The Lemur Project is a collaboration between the Center for Intelligent Information Retrieval at the University of Massachusetts Amherst and the Language Technologies Institute at Carnegie Mellon University. It develops the Lemur Toolkit, an open-source (BSD license) software framework for building language modeling and information retrieval software, and the Indri search engine. This toolkit is used for developing search engines, text analysis tools, browser toolbars, and data resources in the area of IR.
Contents
The programming languages used to create Lemur are C and C++ and it comes along with the source files and a make file. The provided source code can be modified for the purpose of developing new libraries. It is compatible with various operating systems which include UNIX (Linux and Solaris) and Windows XP.
Features
Lemur supports the following features:
Components
Lemur Project has the following components:
Latest Version
The latest version of the Indri search engine is 5.8.
The final and latest available version of the Lemur Toolkit is version 4.12.
Indri Search Engine
The Indri search engine is one of the components of the Lemur toolkit. It is open source as well. The query language that is used in Indri allows researchers to index data or structure documents using simple command line instructions. Indri offers flexibility in terms of adaptation to various current applications. It also can be distributed across a cluster of nodes for high performance. Indri search engine can handle large collections of data and can understand various data formats like HTML and XML.
The Indri API supports various programming and scripting languages like C++, Java, C#, and PHP. The latest available version of Indri is 5.6.