language alternation search

[A Cristia]

Dear Leonid,

Thank you for the fast response. Gladys would like to extract are *pairs* 
of sentences, one spoken in one language, the other in another. Imagine a 
sequence like this:

   1. English
   2. 
*English *
   3. *French*
   4. French
   5. 
*French *
   6. *English*
   
Gladys would like to extract sentences 2-3 (switch Eng->Fr), and 5-6 
(switch Fr->Eng).

Of course, this can be approximated by using kwal, extracting the [- spa] 
sentences with some context, and then looking through by hand to see if the 
context is also in Spanish (so not a switch) or in Qom (yes, it's a switch, 
and thus part of what we would like to extract). I wonder if there is an 
elegant solution for this in CLAN already.

If I were to do this in bash, I'd do something not very elegant like 
(imagining there is only the content of the transcription):
sed -E '/[- spa]/!s/^/[- qom]/' | #add [- qom] to all lines NOT marked with 
[- spa]
   tr '\n' '€' |                             #next replace the line breaks 
by a placeholder
   sed 's/€\(.....)/\1€\1/g' |       #duplicate the language marker on each 
side of the placeholder
   tr '€' '\n'  |                            #translate back the 
placeholder into  line breaks
grep -A 1 -B 1 '[- qom]*[- spa]'  # and finally extract sentences that have 
both language markers

Does that make more sense? Thank you in advance,

Alex

On Thursday, March 23, 2017 at 8:27:02 PM UTC+1, Spektor, Leonid: CMU wrote:
>
> Alex,
>
>     I am not sure what do you mean by "LANGUAGE SWITCH", but you can use 
> +s"[- spa]" option to analyze only utterances with "[- spa]" code and -s"[- 
> spa]" option to analyze only utterances that do not have "[- spa]" code. If 
> this doesn't help, then please email to me with more input data files 
> examples and examples of output that you want to get.
>
> Leonid.
>
>
> On 23-03-17 14:19, A Cristia wrote:
>
> Dear clan users,
>
> In a bilingual corpus, is there a way to search for pairs of sentences 
> where a language switch has occurred? A search for the tagged language will 
> only reveal switches from the minor to the major language, but we'd like to 
> extract both:
>
> *FAC:    ʔaqaixana . 
> *FAC:    ten qaica naxa qaicaʔ . 
> *FAC:    [- spa] vamos afuera . <---- LANGUAGE SWITCH FROM THE PREVIOUS 
> SENTENCE TO THIS SENTENCE (major to minor -- can be found searching for [- 
> spa])
> *FAC:    ñaq qaica ten  paʔatauec na . <---- LANGUAGE SWITCH FROM THE 
> PREVIOUS SENTENCE TO THIS SENTENCE (minor to major -- can it be found?)
> *FAC:    ñaq qaica ten . 
>
>
>
> Thank you in advance,
>
> Gladys Ojea and Alex Cristia
>
>
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