RANCANG BANGUN ONLINE PUBLIC ACCESS CATALOG (OPAC) BERBASIS WEB SEMANTIK; DESIGN AND IMPLEMENTATION OF ONLINE PUBLIC ACCESS CATALOG (OPAC) ON BASED SEMANTIC WEB

ANDRI, Ahmad Ashari

2011 | Disertasi | PROGRAM STUDI S2 ILMU KOMPUTER

Online catalog (OPAC) is the library catalog system that uses computers. This catalog provides a collection of bibliographic information. Catalog are usually designed to simplify the user. In general, search service available in the library catalog system based on the index. Index information is returned only the information that meets the properties represented by the metadata. This technique exploits only syntatic word, so that irrelevant information is returned, the results are usually not fulfill what is expected. In this research make a prototype library catalog search application on based semantic web technologies. Semantic technology enables describing objects and repositories in the form of ontology. Ontology representing knowledge at the level of semantics because semantic ontology contains entities (concept, relation, and instance) instead of words. This application is built using the approach NLP (Natural Language Processing) is used to process the sentences as a keyword search and SKOS (Simple Knowledge Organization System) approach to represent the semantics between resources. SKOS approach can help to represent and organize vocabulary. SKOS effectively used as on of semantic-based approach because it provide a modelling structure for equivalent word vocabulary (thesauri), which allows a document can be linked to other documents, so that the document no longer stand alone but rather a document that has a mutual relation. From some combination of semantic web technologies NLP above are able to provide search results to users with richer information presented. This application provided a service to perform conversion of data in a relational database format of MySQL database into a knowledge base (ontology), making it easier to update the existing data in the system.

Kata Kunci : katalog, web semantik, OWL, NLP, SKOS, basis data, MySQL