---
_id: '17522'
abstract:
- lang: eng
text: Employing a unique hand-collected sample of 956 credit risk securitization
transactions issued by 64 stock-listed European banks across the EU-13 plus Switzerland
over the period from 1997 to 2010, this paper empirically analyzes the impact
of securitization on the issuing banks’ effective tax rates. Our analysis reveals
that banks may reduce their tax expense through securitization via a direct and
indirect channel suggesting that tax avoidance may be a further motive for banks
to engage in the securitization business. These baseline findings remain robust
under various robustness checks, especially when implementing structural equation
models and controlling for a reverse causality between the banks’ tax burden and
their incentive to securitize. Finally, various sensitivity analyses provide further
important results and implications for tax policies, banking regulation and the
ongoing process of revitalizing the European securitization market.
article_type: original
author:
- first_name: André
full_name: Uhde, André
id: '36049'
last_name: Uhde
orcid: https://orcid.org/0000-0002-8058-8857
citation:
ama: Uhde A. Tax avoidance through securitization. The Quarterly Review of Economics
and Finance. Published online 2020. doi:10.1016/j.qref.2020.07.008
apa: Uhde, A. (2020). Tax avoidance through securitization. The Quarterly Review
of Economics and Finance. https://doi.org/10.1016/j.qref.2020.07.008
bibtex: '@article{Uhde_2020, title={Tax avoidance through securitization}, DOI={10.1016/j.qref.2020.07.008},
journal={The Quarterly Review of Economics and Finance}, author={Uhde, André},
year={2020} }'
chicago: Uhde, André. “Tax Avoidance through Securitization.” The Quarterly Review
of Economics and Finance, 2020. https://doi.org/10.1016/j.qref.2020.07.008.
ieee: 'A. Uhde, “Tax avoidance through securitization,” The Quarterly Review
of Economics and Finance, 2020, doi: 10.1016/j.qref.2020.07.008.'
mla: Uhde, André. “Tax Avoidance through Securitization.” The Quarterly Review
of Economics and Finance, 2020, doi:10.1016/j.qref.2020.07.008.
short: A. Uhde, The Quarterly Review of Economics and Finance (2020).
date_created: 2020-08-01T07:20:33Z
date_updated: 2024-04-17T13:35:56Z
department:
- _id: '19'
doi: 10.1016/j.qref.2020.07.008
jel:
- G21
- G28
- H25
- H71
keyword:
- Securitization
- Credit risk transfer
- Effective tax rates
- European banking
language:
- iso: eng
publication: The Quarterly Review of Economics and Finance
publication_identifier:
issn:
- 1062-9769
status: public
title: Tax avoidance through securitization
type: journal_article
user_id: '36049'
year: '2020'
...
---
_id: '17401'
abstract:
- lang: eng
text: Employing a unique hand-collected sample of 956 credit risk securitization
transactions issued by 64 stock-listed European banks across the EU-13 plus Switzerland
over the period from 1997 to 2010, this paper empirically analyzes the impact
of securitization on the issuing banks’ effective tax rates. Our analysis reveals
that banks may reduce their tax expense through securitization via a direct and
indirect channel suggesting that tax avoidance may be a further motive for banks
to engage in the securitization business. These baseline findings remain robust
under various robustness checks, especially when implementing structural equation
models and controlling for a reverse causality between the banks’ tax burden and
their incentive to securitize. Finally, various sensitivity analyses provide further
important results and implications for tax policies, banking regulation and the
ongoing process of revitalizing the European securitization market.
author:
- first_name: André
full_name: Uhde, André
id: '36049'
last_name: Uhde
orcid: https://orcid.org/0000-0002-8058-8857
citation:
ama: Uhde A. Tax avoidance through securitization. The Quarterly Review of Economics
and Finance. Published online 2020.
apa: Uhde, A. (2020). Tax avoidance through securitization. The Quarterly Review
of Economics and Finance.
bibtex: '@article{Uhde_2020, title={Tax avoidance through securitization}, journal={The
Quarterly Review of Economics and Finance}, author={Uhde, André}, year={2020}
}'
chicago: Uhde, André. “Tax Avoidance through Securitization.” The Quarterly Review
of Economics and Finance, 2020.
ieee: A. Uhde, “Tax avoidance through securitization,” The Quarterly Review of
Economics and Finance, 2020.
mla: Uhde, André. “Tax Avoidance through Securitization.” The Quarterly Review
of Economics and Finance, 2020.
short: A. Uhde, The Quarterly Review of Economics and Finance (2020).
date_created: 2020-07-20T06:29:36Z
date_updated: 2024-04-17T13:36:03Z
department:
- _id: '19'
jel:
- G21
- G28
- H25
- H71
keyword:
- Securitization
- credit risk transfer
- effective tax rates
- European banking
language:
- iso: eng
publication: The Quarterly Review of Economics and Finance
status: public
title: Tax avoidance through securitization
type: journal_article
user_id: '36049'
year: '2020'
...
---
_id: '30932'
article_number: '678'
author:
- first_name: Artjom
full_name: Herberg, Artjom
id: '94'
last_name: Herberg
- first_name: Xiaoqian
full_name: Yu, Xiaoqian
last_name: Yu
- first_name: Dirk
full_name: Kuckling, Dirk
id: '287'
last_name: Kuckling
citation:
ama: 'Herberg A, Yu X, Kuckling D. End Group Stability of Atom Transfer Radical
Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives for
Diblock Copolymer Synthesis. Polymers. 2019;11(4). doi:https://doi.org/10.3390/polym11040678'
apa: 'Herberg, A., Yu, X., & Kuckling, D. (2019). End Group Stability of Atom
Transfer Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide):
Perspectives for Diblock Copolymer Synthesis. Polymers, 11(4), Article
678. https://doi.org/10.3390/polym11040678'
bibtex: '@article{Herberg_Yu_Kuckling_2019, title={End Group Stability of Atom Transfer
Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives
for Diblock Copolymer Synthesis}, volume={11}, DOI={https://doi.org/10.3390/polym11040678},
number={4678}, journal={Polymers}, publisher={MDPI}, author={Herberg, Artjom and
Yu, Xiaoqian and Kuckling, Dirk}, year={2019} }'
chicago: 'Herberg, Artjom, Xiaoqian Yu, and Dirk Kuckling. “End Group Stability
of Atom Transfer Radical Polymerization (ATRP)-Synthesized Poly(N-Isopropylacrylamide):
Perspectives for Diblock Copolymer Synthesis.” Polymers 11, no. 4 (2019).
https://doi.org/10.3390/polym11040678.'
ieee: 'A. Herberg, X. Yu, and D. Kuckling, “End Group Stability of Atom Transfer
Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives
for Diblock Copolymer Synthesis,” Polymers, vol. 11, no. 4, Art. no. 678,
2019, doi: https://doi.org/10.3390/polym11040678.'
mla: 'Herberg, Artjom, et al. “End Group Stability of Atom Transfer Radical Polymerization
(ATRP)-Synthesized Poly(N-Isopropylacrylamide): Perspectives for Diblock Copolymer
Synthesis.” Polymers, vol. 11, no. 4, 678, MDPI, 2019, doi:https://doi.org/10.3390/polym11040678.'
short: A. Herberg, X. Yu, D. Kuckling, Polymers 11 (2019).
date_created: 2022-04-21T09:08:41Z
date_updated: 2022-04-21T09:09:00Z
department:
- _id: '311'
doi: https://doi.org/10.3390/polym11040678
intvolume: ' 11'
issue: '4'
keyword:
- controlled radical polymerization
- atom transfer radical polymerization
- end group determination
- N-isopropylacrylamide
- block copolymerization
- smart polymers
- temperature sensitive polymers
- lower critical solution temperature
- ESI-TOF mass spectrometry
- ion mobility separation
- size exclusion chromatography
language:
- iso: eng
publication: Polymers
publication_status: published
publisher: MDPI
status: public
title: 'End Group Stability of Atom Transfer Radical Polymerization (ATRP)-Synthesized
Poly(N-isopropylacrylamide): Perspectives for Diblock Copolymer Synthesis'
type: journal_article
user_id: '94'
volume: 11
year: '2019'
...
---
_id: '8159'
abstract:
- lang: eng
text: The Boolean constraint satisfaction problem 3-SAT is arguably the canonical
NP-complete problem. In contrast, 2-SAT can not only be decided in polynomial
time, but in fact in deterministic linear time. In 2006, Bravyi proposed a physically
motivated generalization of k-SAT to the quantum setting, defining the problem
"quantum k-SAT". He showed that quantum 2-SAT is also solvable in polynomial time
on a classical computer, in particular in deterministic time O(n^4), assuming
unit-cost arithmetic over a field extension of the rational numbers, where n is
number of variables. In this paper, we present an algorithm for quantum 2-SAT
which runs in linear time, i.e. deterministic time O(n+m) for n and m the number
of variables and clauses, respectively. Our approach exploits the transfer matrix
techniques of Laumann et al. [QIC, 2010] used in the study of phase transitions
for random quantum 2-SAT, and bears similarities with both the linear time 2-SAT
algorithms of Even, Itai, and Shamir (based on backtracking) [SICOMP, 1976] and
Aspvall, Plass, and Tarjan (based on strongly connected components) [IPL, 1979].
author:
- first_name: Niel
full_name: de Beaudrap, Niel
last_name: de Beaudrap
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
citation:
ama: 'de Beaudrap N, Gharibian S. A Linear Time Algorithm for Quantum 2-SAT. In:
Raz R, ed. Proceedings of the 31st Conference on Computational Complexity (CCC
2016). Vol 50. Leibniz International Proceedings in Informatics (LIPIcs).
Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik; 2016:27:1-17:21. doi:10.4230/LIPIcs.CCC.2016.27'
apa: de Beaudrap, N., & Gharibian, S. (2016). A Linear Time Algorithm for Quantum
2-SAT. In R. Raz (Ed.), Proceedings of the 31st Conference on Computational
Complexity (CCC 2016) (Vol. 50, p. 27:1-17:21). Schloss Dagstuhl - Leibniz-Zentrum
fuer Informatik. https://doi.org/10.4230/LIPIcs.CCC.2016.27
bibtex: '@inproceedings{de Beaudrap_Gharibian_2016, place={Dagstuhl, Germany}, series={Leibniz
International Proceedings in Informatics (LIPIcs)}, title={A Linear Time Algorithm
for Quantum 2-SAT}, volume={50}, DOI={10.4230/LIPIcs.CCC.2016.27},
booktitle={Proceedings of the 31st Conference on Computational Complexity (CCC
2016)}, publisher={Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik}, author={de
Beaudrap, Niel and Gharibian, Sevag}, editor={Raz, Ran}, year={2016}, pages={27:1–17:21},
collection={Leibniz International Proceedings in Informatics (LIPIcs)} }'
chicago: 'Beaudrap, Niel de, and Sevag Gharibian. “A Linear Time Algorithm for Quantum
2-SAT.” In Proceedings of the 31st Conference on Computational Complexity (CCC
2016), edited by Ran Raz, 50:27:1-17:21. Leibniz International Proceedings
in Informatics (LIPIcs). Dagstuhl, Germany: Schloss Dagstuhl - Leibniz-Zentrum
fuer Informatik, 2016. https://doi.org/10.4230/LIPIcs.CCC.2016.27.'
ieee: 'N. de Beaudrap and S. Gharibian, “A Linear Time Algorithm for Quantum 2-SAT,”
in Proceedings of the 31st Conference on Computational Complexity (CCC 2016),
Tokyo, Japan, 2016, vol. 50, p. 27:1–17:21, doi: 10.4230/LIPIcs.CCC.2016.27.'
mla: de Beaudrap, Niel, and Sevag Gharibian. “A Linear Time Algorithm for Quantum
2-SAT.” Proceedings of the 31st Conference on Computational Complexity (CCC
2016), edited by Ran Raz, vol. 50, Schloss Dagstuhl - Leibniz-Zentrum fuer
Informatik, 2016, p. 27:1-17:21, doi:10.4230/LIPIcs.CCC.2016.27.
short: 'N. de Beaudrap, S. Gharibian, in: R. Raz (Ed.), Proceedings of the 31st
Conference on Computational Complexity (CCC 2016), Schloss Dagstuhl - Leibniz-Zentrum
fuer Informatik, Dagstuhl, Germany, 2016, p. 27:1–17:21.'
conference:
location: Tokyo, Japan
name: 31st Conference on Computational Complexity (CCC 2016)
date_created: 2019-03-01T11:19:54Z
date_updated: 2023-02-28T11:01:53Z
department:
- _id: '623'
- _id: '7'
doi: 10.4230/LIPIcs.CCC.2016.27
editor:
- first_name: Ran
full_name: Raz, Ran
last_name: Raz
extern: '1'
external_id:
arxiv:
- '1508.07338'
intvolume: ' 50'
keyword:
- quantum 2-SAT
- transfer matrix
- strongly connected components
- limited backtracking
- local Hamiltonian
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://drops.dagstuhl.de/opus/volltexte/2016/5836/
oa: '1'
page: 27:1-17:21
place: Dagstuhl, Germany
publication: Proceedings of the 31st Conference on Computational Complexity (CCC 2016)
publication_identifier:
isbn:
- 978-3-95977-008-8
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik
series_title: Leibniz International Proceedings in Informatics (LIPIcs)
status: public
title: A Linear Time Algorithm for Quantum 2-SAT
type: conference
user_id: '71541'
volume: 50
year: '2016'
...
---
_id: '5146'
abstract:
- lang: eng
text: In this paper, we analyze a model in which two divisions negotiate over an
intrafirm transfer price for an intermediate product. Formally, we consider bargaining
problems under incomplete information, since the upstream division’s (seller's)
costs and downstream division's (buyer's) revenues are supposed to be private
information. Assuming two possible types for buyer and seller each, we first establish
that the bargaining problem is regular, regardless whether incentive and/or efficiency
constraints are imposed. This allows us to apply the generalized Nash bargaining
solution to determine transfer payments and transfer probabilities. Furthermore,
we derive general properties of this solution for the transfer pricing problem
and compare the model developed here with the existing literature for negotiated
transfer pricing under incomplete information. In particular, we focus on the
models presented in Wagenhofer (1994).
author:
- first_name: Sonja
full_name: Brangewitz, Sonja
last_name: Brangewitz
- first_name: Claus-Jochen
full_name: Haake, Claus-Jochen
id: '20801'
last_name: Haake
citation:
ama: Brangewitz S, Haake C-J. Cooperative Transfer Price Negotiations under Incomplete
Information. Vol 64. CIE Working Paper Series, Paderborn University; 2013.
apa: Brangewitz, S., & Haake, C.-J. (2013). Cooperative Transfer Price Negotiations
under Incomplete Information (Vol. 64). CIE Working Paper Series, Paderborn
University.
bibtex: '@book{Brangewitz_Haake_2013, series={Working Papers CIE}, title={Cooperative
Transfer Price Negotiations under Incomplete Information}, volume={64}, publisher={CIE
Working Paper Series, Paderborn University}, author={Brangewitz, Sonja and Haake,
Claus-Jochen}, year={2013}, collection={Working Papers CIE} }'
chicago: Brangewitz, Sonja, and Claus-Jochen Haake. Cooperative Transfer Price
Negotiations under Incomplete Information. Vol. 64. Working Papers CIE. CIE
Working Paper Series, Paderborn University, 2013.
ieee: S. Brangewitz and C.-J. Haake, Cooperative Transfer Price Negotiations
under Incomplete Information, vol. 64. CIE Working Paper Series, Paderborn
University, 2013.
mla: Brangewitz, Sonja, and Claus-Jochen Haake. Cooperative Transfer Price Negotiations
under Incomplete Information. Vol. 64, CIE Working Paper Series, Paderborn
University, 2013.
short: S. Brangewitz, C.-J. Haake, Cooperative Transfer Price Negotiations under
Incomplete Information, CIE Working Paper Series, Paderborn University, 2013.
date_created: 2018-10-31T09:20:15Z
date_updated: 2022-01-06T07:01:39Z
ddc:
- '040'
department:
- _id: '205'
- _id: '475'
file:
- access_level: closed
content_type: application/pdf
creator: stela
date_created: 2018-10-31T09:22:19Z
date_updated: 2018-10-31T09:22:19Z
file_id: '5148'
file_name: WP - Cooperative Transfer Price Negotiations under Incomplete Information.pdf
file_size: 430826
relation: main_file
success: 1
file_date_updated: 2018-10-31T09:22:19Z
has_accepted_license: '1'
intvolume: ' 64'
keyword:
- Transfer Pricing
- Negotiation
- Generalized Nash Bargaining Solution
- Incomplete Information
language:
- iso: eng
project:
- _id: '1'
name: SFB 901
- _id: '2'
name: SFB 901 - Project Area A
- _id: '7'
name: SFB 901 - Subproject A3
publisher: CIE Working Paper Series, Paderborn University
series_title: Working Papers CIE
status: public
title: Cooperative Transfer Price Negotiations under Incomplete Information
type: working_paper
user_id: '477'
volume: 64
year: '2013'
...
---
_id: '4379'
abstract:
- lang: eng
text: Uniform mesoporous Si double layers are formed on 4 inch p-type < 100> wafers
with an off orientation of 6º towards < 111> by means of electrochemical etching
in ethanoic-based HF electrolytes. These substrates are of interest for the epitaxial
growth of III–V compound semiconductor stacks on their top for the production
of multi-junction solar cells and very thin electronic devices. We demonstrate
transfer of porous layers after an annealing process in hydrogen atmosphere. Electron
Back-Scatter Diffraction analysis confirms that the substrate orientation is conserved
during the etching and annealing steps. Confocal μ-Raman spectroscopy analysis
shows a decrease in the Raman signal intensity after etching and a subsequent
increase after annealing while no shift is observed. By means of Atomic Force
Microscopy, analysis the surface appearance after the etching and annealing steps
can be visualized. The mean surface roughness varies during the process from 0.55
nm for the unprocessed wafers to 0.27 nm after etching and 0.78 nm after annealing.
The decrease of average roughness after etching is caused by an electropolishing
step prior to porous formation. Despite of slight increase of mean surface roughness
after annealing the samples are still appropriate for high quality epitaxial growth
and subsequent lift-off.
article_type: original
author:
- first_name: E.
full_name: Garralaga Rojas, E.
last_name: Garralaga Rojas
- first_name: B.
full_name: Terheiden, B.
last_name: Terheiden
- first_name: H.
full_name: Plagwitz, H.
last_name: Plagwitz
- first_name: J.
full_name: Hensen, J.
last_name: Hensen
- first_name: V.
full_name: Wiedemeier, V.
last_name: Wiedemeier
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: R.
full_name: Brendel, R.
last_name: Brendel
citation:
ama: Garralaga Rojas E, Terheiden B, Plagwitz H, et al. Lift-off of mesoporous layers
by electrochemical etching on Si (100) substrates with miscut of 6° off towards
(111). Thin Solid Films. 2011;520(1):606-609. doi:10.1016/j.tsf.2011.07.063
apa: Garralaga Rojas, E., Terheiden, B., Plagwitz, H., Hensen, J., Wiedemeier, V.,
Berth, G., … Brendel, R. (2011). Lift-off of mesoporous layers by electrochemical
etching on Si (100) substrates with miscut of 6° off towards (111). Thin Solid
Films, 520(1), 606–609. https://doi.org/10.1016/j.tsf.2011.07.063
bibtex: '@article{Garralaga Rojas_Terheiden_Plagwitz_Hensen_Wiedemeier_Berth_Zrenner_Brendel_2011,
title={Lift-off of mesoporous layers by electrochemical etching on Si (100) substrates
with miscut of 6° off towards (111)}, volume={520}, DOI={10.1016/j.tsf.2011.07.063},
number={1}, journal={Thin Solid Films}, publisher={Elsevier BV}, author={Garralaga
Rojas, E. and Terheiden, B. and Plagwitz, H. and Hensen, J. and Wiedemeier, V.
and Berth, Gerhard and Zrenner, Artur and Brendel, R.}, year={2011}, pages={606–609}
}'
chicago: 'Garralaga Rojas, E., B. Terheiden, H. Plagwitz, J. Hensen, V. Wiedemeier,
Gerhard Berth, Artur Zrenner, and R. Brendel. “Lift-off of Mesoporous Layers by
Electrochemical Etching on Si (100) Substrates with Miscut of 6° off towards (111).”
Thin Solid Films 520, no. 1 (2011): 606–9. https://doi.org/10.1016/j.tsf.2011.07.063.'
ieee: E. Garralaga Rojas et al., “Lift-off of mesoporous layers by electrochemical
etching on Si (100) substrates with miscut of 6° off towards (111),” Thin Solid
Films, vol. 520, no. 1, pp. 606–609, 2011.
mla: Garralaga Rojas, E., et al. “Lift-off of Mesoporous Layers by Electrochemical
Etching on Si (100) Substrates with Miscut of 6° off towards (111).” Thin Solid
Films, vol. 520, no. 1, Elsevier BV, 2011, pp. 606–09, doi:10.1016/j.tsf.2011.07.063.
short: E. Garralaga Rojas, B. Terheiden, H. Plagwitz, J. Hensen, V. Wiedemeier,
G. Berth, A. Zrenner, R. Brendel, Thin Solid Films 520 (2011) 606–609.
date_created: 2018-09-11T14:21:12Z
date_updated: 2022-01-06T07:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1016/j.tsf.2011.07.063
intvolume: ' 520'
issue: '1'
keyword:
- Porous Si
- Layer transfer
- Thin-film
- Photovoltaics
language:
- iso: eng
page: 606-609
publication: Thin Solid Films
publication_identifier:
issn:
- 0040-6090
publication_status: published
publisher: Elsevier BV
status: public
title: Lift-off of mesoporous layers by electrochemical etching on Si (100) substrates
with miscut of 6° off towards (111)
type: journal_article
user_id: '49428'
volume: 520
year: '2011'
...
---
_id: '11850'
abstract:
- lang: eng
text: In this paper, we present a novel blocking matrix and fixed beamformer design
for a generalized sidelobe canceler for speech enhancement in a reverberant enclosure.
They are based on a new method for estimating the acoustical transfer function
ratios in the presence of stationary noise. The estimation method relies on solving
a generalized eigenvalue problem in each frequency bin. An adaptive eigenvector
tracking utilizing the power iteration method is employed and shown to achieve
a high convergence speed. Simulation results demonstrate that the proposed beamformer
leads to better noise and interference reduction and reduced speech distortions
compared to other blocking matrix designs from the literature.
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. Speech Enhancement With a GSC-Like Structure
Employing Eigenvector-Based Transfer Function Ratios Estimation. IEEE Transactions
on Audio, Speech, and Language Processing. 2011;19(1):206-219. doi:10.1109/TASL.2010.2047324
apa: Krueger, A., Warsitz, E., & Haeb-Umbach, R. (2011). Speech Enhancement
With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios
Estimation. IEEE Transactions on Audio, Speech, and Language Processing,
19(1), 206–219. https://doi.org/10.1109/TASL.2010.2047324
bibtex: '@article{Krueger_Warsitz_Haeb-Umbach_2011, title={Speech Enhancement With
a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation},
volume={19}, DOI={10.1109/TASL.2010.2047324},
number={1}, journal={IEEE Transactions on Audio, Speech, and Language Processing},
author={Krueger, Alexander and Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2011},
pages={206–219} }'
chicago: 'Krueger, Alexander, Ernst Warsitz, and Reinhold Haeb-Umbach. “Speech Enhancement
With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios
Estimation.” IEEE Transactions on Audio, Speech, and Language Processing
19, no. 1 (2011): 206–19. https://doi.org/10.1109/TASL.2010.2047324.'
ieee: A. Krueger, E. Warsitz, and R. Haeb-Umbach, “Speech Enhancement With a GSC-Like
Structure Employing Eigenvector-Based Transfer Function Ratios Estimation,” IEEE
Transactions on Audio, Speech, and Language Processing, vol. 19, no. 1, pp.
206–219, 2011.
mla: Krueger, Alexander, et al. “Speech Enhancement With a GSC-Like Structure Employing
Eigenvector-Based Transfer Function Ratios Estimation.” IEEE Transactions on
Audio, Speech, and Language Processing, vol. 19, no. 1, 2011, pp. 206–19,
doi:10.1109/TASL.2010.2047324.
short: A. Krueger, E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech,
and Language Processing 19 (2011) 206–219.
date_created: 2019-07-12T05:29:28Z
date_updated: 2022-01-06T06:51:11Z
department:
- _id: '54'
doi: 10.1109/TASL.2010.2047324
intvolume: ' 19'
issue: '1'
keyword:
- acoustical transfer function ratio
- adaptive eigenvector tracking
- array signal processing
- beamformer design
- blocking matrix
- eigenvalues and eigenfunctions
- eigenvector-based transfer function ratios estimation
- generalized sidelobe canceler
- interference reduction
- iterative methods
- power iteration method
- reduced speech distortions
- reverberant enclosure
- reverberation
- speech enhancement
- stationary noise
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2011/KrWaHa11.pdf
oa: '1'
page: 206-219
publication: IEEE Transactions on Audio, Speech, and Language Processing
status: public
title: Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer
Function Ratios Estimation
type: journal_article
user_id: '44006'
volume: 19
year: '2011'
...
---
_id: '17233'
abstract:
- lang: eng
text: 'It has been proposed that the design of robots might benefit from interactions
that are similar to caregiver–child interactions, which is tailored to children’s
respective capacities to a high degree. However, so far little is known about
how people adapt their tutoring behaviour to robots and whether robots can evoke
input that is similar to child-directed interaction. The paper presents detailed
analyses of speakers’ linguistic and non-linguistic behaviour, such as action
demonstration, in two comparable situations: In one experiment, parents described
and explained to their nonverbal infants the use of certain everyday objects;
in the other experiment, participants tutored a simulated robot on the same objects.
The results, which show considerable differences between the two situations on
almost all measures, are discussed in the light of the computer-as-social-actor
paradigm and the register hypothesis.'
author:
- first_name: Kerstin
full_name: Fischer, Kerstin
last_name: Fischer
- first_name: Kilian
full_name: Foth, Kilian
last_name: Foth
- first_name: Katharina
full_name: Rohlfing, Katharina
id: '50352'
last_name: Rohlfing
- first_name: Britta
full_name: Wrede, Britta
last_name: Wrede
citation:
ama: 'Fischer K, Foth K, Rohlfing K, Wrede B. Mindful tutors: Linguistic choice
and action demonstration in speech to infants and a simulated robot. Interaction
Studies. 2011;12(1):134-161. doi:10.1075/is.12.1.06fis'
apa: 'Fischer, K., Foth, K., Rohlfing, K., & Wrede, B. (2011). Mindful tutors:
Linguistic choice and action demonstration in speech to infants and a simulated
robot. Interaction Studies, 12(1), 134–161. https://doi.org/10.1075/is.12.1.06fis'
bibtex: '@article{Fischer_Foth_Rohlfing_Wrede_2011, title={Mindful tutors: Linguistic
choice and action demonstration in speech to infants and a simulated robot}, volume={12},
DOI={10.1075/is.12.1.06fis},
number={1}, journal={Interaction Studies}, publisher={John Benjamins Publishing
Company}, author={Fischer, Kerstin and Foth, Kilian and Rohlfing, Katharina and
Wrede, Britta}, year={2011}, pages={134–161} }'
chicago: 'Fischer, Kerstin, Kilian Foth, Katharina Rohlfing, and Britta Wrede. “Mindful
Tutors: Linguistic Choice and Action Demonstration in Speech to Infants and a
Simulated Robot.” Interaction Studies 12, no. 1 (2011): 134–61. https://doi.org/10.1075/is.12.1.06fis.'
ieee: 'K. Fischer, K. Foth, K. Rohlfing, and B. Wrede, “Mindful tutors: Linguistic
choice and action demonstration in speech to infants and a simulated robot,” Interaction
Studies, vol. 12, no. 1, pp. 134–161, 2011, doi: 10.1075/is.12.1.06fis.'
mla: 'Fischer, Kerstin, et al. “Mindful Tutors: Linguistic Choice and Action Demonstration
in Speech to Infants and a Simulated Robot.” Interaction Studies, vol.
12, no. 1, John Benjamins Publishing Company, 2011, pp. 134–61, doi:10.1075/is.12.1.06fis.'
short: K. Fischer, K. Foth, K. Rohlfing, B. Wrede, Interaction Studies 12 (2011)
134–161.
date_created: 2020-06-24T13:01:57Z
date_updated: 2023-02-01T12:56:04Z
department:
- _id: '749'
doi: 10.1075/is.12.1.06fis
intvolume: ' 12'
issue: '1'
keyword:
- human–robot interaction (HRI)
- social communication
- register theory
- motionese
- robotese
- child-directed speech (CDS)
- motherese
- mindless transfer
- computers-as-social-actors
language:
- iso: eng
page: 134-161
publication: Interaction Studies
publication_identifier:
issn:
- 1572-0381
publisher: John Benjamins Publishing Company
status: public
title: 'Mindful tutors: Linguistic choice and action demonstration in speech to infants
and a simulated robot'
type: journal_article
user_id: '14931'
volume: 12
year: '2011'
...
---
_id: '9745'
abstract:
- lang: eng
text: In the modeling of piezoelectric Langevin transducers using usual transfer
matrix methods, some simplifications have been adopted. This leads to reduction
of the model quality. A mixed transfer matrix method is employed in the modeling
of Langevin transducers, where the pre-stressed bolt is modeled as a separate
four-pole element, which is connected to other elements in parallel. Based on
the mixed transfer matrix method, the four (six)-pole element description of the
piezoelectric Langevin transducer is built up and the total transfer matrix relation
is derived. The resonance frequencies of the transducer are calculated and then
measured using the impedance analyzer (HP4192). Experimental result shows that
the mixed transfer matrix method has better modeling quality than the usual transfer
matrix method for the vibration analysis of piezoelectric Langevin transducers.
author:
- first_name: Bo
full_name: Fu, Bo
last_name: Fu
- first_name: Chao
full_name: Li, Chao
last_name: Li
- first_name: Jianming
full_name: Zhang, Jianming
last_name: Zhang
- first_name: Zhenwei
full_name: Huang, Zhenwei
last_name: Huang
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
citation:
ama: Fu B, Li C, Zhang J, Huang Z, Hemsel T. Modeling of Piezoelectric Langevin
Transducers by Using Mixed Transfer Matrix Methods. Journal of Korean Physical
Society. 2010;57(4):929. doi:10.3938/jkps.57.929
apa: Fu, B., Li, C., Zhang, J., Huang, Z., & Hemsel, T. (2010). Modeling of
Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods. Journal
of Korean Physical Society, 57(4), 929. https://doi.org/10.3938/jkps.57.929
bibtex: '@article{Fu_Li_Zhang_Huang_Hemsel_2010, title={Modeling of Piezoelectric
Langevin Transducers by Using Mixed Transfer Matrix Methods}, volume={57}, DOI={10.3938/jkps.57.929}, number={4},
journal={Journal of Korean Physical Society}, author={Fu, Bo and Li, Chao and
Zhang, Jianming and Huang, Zhenwei and Hemsel, Tobias}, year={2010}, pages={929}
}'
chicago: 'Fu, Bo, Chao Li, Jianming Zhang, Zhenwei Huang, and Tobias Hemsel. “Modeling
of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix Methods.”
Journal of Korean Physical Society 57, no. 4 (2010): 929. https://doi.org/10.3938/jkps.57.929.'
ieee: B. Fu, C. Li, J. Zhang, Z. Huang, and T. Hemsel, “Modeling of Piezoelectric
Langevin Transducers by Using Mixed Transfer Matrix Methods,” Journal of Korean
Physical Society, vol. 57, no. 4, p. 929, 2010.
mla: Fu, Bo, et al. “Modeling of Piezoelectric Langevin Transducers by Using Mixed
Transfer Matrix Methods.” Journal of Korean Physical Society, vol. 57,
no. 4, 2010, p. 929, doi:10.3938/jkps.57.929.
short: B. Fu, C. Li, J. Zhang, Z. Huang, T. Hemsel, Journal of Korean Physical Society
57 (2010) 929.
date_created: 2019-05-13T09:40:42Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.3938/jkps.57.929
intvolume: ' 57'
issue: '4'
keyword:
- Piezoelectric langevin transducer
- Transfer matrix method
- Four (six)-pole element description
- Pre-stressed bolt
language:
- iso: eng
page: '929'
publication: Journal of Korean Physical Society
publication_identifier:
issn:
- 1948-5719
quality_controlled: '1'
status: public
title: Modeling of Piezoelectric Langevin Transducers by Using Mixed Transfer Matrix
Methods
type: journal_article
user_id: '55222'
volume: 57
year: '2010'
...
---
_id: '4404'
abstract:
- lang: eng
text: Using a unique dataset of 592 cash and synthetic securitizations issued by
54 banks from the EU-15 plus Switzerland over the period from 1997 to 2007 this
paper provides empirical evidence that credit risk securitization has a positive
impact on the increase of European banks’ systematic risk. Baseline results hold
when comparing estimated beta coefficients with a control group of similar non-securitizing
banks. Building several sub-samples we additionally find that (a) the increase
in systematic risk is more relevant for larger banks that repeatedly engage in
securitization, (b) securitization is more important for small and medium financial
institutions, (c) banks have a higher incentive to retain the larger part of credit
risk as a quality signal at the beginning of the securitization business in Europe,
and (d) the overall risk-shifting effect due to securitization is more distinct
when the pre-event systematic risk is low.
author:
- first_name: André
full_name: Uhde, André
id: '36049'
last_name: Uhde
orcid: https://orcid.org/0000-0002-8058-8857
- first_name: Tobias C.
full_name: Michalak, Tobias C.
last_name: Michalak
citation:
ama: 'Uhde A, Michalak TC. Securitization and systematic risk in European banking:
Empirical evidence. Journal of Banking & Finance. 2010;34(12):3061-3077.
doi:https://doi.org/10.1016/j.jbankfin.2010.07.012'
apa: 'Uhde, A., & Michalak, T. C. (2010). Securitization and systematic risk
in European banking: Empirical evidence. Journal of Banking & Finance,
34(12), 3061–3077. https://doi.org/10.1016/j.jbankfin.2010.07.012'
bibtex: '@article{Uhde_Michalak_2010, title={Securitization and systematic risk
in European banking: Empirical evidence}, volume={34}, DOI={https://doi.org/10.1016/j.jbankfin.2010.07.012},
number={12}, journal={Journal of Banking & Finance}, author={Uhde, André and
Michalak, Tobias C.}, year={2010}, pages={3061–3077} }'
chicago: 'Uhde, André, and Tobias C. Michalak. “Securitization and Systematic Risk
in European Banking: Empirical Evidence.” Journal of Banking & Finance
34, no. 12 (2010): 3061–77. https://doi.org/10.1016/j.jbankfin.2010.07.012.'
ieee: 'A. Uhde and T. C. Michalak, “Securitization and systematic risk in European
banking: Empirical evidence,” Journal of Banking & Finance, vol. 34,
no. 12, pp. 3061–3077, 2010, doi: https://doi.org/10.1016/j.jbankfin.2010.07.012.'
mla: 'Uhde, André, and Tobias C. Michalak. “Securitization and Systematic Risk in
European Banking: Empirical Evidence.” Journal of Banking & Finance,
vol. 34, no. 12, 2010, pp. 3061–77, doi:https://doi.org/10.1016/j.jbankfin.2010.07.012.'
short: A. Uhde, T.C. Michalak, Journal of Banking & Finance 34 (2010) 3061–3077.
date_created: 2018-09-14T12:48:35Z
date_updated: 2023-01-10T09:35:58Z
department:
- _id: '186'
- _id: '188'
doi: https://doi.org/10.1016/j.jbankfin.2010.07.012
extern: '1'
intvolume: ' 34'
issue: '12'
jel:
- G14
- G21
- G28
- G32
keyword:
- Credit risk transfer
- Securitization
- Systematic risk
- Event study
language:
- iso: eng
page: 3061-3077
publication: Journal of Banking & Finance
status: public
title: 'Securitization and systematic risk in European banking: Empirical evidence'
type: journal_article
user_id: '21810'
volume: 34
year: '2010'
...
---
_id: '37057'
abstract:
- lang: eng
text: Many heterogeneous embedded systems, for example industrial automation and
automotive applications, require hard-real time constraints to be exhaustively
verified - which is a challenging task for the verification engineer. To cope
with complexity, verification techniques working on different abstraction levels
are best practice. SystemC is a versatile C++ based design and verification language,
offering various mechanisms and constructs required for embedded systems modeling.
Using the add-on SystemC Verification Library (SCV) elemental constrained-random
stimuli techniques may be used for verification. However, SCV has several drawbacks
such as lack of functional coverage. In this paper we present a functional coverage
library that implements parts of the IEEE 1800-2005 SystemVerilog standard and
allows capturing functional coverage throughout the design and verification process
with SystemC. Moreover, we will demonstrate the usability of the approach with
a case study working on a CAN bus model written in SystemC.
author:
- first_name: Gilles B.
full_name: Defo, Gilles B.
last_name: Defo
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: Christoph
full_name: Kuznik, Christoph
last_name: Kuznik
citation:
ama: 'Defo GB, Müller W, Kuznik C. Verification of a CAN Bus Model in SystemC with
Functional Coverage. In: Proceedings of SIES 2010. IEEE; 2010. doi:10.1109/SIES.2010.5551379'
apa: Defo, G. B., Müller, W., & Kuznik, C. (2010). Verification of a CAN Bus
Model in SystemC with Functional Coverage. Proceedings of SIES 2010. International
Symposium on Industrial Embedded System (SIES), Trento, Italy. https://doi.org/10.1109/SIES.2010.5551379
bibtex: '@inproceedings{Defo_Müller_Kuznik_2010, place={ Trento, Italy}, title={Verification
of a CAN Bus Model in SystemC with Functional Coverage}, DOI={10.1109/SIES.2010.5551379},
booktitle={Proceedings of SIES 2010}, publisher={IEEE}, author={Defo, Gilles B.
and Müller, Wolfgang and Kuznik, Christoph}, year={2010} }'
chicago: 'Defo, Gilles B., Wolfgang Müller, and Christoph Kuznik. “Verification
of a CAN Bus Model in SystemC with Functional Coverage.” In Proceedings of
SIES 2010. Trento, Italy: IEEE, 2010. https://doi.org/10.1109/SIES.2010.5551379.'
ieee: 'G. B. Defo, W. Müller, and C. Kuznik, “Verification of a CAN Bus Model in
SystemC with Functional Coverage,” presented at the International Symposium on
Industrial Embedded System (SIES), Trento, Italy, 2010, doi: 10.1109/SIES.2010.5551379.'
mla: Defo, Gilles B., et al. “Verification of a CAN Bus Model in SystemC with Functional
Coverage.” Proceedings of SIES 2010, IEEE, 2010, doi:10.1109/SIES.2010.5551379.
short: 'G.B. Defo, W. Müller, C. Kuznik, in: Proceedings of SIES 2010, IEEE, Trento,
Italy, 2010.'
conference:
location: ' Trento, Italy'
name: International Symposium on Industrial Embedded System (SIES)
date_created: 2023-01-17T11:34:56Z
date_updated: 2023-01-17T11:35:03Z
department:
- _id: '672'
doi: 10.1109/SIES.2010.5551379
keyword:
- Libraries
- Generators
- Transfer functions
- Monitoring
- Computational modeling
- Driver circuits
- Adaptation model
language:
- iso: eng
place: ' Trento, Italy'
publication: Proceedings of SIES 2010
publication_identifier:
eisbn:
- 978-1-4244-5841-7
publisher: IEEE
status: public
title: Verification of a CAN Bus Model in SystemC with Functional Coverage
type: conference
user_id: '5786'
year: '2010'
...
---
_id: '9576'
abstract:
- lang: eng
text: 'In neurosurgery, delineation of tumor boundaries during resection of brain
tumors is of substantial relevance. During operation distinction between tumor
and healthy tissue rely on the abilities of the surgeon based on visual and tactile
differentiation. In this paper a high sensitivity actuator-sensor system using
a piezoelectric bimorph is presented. Frequency shift and transfer function of
the bimorphpsilas voltages are detected and evaluated. Sensorpsilas sensitivity
is evaluated using two frequency controls strategies: A phase-locked loop (PLL)
and a self-oscillating circuit. Results of measurements conducted on gel-phantoms
are presented and discussed.'
author:
- first_name: David Oliva
full_name: Uribe, David Oliva
last_name: Uribe
- first_name: Ralf
full_name: Stroop, Ralf
last_name: Stroop
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Jörg
full_name: Wallaschek, Jörg
last_name: Wallaschek
citation:
ama: 'Uribe DO, Stroop R, Hemsel T, Wallaschek J. Development of a biomedical tissue
differentiation system using piezoelectric actuators. In: Frequency Control
Symposium, 2008 IEEE International. ; 2008:91-94. doi:10.1109/FREQ.2008.4622963'
apa: Uribe, D. O., Stroop, R., Hemsel, T., & Wallaschek, J. (2008). Development
of a biomedical tissue differentiation system using piezoelectric actuators. In
Frequency Control Symposium, 2008 IEEE International (pp. 91–94). https://doi.org/10.1109/FREQ.2008.4622963
bibtex: '@inproceedings{Uribe_Stroop_Hemsel_Wallaschek_2008, title={Development
of a biomedical tissue differentiation system using piezoelectric actuators},
DOI={10.1109/FREQ.2008.4622963},
booktitle={Frequency Control Symposium, 2008 IEEE International}, author={Uribe,
David Oliva and Stroop, Ralf and Hemsel, Tobias and Wallaschek, Jörg}, year={2008},
pages={91–94} }'
chicago: Uribe, David Oliva, Ralf Stroop, Tobias Hemsel, and Jörg Wallaschek. “Development
of a Biomedical Tissue Differentiation System Using Piezoelectric Actuators.”
In Frequency Control Symposium, 2008 IEEE International, 91–94, 2008. https://doi.org/10.1109/FREQ.2008.4622963.
ieee: D. O. Uribe, R. Stroop, T. Hemsel, and J. Wallaschek, “Development of a biomedical
tissue differentiation system using piezoelectric actuators,” in Frequency
Control Symposium, 2008 IEEE International, 2008, pp. 91–94.
mla: Uribe, David Oliva, et al. “Development of a Biomedical Tissue Differentiation
System Using Piezoelectric Actuators.” Frequency Control Symposium, 2008 IEEE
International, 2008, pp. 91–94, doi:10.1109/FREQ.2008.4622963.
short: 'D.O. Uribe, R. Stroop, T. Hemsel, J. Wallaschek, in: Frequency Control Symposium,
2008 IEEE International, 2008, pp. 91–94.'
date_created: 2019-04-29T13:07:39Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1109/FREQ.2008.4622963
keyword:
- biomedical measurement
- brain
- cancer
- neurophysiology
- phantoms
- phase locked loops
- piezoelectric actuators
- surgery
- tactile sensors
- transfer functions
- tumours
- PLL
- biomedical tissue differentiation system
- brain tumor resection
- frequency control
- frequency shift
- gel-phantom
- high sensitivity actuator-sensor system
- neurosurgery
- phase-locked loop
- piezoelectric actuators
- piezoelectric bimorph
- self-oscillating circuit
- sensor sensitivity
- tactile differentiation
- tactile sensor system
- transfer function
- tumor boundary
- visual differentiation
- Biomedical measurements
- Circuits
- Frequency control
- Neoplasms
- Neurosurgery
- Phase locked loops
- Piezoelectric actuators
- Surges
- Transfer functions
- Voltage
language:
- iso: eng
page: 91-94
publication: Frequency Control Symposium, 2008 IEEE International
publication_identifier:
issn:
- 1075-6787
quality_controlled: '1'
status: public
title: Development of a biomedical tissue differentiation system using piezoelectric
actuators
type: conference
user_id: '55222'
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: '11927'
abstract:
- lang: eng
text: Maximizing the output signal-to-noise ratio (SNR) of a sensor array in the
presence of spatially colored noise leads to a generalized eigenvalue problem.
While this approach has extensively been employed in narrowband (antenna) array
beamforming, it is typically not used for broadband (microphone) array beamforming
due to the uncontrolled amount of speech distortion introduced by a narrowband
SNR criterion. In this paper, we show how the distortion of the desired signal
can be controlled by a single-channel post-filter, resulting in a performance
comparable to the generalized minimum variance distortionless response beamformer,
where arbitrary transfer functions relate the source and the microphones. Results
are given both for directional and diffuse noise. A novel gradient ascent adaptation
algorithm is presented, and its good convergence properties are experimentally
revealed by comparison with alternatives from the literature. A key feature of
the proposed beamformer is that it operates blindly, i.e., it neither requires
knowledge about the array geometry nor an explicit estimation of the transfer
functions from source to sensors or the direction-of-arrival.
author:
- 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: Warsitz E, Haeb-Umbach R. Blind Acoustic Beamforming Based on Generalized Eigenvalue
Decomposition. IEEE Transactions on Audio, Speech, and Language Processing.
2007;15(5):1529-1539. doi:10.1109/TASL.2007.898454
apa: Warsitz, E., & Haeb-Umbach, R. (2007). Blind Acoustic Beamforming Based
on Generalized Eigenvalue Decomposition. IEEE Transactions on Audio, Speech,
and Language Processing, 15(5), 1529–1539. https://doi.org/10.1109/TASL.2007.898454
bibtex: '@article{Warsitz_Haeb-Umbach_2007, title={Blind Acoustic Beamforming Based
on Generalized Eigenvalue Decomposition}, volume={15}, DOI={10.1109/TASL.2007.898454},
number={5}, journal={IEEE Transactions on Audio, Speech, and Language Processing},
author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2007}, pages={1529–1539}
}'
chicago: 'Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming
Based on Generalized Eigenvalue Decomposition.” IEEE Transactions on Audio,
Speech, and Language Processing 15, no. 5 (2007): 1529–39. https://doi.org/10.1109/TASL.2007.898454.'
ieee: E. Warsitz and R. Haeb-Umbach, “Blind Acoustic Beamforming Based on Generalized
Eigenvalue Decomposition,” IEEE Transactions on Audio, Speech, and Language
Processing, vol. 15, no. 5, pp. 1529–1539, 2007.
mla: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based
on Generalized Eigenvalue Decomposition.” IEEE Transactions on Audio, Speech,
and Language Processing, vol. 15, no. 5, 2007, pp. 1529–39, doi:10.1109/TASL.2007.898454.
short: E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language
Processing 15 (2007) 1529–1539.
date_created: 2019-07-12T05:30:57Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/TASL.2007.898454
intvolume: ' 15'
issue: '5'
keyword:
- acoustic signal processing
- arbitrary transfer function
- array signal processing
- blind acoustic beamforming
- direction-of-arrival
- direction-of-arrival estimation
- eigenvalues and eigenfunctions
- generalized eigenvalue decomposition
- gradient ascent adaptation algorithm
- microphone arrays
- microphones
- narrowband array beamforming
- sensor array
- single-channel post-filter
- spatially colored noise
- transfer functions
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2007/WaHa07.pdf
oa: '1'
page: 1529-1539
publication: IEEE Transactions on Audio, Speech, and Language Processing
status: public
title: Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition
type: journal_article
user_id: '44006'
volume: 15
year: '2007'
...
---
_id: '5662'
abstract:
- lang: eng
text: Spam als unerwünschte Massen-E-Mail hat die Grenze von der Belästigung zur
ökonomischen Relevanz längst überschritten. Ihr relativer Anteil am gesamten,
weltweiten E-Mail-Aufkommen stieg in den vergangenen Jahren auf mehr als 50% im
Jahr 2003. Es entstehen jährlich volkswirtschaftliche Schäden in Milliardenhöhe.
Zur Bekämpfung des Spam-Problems werden neben gesetzlichen Regelungen vor allem
technische Lösungen eingesetzt, bei denen das Blockieren und Filtern von E-Mails
in praktisch eingesetzten Anti-Spam-Systemen dominieren. Dieser Artikel führt
in die Spam-Problematik ein und beschreibt, bewertet und klassifiziert die derzeit
bedeutendsten Verfahren zur Bekämpfung von Spam.
author:
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: Schryen G. Effektivität von Lösungsansätzen zur Bekämpfung von Spam. Wirtschaftsinformatik.
2004;46(4):281-288.
apa: Schryen, G. (2004). Effektivität von Lösungsansätzen zur Bekämpfung von Spam.
Wirtschaftsinformatik, 46(4), 281–288.
bibtex: '@article{Schryen_2004, title={Effektivität von Lösungsansätzen zur Bekämpfung
von Spam}, volume={46}, number={4}, journal={Wirtschaftsinformatik}, publisher={Springer},
author={Schryen, Guido}, year={2004}, pages={281–288} }'
chicago: 'Schryen, Guido. “Effektivität von Lösungsansätzen Zur Bekämpfung von Spam.”
Wirtschaftsinformatik 46, no. 4 (2004): 281–88.'
ieee: G. Schryen, “Effektivität von Lösungsansätzen zur Bekämpfung von Spam,” Wirtschaftsinformatik,
vol. 46, no. 4, pp. 281–288, 2004.
mla: Schryen, Guido. “Effektivität von Lösungsansätzen Zur Bekämpfung von Spam.”
Wirtschaftsinformatik, vol. 46, no. 4, Springer, 2004, pp. 281–88.
short: G. Schryen, Wirtschaftsinformatik 46 (2004) 281–288.
date_created: 2018-11-14T14:56:51Z
date_updated: 2022-01-06T07:02:24Z
ddc:
- '000'
department:
- _id: '277'
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2018-12-18T13:36:34Z
date_updated: 2018-12-18T13:36:34Z
file_id: '6338'
file_name: Verlagsversion Guido_Schryen__281__288.pdf
file_size: 288686
relation: main_file
file_date_updated: 2018-12-18T13:36:34Z
has_accepted_license: '1'
intvolume: ' 46'
issue: '4'
keyword:
- Spam
- E-Mail
- Spoofing
- Blockieren
- Filtern
- Lightweight Mail Transfer Agent Authentication Protocol (LMAP)
language:
- iso: eng
oa: '1'
page: 281-288
publication: Wirtschaftsinformatik
publisher: Springer
status: public
title: Effektivität von Lösungsansätzen zur Bekämpfung von Spam
type: journal_article
user_id: '61579'
volume: 46
year: '2004'
...