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From "Luc Maisonobe (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MATH-237) Implement an OpenMath Phrasebook
Date Sun, 28 Dec 2008 18:59:44 GMT

    [ https://issues.apache.org/jira/browse/MATH-237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12659454#action_12659454
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Luc Maisonobe commented on MATH-237:
------------------------------------

I don't understand everything in your proposal.
Could you provide us an example of a binding between one already accepted symbol in the dictionaries
and the matching code in commons-math and most importantly how it would be used by end users
?

As far as we limit ourselves to a static point of view, I see what this could mean (for example
Phrasebook.getInstance().getValue("matrix") could return both RealMatrixImpl.class and DenseRealMatrix.class).
However, how do we use this once we have it ? The dynamic behaviour may be hard to implement.

Do you want to have a complete interpreter for OpenMath syntax that would be executed after
some automatic translation ? This would be a complete project by itself I think.

> Implement an OpenMath Phrasebook
> --------------------------------
>
>                 Key: MATH-237
>                 URL: https://issues.apache.org/jira/browse/MATH-237
>             Project: Commons Math
>          Issue Type: New Feature
>            Reporter: Bryce Nordgren
>            Priority: Minor
>
> The two major XML grammars for mathematical information on the web are OpenMath and MathML.
 Both grammars construct mathematical expressions using the symbols from OpenMath content
dictionaries.  A reference set of stable content dictionaries is maintained by the openmath
society, such that fixed mathematical concepts have a fixed/permanent location within their
"namespace".  This offers a unique opportunity to map the implementations in commons math
to a universal conceptual space such that users of the library can request a "concept" without
necessarily knowing what class implements it.
> A "Phrasebook" is a concept articulated by the OpenMath standard as the item bearing
the responsibility for matching a symbol in the content dictionary with an implementation
on the host system.  Including a "Phrasebook" in commons math would facilitate mapping of
the orthodox OpenMath symbolset to code provided by the library.  
> I would envision this as a registry, with the function of a multimap (unique keys/multiple
values).  Keys would be the fully qualified name of the OpenMath symbol, and values would
be the code to execute.
> Thoughts?

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