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Hermann Helbig University Hagen Intelligent Information and Communication Systems http://pi7.fernuni-hagen.de Semantic Networks as a Knowledge Representation Paradigm and Interlingua for Meaning Representation Part I - Foundations
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Semantic Networks [MultiNet] * NL Access to Data Bases & to the Internet * Automatic Translation * Question-Answering Systems (QAS) * Semantic Web Lexicography Natural Language Understanding Knowledge Processing Helbig, University of Hagen Chair of Intelligent Information & Communication Systems Cognitive Modeling Logics I. Disciplines: III. Applications: II. Technology: * Workbench for the Knowledge Engineer * Natural Language Interpreter * Workbench for the Computer Lexicographer * Virtual electronic laboratory VILAB
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MultiNetKL-ONE RMRS *) *) Robust minimal recursion semantics The Position of MultiNet in the System of KRM
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Basic Constructs
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The Upper Ontology (Sorts) No collections, aggregations as sorts
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The Layer Structure of MultiNet [Multidimensionality]
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„Max gave his brother several apples.“ „This was a generous gift.“ „Four of them had been rotten.“ Intensional Level vs. Preextensional Level Typical NL constructs aiming at the preextensional level: - apart from, the one... the others, including,....
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Material Origin o1 o2 p2 (o1 SUB o2) (p2 PARS o2) p1 (p1 PARS o1) (p1 SUB p2) D: o1 o2 o3 (o1 SUB o2) (o2 SUB o3) (o1 SUB o2) K: o1 o2 p2 (o1 PARS o2) (o2 ORIGM s) (o1 ORIGM s) D: Sample Network
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B-Axioms R-Axioms
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Classification of axioms
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Immanent vs. Situational Knowledge
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Multilinguality The Computer Lexicon [Semantic Part] agent orientation beneficiary result mental content
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Problematic Axioms and Rules of Standard Logic Feasible Inference Rules of Logic Guidelines for an Adequate Logic - Principle of locality (admittance of contradictions) - Opportunistic logic (fusion of different logical approaches) - Associatively guided search (warranting a semantic coherence) - Substitution of truth values by degrees of trustworthiness A A B Extension Rule A A B Ex falso quodlibet ( A) A Law of Double Negation A A Law of the Excluded Third Modus ponens Abduction Syllogisms A B x R(x) H(x) A B A B x M(x) R(x) ---------- ---------- ------------------------ B A x M(x) H(x) (more trust- („ferio“) worthy)
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The Method of Question Centering KB: „The travel agency T-Serv bought a PC from CompuTex in 1998.“ Q: „Which firm did CompuTex sell a computer to?“
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Hermann Helbig University Hagen Intelligent Information and Communication Systems http://pi7.fernuni-hagen.de Semantic Networks as a Knowledge Representation Paradigm and Interlingua for Meaning Representation Part II - Applications
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MWR –The Workbench for the Knowledge Engineer Main Panel
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Relation CAUS The MWR Help System (Online Documentation)
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The Assimilation of Partial Networks Ge: “Das Flugzeug mußte landen.“ En: „The plane had to land.“ Ge: “Die Turbine wurde durch einen Vogel beschädigt.“ En: „The turbine had been damaged by a bird.“ Ingo Glöckner [REFER=d et] ?
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The Result of the Assimilation Process Ingo Glöckner Inherita nce
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<knowledge processing> WOCADI – The Natural Language Translator Ge: „Nenne mir Bücher von Shapiro über automatische Wissensverarbeitung, die bei Addison-Wesley erschienen sind.“ En: „Show me books of Shapiro about automatic knowledge processing, which have been pulished by Addison-Wesley.“ Sven Hartrumpf
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The SQL Interface to Relational Data Bases Johannes Leveling
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German Library Result of the Search Selection of Libraries. Are there any books of Peter Jackson which have been published by Addison-Wesley. Johannes Leveling NLI-Z39.50 – A Natural Language Interface to the Internet
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GE: Gibt es Bücher von Peter Jackson über Expertensysteme, die bei Addison-Wesley erschienen sind? En: Are there books of Peter Jackson about expert systems which have been published by Addison- Wesley? (QUERY = unspecified) (MEDIA_OBJECT = buch.1.1) (BIBCODE = (WORD b)) (PUBLISHER = (NAME addison-wesley.0)) ((OR AUTHOR EDITOR) = (NAME jackson.0 peter.0)) ((OR TITLE (OR SUBJECT TITLE-SERIES)) = (WORD expertensystem.1.1)) find @and @attr 1=46 @attr 2=3 @attr 3=3 @attr 4=2 @attr 5=1 "expertensystem" @and @attr 1=1004 @attr 2=3 @attr 3=3 @attr 4=1 @attr 5=1 "jackson, peter" @attr 1=1018 @attr 2=3 @attr 3=3 @attr 4=2 @attr 5=100 "addison-wesley" NL-Query Interlingua Expression YAZ Expression Johannes Leveling
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Textual Knowledge Base User searching for duplicates Recogni zer Data bases for texts and for duplicates Knowledge base Theorem prover Textual entailments Semantic Recognition of Duplicates Tim v. der Brück
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DeLight – Linguistically Sound Readability Checker
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M ax cut down ax tree Automatic Translation with MultiNet as a Semantic Interlingua M ax fällen Bau m Ax t Tiansi Dong
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SEMPRIA ® GmbH Answer field with ranked answers Where did Oliver Bierhoff study? Bierhoff finished his studies at the Open University in Hagen after ….? Answer: at the Open University in Hagen? [Rank: +++] SEMPRIA ® GmbH SEMPRIA ® Search – A New Semantically Oriented Search Engine
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SEMPRIA ® Search – Comparison with Google SEMPRIA ® GmbH Oliver Bierhoff gave homophobia a face ….?
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