The Graphical Query Language:
A GHMM-based tool for querying and clustering Gene-Expression time-course data

(c) 2003-2004 Alexander Schliep (c) 2004-2005 Ivan G. Costa

GQL is a suite of tools for analyizing time-course experiments. Currently, it is adapted to gene expression data. The two main tools are GQLQuery, for querying data sets, and GQLCluster, which provides a way for computing groupings based on a number of methods (model-based clustering using HMMs as cluster models and estimation of a mixture of HMMs).

Availability

GQL is freely available under the GPL. The first public release of GQL is available in source form and binaries form Windows or Mac.

Note that downloading and using GQL implies acceptance of the GPL. GQL is not freeware, nor public domain and the copyright will be enforced. As the GPL has strong consequences for any work derived from GQL, commercial entities can inquire about non-exclusive licenses.

If you use GQL in your research, please do cite the aforementioned paper(s).

GQLQuery: Querying time-courses

The GUI has been ported to Python using Tkinter and the brand-new Python bindings for GHMM. It runs on all Linux/Unix boxes. Executable binaries for MAC and Windows are provided.

GQLCluster: Finding groups in time-courses