Developer / company: Etymon Systems, Inc.
Isearch is open source text retrieval software developed in 1994 by Nassib Nassar at the Clearinghouse for Networked Information Discovery and Retrieval (CNIDR), which was funded by the National Science Foundation. Isearch was designed as a proof-of-concept software architecture for use in distributed information retrieval, known at the time as wide-area information systems, or WAIS. Isearch formed the text retrieval component of the Isite software, which was a complete prototype implementation of ANSI/NISO Z39.50 (ISO 23950). Prior to that time, most available software such as freeWAIS did not view the retrieval protocol as being separate from the index algorithms, and Isite/Isearch decoupled these components.
One of the useful things that came out of the Isearch project was the "document type" model, which is simply a method of associating each document with a class of functions providing a standard interface for accessing the document. Amberfish uses a variation of this model. This was also used to provide public searching access to heterogeneous (multiple format) legacy patent documents from the U.S., Europe, and Japan.
The main features of Isearch include full text and field searching, relevance ranking, Boolean queries, and support for many document types such as HTML, mail folders, list digests, and text with SGML-style tags.
Isearch was not designed to handle the extremely large data sets that became popular in the mid to late 1990's; however, Isearch was widely adopted and used in hundreds of public search sites, including many high profile projects such as the U.S. Patent and Trademark Office patent search site, the Federal Geographic Data Clearinghouse (FGDC), the NASA Global Change Master Directory, the NASA EOS Guide System, the NASA Catalog Interoperability Project, the Astronomical pre-print service based at the Space Telescope Science Institute, The PCT Electronic Gazette at the World Intellectual Property Organization (WIPO), Linsearch (a search engine for Open Source Software designed by Miles Efron), the SAGE Project of the Special Collections Department at Emory University, and Eco Companion Australasia (an environmental geospatial resources catalog).
Isearch works with the following file extensions:
Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.
Isearch default file extension associations
Comparison table of actions that Isearch can perform with its associated file type beta
This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of Isearch (Etymon Systems, Inc.), or check out their product website.
File type \ Action