NASA SBIR 00-1 SOLICITATION

FORM 9B - PROJECT SUMMARY


PROPOSAL NUMBER 00-1 15.06-9445 (Chron: 000556 )
PROJECT TITLE
ACQUIRE: Agent-based Complex QUerying and Information Retrieval Engine



TECHNICAL ABSTRACT (LIMIT 200 WORDS)
The heterogeneous, distributive, and voluminous nature of NASA’s Earth science data archives impose severe constraints on meeting the diverse requirements of thousands of users who analyze the data. Additionally, communication bandwidth limitations, time constraints, and a multiplicity of archives impose further restrictions on users and systems. What is required is a reliable, robust and efficient technique that can be integrated within NASA’s existing data servers for enhancing query support to archive users. We propose to design and prototype an Agent-based Complex QUerying and Information Retrieval Engine (ACQUIRE) for heterogeneous and distributed Earth science data sources over the Internet, while maintaining the autonomy of individual data sources. ACQUIRE translates a user query to a set of sub-queries by deploying a combination of planning and traditional database query optimization techniques. ACQUIRE first spawns a set of intelligent autonomous mobile search agents corresponding to these sub-queries for retrieving data from several Distributed Active Archive Centers (DAACs) (e.g., such as the Alaska SAR Facility (ASF)). The engine then filters and merges data from these agents and returns the answers to the query. The proposed approach will build on existing data servers and meta-database catalogs of NASA’s Earth Observing System Data and Information System (EOSDIS).



POTENTIAL COMMERCIAL APPLICATIONS
We see several potential commercial applications of the developed mobile agent based technology for distributed query processing and information retrieval. The technology can be directly applied to other domains, in particular, automated information gathering from distributed Internet sites, distributed corporate database environments, and shopping over the internet. The dual use of the developed core technology complements various ongoing projects including a current effort sponsored by NASA to build a distributed environment for spacecraft onboard planning and scheduling.



NAME AND ADDRESS OF PRINCIPAL INVESTIGATOR (Name, Organization Name, Mail Address, City/State/Zip)
Dr. Subrata Das
Charles River Analytics Inc.
725 Concord Ave
Cambridge , MA   02138 - 1040



NAME AND ADDRESS OF OFFEROR (Firm Name, Mail Address, City/State/Zip)
Charles River Analytics Inc.
725 Concord Ave
Cambridge , MA   02138 - 1040