GridIR GGF Charter
Administration
Name
Grid Information Retrieval (GridIR)
Chairs
- Kevin Gamiel
-
| Organization | MCNC-RDI |
| Postal | 3021 Cornwallis Road, Research Triangle Park, NC 27709-2889 |
| Phone | +1-919-248-1915 |
| Email | kgamiel at cnidr.org |
- Dr. Gregory B. Newby, Research Faculty
-
- Nassib Nassar
-
| Organization | Etymon Systems, Inc. |
| Postal | P.O. Box AM, Princeton, NJ 08542, USA |
| Phone | +1-609-851-4356 |
| Email | nassar at etymon.com |
Secretary
- Sousan Karimi
-
| Organization | MCNC-RDI |
| Postal | 3021 Cornwallis Road, Research Triangle Park, NC 27709-2889 |
| Phone | +1-919-248-9297 |
| Email | sousan at cnidr.org |
Mailing List
gir-wg@gridforum.org
Subscription details available at: http://www.gridir.org/mailing_list.html.
Description and Objectives
Purpose
The GridIR WG will establish a specific set of requirements, an
architecture, and detailed specifications for a particular Information
Retrieval (IR) system on the OGSA Grid. GridIR will provide document
collection management, indexing/searching, and query processing services
to OGSA grid users and applications.
Goals
The GridIR WG will:
1. Establish requirements for GridIR.
The WG will describe specific functional system requirements. Initial
requirements are identified as:
- Distributed, asynchronous and independent of content and query type
- Collection management capability
- Indexing and searching capability
- Query processing capability
- Metadata capabilities to identify and interact with collections, indexes and query processors
2. Define an architecture for GridIR
The WG will describe a specific architecture in support of satisfying the
IR system requirements in an efficient, modular manner. The initial
architecture includes three major components:
- Collection Manager services - Provides generalized methods for describing logical
record collections, instantiating those collections (by crawling, copying,
accepting streams, etc), providing metadata services on those collections,
provide access methods to those collections, and provide event services for
collection change notification.
- Indexing/Searching services - Provides generalized methods for building
indexes/representations of Collections for subsequent rapid search. Also
provides generalized complex query and retrieval methods.
- Query Processing services - Provides methods for distributed searching,
merging result sets, query expansion, and event-driven change notification.
3. Describe detailed GridIR specifications
The WG will describe a set of specifications based on the OGSA suitable
to implement GridIR systems. We will describe a specific set of OGSA services,
initially including:
- GridIR PortType
- Includes method(s) for discovering metadata about available IR capabilities and collections
- CollectionManagement PortType
- Includes methods for defining logical document collections (including
document harvesting and transformation rules) and delivering them (as full
collections or partial updates)
- SearchAndPresentation PortType
- Includes methods for submitting a structured query and manipulating
result sets.
- InformationRetrieval PortType
- Inherits SearchAndPresentation PortType.
- Adds methods for index administration.
- Supplies core IR functionality.
- QueryProcessing PortType
- Inherits SearchAndPresentation PortType.
- Handles distributed asynchronous event-driven queries
- Presents super-sets of InformationRetrieval PortTypes to user clients
- Provides methods for result set merging
- Provides query expansion and other processing services
Milestones
- GridIR Requirements Document - Stakeholder-driven list of
service-level requirements for building a grid-based IR system. Revised
draft by GGF7, finalize by GGF8
- GridIR Architecture Document - Describes overall system comprised of
integrated grid services, scenarios, etc. First draft by GGF7, finalize
by GGF12.
- GridIR Specifications Document - Describes each service in detail,
with an emphasis on WSDL interface specification. First draft by GGF7,
finalize by GGF13.
Website
http://www.gridir.org
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