SIPINA has a long history. Before the current version (version 3.3, May 2010), we distributed a data mining tool dedicated exclusively to the induction of decision graphs, a generalization of decision trees. Of course, the state-of-the-art decision trees algorithms are also included (such as C4.5, CHAID).
This version, called 2.5, is online since 1995. Its development was suspended in 1998 when I started programming the version 3.0.
This version 2.5 is the only free tool which implements the decision graphs algorithm. This is a real curiosity in this respect. This is the reason for which I still distribute this version to date.
On the other hand, this 2.5 version has some severe limitations. Among others, it can handle only small dataset, up to 16.380 instances. If you want to implement a decision tree or if you want to handle a large dataset, it is always advised to use the current version (version 3.0 and later).
Setup of the old 2.5 version: Setup_Sipina_V25.exe
User's guide: EnglishDocSipinaV25.pdf
References:
J. Oliver, "Decision Graphs - An Extension of Decision Trees", in Proc. Of the 4-th Int. workshop on Artificial Intelligence and Statistics, pages 343-350, 1993.
R. Rakotomalala, "Induction Graphs", PhD Thesis, University of Lyon 1, 1997 (in French).
D. Zighed, R. Rakotomalala, "Graphes d'Induction - Apprentissage et Data Mining", Hermes, 2000 (in French).
