Coronado-Pacora, Enna Z.

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Sre: search and retrieval engine of the terrascope database middleware system
(2003) Coronado-Pacora, Enna Z.; Rodríguez-Martínez, Manuel; College of Engineering; Velez-Rivera, Bienvenido; Rivera Vega, Pedro; Department of Electrical and Computer Engineering; Toledo, Freya
Our research emerged from the need to know how to recover and to visualize graphical/textual information of images that are stored in multiple data sources. We are focused on a system for recovering, merging, and displaying data, metadata, and images from heterogeneous distributed data sources for purposes of providing end-users with an unique entry point to those data sources. We present the Search and Retrieval Engine (SRE) developed as part of TerraScope, a Web-based Earth Science Database Middleware System. SRE is the execution engine based on Java Servlet technology and the Peer–to–Peer architecture that makes possible the transformation of the server into a client of data at any moment. SRE allows for the communication among others Web Servers, such that multiple data sources can be integrated into a coherent system. SRE also supports the execution of different queries that gather useful data from each distributed data source.