1.Hyper Estraier is a full-text search engine developed in C language. It was developed by a Japanese. The project is registered at sourceforge.net (http://hyperestraier.sourceforge.net).
2.Hyper features:
High speed, high stability, high scalability...(This is all for a reason, not just a boast)
P2P architecture (can be translated as end-to-end, not the p2p we use for blockbusters)
Comes with Web Crawler
Good multi-byte support with document weight sorting (come to think of it, it was developed by the Japanese....)
Simple and practical API (I read it again, and all of them are really practical. If I can understand it, it is considered simple)
Phrase, regular expression search (this is a bit too much, without this, wouldn’t it be a good Full text Search Engine?)
Structured document search capabilities (probably means that you can add a bunch of attributes to the document yourself and search for these attributes, right? I have not experimented with this)
Hyper Estraier is a full-text search system. You can search lots of documents for some documents including specified words. If you run a web site, it is useful as your own search engine for pages in your site. Also, it is useful as search utilities of mail boxes and file servers.
The characteristic of Hyper Estraier is the following.
- High performance of search
- High scalability of target documents
- Perfect recall ratio by N-gram method
- High precision by hybrid mechanism of N-gram and morphological analyzer
- Phrase search, regular expressions, attribute search, and similarity search
- Multilingualism with Unicode
- Independent of file format and repository
- Intelligent web crawler
- Simple and powerful API
- Supporting P2P architecture
Hyper Estraier is an open-source software released under the terms of the GNU Lesser General Public License. It works on Linux, Windows, Mac OS X, and other UNIX-like systems.