V. EXPERIMENT AND EVALUATION
We evaluate the effectiveness of our techniques using
the two classical measurements for a retrieval system, the
recall and precision. First, we built ontology for the
Computer Science domain and collected more than 10,000
documents, mostly papers, e-book and some theses. Those
documents are used to create several experimental
document retrieval systems as per SDB model, the size of
which varying from 1000, 2000, 5000 to 10,000
documents. We test each system with 100 queries and
calculate then average recall and precision over those 100
queries. The result is compared with the performance of
the old techniques and record in the below charts:
V. EXPERIMENT AND EVALUATIONWe evaluate the effectiveness of our techniques usingthe two classical measurements for a retrieval system, therecall and precision. First, we built ontology for theComputer Science domain and collected more than 10,000documents, mostly papers, e-book and some theses. Thosedocuments are used to create several experimentaldocument retrieval systems as per SDB model, the size ofwhich varying from 1000, 2000, 5000 to 10,000documents. We test each system with 100 queries andcalculate then average recall and precision over those 100queries. The result is compared with the performance ofthe old techniques and record in the below charts:
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