Sean Fulop's
research page
Following is an overview of my projects, divided into Phonetics and Learning Theory.
I am currently interested in experimental phonetics for linguistics, the phonetics-phonology interface, digital signal processing of speech, speaker identification, and aeroacoustic modeling of speech.
(2012) "Phonetics
and Speech Processing," in Encyclopedia of the Sciences
of Learning published by Springer.
Speech Spectrum Analysis, (2011) published by Springer in the Signals and Communication Technology series.
(2010) "Accuracy of formant measurement for synthesized vowels using the reassigned spectrogram and comparison with linear prediction." Journal of the Acoustical Society of America 127(4).
Fulop and Sandra Ferrari Disner (2009) "Advanced time-frequency displays applied to forensic speaker identification." Proceedings of Meetings on Acoustics (open access).
Fulop and Chris Golston
(2008)
"Breathy and whispery
voicing in White Hmong." Proceedings
of
Meetings
on
Acoustics (open access).
(2007) "Phonetic applications of the time-corrected instantaneous frequency spectrogram." Phonetica 64.
Fulop and Sandra Ferrari Disner (2007) "The reassigned spectrogram as a tool for voice identification." Proceedings of the International Congress of Phonetic Sciences XVI.
Fulop and Kelly Fitz (2007) "Separation of components from impulses in reassigned spectrograms." Journal of the Acoustical Society of America 121(3).
Fulop and Kelly Fitz (2006) "A spectrogram for the twenty-first century." Acoustics Today, July.
Fulop and Kelly Fitz (2006) “Algorithms computing
the
time-corrected instantaneous frequency (reassigned)
spectrogram, with
applications.” Journal of
the Acoustical
Society of America. January.
Fulop, P. Ladefoged, F. Liu,
and R.
Vossen
(2003) "Yeyi
clicks:
Acoustic
description and analysis," Phonetica
60(4).
Fulop and M. Dobrovolsky (1999) "An instrumental analysis of Sharchhop obstruents." Linguistics of the Tibeto-Burman Area 22.1.
Fulop, E. Kari, and P.
Ladefoged
(1998) "An
acoustic
study of the tongue root
contrast in Degema vowels." Phonetica
55(1-2).
I'm now serving as Associate
Editor for the Journal of the Acoustical Society of
America. I handle manuscripts related to signal
processing, and I also put together the Reviews of
Acoustical Patents each month.
The Time-Corrected Instantaneous Frequency "Reassigned" Spectrogram.
This
project
is
chiefly
about a new technique for measuring frequency that does away
with
frequency --- or rather, its strict mathematical definition
in
Fourier's terms.
You could visit the web page of
my
collaborator on this
work, Kelly
Fitz of
Starkey Hearing
I have also created a repository
of
code for these routines, downloadable as a zipfile
including documentation. The code for my book is more
recent, however.
The reassigned spectrogram is now
being applied
to an
exciting new development in speaker recognition for which I
just obtained a U.S. Patent, a first for Fresno State.
I'm working with Darin Flynn of
the
University of Calgary on a new theory of phonetic features
and
distinctive features.
I'm working with Chris Golston on
the
status of the segment in modern phonology.
I'm working with John Lewis and
Ginette
Hupé of the University of Ottawa on the analysis of
communicative signalling in weakly electric fish. We
are
completing a paper on a new method for detecting abrupt
phase shifting
in individual components of the signals emitted.
I started a blog on Mathematical Linguistics Etc. Check it out, to see my take on latest finds in the literature, and some of my thoughts on things related to mathematics of language.
(2012) "Mathematical Linguistics
and Learning Theory," in Encyclopedia of the Sciences of Learning
published by Springer.
(2011) "Erratum to: Grammar induction by
unification of
type-logical lexicons," Journal of Logic,
Language, and
Information.
(2010) "Grammar induction by unification of
type-logical lexicons," Journal of Logic,
Language, and
Information.
"Learnability of
type-logical grammars," in Electronic
Notes
in
Theoretical
Computer
Science 53. A newly corrected
version appeared in the journal Research
on
Language
and
Computation in 2007.
(2005) "Semantic bootstrapping of type-logical grammar," Journal of Logic, Language, and Information 14(1):49-86.
"Mathematical
results on
syntactic learnability,"
invited
presentation at the Chicago Linguistic Society 2003.
This was
mangled when published in the proceedings volume, so I
invite readers
to
look at the proof in the "collected works" file posted here.
PhD dissertation On the Logic and Learning of Language (1999).
A complete
rewrite
and
expansion of my dissertation is published by Trafford
(2004).
I collaborated with a
Fulop and E. Keenan (2002) "Compositionality: A global perspective." In Semantics, Linguistische Berichte Sonderheft 10, published by Helmut Buske Verlag, edited by Fritz Hamm and Ede Zimmerman.
Thanks to the above paper,
my Erdȍs Number is 4!
In the interest of making
all my
work
easily available, I have compiled all the mathematics of
language,
computational linguistics, and learning theory publications
that I deemed worthy into a single PDF volume of "collected
works."
To
download: Collected works on
mathematics of
language and learning theory
I'm currently guest editing the topic "Formal Learning
Theory Relevant to Cognitive Science," which will be coming
out in future issues of Topics
in Cognitive Science. I'm also serving on the
editorial board there for a while.
I'm co-editing this topic with Nick Chater; he and I are
also collaborating on a review article on "Learnability
theory," which is forthcoming in Wiley Interdisciplinary Reviews: Cognitive
Science.
I wrote a
paper on proof nets for substructural
propositional logics, including grammatical logics. I
haven't found a good place to publish this yet, but it is
posted on arXiv.org.
I'm also
interested in the computational complexity and computability
of analog computations, such as the harmonic
analyzers. The
objective is to explore complexity of analog computation in
the brain.