - Many digital libraries use hierarchical indexing schema, such as MeSH to enable concept based search in the retrieval phase. However, improving or outperforming the traditional full text search isn't trivial. We present an extensive set of experiments using a hierarchical concept based search retrieval method, applied in addition to several baselines, within the Vaidruya search and retrieval framework. Concept Based Search applied in addition to a low baseline is outperforming significantly, especially when queried on concepts in the third level and using disjunction within the hierarchical trees.
KW - concept based search
KW - medical text retrieval
UR - http://www.scopus.com/inward/record.url?scp=38449088841&partnerID=8YFLogxK
M3 - Conference contribution
C2 - 17911752
AN - SCOPUS:38449088841
SN - 9781586037741
T3 - Studies in Health Technology and Informatics
SP - 422
EP - 426
BT - MEDINFO 2007 - Proceedings of the 12th World Congress on Health (Medical) Informatics
PB - IOS Press
T2 - 12th World Congress on Medical Informatics, MEDINFO 2007
Y2 - 20 August 2007 through 24 August 2007
ER -