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University of Namur
Segmentation of LSFB data
Gabarro-Lopez, Silvia; Meurant, Laurence
Publication date:
2014
Document Version
Peer reviewed version
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Citation for pulished version (HARVARD):
Gabarro-Lopez, S & Meurant, L 2014, 'Segmentation of LSFB data', Paper presented at Current issues on sign language corpus linguistics. Workshop of the Groupe de contact FRS-FNRS “Linguistique des langues des signes de Belgique” , Namur, Belgium, 31/10/14.
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Segmentation of
LSFB data
Sílvia Gabarró-López & Laurence Meurant
Plan
¡
Guidelines 1.0
¡
Why?
¡
How?
¡
What?
¡
Inter-segmenters’ comparison
¡
Methodology
¡
Comparison
¡
Analysis
¡
Guidelines 2.0
Guidelines 1.0
Why? How? What?
Why?
¡
Buoys and discourse markers
ex: List buoys
¡
Repetitions, hesitations, etc.
1 2 3
1 2 3
within one stretch
across stretches
X X X X X
X X X X X
within one stretch
across stretches
Need of a standard measure
for discourse studies
How?
¡
Standardise a minimalist set of
cues for
boundaries
¡ Manual and non-manual cues
¡ Limited in number
¡
By agreeing on boundaries, getting an operational
segmentation into « discourse
stretches/units
»
What?
¡
How did we get to our Guidelines 1.0?
¡ 1h corpus mostly in monologic situations
¡ 2 experiments: cut and copy test
¡ 5 LSFB signers (3 deaf and 2 hearing): where do they
segment discourses?
¡ Synthesis of the criteria influencing their segmentation
¡ Generalisation in terms of guidelines
¡
Practice
¡ Cut test : Where do you feel there is a boundary?
What?
¡
Guidelines 1.0: « Segment at
¡ every pause or sign hold
¡ the end of every CA or CD (role shift) [narratives]
¡ every eye blink layered with a head nod or eye blink with
gaze change in the close context.
¡ Remove all eye blinks layered with head nods acting as
syntactic linkers. »
¡
Practice
Is it operative and
sharable?
Inter-segmenters’
comparison
Methodology Comparison Analysis
Methodology
¡
Data
¡ Dialogue from the LSFB Corpus (S040 – S041)
¡ Topic: « advantages of being deaf or hearing »
¡ ≈ 3 min.
¡
Segmentation
¡ Guidelines 1.0
¡ Pauses : cf. Ingrid Notarrigo
¡ S1: stop during a sign (beginning or end)
¡ S2 : stop between signs (hands in a neutral position in
space, crossed or in contact with the body)
¡ S3: EUH, MHH, etc.
Comparison
¡
Number of segments
¡ S040: SGL=21 LM=55
¡ S041: SGL=22 LM=40
¡
Overall appearance of the differences: ‘included in’
¡
All the boundaries of SGL are shared by LM.
¡
S040: 12 identical segmentations
7 differing segmentations
S041: 13 identical segmentations
9 differing segmentations
SGL
LM LM LM LM
S040: from 2 to 14 stretches in LM for 1 in SGL S041: from 2 to 4 stretches in LM for 1 in SGL
Analysis
Cues that made the difference between LM and SGL
¡ Pauses: including S2 and S3 (+ lengthened signs)
¡ Role shifts: even in a non-narrative production
¡ Eye blinks with change in eye gaze: several noticed by LM but not by SGL
¡ Interaction markers: not mentioned in the guidelines (monologic data for the
guidelines)
Eye blink with
Guidelines 2.0
To be added To be refined To be tested again
To be added
¡
Interaction markers
¡
End of a role shift in all types of discourses
To be refined
¡
Pauses to be taken into account
¡ S2 (stop between signs)
¡ S3 (EUH, MMHH + lengthened signs)
¡
Length of the pauses
¡ S2: from the average length of the signer’s signs?
¡ S3: from the median length of the signer’s signs?
¡
Eye blinks layered with head nods
¡ Too uncertain?
