Tregex 2.0.2

Tregex - An application for matching patterns in tree structures.

An application for matching patterns in tree structures.

Tregex is a tool for matching patterns in trees, based on tree relationships and regular expression matches on nodes (the name is short for "tree regular expressions").

It contains essentially the same functionality as TGrep2 (which had a superset of the functionality of the original tgrep), plus several extremely useful relations for natural language trees, for example "A is the lexical head of B", and "A and B share a (hand-specified) variable substring" (useful for finding nodes coindexed with each other).

Because it does not create preprocessed indexed corpus files, it is however somewhat slower than TGrep2 when searching over large treebanks. As a Java application, it is platform independent, and can be used programmatically in Java software.

There is also both a graphical interface (also platform independent) and a command line interface through the TregexPattern main method. To launch the graphical interface double click the stanford-tregex.jar file.

Requirements:

- Java

Tregex 2.0.2 is licensed as Freeware for the Windows operating system / platform. Tregex is provided as a free download for all software users (Freeware).