Faculty Faculty Richard Fikes Edward Richard Fikes Edward Feigenbaum Feigenbaum (Director) (Director) (Emeritus) (Emeritus) Knowledge Systems Knowledge Systems Laboratory Laboratory Stanford University Stanford University “ “ In the knowledge is the power.” In the knowledge is the power.” Senior Senior Scientists Scientists Deborah McGuinness Deborah McGuinness Sheila McIlraith Sheila McIlraith (Associate Director) (Associate Director) Technology for effectively Technology for effectively representing and using representing and using knowledge in computer systems knowledge in computer systems 9/4/02
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Faculty Faculty Richard Fikes Edward Feigenbaum (Director) (Emeritus) (Director) (Emeritus) Knowledge Systems Laboratory Stanford University “In the knowledge.
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FacultyFacultyRichard Fikes Edward Richard Fikes Edward FeigenbaumFeigenbaum (Director) (Director) (Emeritus)(Emeritus)
Knowledge Systems LaboratoryKnowledge Systems LaboratoryStanford UniversityStanford University
““In the knowledge is the power.”In the knowledge is the power.”
Technology for effectively representing and Technology for effectively representing and using knowledge in computer systemsusing knowledge in computer systems
9/4/02
Knowledge Systems Laboratory, Stanford University
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KSL ProjectsKSL Projects For DARPA in multiple programsFor DARPA in multiple programs
Secure, robust, and scalable Logistics (Secure, robust, and scalable Logistics (UltraLog)UltraLog)
For the intelligence community in multiple programsFor the intelligence community in multiple programs AAdvanced dvanced QUQUestion & estion & AAnswering for nswering for INTINTelligence (elligence (AQUAINTAQUAINT))
KKnowledge nowledge DDiscovery and iscovery and DDissemination (issemination (KD-DKD-D))
NNovel ovel IIntelligence from ntelligence from MMassive assive DData (ata (NIMDNIMD))
Knowledge Systems LaboratoryKnowledge Systems LaboratoryStanford UniversityStanford University
www.ksl.stanford.eduwww.ksl.stanford.edu
Knowledge Systems Laboratory, Stanford University
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The Semantic WebThe Semantic Web
Goal: Evolve the Web –Goal: Evolve the Web – From sites designed for human consumptionFrom sites designed for human consumption To sites alsoTo sites also understandable and usable by computer programs understandable and usable by computer programs
What would that do for us?What would that do for us? Query answeringQuery answering rather than document retrieval rather than document retrieval ServicesServices findable, usable, and composable by automated agents findable, usable, and composable by automated agents Information exchangeInformation exchange among independently designed programs among independently designed programs
How are we getting there from here?How are we getting there from here? For For documents –documents –
> StructureStructure, ala XML, ala XML> OntologiesOntologies to provide intended meaning of terms to provide intended meaning of terms
For For services – services – Computer interpretable descriptionsComputer interpretable descriptions
““The Semantic Web is an extension of the current web in which information is given well-defined meaning, better enabling computers and people to work in cooperation.”
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KD-D Project ObjectivesKD-D Project Objectives
Tools for authoring analysis reports as hyperwebs Tools for authoring analysis reports as hyperwebs of Semantic Web documentsof Semantic Web documents
Authoring ToolsAuthoring Tools Develop tools for authoring analysis reports as hyperwebs of Develop tools for authoring analysis reports as hyperwebs of
Semantic Web documentsSemantic Web documents Tools toTools to build knowledge base of supporting data and results build knowledge base of supporting data and results
Tools to Tools to produce report as text version of knowledge base contentproduce report as text version of knowledge base content Develop automated services supporting analysis reportsDevelop automated services supporting analysis reports
> Report Report templatestemplates that specify – that specify –
– Syntactic structure of the documentSyntactic structure of the document
– Ontologies describing the meaning of the vocabulary used in the template Ontologies describing the meaning of the vocabulary used in the template
– Sequence of entities (class instances) that the document will describeSequence of entities (class instances) that the document will describe
– Perspective for each entity descriptionPerspective for each entity description
> Semantic searchSemantic search tools for effectively finding data relevant to a task tools for effectively finding data relevant to a task
> Interactive extractionInteractive extraction tools for documents and typed text tools for documents and typed text
> Knowledge structuring and editingKnowledge structuring and editing tools tools
> LinkingLinking of analysis of analysis results toresults to supporting supporting datadata
Develop tools for authoring analysis reports as hyperwebs Develop tools for authoring analysis reports as hyperwebs of Semantic Web documentsof Semantic Web documents
Develop automated services supporting analysis reportsDevelop automated services supporting analysis reports Monitor for changes in dataMonitor for changes in data supporting results supporting results
Changes and updates to data reflected in reported resultsChanges and updates to data reflected in reported results
Check results for incongruitiesCheck results for incongruities with data and other results with data and other results
Include Include query-answering agentquery-answering agent with report with report
Integrate resultsIntegrate results from multiple authors using differing vocabularies from multiple authors using differing vocabularies
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I Found These SourcesI Found These Sources
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Document sources
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Hyperlinks in DocumentsHyperlinks in Documents
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Hyperlinks to entities
in knowledge
base
Extracted people
and roles
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Identified People and Their Identified People and Their TitlesTitles
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> Critical tools for authoring results as Semantic Web documentsCritical tools for authoring results as Semantic Web documents > Sample set of document templates and ontologiesSample set of document templates and ontologies
> Sample set of automated services supporting analysis reportsSample set of automated services supporting analysis reports
ImpactImpact PrototypesPrototypes (tools & services) (tools & services) suitable forsuitable for initial testing by analystsinitial testing by analysts
Designs for implementationsDesigns for implementations suitable for substantial pilot studiessuitable for substantial pilot studies
Semantic Web ToolsSemantic Web Toolsforfor
Authoring and UsingAuthoring and UsingAnalysis ResultsAnalysis Results
Richard FikesRichard FikesRobert McCoolRobert McCool