[agtk-devel] [gilles@harfang.homelinux.org: AG Questions]

[Haejoong L. <hae...@un...>]

----- Forwarded message from Gilles Sadowski <gi...@ha...> -----

Date: Tue, 19 Nov 2002 00:16:47 +0100
From: Gilles Sadowski <gi...@ha...>
To: hae...@un...
Subject: AG Questions

Hi.
I sent you the following mail 5 days ago, and only today I got a message 
from my mail server that it hadn't been able to deliver it!  So I try 
again in the hope you'll get it this time.
Best regards.

Haejoong Lee wrote:

>I'm do sorry, I thought you were on the mailing list.
>Here is Steven's answer for your question. -- Haejoong
>
>----- Forwarded message from Steven Bird <sb...@cs...> -----
>
>To: Haejoong Lee <hae...@un...>
>cc: Kazuaki Maeda <ma...@un...>,
>   Xiaoyi Ma <xm...@un...>, agt...@li...
>From: Steven Bird <sb...@cs...>
>Subject: Validating feature values
>Date: Fri, 18 Oct 2002 11:32:03 EDT
>
>[...]
>
Thanks for the answer.  Indeed I only subscribed to 'agtk-announce'.
Right now, I wanted to subscribe to 'agtk-devel' but, strangely, 2 of
the 3 agtk mailing lists don't show up on the sourceforge page!

So I hope you won't mind my asking another round of questions directly
to you.

1.  You probably know the speech analysis software "Praat".  Are there
some filter tools that would enable data interchange between Praat and
AGTK tools?  That could be something like a converter from Praat 'Text
File' format to an "ag.dtd" conformant document.  But a more elaborate
access would be through a "standard" module that could insert Praat data
via any AGTK-based annotation tool...
Going the other direction (AGTK -> Praat) would be interesting too (e.g.
to do a tone analysis on selected parts of a speech signal being
annotated with AGTK, and directly insert the result...), using the
'sendpraat' utility program...

2.  Does AGLIB have provision for dealing with "distributed" AG.  By
distributed, I mean, for example, 2 documents referring to the same
signal, but containing different types of <Features>?  I already asked
this question, and I think the answer was 'yes', but could you point out
where in the code this is dealt with?

3.  Is there a tool for converting 'Transcriber' data into AG?

4.  Could you explain the difference between the 'type' attribute in
<Annotation> and <Feature> (because I've noticed that in many examples,
the 2 are in fact assigned the same value)?

5.  About the problem of validating <Feature>s, Steven Bird said:

> [...] An ongoing research activity is to define an AG query language 
which can be
> used to make declarations of well-formedness, then compile this into SQL
> for efficient execution.  This would make it possible for any AG data 
file
> to document the details of its structure (by including a query expression
> in its header, say), and likewise for AG tools to document the 
assumptions
> they make about AG data.  Going a step further, we might be able to
> automatically determine what tools could be applied to what AG data.
> Unfortunately this is all pie in the sky right now.[...]


Do you think the W3C XQuery language (and, somehow, RDF) could be used 
for that purpose?


Many thanks for your time.

Gilles Sadowski



----- End forwarded message -----