zawadski

67 %
33 %
Information about zawadski
Entertainment

Published on November 19, 2007

Author: Gourangi

Source: authorstream.com

The Knowledge Cartography – A New Approach to Reasoning over Description Logics Ontologies:  The Knowledge Cartography – A New Approach to Reasoning over Description Logics Ontologies Krzysztof Goczyła, Teresa Grabowska, Wojciech Waloszek, Michał Zawadzki PIPS:  PIPS KaSeA RDB Data Knowledge Upper layers KMS Internet KaSeA RDB Motivations:  Motivations PIPS manages knowledge about: ilnesses, drugs, alergies, diets, … Required data are gathered from many internet sources; the number of information is very large. Knowledge Cartography:  Knowledge Cartography Main assumptions: Terminology is updated so rarely that it might be considered constant in time. A knowledge base is queried much more often than updated (new individual assertions). A knowledge base should be able to hold and efficiently process information about large numbers of individuals. Knowledge Cartography:  Knowledge Cartography Developed to: simplify reasoning on numerous objects (individuals), simplify storage of inferred results concerning numerous individuals. Processes ontological information in accordance to Description Logics and Semantic Web standard. Terminology – an example:  Terminology – an example Terminology is described by a set of statements - axioms. Suppose, we want to describe the world of people and their pets: There are no other creatures except People, Dogs and Cats, People, Dogs and Cats are disjoint, Dogs and Cats are CreaturesHavingTails, People and Cats can be CreaturesTakingCareOfHygiene. Map of concepts:  Map of concepts There are no other creatures except People, Dogs and Cats People  Dogs  Cats   Map of concepts:  Map of concepts People, Dogs and Cats are disjoint People  Dogs   People  Cats   Cats  Dogs   Map of concepts:  Map of concepts Dogs and Cats are CreaturesHavingTails CreaturesHavingTails  Dogs  Cats Map of concepts:  Map of concepts People and Cats can be CreaturesTakingCareOfHygiene CreaturesTakingCareOfHygiene  People CreaturesTakingCareOfHygiene  Cats Map of concepts:  Map of concepts Map of concepts – signatures:  Map of concepts – signatures 11000 00001 00111 01000  00010   11111 Terminological queries:  Terminological queries Must every person take care of hygenie? 11000 10011 NO Is a creature without a tail a person? 11000 11000 YES Is a creature which have a tail and takes care of hygenie a cat?  00100 00110 YES Individuals’ signatures:  Individuals’ signatures Individuals’ signatures describe what we know and what we do not know about individuals Source 1: Fred has a tail 00111 Is Fred a person? 00111 11000 NO Is Fred a dog? 00111 00001 MAYBE We know something more…:  We know something more… Source 2: Fred takes care of hygenie 00111 01100 00100 Is Fred a dog? 00100 00001 NO Is Fred a cat? 00100 00110 YES , Restrictions:  Restrictions Role constructors in the form of R.C and R.C are treated as concepts Such constructors must be explicitly defined in ontology. Deployment in PIPS:  Deployment in PIPS Cartographic approach has been succesfully deployed in the first release of PIPS system, Allowed for achieving short (<1 s) response times for queries in knowledge bases with very large (>10000) number of individuals (sublinear scalability). Future work:  Future work Compression of signatures and hierarchical signatures, Introducing signatures not only for concepts but also for roles (relations) between individuals. Extending expresiveness of KaSeA in order to support complex queries (cardinality constraints, functional, symetric and transitive roles), Slide19:  Thank you!

Add a comment

Related presentations

Related pages

Willkommen bei Messing Zawadski - Ihr Fachbetrieb für ...

Messing Zawadski. Wir fertigen historische Tür-und Fensterbeschläge nach Ihren Mustern. Für Bausanierung, Denkmalschutz und Industrie giessen und ...
Read more

Zawadski Homes :: Custom Home Builder :: Twin City Lake Lots

Zawadski Homes. 4614 Churchill Street Shoreview, MN 55126. Phone: (651) 483-0518 Cell: (651) 387-9056 Email: stevez@zawadskihomes.com ©2015 Zawadski Homes
Read more

Erich Zawadski – Wikipedia

Erich Zawadski (* 9. März 1922 in Berlin) ist ein ehemaliger deutscher Radrennfahrer, Schrittmacher und Trainer. Erich Zawadskis Radsport-Laufbahn begann ...
Read more

Zawadski – Wikipedia

Zawadski ist der Nachname von. Erich Zawadski (* 1922), deutscher Radrennfahrer; Alexander Zawadski (1798 - 1868) Siehe auch: Zawadzki
Read more

Kruse & Zawadski GmbH - Ganzheitliche Physiotherapie Leipzig

Kruse & Zawadski GmbH - Praxis für Physiotherapie mit ganzheitlichem Ansatz
Read more

Dr. Dennis Zawadski, MD - Muncie, IN - Critical Care ...

Visit Healthgrades for information on Dr. Dennis Zawadski, MD. Find Phone & Address information, medical practice history, affiliated hospitals and more.
Read more

Lance Zawadzki - Wikipedia, the free encyclopedia

Lance Frederick Zawadzki (born May 26, 1985) is an American professional baseball shortstop who is with the Lancaster Barnstormers of the Atlantic League ...
Read more

Kruse & Zawadski GmbH - Ganzheitliche Physiotherapie Leipzig

Kruse & Zawadski GmbH - unsere Praxis für Physiotherapie mit ganzheitlichem Ansatz finden Sie in der Nordstrasse 1 in 04205 Leipzig - Termine nach ...
Read more

Joe Zawadzki | LinkedIn

View Joe Zawadzki’s professional profile on LinkedIn. LinkedIn is the world's largest business network, helping professionals like Joe Zawadzki discover ...
Read more

Messing Zawadski :: Beschläge - Berlin.de

Messing Zawadski. Beschläge; Messing Zawadski. Elbestr. 39 12045 Berlin–Neukölln. Tel.: 030-6139240; Fax: 030-61392422; X Ihr Unternehmenseintrag im ...
Read more