---
_id: '18632'
abstract:
- lang: eng
text: "We present measurements of the effective electron mass in biaxial tensile
strained silicon on insulator (SSOI) material with 1.2 GPa stress and in unstrained
SOI. Hall-bar metal oxide semiconductor field effect transistors on 60 nm SSOI
and SOI were fabricated and Shubnikov–de Haas oscillations in the temperature
range of T=0.4–4 K for magnetic fields of B=0–10 T were measured. The effective
electron mass in SSOI and SOI samples was determined as mt=(0.20±0.01)m0. This
result is in excellent agreement with first-principles calculations of the\r\neffective
electron mass in the presence of strain."
article_number: '182101'
article_type: original
author:
- first_name: Sebastian F.
full_name: Feste, Sebastian F.
last_name: Feste
- first_name: Thomas
full_name: Schäpers, Thomas
last_name: Schäpers
- first_name: Dan
full_name: Buca, Dan
last_name: Buca
- first_name: Qing Tai
full_name: Zhao, Qing Tai
last_name: Zhao
- first_name: Joachim
full_name: Knoch, Joachim
last_name: Knoch
- first_name: Mohammed
full_name: Bouhassoune, Mohammed
last_name: Bouhassoune
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Siegfried
full_name: Mantl, Siegfried
last_name: Mantl
citation:
ama: Feste SF, Schäpers T, Buca D, et al. Measurement of effective electron mass
in biaxial tensile strained silicon on insulator. Applied Physics Letters.
2009;95(18). doi:10.1063/1.3254330
apa: Feste, S. F., Schäpers, T., Buca, D., Zhao, Q. T., Knoch, J., Bouhassoune,
M., Schindlmayr, A., & Mantl, S. (2009). Measurement of effective electron
mass in biaxial tensile strained silicon on insulator. Applied Physics Letters,
95(18), Article 182101. https://doi.org/10.1063/1.3254330
bibtex: '@article{Feste_Schäpers_Buca_Zhao_Knoch_Bouhassoune_Schindlmayr_Mantl_2009,
title={Measurement of effective electron mass in biaxial tensile strained silicon
on insulator}, volume={95}, DOI={10.1063/1.3254330},
number={18182101}, journal={Applied Physics Letters}, publisher={American Institute
of Physics}, author={Feste, Sebastian F. and Schäpers, Thomas and Buca, Dan and
Zhao, Qing Tai and Knoch, Joachim and Bouhassoune, Mohammed and Schindlmayr, Arno
and Mantl, Siegfried}, year={2009} }'
chicago: Feste, Sebastian F., Thomas Schäpers, Dan Buca, Qing Tai Zhao, Joachim
Knoch, Mohammed Bouhassoune, Arno Schindlmayr, and Siegfried Mantl. “Measurement
of Effective Electron Mass in Biaxial Tensile Strained Silicon on Insulator.”
Applied Physics Letters 95, no. 18 (2009). https://doi.org/10.1063/1.3254330.
ieee: 'S. F. Feste et al., “Measurement of effective electron mass in biaxial
tensile strained silicon on insulator,” Applied Physics Letters, vol. 95,
no. 18, Art. no. 182101, 2009, doi: 10.1063/1.3254330.'
mla: Feste, Sebastian F., et al. “Measurement of Effective Electron Mass in Biaxial
Tensile Strained Silicon on Insulator.” Applied Physics Letters, vol. 95,
no. 18, 182101, American Institute of Physics, 2009, doi:10.1063/1.3254330.
short: S.F. Feste, T. Schäpers, D. Buca, Q.T. Zhao, J. Knoch, M. Bouhassoune, A.
Schindlmayr, S. Mantl, Applied Physics Letters 95 (2009).
date_created: 2020-08-28T22:24:30Z
date_updated: 2025-12-16T08:10:54Z
ddc:
- '530'
department:
- _id: '296'
- _id: '170'
- _id: '230'
doi: 10.1063/1.3254330
external_id:
isi:
- '000271666800034'
file:
- access_level: open_access
content_type: application/pdf
creator: schindlm
date_created: 2020-08-28T22:28:31Z
date_updated: 2020-08-30T15:29:43Z
description: © 2009 American Institute of Physics
file_id: '18633'
file_name: 1.3254330.pdf
file_size: 198836
relation: main_file
title: Measurement of effective electron mass in biaxial tensile strained silicon
on insulator
file_date_updated: 2020-08-30T15:29:43Z
has_accepted_license: '1'
intvolume: ' 95'
isi: '1'
issue: '18'
language:
- iso: eng
oa: '1'
publication: Applied Physics Letters
publication_identifier:
eissn:
- 1077-3118
issn:
- 0003-6951
publication_status: published
publisher: American Institute of Physics
quality_controlled: '1'
status: public
title: Measurement of effective electron mass in biaxial tensile strained silicon
on insulator
type: journal_article
user_id: '16199'
volume: 95
year: '2009'
...
---
_id: '18634'
abstract:
- lang: eng
text: A computational method to obtain optical conductivities from first principles
is presented. It exploits a relation between the conductivity and the complex
dielectric function, which is constructed from the full electronic band structure
within the random-phase approximation. In contrast to the Drude model, no empirical
parameters are used. As interband transitions as well as local-field effects are
properly included, the calculated spectra are valid over a wide frequency range.
As an illustration I present quantitative results for selected simple metals,
noble metals, and ferromagnetic transition metals. The implementation is based
on the full-potential linearized augmented-plane-wave method.
author:
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
citation:
ama: 'Schindlmayr A. Optical conductivity of metals from first principles. In: Chigrin
DN, ed. Theoretical and Computational Nanophotonics: Proceedings of the 2nd
International Workshop. Vol 1176. AIP Conference Proceedings. American Institute
of Physics; 2009:157-159. doi:10.1063/1.3253897'
apa: 'Schindlmayr, A. (2009). Optical conductivity of metals from first principles.
In D. N. Chigrin (Ed.), Theoretical and Computational Nanophotonics: Proceedings
of the 2nd International Workshop (Vol. 1176, Issue 1, pp. 157–159). American
Institute of Physics. https://doi.org/10.1063/1.3253897'
bibtex: '@inproceedings{Schindlmayr_2009, series={AIP Conference Proceedings}, title={Optical
conductivity of metals from first principles}, volume={1176}, DOI={10.1063/1.3253897},
number={1}, booktitle={Theoretical and Computational Nanophotonics: Proceedings
of the 2nd International Workshop}, publisher={American Institute of Physics},
author={Schindlmayr, Arno}, editor={Chigrin, Dmitry N.}, year={2009}, pages={157–159},
collection={AIP Conference Proceedings} }'
chicago: 'Schindlmayr, Arno. “Optical Conductivity of Metals from First Principles.”
In Theoretical and Computational Nanophotonics: Proceedings of the 2nd International
Workshop, edited by Dmitry N. Chigrin, 1176:157–59. AIP Conference Proceedings.
American Institute of Physics, 2009. https://doi.org/10.1063/1.3253897.'
ieee: 'A. Schindlmayr, “Optical conductivity of metals from first principles,” in
Theoretical and Computational Nanophotonics: Proceedings of the 2nd International
Workshop, Bad Honnef, 2009, vol. 1176, no. 1, pp. 157–159, doi: 10.1063/1.3253897.'
mla: 'Schindlmayr, Arno. “Optical Conductivity of Metals from First Principles.”
Theoretical and Computational Nanophotonics: Proceedings of the 2nd International
Workshop, edited by Dmitry N. Chigrin, vol. 1176, no. 1, American Institute
of Physics, 2009, pp. 157–59, doi:10.1063/1.3253897.'
short: 'A. Schindlmayr, in: D.N. Chigrin (Ed.), Theoretical and Computational Nanophotonics:
Proceedings of the 2nd International Workshop, American Institute of Physics,
2009, pp. 157–159.'
conference:
end_date: 2009-10-30
location: Bad Honnef
name: Theoretical and Computational Nanophotonics
start_date: 2009-10-28
date_created: 2020-08-28T22:35:13Z
date_updated: 2025-12-16T11:09:27Z
ddc:
- '530'
department:
- _id: '296'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1063/1.3253897
editor:
- first_name: Dmitry N.
full_name: Chigrin, Dmitry N.
last_name: Chigrin
external_id:
arxiv:
- '1109.2771'
isi:
- '000280420600055'
file:
- access_level: open_access
content_type: application/pdf
creator: schindlm
date_created: 2020-08-28T22:42:54Z
date_updated: 2020-08-30T15:19:49Z
description: © 2009 American Institute of Physics
file_id: '18635'
file_name: APC000157.pdf
file_size: 259756
relation: main_file
title: Optical conductivity of metals from first principles
file_date_updated: 2020-08-30T15:19:49Z
has_accepted_license: '1'
intvolume: ' 1176'
isi: '1'
issue: '1'
language:
- iso: eng
oa: '1'
page: 157-159
publication: 'Theoretical and Computational Nanophotonics: Proceedings of the 2nd
International Workshop'
publication_identifier:
eissn:
- 1551-7616
isbn:
- 978-0-7354-0715-2
issn:
- 0094-243X
publication_status: published
publisher: American Institute of Physics
quality_controlled: '1'
series_title: AIP Conference Proceedings
status: public
title: Optical conductivity of metals from first principles
type: conference
user_id: '16199'
volume: 1176
year: '2009'
...
---
_id: '2737'
author:
- first_name: Thomas
full_name: Gries, Thomas
last_name: Gries
- first_name: Margarete
full_name: Redlin, Margarete
id: '135'
last_name: Redlin
citation:
ama: Gries T, Redlin M. International Integration and Regional Development in
China . Vol 2008.66. WIDER Research Papers, United Nations University (UNU);
2008.
apa: Gries, T., & Redlin, M. (2008). International integration and regional
development in China (Vol. 2008.66). WIDER Research Papers, United Nations
University (UNU).
bibtex: '@book{Gries_Redlin_2008, series={Research paper / UNU-WIDER }, title={International
integration and regional development in China }, volume={2008.66}, publisher={WIDER
Research Papers, United Nations University (UNU)}, author={Gries, Thomas and Redlin,
Margarete}, year={2008}, collection={Research paper / UNU-WIDER } }'
chicago: Gries, Thomas, and Margarete Redlin. International Integration and Regional
Development in China . Vol. 2008.66. Research Paper / UNU-WIDER . WIDER Research
Papers, United Nations University (UNU), 2008.
ieee: T. Gries and M. Redlin, International integration and regional development
in China , vol. 2008.66. WIDER Research Papers, United Nations University
(UNU), 2008.
mla: Gries, Thomas, and Margarete Redlin. International Integration and Regional
Development in China . Vol. 2008.66, WIDER Research Papers, United Nations
University (UNU), 2008.
short: T. Gries, M. Redlin, International Integration and Regional Development in
China , WIDER Research Papers, United Nations University (UNU), 2008.
date_created: 2018-05-14T08:12:22Z
date_updated: 2022-01-06T06:57:38Z
department:
- _id: '475'
- _id: '200'
- _id: '202'
main_file_link:
- open_access: '1'
url: https://www.econstor.eu/handle/10419/45083
oa: '1'
page: '37'
publication_identifier:
isbn:
- 978-92-9230-116-3
publisher: WIDER Research Papers, United Nations University (UNU)
series_title: 'Research paper / UNU-WIDER '
status: public
title: 'International integration and regional development in China '
type: working_paper
user_id: '135'
volume: '2008.66'
year: '2008'
...
---
_id: '1940'
author:
- first_name: Mario
full_name: Mense, Mario
last_name: Mense
- first_name: Christian
full_name: Scheideler, Christian
id: '20792'
last_name: Scheideler
citation:
ama: 'Mense M, Scheideler C. SPREAD: an adaptive scheme for redundant and fair storage
in dynamic heterogeneous storage systems. In: Proceedings of the Nineteenth
Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008, San Francisco, California,
USA, January 20-22, 2008. SIAM; 2008:1135--1144.'
apa: 'Mense, M., & Scheideler, C. (2008). SPREAD: an adaptive scheme for redundant
and fair storage in dynamic heterogeneous storage systems. In Proceedings of
the Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008, San
Francisco, California, USA, January 20-22, 2008 (pp. 1135--1144). SIAM.'
bibtex: '@inproceedings{Mense_Scheideler_2008, title={SPREAD: an adaptive scheme
for redundant and fair storage in dynamic heterogeneous storage systems}, booktitle={Proceedings
of the Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008,
San Francisco, California, USA, January 20-22, 2008}, publisher={SIAM}, author={Mense,
Mario and Scheideler, Christian}, year={2008}, pages={1135--1144} }'
chicago: 'Mense, Mario, and Christian Scheideler. “SPREAD: An Adaptive Scheme for
Redundant and Fair Storage in Dynamic Heterogeneous Storage Systems.” In Proceedings
of the Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008,
San Francisco, California, USA, January 20-22, 2008, 1135--1144. SIAM, 2008.'
ieee: 'M. Mense and C. Scheideler, “SPREAD: an adaptive scheme for redundant and
fair storage in dynamic heterogeneous storage systems,” in Proceedings of the
Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008, San Francisco,
California, USA, January 20-22, 2008, 2008, pp. 1135--1144.'
mla: 'Mense, Mario, and Christian Scheideler. “SPREAD: An Adaptive Scheme for Redundant
and Fair Storage in Dynamic Heterogeneous Storage Systems.” Proceedings of
the Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008, San
Francisco, California, USA, January 20-22, 2008, SIAM, 2008, pp. 1135--1144.'
short: 'M. Mense, C. Scheideler, in: Proceedings of the Nineteenth Annual ACM-SIAM
Symposium on Discrete Algorithms, SODA 2008, San Francisco, California, USA, January
20-22, 2008, SIAM, 2008, pp. 1135--1144.'
date_created: 2018-03-29T09:30:18Z
date_updated: 2022-01-06T06:54:03Z
ddc:
- '040'
department:
- _id: '79'
- _id: '63'
file:
- access_level: open_access
content_type: application/pdf
creator: florida
date_created: 2018-04-13T10:03:13Z
date_updated: 2018-04-13T10:03:13Z
file_id: '2341'
file_name: SODA08.pdf
file_size: 211264
relation: main_file
file_date_updated: 2018-04-13T10:03:13Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
page: 1135--1144
publication: Proceedings of the Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms,
SODA 2008, San Francisco, California, USA, January 20-22, 2008
publisher: SIAM
status: public
title: 'SPREAD: an adaptive scheme for redundant and fair storage in dynamic heterogeneous
storage systems'
type: conference
urn: '19408'
user_id: '14955'
year: '2008'
...
---
_id: '4256'
abstract:
- lang: eng
text: "We present phase-resolved pulse propagation measurements that allow us to
fully describe the transition\r\nbetween several light–matter interaction regimes.
The complete range from linear excitation to the breakdown\r\nof the photonic
bandgap on to self-induced transmission and self-phase modulation is studied on
a\r\nhigh-quality multiple-quantum-well Bragg structure. An improved fast-scanning
cross-correlation\r\nfrequency-resolved optical gating setup is applied to retrieve
the pulse phase with an excellent signal-tonoise\r\nratio. Calculations using
the semiconductor Maxwell–Bloch equations show qualitative agreement\r\nwith the
experimental findings. "
article_number: '1384'
article_type: original
author:
- first_name: Tilman Höner
full_name: zu Siederdissen, Tilman Höner
last_name: zu Siederdissen
- first_name: Nils C.
full_name: Nielsen, Nils C.
last_name: Nielsen
- first_name: Jürgen
full_name: Kuhl, Jürgen
last_name: Kuhl
- first_name: Martin
full_name: Schaarschmidt, Martin
last_name: Schaarschmidt
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Andreas
full_name: Knorr, Andreas
last_name: Knorr
- first_name: Galina
full_name: Khitrova, Galina
last_name: Khitrova
- first_name: Hyatt M.
full_name: Gibbs, Hyatt M.
last_name: Gibbs
- first_name: Stephan W.
full_name: Koch, Stephan W.
last_name: Koch
- first_name: Harald
full_name: Giessen, Harald
last_name: Giessen
citation:
ama: zu Siederdissen TH, Nielsen NC, Kuhl J, et al. Transition between different
coherent light–matter interaction regimes analyzed by phase-resolved pulse propagation.
Optics Letters. 2008;30(11). doi:10.1364/ol.30.001384
apa: zu Siederdissen, T. H., Nielsen, N. C., Kuhl, J., Schaarschmidt, M., Förstner,
J., Knorr, A., … Giessen, H. (2008). Transition between different coherent light–matter
interaction regimes analyzed by phase-resolved pulse propagation. Optics Letters,
30(11). https://doi.org/10.1364/ol.30.001384
bibtex: '@article{zu Siederdissen_Nielsen_Kuhl_Schaarschmidt_Förstner_Knorr_Khitrova_Gibbs_Koch_Giessen_2008,
title={Transition between different coherent light–matter interaction regimes
analyzed by phase-resolved pulse propagation}, volume={30}, DOI={10.1364/ol.30.001384},
number={111384}, journal={Optics Letters}, publisher={The Optical Society}, author={zu
Siederdissen, Tilman Höner and Nielsen, Nils C. and Kuhl, Jürgen and Schaarschmidt,
Martin and Förstner, Jens and Knorr, Andreas and Khitrova, Galina and Gibbs, Hyatt
M. and Koch, Stephan W. and Giessen, Harald}, year={2008} }'
chicago: Siederdissen, Tilman Höner zu, Nils C. Nielsen, Jürgen Kuhl, Martin Schaarschmidt,
Jens Förstner, Andreas Knorr, Galina Khitrova, Hyatt M. Gibbs, Stephan W. Koch,
and Harald Giessen. “Transition between Different Coherent Light–Matter Interaction
Regimes Analyzed by Phase-Resolved Pulse Propagation.” Optics Letters 30,
no. 11 (2008). https://doi.org/10.1364/ol.30.001384.
ieee: T. H. zu Siederdissen et al., “Transition between different coherent
light–matter interaction regimes analyzed by phase-resolved pulse propagation,”
Optics Letters, vol. 30, no. 11, 2008.
mla: zu Siederdissen, Tilman Höner, et al. “Transition between Different Coherent
Light–Matter Interaction Regimes Analyzed by Phase-Resolved Pulse Propagation.”
Optics Letters, vol. 30, no. 11, 1384, The Optical Society, 2008, doi:10.1364/ol.30.001384.
short: T.H. zu Siederdissen, N.C. Nielsen, J. Kuhl, M. Schaarschmidt, J. Förstner,
A. Knorr, G. Khitrova, H.M. Gibbs, S.W. Koch, H. Giessen, Optics Letters 30 (2008).
date_created: 2018-08-29T09:12:59Z
date_updated: 2022-01-06T07:00:43Z
ddc:
- '530'
doi: 10.1364/ol.30.001384
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-29T09:13:36Z
date_updated: 2018-09-04T20:01:11Z
file_id: '4257'
file_name: 2005 Siederdissen et al_Transition between different coherent light–matter
interaction regimes analyzed by phase-resolved pulse propagation.pdf
file_size: 125355
relation: main_file
file_date_updated: 2018-09-04T20:01:11Z
has_accepted_license: '1'
intvolume: ' 30'
issue: '11'
keyword:
- tet_topic_polariton
- tet_topic_qw
language:
- iso: eng
oa: '1'
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: The Optical Society
status: public
title: Transition between different coherent light–matter interaction regimes analyzed
by phase-resolved pulse propagation
type: journal_article
urn: '42568'
user_id: '158'
volume: 30
year: '2008'
...
---
_id: '5648'
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: Schryen G. Effektivität und Effizienz von Anti-Spam-Maßnahmen. Linux Technical
Review. 2008;(7).
apa: Schryen, G. (2008). Effektivität und Effizienz von Anti-Spam-Maßnahmen. Linux
Technical Review, (7).
bibtex: '@article{Schryen_2008, title={Effektivität und Effizienz von Anti-Spam-Maßnahmen},
number={7}, journal={Linux Technical Review}, publisher={Linux New Media AG},
author={Schryen, Guido}, year={2008} }'
chicago: Schryen, Guido. “Effektivität Und Effizienz von Anti-Spam-Maßnahmen.” Linux
Technical Review, no. 7 (2008).
ieee: G. Schryen, “Effektivität und Effizienz von Anti-Spam-Maßnahmen,” Linux
Technical Review, no. 7, 2008.
mla: Schryen, Guido. “Effektivität Und Effizienz von Anti-Spam-Maßnahmen.” Linux
Technical Review, no. 7, Linux New Media AG, 2008.
short: G. Schryen, Linux Technical Review (2008).
date_created: 2018-11-14T14:41:58Z
date_updated: 2022-01-06T07:02:20Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:17:40Z
date_updated: 2018-12-18T13:17:40Z
file_id: '6319'
file_name: Linux Technical Review 2008 - Spam.pdf
file_size: 41784
relation: main_file
file_date_updated: 2018-12-18T13:17:40Z
has_accepted_license: '1'
issue: '7'
language:
- iso: eng
oa: '1'
publication: Linux Technical Review
publisher: Linux New Media AG
status: public
title: Effektivität und Effizienz von Anti-Spam-Maßnahmen
type: journal_article
user_id: '61579'
year: '2008'
...
---
_id: '5649'
abstract:
- lang: eng
text: The Estonian parliamentary election in 2007 is regarded as a success story
of large-scale Internet elections. I use this election in a single case study
on practical security to show that low quality of security and its management
does not necessarily prevent large-scale Internet elections from being conducted.
I also provide research propositions with regard to future challenges for large-scale
Internet elections.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Schryen G. Practical Security of Large-scale Elections: An Exploratory Case
Study of Internet Voting in Estonia. In: 7th Workshop on E-Business (WEB 2008,
AIS Special Interest Group on E-Business). ; 2008.'
apa: 'Schryen, G. (2008). Practical Security of Large-scale Elections: An Exploratory
Case Study of Internet Voting in Estonia. In 7th Workshop on e-Business (WEB
2008, AIS Special Interest Group on E-Business).'
bibtex: '@inproceedings{Schryen_2008, title={Practical Security of Large-scale Elections:
An Exploratory Case Study of Internet Voting in Estonia}, booktitle={7th Workshop
on e-Business (WEB 2008, AIS Special Interest Group on E-Business)}, author={Schryen,
Guido}, year={2008} }'
chicago: 'Schryen, Guido. “Practical Security of Large-Scale Elections: An Exploratory
Case Study of Internet Voting in Estonia.” In 7th Workshop on E-Business (WEB
2008, AIS Special Interest Group on E-Business), 2008.'
ieee: 'G. Schryen, “Practical Security of Large-scale Elections: An Exploratory
Case Study of Internet Voting in Estonia,” in 7th Workshop on e-Business (WEB
2008, AIS Special Interest Group on E-Business), 2008.'
mla: 'Schryen, Guido. “Practical Security of Large-Scale Elections: An Exploratory
Case Study of Internet Voting in Estonia.” 7th Workshop on E-Business (WEB
2008, AIS Special Interest Group on E-Business), 2008.'
short: 'G. Schryen, in: 7th Workshop on E-Business (WEB 2008, AIS Special Interest
Group on E-Business), 2008.'
date_created: 2018-11-14T14:43:23Z
date_updated: 2022-01-06T07:02:20Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:18:21Z
date_updated: 2018-12-18T13:18:21Z
file_id: '6320'
file_name: Schryen - Practical Security of Large-scale Elections - LNBIP - web version.pdf
file_size: 273231
relation: main_file
file_date_updated: 2018-12-18T13:18:21Z
has_accepted_license: '1'
keyword:
- Internet voting
- large-scale election
- Estonian parliamen- tary election
- security
- security management
language:
- iso: eng
oa: '1'
publication: 7th Workshop on e-Business (WEB 2008, AIS Special Interest Group on E-Business)
status: public
title: 'Practical Security of Large-scale Elections: An Exploratory Case Study of
Internet Voting in Estonia'
type: conference
user_id: '61579'
year: '2008'
...
---
_id: '1169'
abstract:
- lang: eng
text: The standard approach of job search engines disregards the structural aspect
of job announcements in the Web. Bag-of-words indexing leads to a high amount
of noise. In this paper we describe a method that uses local grammars to transform
unstructured Web pages into structured forms. Evaluation experiments show high
efficiency of information access to the generated documents.
article_type: original
author:
- first_name: Sandra
full_name: Bsiri, Sandra
last_name: Bsiri
- first_name: Michaela
full_name: Geierhos, Michaela
id: '42496'
last_name: Geierhos
orcid: 0000-0002-8180-5606
- first_name: Christoph
full_name: Ringlstetter, Christoph
last_name: Ringlstetter
citation:
ama: Bsiri S, Geierhos M, Ringlstetter C. Structuring Job Search via Local Grammars.
Research in Computing Science. 2008;33:201-212.
apa: Bsiri, S., Geierhos, M., & Ringlstetter, C. (2008). Structuring Job Search
via Local Grammars. Research in Computing Science, 33, 201–212.
bibtex: '@article{Bsiri_Geierhos_Ringlstetter_2008, title={Structuring Job Search
via Local Grammars}, volume={33}, journal={Research in Computing Science}, publisher={National
Polytechnic Institute of Mexico}, author={Bsiri, Sandra and Geierhos, Michaela
and Ringlstetter, Christoph}, year={2008}, pages={201–212} }'
chicago: 'Bsiri, Sandra, Michaela Geierhos, and Christoph Ringlstetter. “Structuring
Job Search via Local Grammars.” Research in Computing Science 33 (2008):
201–12.'
ieee: S. Bsiri, M. Geierhos, and C. Ringlstetter, “Structuring Job Search via Local
Grammars,” Research in Computing Science, vol. 33, pp. 201–212, 2008.
mla: Bsiri, Sandra, et al. “Structuring Job Search via Local Grammars.” Research
in Computing Science, vol. 33, National Polytechnic Institute of Mexico, 2008,
pp. 201–12.
short: S. Bsiri, M. Geierhos, C. Ringlstetter, Research in Computing Science 33
(2008) 201–212.
date_created: 2018-02-12T11:24:37Z
date_updated: 2022-01-06T06:51:06Z
department:
- _id: '36'
- _id: '1'
- _id: '579'
extern: '1'
intvolume: ' 33'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.cicling.org/2008/RCS-vol-33/16-Bsiri.pdf
oa: '1'
page: 201-212
publication: Research in Computing Science
publication_identifier:
issn:
- 1870-4069
publication_status: published
publisher: National Polytechnic Institute of Mexico
quality_controlled: '1'
status: public
title: Structuring Job Search via Local Grammars
type: journal_article
user_id: '42496'
volume: 33
year: '2008'
...
---
_id: '11776'
abstract:
- lang: eng
text: 'The term uncertainty decoding has been phrased for a class of robustness
enhancing algorithms in automatic speech recognition that replace point estimates
and plug-in rules by posterior densities and optimal decision rules. While uncertainty
can be incorporated in the model domain, in the feature domain, or even in both,
we concentrate here on feature domain approaches as they tend to be computationally
less demanding. We derive optimal decision rules in the presence of uncertain
observations and discuss simplifications which result in computationally efficient
realizations. The usefulness of the presented statistical framework is then exemplified
for two types of realworld problems: The first is improving the robustness of
speech recognition towards incomplete or corrupted feature vectors due to a lossy
communication link between the speech capturing front end and the backend recognition
engine. And the second is the well-known and extensively studied issue of improving
the robustness of the recognizer towards environmental noise.'
author:
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: Haeb-Umbach R. Uncertainty Decoding in Automatic Speech Recognition. 2008
ITG Conference on Voice Communication (SprachKommunikation). 2008:1-7.
apa: Haeb-Umbach, R. (2008). Uncertainty Decoding in Automatic Speech Recognition.
2008 ITG Conference on Voice Communication (SprachKommunikation), 1–7.
bibtex: '@article{Haeb-Umbach_2008, title={Uncertainty Decoding in Automatic Speech
Recognition}, journal={2008 ITG Conference on Voice Communication (SprachKommunikation)},
author={Haeb-Umbach, Reinhold}, year={2008}, pages={1–7} }'
chicago: Haeb-Umbach, Reinhold. “Uncertainty Decoding in Automatic Speech Recognition.”
2008 ITG Conference on Voice Communication (SprachKommunikation), 2008,
1–7.
ieee: R. Haeb-Umbach, “Uncertainty Decoding in Automatic Speech Recognition,” 2008
ITG Conference on Voice Communication (SprachKommunikation), pp. 1–7, 2008.
mla: Haeb-Umbach, Reinhold. “Uncertainty Decoding in Automatic Speech Recognition.”
2008 ITG Conference on Voice Communication (SprachKommunikation), 2008,
pp. 1–7.
short: R. Haeb-Umbach, 2008 ITG Conference on Voice Communication (SprachKommunikation)
(2008) 1–7.
date_created: 2019-07-12T05:28:02Z
date_updated: 2022-01-06T06:51:08Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/Ha08.pdf
oa: '1'
page: 1-7
publication: 2008 ITG Conference on Voice Communication (SprachKommunikation)
status: public
title: Uncertainty Decoding in Automatic Speech Recognition
type: journal_article
user_id: '44006'
year: '2008'
...
---
_id: '11789'
abstract:
- lang: eng
text: In distributed and network speech recognition the actual recognition task
is not carried out on the user{\rq}s terminal but rather on a remote server in
the network. While there are good reasons for doing so, a disadvantage of this
client-server architecture is clearly that the communication medium may introduce
errors, which then impairs speech recognition accuracy. Even sophisticated channel
coding cannot completely prevent the occurrence of residual bit errors in the
case of temporarily adverse channel conditions, and in packet-oriented transmission
packets of data may arrive too late for the given real-time constraints and have
to be declared lost. The goal of error concealment is to reduce the detrimental
effect that such errors may induce on the recipient of the transmitted speech
signal by exploiting residual redundancy in the bit stream at the source coder
output. In classical speech transmission a human is the recipient, and erroneous
data are reconstructed so as to reduce the subjectively annoying effect of corrupted
bits or lost packets. Here, however, a statistical classifier is at the receiving
end, which can benefit from knowledge about the quality of the reconstruction.
In this book chapter we show how the classical Bayesian decision rule needs to
be modified to account for uncertain features, and illustrate how the required
feature posterior density can be estimated in the case of distributed speech recognition.
Some other techniques for error concealment can be related to this approach. Experimental
results are given for both a small and a medium vocabulary recognition task and
both for a channel exhibiting bit errors and a packet erasure channel.
author:
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
- first_name: Valentin
full_name: Ion, Valentin
last_name: Ion
citation:
ama: 'Haeb-Umbach R, Ion V. Error Concealement. In: Lindenberg B, Tan Z-H, eds.
Automatic Speech Recognition on Mobile Devices and over Communication Networks.
Vol Advances in Computer Vision and Pattern Recognition. Advances in Pattern Recognition.
Springer; 2008:187-210.'
apa: Haeb-Umbach, R., & Ion, V. (2008). Error Concealement. In B. Lindenberg
& Z.-H. Tan (Eds.), Automatic Speech Recognition on Mobile Devices and
over Communication Networks (Vol. Advances in Computer Vision and Pattern
Recognition, pp. 187–210). Springer.
bibtex: '@inbook{Haeb-Umbach_Ion_2008, series={Advances in Pattern Recognition},
title={Error Concealement}, volume={Advances in Computer Vision and Pattern Recognition},
booktitle={Automatic Speech Recognition on Mobile Devices and over Communication
Networks}, publisher={Springer}, author={Haeb-Umbach, Reinhold and Ion, Valentin},
editor={Lindenberg, Borge and Tan, Zheng-HuaEditors}, year={2008}, pages={187–210},
collection={Advances in Pattern Recognition} }'
chicago: Haeb-Umbach, Reinhold, and Valentin Ion. “Error Concealement.” In Automatic
Speech Recognition on Mobile Devices and over Communication Networks, edited
by Borge Lindenberg and Zheng-Hua Tan, Advances in Computer Vision and Pattern
Recognition:187–210. Advances in Pattern Recognition. Springer, 2008.
ieee: R. Haeb-Umbach and V. Ion, “Error Concealement,” in Automatic Speech Recognition
on Mobile Devices and over Communication Networks, vol. Advances in Computer
Vision and Pattern Recognition, B. Lindenberg and Z.-H. Tan, Eds. Springer, 2008,
pp. 187–210.
mla: Haeb-Umbach, Reinhold, and Valentin Ion. “Error Concealement.” Automatic
Speech Recognition on Mobile Devices and over Communication Networks, edited
by Borge Lindenberg and Zheng-Hua Tan, vol. Advances in Computer Vision and Pattern
Recognition, Springer, 2008, pp. 187–210.
short: 'R. Haeb-Umbach, V. Ion, in: B. Lindenberg, Z.-H. Tan (Eds.), Automatic Speech
Recognition on Mobile Devices and over Communication Networks, Springer, 2008,
pp. 187–210.'
date_created: 2019-07-12T05:28:17Z
date_updated: 2022-01-06T06:51:08Z
department:
- _id: '54'
editor:
- first_name: Borge
full_name: Lindenberg, Borge
last_name: Lindenberg
- first_name: Zheng-Hua
full_name: Tan, Zheng-Hua
last_name: Tan
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/HaIo08.pdf
oa: '1'
page: 187-210
publication: Automatic Speech Recognition on Mobile Devices and over Communication
Networks
publisher: Springer
series_title: Advances in Pattern Recognition
status: public
title: Error Concealement
type: book_chapter
user_id: '44006'
volume: Advances in Computer Vision and Pattern Recognition
year: '2008'
...
---
_id: '11820'
abstract:
- lang: eng
text: In this paper, we derive an uncertainty decoding rule for automatic speech
recognition (ASR), which accounts for both corrupted observations and inter-frame
correlation. The conditional independence assumption, prevalent in hidden Markov
model-based ASR, is relaxed to obtain a clean speech posterior that is conditioned
on the complete observed feature vector sequence. This is a more informative posterior
than one conditioned only on the current observation. The novel decoding is used
to obtain a transmission-error robust remote ASR system, where the speech capturing
unit is connected to the decoder via an error-prone communication network. We
show how the clean speech posterior can be computed for communication links being
characterized by either bit errors or packet loss. Recognition results are presented
for both distributed and network speech recognition, where in the latter case
common voice-over-IP codecs are employed.
author:
- first_name: Valentin
full_name: Ion, Valentin
last_name: Ion
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: Ion V, Haeb-Umbach R. A Novel Uncertainty Decoding Rule With Applications to
Transmission Error Robust Speech Recognition. IEEE Transactions on Audio, Speech,
and Language Processing. 2008;16(5):1047-1060. doi:10.1109/TASL.2008.925879
apa: Ion, V., & Haeb-Umbach, R. (2008). A Novel Uncertainty Decoding Rule With
Applications to Transmission Error Robust Speech Recognition. IEEE Transactions
on Audio, Speech, and Language Processing, 16(5), 1047–1060. https://doi.org/10.1109/TASL.2008.925879
bibtex: '@article{Ion_Haeb-Umbach_2008, title={A Novel Uncertainty Decoding Rule
With Applications to Transmission Error Robust Speech Recognition}, volume={16},
DOI={10.1109/TASL.2008.925879},
number={5}, journal={IEEE Transactions on Audio, Speech, and Language Processing},
author={Ion, Valentin and Haeb-Umbach, Reinhold}, year={2008}, pages={1047–1060}
}'
chicago: 'Ion, Valentin, and Reinhold Haeb-Umbach. “A Novel Uncertainty Decoding
Rule With Applications to Transmission Error Robust Speech Recognition.” IEEE
Transactions on Audio, Speech, and Language Processing 16, no. 5 (2008): 1047–60.
https://doi.org/10.1109/TASL.2008.925879.'
ieee: V. Ion and R. Haeb-Umbach, “A Novel Uncertainty Decoding Rule With Applications
to Transmission Error Robust Speech Recognition,” IEEE Transactions on Audio,
Speech, and Language Processing, vol. 16, no. 5, pp. 1047–1060, 2008.
mla: Ion, Valentin, and Reinhold Haeb-Umbach. “A Novel Uncertainty Decoding Rule
With Applications to Transmission Error Robust Speech Recognition.” IEEE Transactions
on Audio, Speech, and Language Processing, vol. 16, no. 5, 2008, pp. 1047–60,
doi:10.1109/TASL.2008.925879.
short: V. Ion, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language
Processing 16 (2008) 1047–1060.
date_created: 2019-07-12T05:28:53Z
date_updated: 2022-01-06T06:51:10Z
department:
- _id: '54'
doi: 10.1109/TASL.2008.925879
intvolume: ' 16'
issue: '5'
keyword:
- automatic speech recognition
- bit errors
- codecs
- communication links
- corrupted observations
- decoding
- distributed speech recognition
- error-prone communication network
- feature vector sequence
- hidden Markov model-based ASR
- hidden Markov models
- inter-frame correlation
- Internet telephony
- network speech recognition
- packet loss
- speech posterior
- speech recognition
- transmission error robust speech recognition
- uncertainty decoding
- voice-over-IP codecs
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/IoHa08-1.pdf
oa: '1'
page: 1047-1060
publication: IEEE Transactions on Audio, Speech, and Language Processing
status: public
title: A Novel Uncertainty Decoding Rule With Applications to Transmission Error Robust
Speech Recognition
type: journal_article
user_id: '44006'
volume: 16
year: '2008'
...
---
_id: '11821'
abstract:
- lang: eng
text: This paper addresses the robustness of automatic speech recognition to environmental
noise. In order to account for reliability of the clean feature estimate we employ
the feature posterior density conditioned on observed noisy features to perform
uncertainty decoding. We investigate two approaches to estimate the posterior
using a discrete feature space, first conditioning only on the current observation,
and second on the whole feature sequence of an utterance. Experiments with Aurora
2 showed that the latter provides slightly better performance, as it allows for
exploiting the temporal correlations between consecutive features.
author:
- first_name: Valentin
full_name: Ion, Valentin
last_name: Ion
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: Ion V, Haeb-Umbach R. Investigations into Uncertainty Decoding Employing a
Discrete Feature Space for Noise Robust Automatic Speech Recognition. 2008
ITG Conference on Voice Communication (SprachKommunikation). 2008:1-4.
apa: Ion, V., & Haeb-Umbach, R. (2008). Investigations into Uncertainty Decoding
Employing a Discrete Feature Space for Noise Robust Automatic Speech Recognition.
2008 ITG Conference on Voice Communication (SprachKommunikation), 1–4.
bibtex: '@article{Ion_Haeb-Umbach_2008, title={Investigations into Uncertainty Decoding
Employing a Discrete Feature Space for Noise Robust Automatic Speech Recognition},
journal={2008 ITG Conference on Voice Communication (SprachKommunikation)}, author={Ion,
Valentin and Haeb-Umbach, Reinhold}, year={2008}, pages={1–4} }'
chicago: Ion, Valentin, and Reinhold Haeb-Umbach. “Investigations into Uncertainty
Decoding Employing a Discrete Feature Space for Noise Robust Automatic Speech
Recognition.” 2008 ITG Conference on Voice Communication (SprachKommunikation),
2008, 1–4.
ieee: V. Ion and R. Haeb-Umbach, “Investigations into Uncertainty Decoding Employing
a Discrete Feature Space for Noise Robust Automatic Speech Recognition,” 2008
ITG Conference on Voice Communication (SprachKommunikation), pp. 1–4, 2008.
mla: Ion, Valentin, and Reinhold Haeb-Umbach. “Investigations into Uncertainty Decoding
Employing a Discrete Feature Space for Noise Robust Automatic Speech Recognition.”
2008 ITG Conference on Voice Communication (SprachKommunikation), 2008,
pp. 1–4.
short: V. Ion, R. Haeb-Umbach, 2008 ITG Conference on Voice Communication (SprachKommunikation)
(2008) 1–4.
date_created: 2019-07-12T05:28:54Z
date_updated: 2022-01-06T06:51:10Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/IoHa08-2.pdf
oa: '1'
page: 1-4
publication: 2008 ITG Conference on Voice Communication (SprachKommunikation)
status: public
title: Investigations into Uncertainty Decoding Employing a Discrete Feature Space
for Noise Robust Automatic Speech Recognition
type: journal_article
user_id: '44006'
year: '2008'
...
---
_id: '11851'
abstract:
- lang: eng
text: 'In diesem Beitrag werden zwei neuartige akustische Strahlformungsalgorithmen
fuer einen Einsatz im KFZ diskutiert. In beiden Verfahren ist fuer jede Frequenzkomponente
der Eigenvektor zum groessten Eigenwert eines verallgemeinerten Eigenwertproblems
zu bestimmen: bei der einen Varianate stellen die Filterkoeffizienten gerade obigen
Eigenvektor dar. Sprachverzerrungen werden mit einem einkanaligen Nachfilter kompensiert.
In der anderen Variante, welche die Struktur eines ''''Generalized Sidelobe Cancellers''''
(GSC) hat, basiert die Blockiermatrix auf obiger Eigenvektorzerlegung.'
author:
- first_name: Alexander
full_name: Krueger, Alexander
last_name: Krueger
- first_name: Ernst
full_name: Warsitz, Ernst
last_name: Warsitz
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Krueger A, Warsitz E, Haeb-Umbach R. Blinde Akustische Strahlformung fuer
Anwendungen im KFZ. In: 34. Deutsche Jahrestagung Fuer Akustik (DAGA 2008).
; 2008.'
apa: Krueger, A., Warsitz, E., & Haeb-Umbach, R. (2008). Blinde Akustische Strahlformung
fuer Anwendungen im KFZ. In 34. Deutsche Jahrestagung fuer Akustik (DAGA 2008).
bibtex: '@inproceedings{Krueger_Warsitz_Haeb-Umbach_2008, title={Blinde Akustische
Strahlformung fuer Anwendungen im KFZ}, booktitle={34. Deutsche Jahrestagung fuer
Akustik (DAGA 2008)}, author={Krueger, Alexander and Warsitz, Ernst and Haeb-Umbach,
Reinhold}, year={2008} }'
chicago: Krueger, Alexander, Ernst Warsitz, and Reinhold Haeb-Umbach. “Blinde Akustische
Strahlformung Fuer Anwendungen Im KFZ.” In 34. Deutsche Jahrestagung Fuer Akustik
(DAGA 2008), 2008.
ieee: A. Krueger, E. Warsitz, and R. Haeb-Umbach, “Blinde Akustische Strahlformung
fuer Anwendungen im KFZ,” in 34. Deutsche Jahrestagung fuer Akustik (DAGA 2008),
2008.
mla: Krueger, Alexander, et al. “Blinde Akustische Strahlformung Fuer Anwendungen
Im KFZ.” 34. Deutsche Jahrestagung Fuer Akustik (DAGA 2008), 2008.
short: 'A. Krueger, E. Warsitz, R. Haeb-Umbach, in: 34. Deutsche Jahrestagung Fuer
Akustik (DAGA 2008), 2008.'
date_created: 2019-07-12T05:29:29Z
date_updated: 2022-01-06T06:51:11Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/KrWaHa08.pdf
oa: '1'
publication: 34. Deutsche Jahrestagung fuer Akustik (DAGA 2008)
status: public
title: Blinde Akustische Strahlformung fuer Anwendungen im KFZ
type: conference
user_id: '44006'
year: '2008'
...
---
_id: '11914'
abstract:
- lang: eng
text: This paper considers the convolutive blind source separation of speech sources
in the presence of spatially correlated noise. We introduce a method for estimating
the scaled mixing matrix from the sources to the microphones even if coherent
noise is present. This is achieved by combining time-frequency sparseness with
the generalized eigenvalue decomposition of the power spectral density matrix
(PSD) of the noisy speech and noise-only microphone signals. Separation is performed
by spatial filtering with coefficients constructed by Gram-Schmidt orthogonalization
which places spatial nulls at the interferer{^A}?`s direction. Experimental results
show that our approach is capable of separating 2 sources in a reverberant environment
(RT60=0ms..500ms) degraded by significant directional noise.
author:
- first_name: Dang Hai
full_name: Tran Vu, Dang Hai
last_name: Tran Vu
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: Tran Vu DH, Haeb-Umbach R. Blind Speech Separation in Presence of Correlated
Noise with Generalized Eigenvector Beamforming. 2008 ITG Conference on Voice
Communication (SprachKommunikation). 2008:1-4.
apa: Tran Vu, D. H., & Haeb-Umbach, R. (2008). Blind Speech Separation in Presence
of Correlated Noise with Generalized Eigenvector Beamforming. 2008 ITG Conference
on Voice Communication (SprachKommunikation), 1–4.
bibtex: '@article{Tran Vu_Haeb-Umbach_2008, title={Blind Speech Separation in Presence
of Correlated Noise with Generalized Eigenvector Beamforming}, journal={2008 ITG
Conference on Voice Communication (SprachKommunikation)}, author={Tran Vu, Dang
Hai and Haeb-Umbach, Reinhold}, year={2008}, pages={1–4} }'
chicago: Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation in
Presence of Correlated Noise with Generalized Eigenvector Beamforming.” 2008
ITG Conference on Voice Communication (SprachKommunikation), 2008, 1–4.
ieee: D. H. Tran Vu and R. Haeb-Umbach, “Blind Speech Separation in Presence of
Correlated Noise with Generalized Eigenvector Beamforming,” 2008 ITG Conference
on Voice Communication (SprachKommunikation), pp. 1–4, 2008.
mla: Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation in Presence
of Correlated Noise with Generalized Eigenvector Beamforming.” 2008 ITG Conference
on Voice Communication (SprachKommunikation), 2008, pp. 1–4.
short: D.H. Tran Vu, R. Haeb-Umbach, 2008 ITG Conference on Voice Communication
(SprachKommunikation) (2008) 1–4.
date_created: 2019-07-12T05:30:42Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/DaHa08.pdf
oa: '1'
page: 1-4
publication: 2008 ITG Conference on Voice Communication (SprachKommunikation)
status: public
title: Blind Speech Separation in Presence of Correlated Noise with Generalized Eigenvector
Beamforming
type: journal_article
user_id: '44006'
year: '2008'
...
---
_id: '11915'
abstract:
- lang: eng
text: This Paper deals with a new Technique for multi-channel separation of speech
signals from convolutive mixtures under coherent noise. We demonstrate how the
scaled transfer functions from the sources to the microphones can be estimated
even in the presence of stationary coherent noise. The key to this are generalized
eigenvalue decompositions of the power spectral density (PSD) matrices of the
noisy speech and noise-only microphone signals with a controlled estimation of
these matrices exploiting time-frequency sparseness of the speech sources. Separation
is further improved by subsequent Gram-Schmidt orthogonalization which places
spatial nulls at the interferers{\rq} directions, while noise reduction is improved
by employing a novel blocking matrix and adaptive interference canceller in a
Generalized Sidelobe Canceller (GSC)-like structure. We report promising experimental
results for 2 speech sources with significant coherent noise in reverberant environments
(RT60=0oms..500ms).
author:
- first_name: Dang Hai
full_name: Tran Vu, Dang Hai
last_name: Tran Vu
- first_name: Alexander
full_name: Krueger, Alexander
last_name: Krueger
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Tran Vu DH, Krueger A, Haeb-Umbach R. Generalized Eigenvector Blind Speech
Separation Under Coherent Noise In A GSC Configuration. In: International Workshop
on Acoustic Echo and Noise Control (IWAENC 2008). ; 2008.'
apa: Tran Vu, D. H., Krueger, A., & Haeb-Umbach, R. (2008). Generalized Eigenvector
Blind Speech Separation Under Coherent Noise In A GSC Configuration. In International
Workshop on Acoustic Echo and Noise Control (IWAENC 2008).
bibtex: '@inproceedings{Tran Vu_Krueger_Haeb-Umbach_2008, title={Generalized Eigenvector
Blind Speech Separation Under Coherent Noise In A GSC Configuration}, booktitle={International
Workshop on Acoustic Echo and Noise Control (IWAENC 2008)}, author={Tran Vu, Dang
Hai and Krueger, Alexander and Haeb-Umbach, Reinhold}, year={2008} }'
chicago: Tran Vu, Dang Hai, Alexander Krueger, and Reinhold Haeb-Umbach. “Generalized
Eigenvector Blind Speech Separation Under Coherent Noise In A GSC Configuration.”
In International Workshop on Acoustic Echo and Noise Control (IWAENC 2008),
2008.
ieee: D. H. Tran Vu, A. Krueger, and R. Haeb-Umbach, “Generalized Eigenvector Blind
Speech Separation Under Coherent Noise In A GSC Configuration,” in International
Workshop on Acoustic Echo and Noise Control (IWAENC 2008), 2008.
mla: Tran Vu, Dang Hai, et al. “Generalized Eigenvector Blind Speech Separation
Under Coherent Noise In A GSC Configuration.” International Workshop on Acoustic
Echo and Noise Control (IWAENC 2008), 2008.
short: 'D.H. Tran Vu, A. Krueger, R. Haeb-Umbach, in: International Workshop on
Acoustic Echo and Noise Control (IWAENC 2008), 2008.'
date_created: 2019-07-12T05:30:43Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/DaKrHa08.pdf
oa: '1'
publication: International Workshop on Acoustic Echo and Noise Control (IWAENC 2008)
status: public
title: Generalized Eigenvector Blind Speech Separation Under Coherent Noise In A GSC
Configuration
type: conference
user_id: '44006'
year: '2008'
...
---
_id: '11935'
abstract:
- lang: eng
text: The generalized sidelobe canceller by Griffith and Jim is a robust beamforming
method to enhance a desired (speech) signal in the presence of stationary noise.
Its performance depends to a high degree on the construction of the blocking matrix
which produces noise reference signals for the subsequent adaptive interference
canceller. Especially in reverberated environments the beamformer may suffer from
signal leakage and reduced noise suppression. In this paper a new blocking matrix
is proposed. It is based on a generalized eigenvalue problem whose solution provides
an indirect estimation of the transfer functions from the source to the sensors.
The quality of the new generalized eigenvector blocking matrix is studied in simulated
rooms with different reverberation times and is compared to alternatives proposed
in the literature.
author:
- first_name: Ernst
full_name: Warsitz, Ernst
last_name: Warsitz
- first_name: Alexander
full_name: Krueger, Alexander
last_name: Krueger
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Warsitz E, Krueger A, Haeb-Umbach R. Speech enhancement with a new generalized
eigenvector blocking matrix for application in a generalized sidelobe canceller.
In: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2008). ; 2008:73-76. doi:10.1109/ICASSP.2008.4517549'
apa: Warsitz, E., Krueger, A., & Haeb-Umbach, R. (2008). Speech enhancement
with a new generalized eigenvector blocking matrix for application in a generalized
sidelobe canceller. In IEEE International Conference on Acoustics, Speech and
Signal Processing (ICASSP 2008) (pp. 73–76). https://doi.org/10.1109/ICASSP.2008.4517549
bibtex: '@inproceedings{Warsitz_Krueger_Haeb-Umbach_2008, title={Speech enhancement
with a new generalized eigenvector blocking matrix for application in a generalized
sidelobe canceller}, DOI={10.1109/ICASSP.2008.4517549},
booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2008)}, author={Warsitz, Ernst and Krueger, Alexander and Haeb-Umbach,
Reinhold}, year={2008}, pages={73–76} }'
chicago: Warsitz, Ernst, Alexander Krueger, and Reinhold Haeb-Umbach. “Speech Enhancement
with a New Generalized Eigenvector Blocking Matrix for Application in a Generalized
Sidelobe Canceller.” In IEEE International Conference on Acoustics, Speech
and Signal Processing (ICASSP 2008), 73–76, 2008. https://doi.org/10.1109/ICASSP.2008.4517549.
ieee: E. Warsitz, A. Krueger, and R. Haeb-Umbach, “Speech enhancement with a new
generalized eigenvector blocking matrix for application in a generalized sidelobe
canceller,” in IEEE International Conference on Acoustics, Speech and Signal
Processing (ICASSP 2008), 2008, pp. 73–76.
mla: Warsitz, Ernst, et al. “Speech Enhancement with a New Generalized Eigenvector
Blocking Matrix for Application in a Generalized Sidelobe Canceller.” IEEE
International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008),
2008, pp. 73–76, doi:10.1109/ICASSP.2008.4517549.
short: 'E. Warsitz, A. Krueger, R. Haeb-Umbach, in: IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2008), 2008, pp. 73–76.'
date_created: 2019-07-12T05:31:06Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/ICASSP.2008.4517549
keyword:
- adaptive interference canceller
- adaptive signal processing
- array signal processing
- beamforming method
- eigenvalues and eigenfunctions
- generalized eigenvector blocking matrix
- generalized sidelobe canceller
- interference suppression
- matrix algebra
- noise suppression
- speech enhancement
- transfer function estimation
- transfer functions
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/WaKrHa08.pdf
oa: '1'
page: 73-76
publication: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2008)
status: public
title: Speech enhancement with a new generalized eigenvector blocking matrix for application
in a generalized sidelobe canceller
type: conference
user_id: '44006'
year: '2008'
...
---
_id: '11939'
abstract:
- lang: eng
text: In this paper a switching linear dynamical model (SLDM) approach for speech
feature enhancement is improved by employing more accurate models for the dynamics
of speech and noise. The model of the clean speech feature trajectory is improved
by augmenting the state vector to capture information derived from the delta features.
Further a hidden noise state variable is introduced to obtain a more elaborated
model for the noise dynamics. Approximate Bayesian inference in the SLDM is carried
out by a bank of extended Kalman filters, whose outputs are combined according
to the a posteriori probability of the individual state models. Experimental results
on the AURORA2 database show improved recognition accuracy.
author:
- first_name: Stefan
full_name: Windmann, Stefan
last_name: Windmann
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Windmann S, Haeb-Umbach R. Modeling the dynamics of speech and noise for speech
feature enhancement in ASR. In: IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2008). ; 2008:4409-4412. doi:10.1109/ICASSP.2008.4518633'
apa: Windmann, S., & Haeb-Umbach, R. (2008). Modeling the dynamics of speech
and noise for speech feature enhancement in ASR. In IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2008) (pp. 4409–4412).
https://doi.org/10.1109/ICASSP.2008.4518633
bibtex: '@inproceedings{Windmann_Haeb-Umbach_2008, title={Modeling the dynamics
of speech and noise for speech feature enhancement in ASR}, DOI={10.1109/ICASSP.2008.4518633},
booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2008)}, author={Windmann, Stefan and Haeb-Umbach, Reinhold}, year={2008},
pages={4409–4412} }'
chicago: Windmann, Stefan, and Reinhold Haeb-Umbach. “Modeling the Dynamics of Speech
and Noise for Speech Feature Enhancement in ASR.” In IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2008), 4409–12, 2008. https://doi.org/10.1109/ICASSP.2008.4518633.
ieee: S. Windmann and R. Haeb-Umbach, “Modeling the dynamics of speech and noise
for speech feature enhancement in ASR,” in IEEE International Conference on
Acoustics, Speech and Signal Processing (ICASSP 2008), 2008, pp. 4409–4412.
mla: Windmann, Stefan, and Reinhold Haeb-Umbach. “Modeling the Dynamics of Speech
and Noise for Speech Feature Enhancement in ASR.” IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2008), 2008, pp. 4409–12,
doi:10.1109/ICASSP.2008.4518633.
short: 'S. Windmann, R. Haeb-Umbach, in: IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2008), 2008, pp. 4409–4412.'
date_created: 2019-07-12T05:31:11Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/ICASSP.2008.4518633
keyword:
- a posteriori probability
- AURORA2 database
- Bayesian inference
- Bayes methods
- channel bank filters
- extended Kalman filter banks
- hidden noise state variable
- Kalman filters
- noise dynamics
- speech enhancement
- speech feature enhancement
- speech feature trajectory
- switching linear dynamical model approach
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/WiHa08-1.pdf
oa: '1'
page: 4409-4412
publication: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2008)
status: public
title: Modeling the dynamics of speech and noise for speech feature enhancement in
ASR
type: conference
user_id: '44006'
year: '2008'
...
---
_id: '11940'
abstract:
- lang: eng
text: 'In this paper, the noise estimation for model-based speech feature enhancement
in automatic speech recognition (ASR) is investigated. Beside a stationary noise
prior, three linear state space models for the (cepstral) noise process are considered.
We have derived novel EM algorithms for the estimation of the noise model parameters:
A blockwise EM algorithm is applied on noise-only input data. It is supposed to
be used during the offline training mode of the recognizer. Further a sequential
online EM algorithm is employed to adapt the observation variance in recognition
mode which works as well under the asumption of a stationary noise prior and a
linear state model for the noise. Experiments on the AURORA4 database lead to
improved recognition results with the new state model compared to the assumption
of stationary noise.'
author:
- first_name: Stefan
full_name: Windmann, Stefan
last_name: Windmann
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: Windmann S, Haeb-Umbach R. A novel approach to noise estimation in model-based
speech feature enhancement. 2008 ITG Conference on Voice Communication (SprachKommunikation).
2008:1-4.
apa: Windmann, S., & Haeb-Umbach, R. (2008). A novel approach to noise estimation
in model-based speech feature enhancement. 2008 ITG Conference on Voice Communication
(SprachKommunikation), 1–4.
bibtex: '@article{Windmann_Haeb-Umbach_2008, title={A novel approach to noise estimation
in model-based speech feature enhancement}, journal={2008 ITG Conference on Voice
Communication (SprachKommunikation)}, author={Windmann, Stefan and Haeb-Umbach,
Reinhold}, year={2008}, pages={1–4} }'
chicago: Windmann, Stefan, and Reinhold Haeb-Umbach. “A Novel Approach to Noise
Estimation in Model-Based Speech Feature Enhancement.” 2008 ITG Conference
on Voice Communication (SprachKommunikation), 2008, 1–4.
ieee: S. Windmann and R. Haeb-Umbach, “A novel approach to noise estimation in model-based
speech feature enhancement,” 2008 ITG Conference on Voice Communication (SprachKommunikation),
pp. 1–4, 2008.
mla: Windmann, Stefan, and Reinhold Haeb-Umbach. “A Novel Approach to Noise Estimation
in Model-Based Speech Feature Enhancement.” 2008 ITG Conference on Voice Communication
(SprachKommunikation), 2008, pp. 1–4.
short: S. Windmann, R. Haeb-Umbach, 2008 ITG Conference on Voice Communication (SprachKommunikation)
(2008) 1–4.
date_created: 2019-07-12T05:31:12Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/WiHa08-2.pdf
oa: '1'
page: 1-4
publication: 2008 ITG Conference on Voice Communication (SprachKommunikation)
status: public
title: A novel approach to noise estimation in model-based speech feature enhancement
type: journal_article
user_id: '44006'
year: '2008'
...
---
_id: '11944'
abstract:
- lang: eng
text: In this paper, a novel segmental Hidden Markov Model (HMM) is proposed. The
model is based on a modified emission density where additional statistical dependencies
between subsequent frames of the speech signal are considered. In the following
we derive an effective search strategy for the modified statistical model. Further
an approach to parameter reduction is introduced. Experiments were carried out
on the AURORA2 database where consistent im
author:
- first_name: Stefan
full_name: Windmann, Stefan
last_name: Windmann
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
- first_name: Volker
full_name: Leutnant, Volker
last_name: Leutnant
citation:
ama: Windmann S, Haeb-Umbach R, Leutnant V. A segmental HMM based on a modified
emission probability. 2008 ITG Conference on Voice Communication (SprachKommunikation).
2008:1-4.
apa: Windmann, S., Haeb-Umbach, R., & Leutnant, V. (2008). A segmental HMM based
on a modified emission probability. 2008 ITG Conference on Voice Communication
(SprachKommunikation), 1–4.
bibtex: '@article{Windmann_Haeb-Umbach_Leutnant_2008, title={A segmental HMM based
on a modified emission probability}, journal={2008 ITG Conference on Voice Communication
(SprachKommunikation)}, author={Windmann, Stefan and Haeb-Umbach, Reinhold and
Leutnant, Volker}, year={2008}, pages={1–4} }'
chicago: Windmann, Stefan, Reinhold Haeb-Umbach, and Volker Leutnant. “A Segmental
HMM Based on a Modified Emission Probability.” 2008 ITG Conference on Voice
Communication (SprachKommunikation), 2008, 1–4.
ieee: S. Windmann, R. Haeb-Umbach, and V. Leutnant, “A segmental HMM based on a
modified emission probability,” 2008 ITG Conference on Voice Communication
(SprachKommunikation), pp. 1–4, 2008.
mla: Windmann, Stefan, et al. “A Segmental HMM Based on a Modified Emission Probability.”
2008 ITG Conference on Voice Communication (SprachKommunikation), 2008,
pp. 1–4.
short: S. Windmann, R. Haeb-Umbach, V. Leutnant, 2008 ITG Conference on Voice Communication
(SprachKommunikation) (2008) 1–4.
date_created: 2019-07-12T05:31:16Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2008/WiHaLe08.pdf
oa: '1'
page: 1-4
publication: 2008 ITG Conference on Voice Communication (SprachKommunikation)
status: public
title: A segmental HMM based on a modified emission probability
type: journal_article
user_id: '44006'
year: '2008'
...
---
_id: '32518'
abstract:
- lang: eng
text: "This study investigates age-related changes and dyadic-specific differences
in adult child–parent\r\nrelationships. Using an individuation framework, two
German samples of 224 and 105 participants\r\naged between 21 and 47 years were
administered the Network of Relationships Inventory, the\r\nEmotional Autonomy
Scale and the Authority Reciprocity Questionnaire. Factor analyses resulted\r\nin
a measurement model valid for adult children, their mothers and fathers. The model
includes\r\nconnectedness (with emotional and cognitive aspects) as well as individuality
(assessed as power\r\nsymmetry). Connectedness decreased with age. Symmetry in
father–child relationships increased over\r\ntime, while mother–child relationships
were perceived to be symmetrical by early adulthood.\r\nChild–mother relationships
were more connected than child–father relationships. Sons described\r\nthemselves
as more powerful than did daughters."
author:
- first_name: Heike M.
full_name: Buhl, Heike M.
id: '27152'
last_name: Buhl
citation:
ama: Buhl HM. Development of a model describing individuated adult child-parent
relationships. International Journal of Behavioral Development. 2008;32(5):381-389.
apa: Buhl, H. M. (2008). Development of a model describing individuated adult child-parent
relationships. International Journal of Behavioral Development, 32(5),
381–389.
bibtex: '@article{Buhl_2008, title={Development of a model describing individuated
adult child-parent relationships}, volume={32}, number={5}, journal={International
Journal of Behavioral Development}, author={Buhl, Heike M.}, year={2008}, pages={381–389}
}'
chicago: 'Buhl, Heike M. “Development of a Model Describing Individuated Adult Child-Parent
Relationships.” International Journal of Behavioral Development 32, no.
5 (2008): 381–89.'
ieee: H. M. Buhl, “Development of a model describing individuated adult child-parent
relationships,” International Journal of Behavioral Development, vol. 32,
no. 5, pp. 381–389, 2008.
mla: Buhl, Heike M. “Development of a Model Describing Individuated Adult Child-Parent
Relationships.” International Journal of Behavioral Development, vol. 32,
no. 5, 2008, pp. 381–89.
short: H.M. Buhl, International Journal of Behavioral Development 32 (2008) 381–389.
date_created: 2022-08-02T23:53:32Z
date_updated: 2022-08-29T04:42:04Z
department:
- _id: '427'
extern: '1'
intvolume: ' 32'
issue: '5'
keyword:
- adult child–parent relationships
- adulthood
- connectedness
- Germany
- individuation
- symmetry
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://journals.sagepub.com/doi/pdf/10.1177/0165025408093656
oa: '1'
page: 381 - 389
publication: International Journal of Behavioral Development
publication_status: published
status: public
title: Development of a model describing individuated adult child-parent relationships
type: journal_article
user_id: '42165'
volume: 32
year: '2008'
...