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Practical Ontology Morteza Ansarinia

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Outline • Introduction • Tools • NeON Toolkit • Protégé • Basics • Visualization • Inference • Plugins • Examples • Representation • Problem Solving

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Introduction •What is an ontology? •Where do I start?

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Knowledge as Graph Data

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Statements or Triples < subject, predicate, object > example: < Attack, causedBy, Vulnerability > < Vulnerability, relatedTo, Weakness >

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Tools - NeON Toolkit

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Tools - Protégé

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Tools - Protégé • Free, open source ontology editor and knowledge based framework • is being developed at Stanford University, and University of Manchester • Protégé-owl (3.x and 4.x), Protégé-frame, and WebProtégé

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Tools - Protégé

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Protégé as Ontology Designer

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Protégé as Knowledge Base Framework

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Protégé as Knowledge Base Framework

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Protégé - Visualization

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Protégé - Reasoning

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Examples

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Example: Shared IDS Knowledge Knowledge Representation

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Example: Attack Prediction Problem Solving

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Example: Attack Prediction Problem Solving

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Automatic Knowledge Convert

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Logic Storage Programming Interface Inference Engine DL Iterator State Graph Model Static (Ontologies) Dynamic Attack KB Vulnerability KB Time Course System Information Weakness KB Prediction State Update

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