Zebra "Open Source Software". Excellent Search Engine For Koha.

Zebra is a free, fast, friendly information management system. It can index records in XML, SGML, MARC, e-mail archives and many other formats, and quickly find them using a combination of boolean searching and relevance ranking. Search-and-retrieve applications can be written using APIs in a wide variety of languages, communicating with the Zebra server using industry-standard information-retrieval protocols or web services.

Zebra is licensed Open Source, and can be deployed by anyone for any purpose without license fees.

About Zebra :

Zebra is a high-performance, general-purpose structured text indexing and retrieval engine. It reads records in a variety of input formats (e.g. email, XML, MARC) and provides access to them through a powerful combination of boolean search expressions and relevance-ranked free-text queries.

Zebra :

(1) - Supports large databases (more than ten gigabytes of data, tens of millions of records).

(2) - Supports the industry-standard information retrieval protocol Z39.50.

(3) - Supports incremental, safe database updates on live systems. You can access data stored in Zebra using a variety of Index Data tools (eg. YAZ and PHP/YAZ) as well as commercial and freeware Z39.50 clients and toolkits.

(4) - Is free software, available under the GPL license.

(5) - Application libraries are available to allow bespoke clients to be written in Perl, C, C++, Java, Tcl, Visual Basic, Python, PHP.

(6) - Is available as MS Windows 2003 Server (32 bit), GNU/Debian Linux (32 bit and 64 bit), Unix, Linux.

In Koha, we find Zebra to be an excellent search engine :

(1) - It is a free, fast, friendly and efficient information management system.

(2) - It can index large databases.

(3) - It can index bibliographic, authority, and holdings records.

(4) - It is Unicode compliant and can work with any language.

(5) - It is highly configurable. you can index any MARC field, set up numeric, word, or phrase indexes, or configure ranking and sorting.

(6) - It can be queried using complex search expressions such as AND and OR operators.

(7) - It allows for additional features on Koha such as search limits, and refining searches that are otherwise not available.

(8) - It has sophisticated features such as approximate matching, and spelling correction.