From: Karim Alloula <Karim.Alloula@ensiacet.fr>

Date: Thu, 13 May 2010 14:19:46 +0200

To: "'David McKain'" <david.mckain@ed.ac.uk>

Cc: <www-math@w3.org>

Message-ID: <EF76985C1652485096CC1DC99B4385E1@ensiacet.fr>

Date: Thu, 13 May 2010 14:19:46 +0200

To: "'David McKain'" <david.mckain@ed.ac.uk>

Cc: <www-math@w3.org>

Message-ID: <EF76985C1652485096CC1DC99B4385E1@ensiacet.fr>

Dear David, In fact we already had a look at the SnuggleTeX Web site, and found it was certainly the best approach to add some widely used semantic rules to the plain Presentation MathML. Of course, you defined rules only for a limited subset of mathematical expressions, but the approach you give can be easily extended to other operators for example by introducing additional precedence rules. I try the stylesheets you sent me and give you my feedback! Karim Alloula INPT-ENSIACET 4, allée Emile Monso 31432 Toulouse CEDEX 04 - France Tél : +33.(0)5.34.32.33.53 Mobile : +33.(0)6.30.61.10.38 -----Message d'origine----- De : David McKain [mailto:david.mckain@ed.ac.uk] Envoyé : jeudi 13 mai 2010 12:45 À : Karim Alloula Cc : www-math@w3.org Objet : Re: Presentation to Content MathML transform Hi Karim, > I am looking at some XSL stylesheet to transform Presentation MathML > to Content MathML. > Can anyone provide me such a tool? As Michael has said, this kind of transformation is not easy to do for various reasons. If you can simplify or restrict the context you're working in, you may find that things become slightly more amenable. One thing I investigated recently was trying this kind of transformation on very simple Presentation MathML corresponding to the kind of basic algebraic expressions you might encounter in UK School or early FE/HE mathematics teaching, to investigate possible applications for e-Assessment at this level. Working within this very restricted domain simplifies the problem significantly, as did working solely on the Presentation MathML output of a LaTeX to MathML converter (SnuggleTeX) and/or the MathML generated by ASCIIMathML, since the resulting "source" Presentation MathML has a fairly well- defined structure. In my case, the conversion was done using a pipeline of two XSLT 2.0 stylesheets. The first converted the display-oriented Presentation MathML into something with a more "semantic" structure, and the second then converted this to Content MathML. (A third stylesheet also generates linear input format for the Maxima computer algebra system.) You're welcome to play around with these stylesheets to see if the approach might be useful for you. (I found XSLT 2.0 extremely powerful here for various reasons. E.g. I could define XPath functions for matching certain PMathML constructs, which made the code very expressive.) There are, of course, many caveats and limitations to this approach...! Some demos: http://www2.ph.ed.ac.uk/snuggletex/UpConversionDemo (LaTeX input to CMathML) http://www2.ph.ed.ac.uk/snuggletex/ASCIIMathMLUpConversionDemo (ASCIIMathML input to CMathML) More information on the underlying process: http://www2.ph.ed.ac.uk/snuggletex/documentation/semantic-enrichment.html Cheers, David. -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.Received on Thursday, 13 May 2010 12:20:23 UTC

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