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All Journal Seminar Nasional Teknologi Informasi Komunikasi dan Industri
Surya Agustian
Teknik Informatika, FST UIN Suska Riau
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mathematics

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Penerapan Model OKAPI BM25 Pada Sistem Temu Kembali Informasi Rizqa Raaiqa Bintana; Surya Agustian
Seminar Nasional Teknologi Informasi Komunikasi dan Industri 2012: SNTIKI 4
Publisher : UIN Sultan Syarif Kasim Riau

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Abstract

The rapid growth of information and digital documents has caused the process to retrieve desire documents becomes more difficult when performed manually. Therefore, an information retrieval system is needed as the search engine to find relevant documents as user desire. This research is to develop a information retrieval system based on OKAPI BM25 model. Two main steps would do in build an information retrieval system with Okapi BM25 model are preprocessing and applied the model to it. The preprocessing steps are collection of document (corpus), tokenization, linguistic preprocessing, and indexing by creating an inverted index. After preprocessing, applied Okapi BM25 model to the system to compute the relevant value between each document to user’s query. The system retrieve a list of documents which in descending sort based on relevant value. System performance is measured by calculating precision and recall. Experiment on several query key, shows a good performance where precision value about 74%-92% and 100% recall. This system is portable so it can be applied to the local server to meet the needs of the organization in finding a document in accordance with its documents collection.Keywords : Information Retrieval, Okapi BM25, Precision, Recall.
Co-Authors Rizqa Raaiqa Bintana