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Apache Lucene is an information retrieval API originally implemented in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform. Lucene has been ported to other programming languages including Perl, C#, C++, Python, Ruby and PHP.
Beagle is a desktop-independent service for indexing and searching your data. The Beagle daemon transparently monitors your data and updates the index to reflect any changes. On an inotify-enabled system, these updates (e.g. new files, emails, chat) happen more-or-less in real time. Beagle ... [More]
Tracker is a first class object database, extensible tag/metadata database, search tool and indexer. It can trawl through your hard drive and index existing files and data stores It has been designed from the ground up to be very lightweight (the tracker daemon consumes ~4MB of RAM in typical ... [More]
Sphinx is a full-text search engine, it's a standalone search engine, meant to provide fast, size-efficient and relevant full-text search functions to other applications. Sphinx was specially designed to integrate well with SQL databases and scripting languages.
BlackRay is a relational database system designed to offer performance features commonly associated with search engines. It offers SQL support and sophisticated operational and management features. Load-balancing and operational stability by means of N+1 redundance are included. BlackRay is ... [More]
Key features: Support for http, https, ftp, nntp and news URL schemes. htdb virtual URL scheme for indexing SQL databases. Indexes text/html, text/xml, text/plain, audio/mpeg (MP3) and image/gif mime types natively. External parsers support for other document types, including Microsoft Word ... [More]
Flax is a project to develop an open source enterprise search engine application based on the Xapian search engine library. It also contains a clean-and-simple Python interface suitable for many users of Xapian, built on the standard Xapian Python interface, together with various other add-ons such as performance testing utilities.
Pyndexter provides a uniform API for accessing a variety of full-text search and indexing engines. It aims to be to full-text indexing systems what the Python DB API is to databases. It presents a uniform query syntax to the user, with support for quoted search terms, boolean operations ... [More]
Namazu is a full-text search engine intended for easy use. Not only does it work as a small or medium scale Web search engine, but also as a personal search system for email or other files.
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