DAML Agent Semantic Communications Service (ASCS)

1
DAMLAgent Semantic Communications Service (ASCS)

• Teknowledge
• Adam Pease, John Li
• apease jli_at_teknowledge.com
• July 19, 2001

2
Whats Hot

• Scaleable DAML-based search engine
• Experiments to quantify performance
• Includes translation between ontologies
• Large ontologies in DAML
• Commercial product integration
• TekPortal

3
Whats Hard

• Scaling semantic search
• Ontology translation
• Finding a useful set of transformations (not
  arbitrarily complex stuff that isnt used)
• Creating a compelling value proposition for
  commercial product (the UHF problem)

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Semantic Search

• Agent Semantic Communications Service (ASCS)
• Integration between agents with different
  ontologies
• Semantic Search Engine (SSE)
• An agent doing smart searches for other agents
• Semantic translation service
• Translates between ontologies

ASCS
ASCS
Agent
Agent
Database
Shared
Shared
ontology
ontology
Shared
ontology
Shared
ASCS
ontology
Agent
ASCS
Agent
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Architecture
GUI
Query orginalQuery originalOntology currentQuery c
urrentOntology hoplist timeoutLimit hopcountLimit
searchID searchResultFlag rdfResultList
Query
Query
Translator
Query
Query
Translator
Query
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Areas of Application

• ASCS applies to passive information (e.g. web
  pages) and active agents (e.g. planners,
  databases, shoppers, search engines)
• ASCS also helps with ontology versioning problems

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Experimentation

• Quantitative Experiments not Existence proofs
• Metrics include inter-agent communication speed
  (as mediated by ASCS), correctness of the
  translation, semantic complexity of source and
  target communication

1,000,004 records
1,000,004 records
1,000,004 records
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Large Ontologies

• WordNet in DAML
• 10,000 pages each with 10-100 DAML statements
• IEEE Standard Upper Ontology (proposal)
• Large, free, general purpose, formal,
  peer-reviewed
• People are free to reuse all or part of the
  content
• A resource to speed creation of good ontologies
  and avoid reinvention
• 2000 DAML statements

9
Commercial Product

• TekPortal
• Industry leader in on-premise account aggregation
• In use at NetBank, MacQuerie, 30 financial
  institutions
• VARs include NCR, Vexis, and Financial Fusion Inc

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TekPortal DAML

• Financial ontology in DAML (and built on the SUO
  proposal)
• DAML encoded aggregation displays
• DAML markup of bond sites
• Ontology translation
• Crawl and index bond sites
• Dynamic search, translation, advice

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Architecture
SSA2
Bond 1 Server
Result pages for queries, bond listing, Financial
App.
SSA3
STA
Bond 2 Server
Query Interface
Financial App.
SSA1
Result page for Fin. App
Results as Strings
TekPortal JSP
TekPortal
Calls
SQL Queries
Data
SQL Server
Result page for TekPortal info.
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Bond Information
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Account Aggregation
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Advice
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Plans

• Semi-automated discovery of translations
• DAML-based advice and inference
• Additional DAML ontologies
• Deployment of client and server-based search
  agents
• Multi-user DAML-based advice server
• Improved general search interface