Welcome to GFL Website

About Graphic Frame Logic (GFL)                                              This site is under construction

Ontobrowser Ontobrowser is a limited java implementation of GFL based on TouchGraph library   It requires  Java version 1.3 or higher. On MS IE it would require Sun Java Plugin.  Here are a few simple examples that illustrate the capabilities  of Ontobrowser.   Valuation Object Ecosystem Services Biomes Classification Valuation Methods   Cluster Demo   Features Demo

GFL stands for Graphic Frame Logic. It is a graphical form of popular F-Logic formalism intended for visual representation of ontologies and database queries.  In potentiality, GFL can combine  the best feature of semantic networks, conceptual graphs and UML. At the moment it is a novel  technique for specification browsing, and queries of large ontologies. Unlike other graphic formats for knowledge representation GFL is    extensible. It allows to introduce new graphic symbols and precisely define their semantics.  GFL is   an integrated part of Ecosystem Services Database (ESD) which will provide a graphical description of data and queries available in ESD.  In the later stages we will also support graphical design of  ESD queries.  

See ppt presentation for overview of GFL

 

Download the Ontobrowser Source


                             Send your comments to skrivov@uvm.edu