'Expressive power' diaporamas de présentation

Chapter 4 OWL

Chapter 4 OWL. Based on slides from Grigoris Antoniou and Frank van Harmelen. Outline. A bit of history Basic Ideas of OWL The OWL Language Examples The OWL Namespace OWL 2. The OWL Family Tree. Logic Programming. SHOE. DAML. RDF/RDF(S). DAML-ONT. Joint EU/US Committee. DAML+OIL.

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Information Integration: A Status Report

Information Integration: A Status Report. Alon Halevy University of Washington, Seattle IJCAI 2003. Mediated Schema. Entity. Sequenceable Entity. Structured Vocabulary. Experiment. Phenotype. Gene. Nucleotide Sequence. Microarray Experiment. Protein. OMIM. HUGO. Swiss- Prot. GO.

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First order theories

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Knowledge Representation

Knowledge Representation. Outline: Output - Knowledge representation. Decision tables Decision trees Decision rules Rules involving relations Instance-based representation Prototypes, Clusters. witten&eibe. Output: representing structural patterns.

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Knowledge Representation

Knowledge Representation. Outline: Output - Knowledge representation. Decision tables Decision trees Decision rules Rules involving relations Instance-based representation Prototypes, Clusters. witten&eibe. Output: representing structural patterns.

475 views • 34 slides

First order theories

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LING/C SC/PSYC 438/538 Computational Linguistics

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Formal Model and Analysis of Usage Control

Formal Model and Analysis of Usage Control. Dissertation defense Student: Xinwen Zhang Director: Ravi S. Sandhu Co-director: Francesco Parisi-Presicce Department of Information and Software Engineering School of Information Technology and Engineering George Mason University, Fall 2005.

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Objects

Objects. Objects are at the heart of the Object Oriented Paradigm What is an object?. Objects. We are surrounded by objects. In this class room there are desks, blackboards, lights , chairs and so on. Each object has specific attributes

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An Object-Oriented Based Algebra for Ontologies and their Instances

An Object-Oriented Based Algebra for Ontologies and their Instances. System Catalog. Ontology. Content. Definition of an Ontology Based Database (OBDB) . A Database which contains : Local ontologies Possibly, links to external ontologies

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CMT1000: Introduction to Programming

CMT1000: Introduction to Programming. Ed Currie Lecture 2A: Pizza. Pizza making algorithm. Often when devising an algorithm, we will first express it using instructions at a high level of abstraction, that is, in quite general terms, without great detail.

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Propositional Calculus

Propositional Calculus. Knowledge based agent Knowledge is contained in agents in the form of sentences in a knowledge representation language stored in a Knowledge base

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Relevant Previous Algorithms

Relevant Previous Algorithms. Linear discrimination LMS Gradient descent. Features. Simple but powerful Nonlinear functions Multilayers Heuristic. Feedforward Operation Example. y, Perceptron. Fourier’s Theorem. Kolmogorov. Universal expressive power.

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2 nd Block Court Case Anagrams

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DAML+OIL: an Ontology Language for the Semantic Web

DAML+OIL: an Ontology Language for the Semantic Web. DAML+OIL Design Objectives. Well designed Intuitive to (human) users Adequate expressive power Support machine understanding/reasoning Well defined Clearly specified syntax (obviously) Formal semantics (equally important)

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541: Relational Calculus

541: Relational Calculus. Relational Calculus. Comes in two flavours: Tuple relational calculus (TRC) and Domain relational calculus (DRC) . Calculus has variables, constants, comparison ops , logical connectives and quantifiers .

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World Wide Web as an infrastructure for medical informatics

World Wide Web as an infrastructure for medical informatics. Changes initiated by the Web. Changes in access to documents Shift from bibliographic records to full documents as a result of use of information tools. Shift from using information in printed media to using information in e-media.

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Forum Topics

Forum Topics. OMG Roundtable Dec. 11, 2007. Background. Forum is part of the ODBMS.ORG Moderated by Dr. Roberto Zicari Started on 10/16/07 (last post 12/8/07) Great place to discuss and post issues: http://developer.db4o.com/forums. Main Topics Discussed.

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MLA

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First-Order Logic (Predicate Calculus)

First-Order Logic (Predicate Calculus). Some statements encode axioms from which other statements can be proven E.g., natural(0) and ? x natural(x) ? natural(successor(x)) Different constructs make up first-order-logic Constants like 0 or 1 (usually numbers or names)

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