the saguaro digital library for natural asset management dr. sudha ramsudha ram advanced database...
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The Saguaro Digital The Saguaro Digital Library for Natural Library for Natural Asset ManagementAsset Management
Dr. Sudha Ram
Advanced Database Research Group
Dept. of MIS
The University of Arizona
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The Saguaro Digital Library for Natural Asset Management
Objective
To develop a comprehensive digital library system that facilitates interoperability among heterogeneous resources used in decision making, evaluation and assessment of natural assets used for biodiversity and sustainability
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The Saguaro Digital Library for Natural Asset Management
Key Issues and Challenges Addressed
Interoperability Using Mediators Support for a “living” digital library
(Resource Harvesting) Address needs of a wide variety of
users using Intelligent Agents Provide Contextual Search
Mechanisms
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The Saguaro Digital Library for Natural Asset Management
Architecture of theSaguaro Digital Library
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The Saguaro Digital Library for Natural Asset Management
Components of theSaguaro Digital Library
User Interface Agent (UIA)– Acquires the user background and stores it in the user profile
database.– Assists the user in formulating queries (contextual search).– Bilingual interface (English and Spanish).
Broker Agent (BA)– Communicates with supply agents.– Contains high level knowledge of the types of resources available in
underlying distributed resources. Processing Agent (PA)
– Assists the user in running analytical models.– Visualizes the output and passes it back to the BA, which, then
converts it to the UIA. Supply Agent (SA)
– Stores information about each individual collection of resources.– Contains knowledge about how to access such resources.
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The Saguaro Digital Library for Natural Asset Management
Components of theSaguaro Digital Library
Semantic Mediator (SM)– Resolves data- and schema-level conflicts.– Resolves taxonomic classification and information classification
problems.– Uses its conflict resolution ontology to resolve such conflicts.
Metadata repository (MR)– Stores semantic data models that describe concepts in terms that
users understand.– Contains description of geospatial resources (NBII Biological
Metadata Standard). Model and Tool Repository (MTR)
– Spatial processing tools and algorithms, Mathematical models, Statistical tools, Analytical models, Visualization tools.
Harvesting Agent (HA)– Uses harvesting rule base and harvester profile database to invoke
appropriate harvesting tool and to store providers’ profiles and their background, assisting users with contributions to the SDL.
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The Saguaro Digital Library for Natural Asset Management
Harvesting Tools Repository (HTR)– Contains online web-based tools (resource collectors) to collect and
update resource items.– Uses quality control tools and integrity checkers to determine the
quality of the resource and its reliability submitted by the user.– Provides notifiers to inform the appropriate review team when a new
resource has been submitted. Users and Resource Suppliers
– K-12 students, college students, federal & state agencies, public and private organizations.
Distributed Resources– A large number and variety resources scattered across various
Arizona state agencies, federal agencies and university departments.
Components of theSaguaro Digital Library
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The Saguaro Digital Library for Natural Asset Management
Partners State Agencies
– Arizona State Lands Department– Arizona State Cartographer’s Office– Arizona Geological Survey– Arizona Geographic Information
Council
Federal Agencies– Department of the Interior USGS
Biological Resources Division Sonoran Desert Field Station
– Federal Geographic Data Committee– Department of Defense– USDA with the U.S. Forest Service
and the ARS Bee Lab– Los Alamos National Laboratory– Department of Agriculture - Rocky
Mountain Research Station– National Park Service, Southern
Arizona Group and the Nature Conservancy
K-12 Schools– Lawrence Intermediate School
– Ft. Lowell Elementary School
University of Arizona Colleges– College of Engineering (Arizona Regional
Image Archive, Dept. of Hydrology and Water Resources)
– College of Social and Behavioral Sciences (Dept. of Geography)
– College of Agriculture (Dept. of Arid Land Studies, School of Renewable Natural Resources)
– College of Arts and Sciences (Physics and Atmospheric Sciences)
– College of Business and Public Administration (MIS)
– University of Arizona Library
Industry– Online Computer Library Center, Inc.
– Raytheon STX
– Simons International Corp.
– Oracle Corp.
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The Saguaro Digital Library for Natural Asset Management
Ongoing Projects USM* (Interoperability, Metadata, Ontology) Intelligent Agents for Image and Multimedia Data
Management SAGE: An Intelligent Agent Toolkit for
Discovering and Accessing Distributed Earth Observing Data
Data Management for Biodiversity and Conservation
National Biological Information Infrastructure Data Services
Dynamic Schema Evolution in Large Heterogeneous Database Environments
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The Saguaro Digital Library for Natural Asset Management
Contributions
Support heterogeneous, federated collections of digital contents.
Facilitate evolution of digital collections.
Directly support the goals of the National Biological Information Infrastructure (NBII) by developing the capability to share data and resources.