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Icon FOOL (Fuzzy Organizer OLdenburg) is a fuzzy system development tool with interactive 'foolproof' graphical user interface. FOX is a small but powerful fuzzy engine. It works based on the databases created with FOOL. Some features:

  • Support of most known fuzzy operators (36 different to be exact). Exact tuning of every application of an operator possible. Parameterized operators fully supported.
  • Five types of standard membership functions plus an unlimited number of user defined membership functions.
  • Fuzzy and/or floating point (crisp) input and output values possible. No limits except your double-floating point range.
  • Graphical visualisation of your self-defined linguistic variables and the operators via xprism from the Khoros package or Gnuplot.
  • Building of multi-stage and/or parallel fuzzy systems possible via simple shell scripts (or whatever language you like).
  • Online help
  • Easyily portable fuzzy engine (FOX) with low hard- and software requirements. FOX only needs an ANSI-C compiler.
  • Includes a complete user's manual (~100 pages) in postscript-format a step-by-step example.

There is a reimplementation of the current GUI FOOL in Java, called Java-FOOL.

Current Version:   1.5

License Type:   GPL

Home Site:

Source Code Availability:   Yes

Available Binary Packages:

  • Debian Package:   No
  • RedHat RPM Package:   No
  • Other Packages:   Yes (tar.gz, for Linux ELF, Solaris, Ultrix and OSF)

Targeted Platforms:

FOOL compiles on all machines with an ANSI C Compiler and XView-Libraries. (FOOL was tested successfully on DEC MIPS, Linux and Sun OS)
Java-FOOL will work on Java platforms.

Software/Hardware Requirements:

Binaries: Linux (gnuplot recommended)
Sources: C-Compiler and XView-Libraries.

Other Links: (FTP site)

Mailing Lists/USENET News Groups:


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