[Corpora-List] token clustering tool

[Murk Wuite]

Dear all,

Does anyone know of a tool (or algorithm), preferably available freely
for research purposes, that takes as its input a corpus only and
produces as its output clusters of tokens that occur close to each other
relatively often?

Best wishes,

Murk Wuite
MA student at the Department of Language and Speech, Katholieke
Universiteit Nijmegen, The Netherlands