@article{YOUNGWHAN,
abstract = {This paper discusses a knowledge based information retreval model with hierarchical thesaurus. The model computes the conceptual distance between a query and an object and both are indexed with weighted terms from a hierarchical thesaurus. The hierarchical thesaurus is represented by a hierarchical-concept graph (HCG) in which nodes represent concepts and directed edges represent generalisation relationships. A scheme for allowing Boolean operators in user queries is provided with a formula for computing conceptual distance from negated index terms. Experimental results have shown that this model simulates human performance more closely than Rada's model},
author = {{Young Whan}, Kim and Kim, J. H.},
issn = {0022-0418},
journal = {Journal of documentation},
keywords = {Architecture syst\`{e}me,Arquitectura sistema,Automated processing,Base connaissance,Base conocimiento,Concept,Concept graph,Conception,Concepto,Design,Dise\~{n}o,Distance,Distancia,Document retrieval,Document retrieval system,Documentation data processing,Estr\'{u}ctura tesauro,Expert system,Graphe concept,Informaci\'{o}n documental,Information retrieval,Informatique documentaire,Knowledge base,Modelo,Models,Mod\`{e}le,Object,Objet,Objeto,Pregunta documental,Query,Question documentaire,Recherche documentaire,Recherche information,Recuperaci\'{o}n documental,Recuperaci\'{o}n informaci\'{o}n,SML-LIB-BIBLIO,Sistema experto,Sistema recuperaci\'{o}n documental,Structure thesaurus,System architecture,Syst\`{e}me documentaire,Syst\`{e}me expert,Tesaurus,Thesaurus,Thesaurus structure,Traitement automatis\'{e},Tratamiento automatizado,lang:ENG},
language = {eng},
mendeley-tags = {SML-LIB-BIBLIO,lang:ENG},
number = {2},
pages = {113--136},
publisher = {Emerald},
title = {{A model of knowledge based information retrieval with hierarchical concept graphs}},
url = {http://cat.inist.fr/?aModele=afficheN\&cpsidt=19357562},
volume = {46},
year = {1990}
}