Agents on the Semantic Web – a roadmap to the future

An arial view from 50 000 feet

Background litterature

• Spinning the Semantic web by J. Hendler & all, MIT Press Ltd, 2003-03-04

• Agents and the Semantic Web, James Hendler, University of Maryland – IEEE Inteligent Systems, March/April 2001

• Semantic Web Road map, Tim Burnerners-Lee, 1998-10-14

• Semantic Web @ 5 – Current Status and Future Promise of the Semantic Web, James Hendler/UoM and Ora Lassila/Nokia, Semantic Technology Conference, March 6-9 2006 San Jose, California

• Agent Technology Roadmap - A Roadmap for Agent Based Computing, AgentLink 2005

Motivations

• Semantic Web is about to leave pure research and slowly picked up by industry

• More research is needed, but most of the fundamental technology seems to be there.

• Integration of the fundamental technologies is the main challenge

• The thesis proposes an integration of Semantic Web, Semantic Web Services and Agents. A roadmap for an integration of those three technologies are described.

Introduction

• Definitions and short descriptions of:– Semantic Web– Semantic Web Services– Agents

Semantic Web – today (state of art)

• Semantic Web Stack development:– Lower layers are mature in the context of

research, i.e. XML, RDF, Ontology, ...

• ”The hen and egg problem” in practical use.

Semantic Web –tomorrow and future

Source: Semantic Web @ 5 – Current Status and Future Promise of the Semantic Web, James Hendler/UoM and

Ora Lassila/Nokia, Semantic Technology Conference, March 6-9 2006 San Jose, California

Demonstrations and early prototypes

• MINDSWAP, University of Maryland

Today

Source: Semantic Web @ 5 – Current Status and Future Promise of the Semantic Web, James Hendler/UoM and

Ora Lassila/Nokia, Semantic Technology Conference, March 6-9 2006 San Jose, California

Tomorrow and Future

Source: Semantic Web @ 5 – Current Status and Future Promise of the Semantic Web, James Hendler/UoM and

Ora Lassila/Nokia, Semantic Technology Conference, March 6-9 2006 San Jose, California

Semantic Web Services – today, tomorrow and future2005/6 Standards

WSMO SWSF WSDL-S OWL-S

Description WSMO (Web Service Modeling Ontology) has been developed since 2002. Part of a larger framework (together with Web Services Modeling Language and Web Services Execution Environment)

SWSF (Semantic Web Services Framework) is an effort by Semantic Web Services Initiative (SWSI). The first meeting of SWSI was held in December 2002. SWSF uses DAML-S draft as a starting point.

WSDL-S is being developed in METEOR-S project. The main purpose of WSDL-S is to extend existing WSDL standard with semantic description.

OWL-S is an OWL-S is a OWL-based Web service ontology and research effort started in May 2001 as DAML-S. In November, 2003 the language was renamed to OWL-S. Current specification 1.1 dates to November, 2004.

Developers Digital Enterprise Institute (DERI)

Language Committee of SWSI

IBM and University of Georgia.

Many companies and universities working in DAML program.

Standardization Submitted to W3C June 3, 2005 [link]

Submitted to W3C September 9, 2005 [link]

Plans for W3C submission.

Submitted to W3C November 22, 2004 [link]

More info http://www.wsmo.org http://www.daml.org/services/swsf/

http://lsdis.cs.uga.edu/projects/meteor-s/wsdl-s/

http://www.daml.org/services/owl-s/

SWSF

METEOR-S/WSDL-S

WSMO/ASG

Top level of DAML-S/OWL-S ontology

Demonstrations and early prototypes

• ASG

• MINDSWAP

• METEOR-S

•

Agents – today, tomorrow and future

2006

The General Process of Engaging a Web Service (W3C)

Agent technologies for infrastructure support (roadmap)

Agents exchanging simple proofs

Demonstrations and early prototypes

• JADE

• Agentcities

•

Integration of Semantic Web, Semantic Web Services and Agents

• Roadmap

Integrated ARCHITECTURE of Semantic Web, Semantic Web Services and Agents

Semantic Web Serviceic

Agent Framework

A

Grid Services

Integration of Semantic Web, Semantic Web Services and Agents

FIPA Abstract Architecture Mapped to Various Concrete Realizations

Concrete Realizations Using a Shared Element Realization

Demonstrations and early prototypes

• ?

ASG lifecycle

METEOR-S lifecycle

SWSI lifecycle

The Integrated Web is emerging

• DERI projects:– INFRAWEBS: Intelligent Framework for

Generating Open (Adaptable) Development Platforms for Web-Service Enabled Applications Using Semantic Web Technologies, Distributed Decision Support Units and Multi-Agent Systems

– SEnSE: Semantic Engineering Support Environment

Service Access Middleware (SAM) architecture

EU IST FP6-511723 INFRAWEBS:Intelligent Framework for Generating Open (Adaptable)Development Platforms for Web-Service Enabled Applications UsingSemantic Web Technologies, Distributed Decision Support Unitsand Multi-Agent Systems

DERI project SEnSE:Semantic Engineering Support Environment

SEnSE: Short description

• SEnSE will provide an environment where– Users can delegate change tracking tasks to

software agents that proactively monitor the evolution and changes of design artefacts (tools)

– Notifications can be based on the semantic structure of documents / resources rather than simple version changes

– Information about changes can be done for indirectly relevant artefacts (tools) as well

Triple Space Computing (TSC)

TSC Architecture

Conclusion