This paper studied the method of ontology-based knowledge representation, on this basis built a shared, reusable, scalable food safety domain ontology described in the form of OWL,formed a more complete food safety knowledgernrepresentation system, which was applied to build food safety knowledge base；presented a reasoning method based on food safety ontology,designed the reasoning rules used for Jena-based food safety knowledge reasoning according to semantic relations between food safety concepts, in order to effectively share and reuse food safety knowledge；proposed a new query expansion method which combined ontology and natural language processing techniques, in which a variety of relationship types are used；finally designed and implemented a food safety events semantics retrieval system, which not only has some intelligence, but also has better performance than keyword-based retrieval system which was verified by experiments.
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机译：metodi microbiologici Tradizionali e metodi moleculeolari per l'analisi degli integratori alimentari a base di o con probiotici per ujso umano（microbiological and molecular methods for analysis of probiotic Based Food supplements for Human Consumption）。
