[Blindmath] From MathML to CML (and Nemeth)

[Sina Bahram]

this peaked my interest. I'm not sure I agree with this premise that presentation MathML is more appropriate, ever. It is more
conventional. It is more common. It is easier to create. Etc. However, more appropriate might be going extremely far.

My humble understanding of Nemeth as a computer scientist and blind user of it, as well as some wonderful conversations with its
creator, is that it allows for the semantic mapping, into Braille, of mathematics. This mapping is not necessarily bidirectional as
the process is sometimes lossy; therefore, a presentation based view is rather inappropriate, I'd say, respectfully, because
presentational would most likely imply a one to one mapping; whereas, a semantic mapping, one based on definitions, meanings, and so
forth, is necessarily much more appropriate, and definitely harder to accomplish, but what I believe Nemeth's goals to be.
Furthermore, isolating Nemeth into the presentational domain, I believe, underestimates it's power in conveying the meaning of the
mathematics being represented.

Take care,
Sina

Website: www.SinaBahram.com
Twitter: @SinaBahram

-----Original Message-----
From: blindmath-bounces at nfbnet.org [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Susan Jolly
Sent: Tuesday, May 22, 2012 1:47 PM
To: blindmath at nfbnet.org
Subject: Re: [Blindmath] From MathML to CML (and Nemeth)

Nemeth is based primarily on presentation since that is all that sighted 
persons typically have access to so the use of Presentation MathML is 
actually more appropriate than Content MathML would be.

There are several experienced sighted Nemeth transcribers on this list and 
while not certified I am quite familiar with Nemeth.  Rather than a video if 
you would post typeset print math and the corresponding Nemeth somewhere I'm 
sure at least one of us would be glad to check it for you.

However, it would probably be better to check your translations with 
existing examples. If you scroll down to the last PDF link on this page for 
BANA UEBC Sampler 2 you can download a large number of 
professionally-transcribed examples of print math and the corresponding 
Nemeth braille. While the PDF file is intended for sighted persons and shows 
the braille as simulated braille, the corresponding electronic braille files 
are available on the same page.
http://www.iceb.org/ubcbhdr.html

Susan J.



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