DBSURFER FREE DOWNLOAD

DBSURFER FREE DOWNLOAD

The search method makes it possible to search different types of sources at the same time, said Richard Wheeldon, a researcher at the Birkbeck University of London. Individual pieces of information, or records, reside in cells delineated by columns and rows. Data stored in relational databases is ordinarily accessed using queries structured to match the organization of the database. The current prototype won’t scale to very large databases, but this is not a fundamental limitation, said Wheeldon. Web searches tap databases By Kimberly Patch, Technology Research News Although the computer has made it possible to quickly search through documents and databases, sifting through a series of sources — like a local database, a bunch of text documents, and the Web — still means using different programs and different searches. The method uses standard keyword searches of data sources, and is easily customized, said Wheeldon. When presented with a free text database query, DbSurfer’s navigation engine calculates scores for each database row, and the best scores are used to construct trails.

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A trail is a sequence of connected pages. The researchers’ software automatically constructs trails across tables in relational databases, according to Wheeldon. Data stored in relational databases is ordinarily accessed using queries structured to match the organization of the database.

DbSurfer: A Search and Navigation Tool for Relational Databases

Wheeldon’s research colleagues were Mark Levine and Kevin Keenoy. Researchers from Birkbeck University of London in England have written software designed to allow users to search for something without having to know where it might reside.

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dbsurfer

Relational databases organize information using tables subdivided by fields like columns and rows. Individual pieces of information, or records, reside in cells delineated by columns and rows.

The researchers have also used the same basic dbsuffer to search the Web, a group of Java documents, program code, and Usenet newsgroups, said Wheeldon. The method uses standard keyword searches of data sources, and is easily customized, said Wheeldon. When presented with a free text database query, DbSurfer’s navigation engine dbsurer scores for each database row, and the best scores are cbsurfer to construct trails. The scheme uses a probabilistic best-first algorithm to select the most relevant trails.

The search method makes it possible to search different types of sources at the same time, said Richard Wheeldon, a researcher at the Birkbeck University of London. A probabilistic best-first algorithm assigns more promising alternatives higher probabilities. The program presents the results to the user as a navigation search interface. The technical challenge to building the software was being able to construct trails efficiently, said Wheeldon.

dbsurfer

The next steps in developing the system are linking the DbSurfer indexer to dbsurter Web robot, optimizing the indexer for common databases, and adding software that will enable the entire index and trail structure to be accessed from within the database interface, according to Wheeldon. The software does have a downside — it is not secure enough for highly sensitive data, Wheeldon said.

The researchers’ Best Trail algorithm does this in two ways — proportionally according to the score assigned to the trail, and decreasing exponentially according to rank. The software treats each database row as a virtual Web page, and builds links according to database settings, he said. Hypertext and the World Wide Web take advantage of dvsurfer concept, but databases do dbsurfee, according to Wheeldon. Relationships between records are determined by fields that the records have in common.

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CiteSeerX — DbSurfer: A Search and Navigation Tool for Relational Databases

DbSsurfer enables free text relational database searches through a modified version of the trails method used to organize the links contained in hypertext, said Wheeldon. Clear History Buy an ad link. Data is represented in the Internet’s extensible markup language XMLand this means “the look of the pages can be dbsurfed in many different ways,” Wilson said.

The current prototype won’t scale to very large databases, but this is not a fundamental limitation, said Wheeldon. Buy an ad link Advertisements: The software could be ready for deployment in dbsuefer than a year, said Wheeldon. Web searches tap databases By Kimberly Dbaurfer, Technology Research News Although the computer has made it possible to quickly search through documents and databases, sifting through a series of sources — like a local database, a bunch of text documents, and the Web — still means using different programs and different searches.

As far back ascomputer pioneer Vannevar Bush wrote about the concept of a web of trails.