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AI Planning for Semantic Web Service Composition? Survey of current approaches,  challenges and open questions presented by  Axel Polleres [email_address]
Let's start with a pessimistic view… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Jim Hendler's opinion: 01/02/2004 public-sws-ig@w3.org:
…  and let's see what still might be achieved: ,[object Object],[object Object],[object Object],[object Object],[object Object]
AI Planning… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A B C A B C move(a,table) move(c,a) move(b,c) "Given a set of actions, their preconditions and positive and negative effects, a complete description of the initial state and a user goal find a sequence of actions achieving the goal".
Classical Planners: ,[object Object],[object Object],[object Object],[object Object]
Semantic Web Services on the other hand: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Non-classical Planning: Loosen the restrictions to complete knowledge, and deterministic actions: ,[object Object],[object Object],[object Object],[object Object],[object Object]
Non-classical planners: ,[object Object],[object Object],[object Object],[object Object],[object Object]
Planning for WS, examples: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Planning for WS, examples cont'd: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Open Questions & Challenges: ,[object Object],[object Object],[object Object],[object Object]
Open Questions & Challenges cont'd ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Relations With WSMO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],Discovery Discovery in WSMO Mediators WSMO WSML WSMX Goals Web Services Ontologies
Discovery: Goal-Capability Matching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Key aspect: Goal discovery vs. Service Discovery ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Goal Input Abstracted goal Service Abstracted Service Figure 1 The three major processes of heuristic classification. Goal Discovery Service discovery matching
Level 2: ,[object Object],[object Object]
Level3: Logical Descriptions of Services: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
WSMO Logical Descriptions of Services, by example: ,[object Object],[object Object],[object Object],[object Object],[object Object],Conjecture: what we need is something in between theconceptual matching And rules describing input/output relation
References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Ai Planning For Semantic Web Service Composition

  • 1. AI Planning for Semantic Web Service Composition? Survey of current approaches, challenges and open questions presented by Axel Polleres [email_address]
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Editor's Notes

  1. My background: I joined DERI one year ago, ome from a different field. Worked in application of Logic Programming techniques for planning, and analyzing theory/complexity of Planning. Currently: Involved in WSMO/WSML efforts where we build up a framework for semantically describing all relevant aspects of Web Services.