Research

Current research activities

Publications

A tutorial on utility functions

Software

the aGrUM library

Features

Downloads/install

Reference manual

the lemon library

Features

Downloads/install

Reference manual

Lemon stands for "library for easily modeling and operating on netwoks". It is a C++ GUI library built on top of aGrUM and designed for easily building graphical applications using graphical models such as Bayesian networks, influence diagrams, decision trees, GAI networks or Markov decision processes. The library is flexible enough to create quite easily interfaces for new types of graphs. For speed issues, aGrUM relies on openGL to draw graphs and on gtkmm for the rest of the graphical interface. All graphical models computations are intended to be performed by aGrUM.

Note that Lemon is currently under heavy development and, as such, its API is still quite unstable.

A lemon Bayes net window

Displaying multiple views of a graph within several windows

• Lemon relies on gtkmm for all GUI operations, except for graph rendering where openGL is used for speed issues.
• Lemon supports internationalization through the use of gettext.
• Lemon supports posix threads using gnu common c++.
• Multiple graphs can be opened simultaneously within lemon, and a given graph can be rendered in several windows, displaying different views.
• Creating new types of graphs within Lemon and inserting them in menus is quite easy (it is sufficient to inherit from LMN::Graph to add a graph in the appropriate menus).
• Lemon contains various automatic graph placement algorithms that can be used to display graphs in a user-frendly manner.
• Lemon is designed to be extensible: adding new menus, new types of graphs is quite simple.
• Lemon already contains "basic" graphical models (e.g., Bayesian networks) that are ready-to-use and that can serve as examples to develop new types of graphs.

Lemon has been successfully compiled using g++ under linux (Fedora core 6) but it is intended to be cross-platform, in particular, it should run under windows (compiled with dev-C++).

©2007 C.G.