Collaborative Package-based Ontology Building and Usage

Collaborative Package-based Ontology Building and Usage Jie Bao and Vasant Honavar Artificial Intelligence Research Laboratory Computer Science Department Iowa State University Ames IA USA 50010 {baojie,honavar}@cs.iastate.edu 2005 Nov 27 Houston. IEEE Workshop on Knowledge Acquisition from Distributed, Autonomous, Semantically Heterogeneous Data and Knowledge Sources, in ICDM2005.

What is it about? ,[object Object],[object Object],[object Object],[object Object]

Outline ,[object Object],[object Object],[object Object]

Why – Local vs Global Semantics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Why – Partial vs All Or None Reuse ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],General Pet Poultry Livestock Animal Ontology (Centralized) MyPet General Pet Poultry Livestock MyPet Animal Ontology (Package-extended) Semantic importing Semantics incorporated in MyPet ontology Semantics not presented in MyPet ontology Legend :

Why – Organizational vs Semantic Structure ,[object Object],[object Object],[object Object],[object Object],Animal is a part of

Why – Hiding vs Sharing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Locally visible: Has personal date Globally visible: Has activity schedule

Ontology Languages Today ,[object Object],[object Object],[object Object],[object Object],[object Object]

Ontology Languages Needed ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PO: Overview P 3 protected 1. Whole ontology consists of a set of packages 2. Packages are organized in hierarchies 3. Terms (sometimes also axioms) are defined in packages with scope limitation 4. Ontology modules can be partially reused and connected with views and interfaces

Package ,[object Object],[object Object],[object Object],[object Object],1. Whole ontology consists of a set of packages General Pet Poultry Livestock

Nested Package ,[object Object],[object Object],[object Object],2. Packages are organized in hierarchies Animal Pet Animal Ontology (Package-extended) Dog

Scope Limitation Modifier ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],3. Terms has scope limitation

SLM: example The schedule ontology(In description logics) Hidden: details of the activity Visible: there is an activity

View and Interface ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4. Ontology modules can be partially reused and connected with views and interfaces

View and Interface - example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A Package with multiple interfaces P 1 P 2 P 3 A View can be built upon multiple packages and can be referred to by multiple modules P 1 P 3 P 4 P 2

Summary of PO ∆ P is the domain of all package, ∆ S is the set of terms

Package-based Partial-order Ontology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

PPO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],branches Aspects

Collaborative Building of PPO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Features of the Editor ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Download: http://boole.cs.iastate.edu/indus/ppo

Other Package-based Ontologies P-DL: package-extended description logics

Ongoing work ,[object Object],[object Object],[object Object],[object Object],[object Object]

Acknowledgements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Story about the Semantic Web Berners-Lee, T., Hendler, J., and Lassila, O. (2001).The semantic web. Scientific American, 284(5):34-43.

More Stories about the Semantic Web ,[object Object],[object Object],[object Object],Lucy Lucy's agent asks the hospital agent for available doctors Lucy‘s agent 1 Hospital agent Dr. Smith‘s agent Dr. Black‘s agent Hospital agent has a local but incomplete calendar list for all doctors therefore asks doctors' agents for updates. 2 Dr. Smith's agent decides not to expose the details about the 3pm-5pm date, but gives a less informative answer. 4 Hospital agent finds the inconsistency between its local calendar and the recent answers and decides to use the newer information. 3 Dr. Black's agent sends back new calendar Hospital agent tells Lucy's agent only Dr. Smith is available 11am-3pm today. 5 3

Why – Organizational vs Semantic Structure Example from programming language (Java) Organizational structure Semantic structure

PPO Embedded in OBO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Collaborative Package-based Ontology Building and Usage

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