Fuzzy markup language: Difference between revisions

Revision as of 10:51, 11 January 2013

Revision as of 10:52, 11 January 2013

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* eXtensible Stylesheet Language Transformations (XSLT) in order to convert a fuzzy controller description into a specific programming language.

===The First Layer: FML Syntax===

FML syntax is composed of XML tags and attributes which describe the different components of a fuzzy logic controller listed below:

*fuzzy knowledge base;

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===The second layer: FML Grammar===

The FML tags used to build a fuzzy controller represent the set of lexemes used to create fuzzy expressions. However, in order to realize a well-formed XML-based language, an FML context-free grammar is necessary and described in the following. The FML context-free grammar is modeled by XML file in the form of a XML Schema Document (XSD) which expresses the set of rules to which a document must conform in order to be considered a ''valid'' FML document. Based on the previous definition, a portion of the FML XSD regarding the knowledge base definition is given below.

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===The third layer: FML Synthesis===

Since an FML program realizes only a static view of a fuzzy system, the so-called eXtensible Stylesheet Language Translator (XSLT) is provided to change this static view to a computable version. In particular, the XSLT technology is used convert a fuzzy controller description into a general-purpose computer language to be computed on several hardware platforms. Currently, a XSLT converting FML program in runnable Java code has been implemented. In this way, thanks to the transparency capabilities provided by Java virtual machines, it is possible to obtain a fuzzy controller modeled in high level way by means of FML and runnable on a plethora of hardware architectures through Java technologies. However, XSLT can be also used for converting FML programs in legacy languages related to a particular hardware or in other general purpose languages.