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Intelligent Information and Communication Systems
Searching a traditional OPAC
- Using expert knowledge and expert languages
(subject terms vs. title terms; controlled vs. uncontrolled vocabularies)
- Controlled Vocabulary is unknown to a user
(what are subject terms?)
- Formulating Boolean queries is still difficult
(different semantics of AND and OR in formal and in natural language)
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Example query:
AUTHOR ="jackson, peter" AND
DESCRIPTOR =expert system* AND
PUBLISHER =addison-wesley AND
PUBLICATION-TIME >=1995
