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A speech act model of air traffic control dialogue
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A speech act model of air traffic control dialogue
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5785423572007_199207.ward.karen.ms.pdf
Description
Rights
http://www.ohsu.edu/xd/education/library/services/theses-dissertations/rights-statement.cfm
Title
A
speech
act
model
of
air
traffic
control
dialogue
Creator.PersonalName
Ward
,
Karen
Thesis.Degree
M.S.
Thesis.Major
Computer Science and Engineering
Thesis.DateDegreeAwarded
July
1992
Institution
Oregon Graduate Institute of Science & Technology
Department
Dept. of Computer Science and Engineering
Thesis.Advisor/Mentor
Novick, David G.
Thesis.Committee
Cole, Ronald A.
Hook, James G.
Subject.LCSH
Automatic speech recognition
Air traffic control
Call Number
Q183.5.OGI W272 1992
Description.Abstract
This
thesis
develops
a
computational
representation
for
air
traffic
control
dialogue
.
Such
a
model
might
be
used
in
developing
a
spoken
language
understanding
system
to
represent
and
reason
about
utterances
.
Currently
,
speaker-independent
,
continuous
speech
systems
rely
primarily
on
constraints
such
as
sharply
limited
vocabularies
,
simple
grammars
, and
word-pair
probabilities
to
limit
the
possibilities
considered
in
mapping
sounds
to
phonemes
,
words
, and
ultimately
,
meaning
.
When
speech
understanding
systems
are
applied
to
unconstrained
speech
in
real-world
settings
,
though
, the
range
and
complexity
of
potential
utterances
increases
dramatically
. To
overcome
this
complexity
,
additional
knowledge
sources
are
needed
. Of
particular
interest
are "
higher-level
"
knowledge
sources
,
which
describe
information
above
the
phonemic
level
.
One
class
of
higher-level
knowledge
that
is
beginning
to
prove
useful
in
speech
understanding
is
dialogue
modeling
. By
predicting
the
form
and
content
of the
next
utterance
from the
content
of
prior
utterances
,
dialogue
models
allow
the
recognizer
to
consider
only
a
subset
of the
application's
full
grammar
and
vocabulary
.
Dialogue
context
is
also
used
after
the
fact
to
correct
the
output
of the
speech
recognizer
, to
select
among
several
possible
interpretations
of the
utterance
, to
handle
ellipses
and
anaphora
, and to
disambiguate
meaning
. This
thesis
will
focus
on the
use
of
two
dialogue
models
,
speech
acts
and the
collaborative
view
of
conversation
, to
explain
and
predict
the
intended
meaning
of an
utterance
. The
domain
selected
for this
analysis
is
air
traffic
control
,
which
exhibits
several
characteristics
that
make
it
interesting
for
both
dialogue
modeling
and
speech
recognition
studies
. For this
analysis
,
radio
exchanges
between
air
traffic
controllers
and
pilots
were
taped
and
transcribed
. A
complete
dialogue
,
consisting
of
all
exchanges
between
the
controller
and the
pilot
of a
commercial
flight
approaching
the
airport
to
land
, was
explicated
at the
speech
act
level
in
terms
of the
beliefs
and
intentions
of the
conversants
.
Language
eng
Type
Text
Format.Use
Needs Adobe Acrobat Reader to view.
Format.FileType
pdf
Format.FileSize
6727.191 KB
OCLC number
26348485
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