---
_id: '9808'
abstract:
- lang: eng
text: This study presents the methods employed by a team from the department of
Mechatronics and Dynamics at the University of Paderborn, Germany for the 2013
PHM data challenge. The focus of the challenge was on maintenance action recommendation
for an industrial machinery based on remote monitoring and diagnosis. Since an
ensemble of data driven methods has been considered as the state of the art approach
in diagnosis and prognosis, the first approach was to evaluate the performance
of an ensemble of data driven methods using the parametric data as input and problems
(recommended maintenance action) as the output. Due to close correlation of parametric
data of different problems, this approach produced high misclassification rate.
Event-based decision trees were then constructed to identify problems associated
with particular events. To distinguish between problems associated with events
that appeared in multiple problems, support vector machine (SVM) with parameters
optimally tuned using particle swarm optimization (PSO) was employed. Parametric
data was used as the input to the SVM algorithm and majority voting was employed
to determine the final decision for cases with multiple events. A total of 165
SVM models were constructed. This approach improved the overall score from 21
to 48. The method was further enhanced by employing an ensemble of three data
driven methods, that is, SVM, random forests (RF) and bagged trees (BT), to build
the event based models. With this approach, a score of 51 was obtained . The results
demonstrate that the proposed event based method can be effective in maintenance
action recommendation based on events codes and parametric data acquired remotely
from an industrial equipment.
author:
- first_name: James Kuria
full_name: Kimotho, James Kuria
last_name: Kimotho
- first_name: Chritoph
full_name: Sondermann-Wölke, Chritoph
last_name: Sondermann-Wölke
- first_name: Tobias
full_name: Meyer, Tobias
last_name: Meyer
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Kimotho JK, Sondermann-Wölke C, Meyer T, Sextro W. Application of Event Based
Decision Tree and Ensemble of Data Driven Methods for Maintenance Action Recommendation.
International Journal of Prognostics and Health Management. 2013;4(2).
apa: Kimotho, J. K., Sondermann-Wölke, C., Meyer, T., & Sextro, W. (2013). Application
of Event Based Decision Tree and Ensemble of Data Driven Methods for Maintenance
Action Recommendation. International Journal of Prognostics and Health Management,
4(2).
bibtex: '@article{Kimotho_Sondermann-Wölke_Meyer_Sextro_2013, title={Application
of Event Based Decision Tree and Ensemble of Data Driven Methods for Maintenance
Action Recommendation}, volume={4}, number={2}, journal={International Journal
of Prognostics and Health Management}, author={Kimotho, James Kuria and Sondermann-Wölke,
Chritoph and Meyer, Tobias and Sextro, Walter}, year={2013} }'
chicago: Kimotho, James Kuria, Chritoph Sondermann-Wölke, Tobias Meyer, and Walter
Sextro. “Application of Event Based Decision Tree and Ensemble of Data Driven
Methods for Maintenance Action Recommendation.” International Journal of Prognostics
and Health Management 4, no. 2 (2013).
ieee: J. K. Kimotho, C. Sondermann-Wölke, T. Meyer, and W. Sextro, “Application
of Event Based Decision Tree and Ensemble of Data Driven Methods for Maintenance
Action Recommendation,” International Journal of Prognostics and Health Management,
vol. 4, no. 2, 2013.
mla: Kimotho, James Kuria, et al. “Application of Event Based Decision Tree and
Ensemble of Data Driven Methods for Maintenance Action Recommendation.” International
Journal of Prognostics and Health Management, vol. 4, no. 2, 2013.
short: J.K. Kimotho, C. Sondermann-Wölke, T. Meyer, W. Sextro, International Journal
of Prognostics and Health Management 4 (2013).
date_created: 2019-05-13T14:15:36Z
date_updated: 2022-01-06T07:04:21Z
department:
- _id: '151'
intvolume: ' 4'
issue: '2'
keyword:
- maintenance decision
- Bagged trees
- Decision trees
- PSO-SVM
- Random forests
language:
- iso: eng
publication: International Journal of Prognostics and Health Management
quality_controlled: '1'
status: public
title: Application of Event Based Decision Tree and Ensemble of Data Driven Methods
for Maintenance Action Recommendation
type: journal_article
user_id: '55222'
volume: 4
year: '2013'
...
---
_id: '9858'
abstract:
- lang: eng
text: In this contribution, we introduce a multiobjective optimization used to calculate
safe optimal working points for a mechatronic system by including stochastic safety-critical
signals in an objective function. Our application example consists of a linear
drive for a rail-bound vehicle and an actuation unit. The linear drive's secondary
part is fixed; the primary part is vehicle-mounted and can be adjusted vertically
to account for deviations of the height of the secondary part. A small air gap
between both parts improves efficiency, but increases the risk of a collision
between the two parts. Using height data of the secondary part, a trajectory for
the vertical adjustment of the primary part is calculated. However, unexpected
deviations necessitate a readjustment of the air gap. The probability of such
unexpected height deviations can be calculated from the readjustment data. The
system is equipped with sensors to measure the air gap. Assuming that the sensor
noise is normally distributed, noise characteristics are determined. Using this
information and the probability distribution of unexpected height deviations,
the probability of a collision is determined.T he sensor noise and the probability
of a collision between both parts of the linear drive are included in the dynamical
model of the system. Using multiobjective optimization, pareto-optimal working
points for the controller of the air gap are obtained. By selecting an appropriate
working point, safe operation can be ensured.
author:
- first_name: Tobias
full_name: Meyer, Tobias
last_name: Meyer
- first_name: Christina
full_name: Hölscher, Christina
last_name: Hölscher
- first_name: Michael
full_name: Menke, Michael
last_name: Menke
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Detmar
full_name: Zimmer, Detmar
last_name: Zimmer
citation:
ama: 'Meyer T, Hölscher C, Menke M, Sextro W, Zimmer D. Multiobjective Optimization
including Safety of Operation Applied to a Linear Drive System. In: Proc. Appl.
Math. Mech. Vol 13. ; 2013:483-484. doi:10.1002/pamm.201310234'
apa: Meyer, T., Hölscher, C., Menke, M., Sextro, W., & Zimmer, D. (2013). Multiobjective
Optimization including Safety of Operation Applied to a Linear Drive System. In
Proc. Appl. Math. Mech. (Vol. 13, pp. 483–484). https://doi.org/10.1002/pamm.201310234
bibtex: '@inproceedings{Meyer_Hölscher_Menke_Sextro_Zimmer_2013, title={Multiobjective
Optimization including Safety of Operation Applied to a Linear Drive System},
volume={13}, DOI={10.1002/pamm.201310234},
booktitle={Proc. Appl. Math. Mech.}, author={Meyer, Tobias and Hölscher, Christina
and Menke, Michael and Sextro, Walter and Zimmer, Detmar}, year={2013}, pages={483–484}
}'
chicago: Meyer, Tobias, Christina Hölscher, Michael Menke, Walter Sextro, and Detmar
Zimmer. “Multiobjective Optimization Including Safety of Operation Applied to
a Linear Drive System.” In Proc. Appl. Math. Mech., 13:483–84, 2013. https://doi.org/10.1002/pamm.201310234.
ieee: T. Meyer, C. Hölscher, M. Menke, W. Sextro, and D. Zimmer, “Multiobjective
Optimization including Safety of Operation Applied to a Linear Drive System,”
in Proc. Appl. Math. Mech., 2013, vol. 13, pp. 483–484.
mla: Meyer, Tobias, et al. “Multiobjective Optimization Including Safety of Operation
Applied to a Linear Drive System.” Proc. Appl. Math. Mech., vol. 13, 2013,
pp. 483–84, doi:10.1002/pamm.201310234.
short: 'T. Meyer, C. Hölscher, M. Menke, W. Sextro, D. Zimmer, in: Proc. Appl. Math.
Mech., 2013, pp. 483–484.'
date_created: 2019-05-20T11:10:20Z
date_updated: 2019-05-20T11:12:54Z
department:
- _id: '151'
doi: 10.1002/pamm.201310234
intvolume: ' 13'
language:
- iso: eng
page: 483-484
publication: Proc. Appl. Math. Mech.
status: public
title: Multiobjective Optimization including Safety of Operation Applied to a Linear
Drive System
type: conference
user_id: '55222'
volume: 13
year: '2013'
...
---
_id: '9859'
abstract:
- lang: eng
text: Self-optimizing mechatronic systems allow the adaptation of the system's behavior
to the current situation. This can be used to actively adapt the behavior to the
current degradation state of the system or of some of its components. To this
end, the Multi-Level Dependability Concept has been developed. In this contribution,
we show how the Multi-Level Dependability Concept has been applied to the active
suspension module of an innovative rail-bound vehicle. For this module, the usage
of control reconfiguration, which is a novel approach to exploit complex redundancy
systems, is required. We show that by combining self-optimization with the possibilities
given by control reconfiguration, the dependability of a complex mechatronic system
can be greatly improved.
author:
- first_name: Tobias
full_name: Meyer , Tobias
last_name: 'Meyer '
- first_name: Jan
full_name: Henning Keßler, Jan
last_name: Henning Keßler
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Ansgar
full_name: Trächtler, Ansgar
last_name: Trächtler
citation:
ama: 'Meyer T, Henning Keßler J, Sextro W, Trächtler A. Increasing Intelligent
Systems’ Reliability by Using Reconfiguration. In: Proceedings of the Annual
Reliability and Maintainability Symposium (RAMS). Orlando, FL; 2013. doi:10.1109/RAMS.2013.6517636'
apa: Meyer , T., Henning Keßler, J., Sextro, W., & Trächtler, A. (2013). Increasing
Intelligent Systems’ Reliability by Using Reconfiguration. In Proceedings of
the Annual Reliability and Maintainability Symposium (RAMS). Orlando, FL.
https://doi.org/10.1109/RAMS.2013.6517636
bibtex: '@inproceedings{Meyer _Henning Keßler_Sextro_Trächtler_2013, place={Orlando,
FL}, title={Increasing Intelligent Systems’ Reliability by Using Reconfiguration},
DOI={10.1109/RAMS.2013.6517636},
booktitle={Proceedings of the Annual Reliability and Maintainability Symposium
(RAMS)}, author={Meyer , Tobias and Henning Keßler, Jan and Sextro, Walter and
Trächtler, Ansgar}, year={2013} }'
chicago: Meyer , Tobias, Jan Henning Keßler, Walter Sextro, and Ansgar Trächtler.
“Increasing Intelligent Systems’ Reliability by Using Reconfiguration.” In Proceedings
of the Annual Reliability and Maintainability Symposium (RAMS). Orlando, FL,
2013. https://doi.org/10.1109/RAMS.2013.6517636.
ieee: T. Meyer , J. Henning Keßler, W. Sextro, and A. Trächtler, “Increasing Intelligent
Systems’ Reliability by Using Reconfiguration,” in Proceedings of the Annual
Reliability and Maintainability Symposium (RAMS), 2013.
mla: Meyer , Tobias, et al. “Increasing Intelligent Systems’ Reliability by Using
Reconfiguration.” Proceedings of the Annual Reliability and Maintainability
Symposium (RAMS), 2013, doi:10.1109/RAMS.2013.6517636.
short: 'T. Meyer , J. Henning Keßler, W. Sextro, A. Trächtler, in: Proceedings of
the Annual Reliability and Maintainability Symposium (RAMS), Orlando, FL, 2013.'
date_created: 2019-05-20T11:13:14Z
date_updated: 2019-09-16T11:22:45Z
department:
- _id: '151'
doi: 10.1109/RAMS.2013.6517636
language:
- iso: eng
place: Orlando, FL
publication: Proceedings of the Annual Reliability and Maintainability Symposium (RAMS)
quality_controlled: '1'
status: public
title: Increasing Intelligent Systems' Reliability by Using Reconfiguration
type: conference
user_id: '55222'
year: '2013'
...
---
_id: '9860'
abstract:
- lang: eng
text: Self-optimizing mechatronic systems offer possibilities well beyond those
of traditional mechatronic systems. Among these is the adaptation of the system
behavior to the current situation. To do so, they are able to choose from different
working points, which are pre-calculated using multiobjective optimization and
are thus Pareto-optimal with regard to the chosen objective functions. In this
contribution, a method is presented that allows to continuously control the system
degradation by adapting the behavior of a selfoptimizing system throughout its
complete lifetime. The current remaining useful lifetime is estimated and then
related to the spent lifetime and the desired useful lifetime. Using this information,
a reliability-related objective is prioritized using a closed-loop control, which
in turn is used to determine the working point of the self-optimizing system.
This way, the desired useful lifetime can be achieved. To exemplify the setup
of the controller structure and to demonstrate the adaptation of the system behavior,
a dynamic model of a clutch system is used. It can be seen that the closed loop
controller is able to correct for external perturbations, such as changed requirements,
as well as changed system parameters. This way, the modeled system is able to
achieve the desired lifetime reliably.
author:
- first_name: Tobias
full_name: Meyer, Tobias
last_name: Meyer
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: James Kuria
full_name: Kimotho, James Kuria
last_name: Kimotho
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Meyer T, Sondermann-Wölke C, Kimotho JK, Sextro W. Controlling the Remaining
Useful Lifetime using Self-Optimization. Chemical Engineering Transactions.
2013;33:625-630. doi:10.3303/CET1333105
apa: Meyer, T., Sondermann-Wölke, C., Kimotho, J. K., & Sextro, W. (2013). Controlling
the Remaining Useful Lifetime using Self-Optimization. Chemical Engineering
Transactions, 33, 625–630. https://doi.org/10.3303/CET1333105
bibtex: '@article{Meyer_Sondermann-Wölke_Kimotho_Sextro_2013, title={Controlling
the Remaining Useful Lifetime using Self-Optimization}, volume={33}, DOI={10.3303/CET1333105},
journal={Chemical Engineering Transactions}, author={Meyer, Tobias and Sondermann-Wölke,
Christoph and Kimotho, James Kuria and Sextro, Walter}, year={2013}, pages={625–630}
}'
chicago: 'Meyer, Tobias, Christoph Sondermann-Wölke, James Kuria Kimotho, and Walter
Sextro. “Controlling the Remaining Useful Lifetime Using Self-Optimization.” Chemical
Engineering Transactions 33 (2013): 625–30. https://doi.org/10.3303/CET1333105.'
ieee: T. Meyer, C. Sondermann-Wölke, J. K. Kimotho, and W. Sextro, “Controlling
the Remaining Useful Lifetime using Self-Optimization,” Chemical Engineering
Transactions, vol. 33, pp. 625–630, 2013.
mla: Meyer, Tobias, et al. “Controlling the Remaining Useful Lifetime Using Self-Optimization.”
Chemical Engineering Transactions, vol. 33, 2013, pp. 625–30, doi:10.3303/CET1333105.
short: T. Meyer, C. Sondermann-Wölke, J.K. Kimotho, W. Sextro, Chemical Engineering
Transactions 33 (2013) 625–630.
date_created: 2019-05-20T11:15:59Z
date_updated: 2019-09-16T11:20:50Z
department:
- _id: '151'
doi: 10.3303/CET1333105
intvolume: ' 33'
language:
- iso: eng
page: 625-630
publication: Chemical Engineering Transactions
quality_controlled: '1'
status: public
title: Controlling the Remaining Useful Lifetime using Self-Optimization
type: journal_article
user_id: '55222'
volume: 33
year: '2013'
...
---
_id: '9863'
abstract:
- lang: eng
text: The 9th International Workshop on Piezoelectric Materials and Applications
in Actuators (IWPMA 2012) was successfully held on 22–25 April 2012 in Hirosaki,
Japan. The general chair was Prof. M.K. Kurosawa from the Tokyo Institute of Technology,
Japan. In the past, Korea, Germany, Turkey, China, and USA have hosted the annual
conference, but this was the first time for the annual IWPMA conference to be
held in Japan. The IWPMA 2012 was organized as a joint symposium with JTTAS Smart
Actuator/Sensor Study Committee and ICAT International Actuator Symposium. More
than 150 people from the world (12 countries) participated and had fruitful discussions
with 138 presentations including 11 invited talks. In addition to piezoelectric
materials and piezoelectric actuators, the presentation topics were expanded to
include solid-state actuators, energy harvesting, multifunctional materials, and
other current important issues. It is our honor to pronounce that the “Sensors
and Actuators A” journal has published this special issue on the IWPMA 2012 including
the best 25 contributions. This issue covers the functional materials, such as
piezoelectric and magnetostrictive materials, and their applications. However,
for the innovative devices, various ideas concerning materials, mechanisms, designs,
fabrication process, and control-systems are also required to be organically combined.
From the view of this concept, we believe the published 25 papers can excite the
researcher's intellectual curiosity concerning these issues and can serve as the
driving force for further breakthroughs. Please enjoy the latest research results
selected by our editor team. Finally, we appreciate all participants in the IWPMA
2012 and the devoted reviewers for the publication. We hope that the papers in
this special issue will open up the next researches, which will be presented in
the future IWPMA conferences.
citation:
ama: Morita T, Hemsel T, Ijima T, et al., eds. Selected Papers from the 9th International
Workshop on Piezoelectric Materials and Applications in Actuators. Vol 200.
Elsevier; 2013:1-172. doi:10.1016/j.sna.2013.06.017
apa: 'Morita, T., Hemsel, T., Ijima, T., Jeong, D. Y., Kanda, T., Twiefel, J., …
Lallart, M. (Eds.). (2013). Selected Papers from the 9th International Workshop
on Piezoelectric Materials and Applications in Actuators. Sensors and Actuators
A: Physical (Vol. 200, pp. 1–172). Hirosaki: Elsevier. https://doi.org/10.1016/j.sna.2013.06.017'
bibtex: '@book{Morita_Hemsel_Ijima_Jeong_Kanda_Twiefel_Uzgur_Lallart_2013, title={Selected
Papers from the 9th International Workshop on Piezoelectric Materials and Applications
in Actuators}, volume={200}, DOI={10.1016/j.sna.2013.06.017},
journal={Sensors and Actuators A: Physical}, publisher={Elsevier}, year={2013},
pages={1–172} }'
chicago: 'Morita, Takeshi, Tobias Hemsel, T. Ijima, D. Y. Jeong, T. Kanda, Jens
Twiefel, E. Uzgur, and M. Lallart, eds. Selected Papers from the 9th International
Workshop on Piezoelectric Materials and Applications in Actuators. Sensors
and Actuators A: Physical. Vol. 200. Elsevier, 2013. https://doi.org/10.1016/j.sna.2013.06.017.'
ieee: T. Morita et al., Eds., Selected Papers from the 9th International
Workshop on Piezoelectric Materials and Applications in Actuators, vol. 200.
Elsevier, 2013, pp. 1–172.
mla: 'Morita, Takeshi, et al., editors. “Selected Papers from the 9th International
Workshop on Piezoelectric Materials and Applications in Actuators.” Sensors
and Actuators A: Physical, vol. 200, Elsevier, 2013, pp. 1–172, doi:10.1016/j.sna.2013.06.017.'
short: T. Morita, T. Hemsel, T. Ijima, D.Y. Jeong, T. Kanda, J. Twiefel, E. Uzgur,
M. Lallart, eds., Selected Papers from the 9th International Workshop on Piezoelectric
Materials and Applications in Actuators, Elsevier, 2013.
conference:
end_date: 2012-04-25
location: Hirosaki
name: International Workshop on Piezoelectric Materials and Applications in Actuators
start_date: 2012-04-22
date_created: 2019-05-20T11:56:03Z
date_updated: 2020-12-18T11:19:37Z
department:
- _id: '151'
doi: 10.1016/j.sna.2013.06.017
editor:
- first_name: Takeshi
full_name: Morita, Takeshi
last_name: Morita
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: T.
full_name: Ijima, T.
last_name: Ijima
- first_name: D. Y.
full_name: Jeong, D. Y.
last_name: Jeong
- first_name: T.
full_name: Kanda, T.
last_name: Kanda
- first_name: Jens
full_name: Twiefel, Jens
last_name: Twiefel
- first_name: E.
full_name: Uzgur, E.
last_name: Uzgur
- first_name: M.
full_name: Lallart, M.
last_name: Lallart
intvolume: ' 200'
language:
- iso: eng
page: 1-172
publication: 'Sensors and Actuators A: Physical'
publisher: Elsevier
quality_controlled: '1'
status: public
title: Selected Papers from the 9th International Workshop on Piezoelectric Materials
and Applications in Actuators
type: journal_editor
user_id: '210'
volume: 200
year: '2013'
...
---
_id: '9866'
abstract:
- lang: eng
text: The hydrothermal method utilizes a solution-based chemical reaction to synthesize
piezoelectric thin films and powders. This method has a number of advantages,
such as low-temperature synthesis, and high purity and high quality of the product.
In order to promote hydrothermal reactions, we developed an ultrasonic assisted
hydrothermal method and confirmed that it produces dense and thick lead--zirconate--titanate
(PZT) films. In the hydrothermal method, a crystal growth process follows the
nucleation process. In this study, we verified that ultrasonic irradiation is
effective for the nucleation process, and there is an optimum irradiation period
to obtain thicker PZT films. With this optimization, a 9.2-$\mu$ m-thick PZT polycrystalline
film was obtained in a single deposition process. For this film, ultrasonic irradiation
was carried out from the beginning of the reaction for 18 h, followed by a 6 h
deposition without ultrasonic irradiation. These results indicate that the ultrasonic
irradiation mainly promotes the nucleation process.
author:
- first_name: Kanako
full_name: Ohta, Kanako
last_name: Ohta
- first_name: Gaku
full_name: Isobe, Gaku
last_name: Isobe
- first_name: Peter
full_name: Bornmann, Peter
last_name: Bornmann
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Takeshi
full_name: Morita, Takeshi
last_name: Morita
citation:
ama: Ohta K, Isobe G, Bornmann P, Hemsel T, Morita T. Study on optimizing ultrasonic
irradiation period for thick polycrystalline PZT film by hydrothermal method.
Ultrasonics. 2013;53(4):837-841. doi:10.1016/j.ultras.2012.12.003
apa: Ohta, K., Isobe, G., Bornmann, P., Hemsel, T., & Morita, T. (2013). Study
on optimizing ultrasonic irradiation period for thick polycrystalline PZT film
by hydrothermal method. Ultrasonics, 53(4), 837–841. https://doi.org/10.1016/j.ultras.2012.12.003
bibtex: '@article{Ohta_Isobe_Bornmann_Hemsel_Morita_2013, title={Study on optimizing
ultrasonic irradiation period for thick polycrystalline PZT film by hydrothermal
method}, volume={53}, DOI={10.1016/j.ultras.2012.12.003},
number={4}, journal={Ultrasonics}, author={Ohta, Kanako and Isobe, Gaku and Bornmann,
Peter and Hemsel, Tobias and Morita, Takeshi}, year={2013}, pages={837–841} }'
chicago: 'Ohta, Kanako, Gaku Isobe, Peter Bornmann, Tobias Hemsel, and Takeshi Morita.
“Study on Optimizing Ultrasonic Irradiation Period for Thick Polycrystalline PZT
Film by Hydrothermal Method.” Ultrasonics 53, no. 4 (2013): 837–41. https://doi.org/10.1016/j.ultras.2012.12.003.'
ieee: K. Ohta, G. Isobe, P. Bornmann, T. Hemsel, and T. Morita, “Study on optimizing
ultrasonic irradiation period for thick polycrystalline PZT film by hydrothermal
method,” Ultrasonics, vol. 53, no. 4, pp. 837–841, 2013.
mla: Ohta, Kanako, et al. “Study on Optimizing Ultrasonic Irradiation Period for
Thick Polycrystalline PZT Film by Hydrothermal Method.” Ultrasonics, vol.
53, no. 4, 2013, pp. 837–41, doi:10.1016/j.ultras.2012.12.003.
short: K. Ohta, G. Isobe, P. Bornmann, T. Hemsel, T. Morita, Ultrasonics 53 (2013)
837–841.
date_created: 2019-05-20T12:03:07Z
date_updated: 2019-09-16T10:54:27Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2012.12.003
intvolume: ' 53'
issue: '4'
keyword:
- Piezoelectric material
language:
- iso: eng
page: 837 - 841
publication: Ultrasonics
publication_identifier:
issn:
- 0041-624X
quality_controlled: '1'
status: public
title: Study on optimizing ultrasonic irradiation period for thick polycrystalline
PZT film by hydrothermal method
type: journal_article
user_id: '55222'
volume: 53
year: '2013'
...
---
_id: '517'
abstract:
- lang: eng
text: In the Semantic (Web) Services area, services are considered black boxes with
a semantic description of their interfaces as to allow for precise service selection
and configuration. The semantic description is usually grounded on domain-specific
concepts as modeled in ontologies. This accounts for types used in service signatures,
but also predicates occurring in preconditions and effects of services. Ontologies,
in particular those enhanced with rules, capture the knowledge of domain experts
on properties of and relations between domain concepts. In this paper, we present
a verification technique for service compositions which makes use of this domain
knowledge. We consider a service composition to be an assembly of services of
which we just know signatures, preconditions, and effects. We aim at proving that
a composition satisfies a (user-defined) requirement, specified in terms of guaranteed
preconditions and required postconditions. As an underlying verification engine
we use an SMT solver. To take advantage of the domain knowledge (and often, to
enable verification at all), the knowledge is fed into the solver in the form of
sorts, uninterpreted functions and in particular assertions as to enhance the
solver’s reasoning capabilities. Thereby, we allow for deductions within a domain
previously unknown to the solver. We exemplify our technique on a case study from
the area of water network optimization software.
author:
- first_name: Sven
full_name: Walther, Sven
last_name: Walther
- first_name: Heike
full_name: Wehrheim, Heike
id: '573'
last_name: Wehrheim
citation:
ama: 'Walther S, Wehrheim H. Knowledge-Based Verification of Service Compositions
- An SMT approach. In: Proceedings of the 18th IEEE International Conference
on Engineering of Complex Computer Systems (ICECCS). ; 2013:24-32. doi:10.1109/ICECCS.2013.14'
apa: Walther, S., & Wehrheim, H. (2013). Knowledge-Based Verification of Service
Compositions - An SMT approach. In Proceedings of the 18th IEEE International
Conference on Engineering of Complex Computer Systems (ICECCS) (pp. 24–32).
https://doi.org/10.1109/ICECCS.2013.14
bibtex: '@inproceedings{Walther_Wehrheim_2013, title={Knowledge-Based Verification
of Service Compositions - An SMT approach}, DOI={10.1109/ICECCS.2013.14},
booktitle={Proceedings of the 18th IEEE International Conference on Engineering
of Complex Computer Systems (ICECCS)}, author={Walther, Sven and Wehrheim, Heike},
year={2013}, pages={24–32} }'
chicago: Walther, Sven, and Heike Wehrheim. “Knowledge-Based Verification of Service
Compositions - An SMT Approach.” In Proceedings of the 18th IEEE International
Conference on Engineering of Complex Computer Systems (ICECCS), 24–32, 2013.
https://doi.org/10.1109/ICECCS.2013.14.
ieee: S. Walther and H. Wehrheim, “Knowledge-Based Verification of Service Compositions
- An SMT approach,” in Proceedings of the 18th IEEE International Conference
on Engineering of Complex Computer Systems (ICECCS), 2013, pp. 24–32.
mla: Walther, Sven, and Heike Wehrheim. “Knowledge-Based Verification of Service
Compositions - An SMT Approach.” Proceedings of the 18th IEEE International
Conference on Engineering of Complex Computer Systems (ICECCS), 2013, pp.
24–32, doi:10.1109/ICECCS.2013.14.
short: 'S. Walther, H. Wehrheim, in: Proceedings of the 18th IEEE International
Conference on Engineering of Complex Computer Systems (ICECCS), 2013, pp. 24–32.'
date_created: 2017-10-17T12:42:33Z
date_updated: 2022-01-06T07:01:41Z
ddc:
- '000'
department:
- _id: '77'
doi: 10.1109/ICECCS.2013.14
file:
- access_level: closed
content_type: application/pdf
creator: ups
date_created: 2018-11-02T13:26:08Z
date_updated: 2018-11-02T13:26:08Z
file_id: '5248'
file_name: 06601801.pdf
file_size: 217085
relation: main_file
file_date_updated: 2018-11-02T13:26:08Z
has_accepted_license: '1'
language:
- iso: eng
page: '24 - 32 '
project:
- _id: '1'
name: SFB 901
- _id: '11'
name: SFB 901 - Subprojekt B3
- _id: '3'
name: SFB 901 - Project Area B
publication: Proceedings of the 18th IEEE International Conference on Engineering
of Complex Computer Systems (ICECCS)
status: public
title: Knowledge-Based Verification of Service Compositions - An SMT approach
type: conference
user_id: '477'
year: '2013'
...
---
_id: '557'
abstract:
- lang: eng
text: Since the last two decades, the water consumption in Germany is decreasing,
which causes the water tanks and pipes in a water supply system to work inefficiently.
This paper proposes an approach for a decision support system, which helps to
decide how to plan new water tanks and resize existing tanks in water supply systems.
The approach uses a combination of network reduction, mathematical optimization
and hydraulic simulation. The mathematical optimization model is a nonconvex Mixed
Integer Quadratically Constrained Program (MIQCP), which is solved by a piecewise
linearization. As this may lead to many binary variables and therefore high computational
times, the size of the water supply system model is reduced before building the
optimization model. By applying several network reduction techniques there may
occur some hydraulic differences between the original network model and the reduced
network model. To make sure that the solution obtained in the optimization process
is feasible in the original water supply system, the solution is verified by a
hydraulic simulation tool.
author:
- first_name: Corinna
full_name: Hallmann, Corinna
last_name: Hallmann
citation:
ama: Hallmann C. An Approach for a Decision Support Systems to Optimize Water
Tanks in Water Supply Systems by Combining Network Reduction, Optimization and
Simulation. Universität Paderborn; 2013.
apa: Hallmann, C. (2013). An Approach for a Decision Support Systems to optimize
Water Tanks in Water Supply Systems by combining Network Reduction, Optimization
and Simulation. Universität Paderborn.
bibtex: '@book{Hallmann_2013, title={An Approach for a Decision Support Systems
to optimize Water Tanks in Water Supply Systems by combining Network Reduction,
Optimization and Simulation}, publisher={Universität Paderborn}, author={Hallmann,
Corinna}, year={2013} }'
chicago: Hallmann, Corinna. An Approach for a Decision Support Systems to Optimize
Water Tanks in Water Supply Systems by Combining Network Reduction, Optimization
and Simulation. Universität Paderborn, 2013.
ieee: C. Hallmann, An Approach for a Decision Support Systems to optimize Water
Tanks in Water Supply Systems by combining Network Reduction, Optimization and
Simulation. Universität Paderborn, 2013.
mla: Hallmann, Corinna. An Approach for a Decision Support Systems to Optimize
Water Tanks in Water Supply Systems by Combining Network Reduction, Optimization
and Simulation. Universität Paderborn, 2013.
short: C. Hallmann, An Approach for a Decision Support Systems to Optimize Water
Tanks in Water Supply Systems by Combining Network Reduction, Optimization and
Simulation, Universität Paderborn, 2013.
date_created: 2017-10-17T12:42:40Z
date_updated: 2022-01-06T07:01:59Z
ddc:
- '040'
file:
- access_level: closed
content_type: application/pdf
creator: florida
date_created: 2018-03-15T10:27:58Z
date_updated: 2018-03-15T10:27:58Z
file_id: '1283'
file_name: 557-Hal13.pdf
file_size: 271038
relation: main_file
success: 1
file_date_updated: 2018-03-15T10:27:58Z
has_accepted_license: '1'
project:
- _id: '1'
name: SFB 901
- _id: '15'
name: SFB 901 - Subprojekt C3
- _id: '4'
name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: An Approach for a Decision Support Systems to optimize Water Tanks in Water
Supply Systems by combining Network Reduction, Optimization and Simulation
type: report
user_id: '15504'
year: '2013'
...
---
_id: '16594'
author:
- first_name: Kathrin
full_name: Flasskamp, Kathrin
last_name: Flasskamp
- first_name: Todd
full_name: Murphey, Todd
last_name: Murphey
- first_name: Sina
full_name: Ober-Blobaum, Sina
last_name: Ober-Blobaum
citation:
ama: 'Flasskamp K, Murphey T, Ober-Blobaum S. Discretized switching time optimization
problems. In: 2013 European Control Conference (ECC). ; 2013. doi:10.23919/ecc.2013.6669577'
apa: Flasskamp, K., Murphey, T., & Ober-Blobaum, S. (2013). Discretized switching
time optimization problems. In 2013 European Control Conference (ECC).
https://doi.org/10.23919/ecc.2013.6669577
bibtex: '@inproceedings{Flasskamp_Murphey_Ober-Blobaum_2013, title={Discretized
switching time optimization problems}, DOI={10.23919/ecc.2013.6669577},
booktitle={2013 European Control Conference (ECC)}, author={Flasskamp, Kathrin
and Murphey, Todd and Ober-Blobaum, Sina}, year={2013} }'
chicago: Flasskamp, Kathrin, Todd Murphey, and Sina Ober-Blobaum. “Discretized Switching
Time Optimization Problems.” In 2013 European Control Conference (ECC),
2013. https://doi.org/10.23919/ecc.2013.6669577.
ieee: K. Flasskamp, T. Murphey, and S. Ober-Blobaum, “Discretized switching time
optimization problems,” in 2013 European Control Conference (ECC), 2013.
mla: Flasskamp, Kathrin, et al. “Discretized Switching Time Optimization Problems.”
2013 European Control Conference (ECC), 2013, doi:10.23919/ecc.2013.6669577.
short: 'K. Flasskamp, T. Murphey, S. Ober-Blobaum, in: 2013 European Control Conference
(ECC), 2013.'
date_created: 2020-04-16T05:56:11Z
date_updated: 2022-01-06T06:52:52Z
department:
- _id: '101'
doi: 10.23919/ecc.2013.6669577
language:
- iso: eng
publication: 2013 European Control Conference (ECC)
publication_identifier:
isbn:
- '9783033039629'
publication_status: published
status: public
title: Discretized switching time optimization problems
type: conference
user_id: '15701'
year: '2013'
...
---
_id: '16595'
author:
- first_name: Kathrin
full_name: Flaßkamp, Kathrin
last_name: Flaßkamp
- first_name: Todd
full_name: Murphey, Todd
last_name: Murphey
- first_name: Sina
full_name: Ober-Blöbaum, Sina
last_name: Ober-Blöbaum
citation:
ama: Flaßkamp K, Murphey T, Ober-Blöbaum S. Optimization for discretized switched
systems. PAMM. 2013:401-402. doi:10.1002/pamm.201310196
apa: Flaßkamp, K., Murphey, T., & Ober-Blöbaum, S. (2013). Optimization for
discretized switched systems. PAMM, 401–402. https://doi.org/10.1002/pamm.201310196
bibtex: '@article{Flaßkamp_Murphey_Ober-Blöbaum_2013, title={Optimization for discretized
switched systems}, DOI={10.1002/pamm.201310196},
journal={PAMM}, author={Flaßkamp, Kathrin and Murphey, Todd and Ober-Blöbaum,
Sina}, year={2013}, pages={401–402} }'
chicago: Flaßkamp, Kathrin, Todd Murphey, and Sina Ober-Blöbaum. “Optimization for
Discretized Switched Systems.” PAMM, 2013, 401–2. https://doi.org/10.1002/pamm.201310196.
ieee: K. Flaßkamp, T. Murphey, and S. Ober-Blöbaum, “Optimization for discretized
switched systems,” PAMM, pp. 401–402, 2013.
mla: Flaßkamp, Kathrin, et al. “Optimization for Discretized Switched Systems.”
PAMM, 2013, pp. 401–02, doi:10.1002/pamm.201310196.
short: K. Flaßkamp, T. Murphey, S. Ober-Blöbaum, PAMM (2013) 401–402.
date_created: 2020-04-16T05:57:12Z
date_updated: 2022-01-06T06:52:52Z
department:
- _id: '101'
doi: 10.1002/pamm.201310196
language:
- iso: eng
page: 401-402
publication: PAMM
publication_identifier:
issn:
- 1617-7061
publication_status: published
status: public
title: Optimization for discretized switched systems
type: journal_article
user_id: '15701'
year: '2013'
...
---
_id: '16643'
author:
- first_name: Sina
full_name: Ober-Blöbaum, Sina
last_name: Ober-Blöbaum
- first_name: Albert
full_name: Seifried, Albert
last_name: Seifried
citation:
ama: 'Ober-Blöbaum S, Seifried A. A multiobjective optimization approach for optimal
control problems of mechanical systems with uncertainties. In: 2013 European
Control Conference (ECC). ; 2013. doi:10.23919/ecc.2013.6669594'
apa: Ober-Blöbaum, S., & Seifried, A. (2013). A multiobjective optimization
approach for optimal control problems of mechanical systems with uncertainties.
In 2013 European Control Conference (ECC). https://doi.org/10.23919/ecc.2013.6669594
bibtex: '@inproceedings{Ober-Blöbaum_Seifried_2013, title={A multiobjective optimization
approach for optimal control problems of mechanical systems with uncertainties},
DOI={10.23919/ecc.2013.6669594},
booktitle={2013 European Control Conference (ECC)}, author={Ober-Blöbaum, Sina
and Seifried, Albert}, year={2013} }'
chicago: Ober-Blöbaum, Sina, and Albert Seifried. “A Multiobjective Optimization
Approach for Optimal Control Problems of Mechanical Systems with Uncertainties.”
In 2013 European Control Conference (ECC), 2013. https://doi.org/10.23919/ecc.2013.6669594.
ieee: S. Ober-Blöbaum and A. Seifried, “A multiobjective optimization approach for
optimal control problems of mechanical systems with uncertainties,” in 2013
European Control Conference (ECC), 2013.
mla: Ober-Blöbaum, Sina, and Albert Seifried. “A Multiobjective Optimization Approach
for Optimal Control Problems of Mechanical Systems with Uncertainties.” 2013
European Control Conference (ECC), 2013, doi:10.23919/ecc.2013.6669594.
short: 'S. Ober-Blöbaum, A. Seifried, in: 2013 European Control Conference (ECC),
2013.'
date_created: 2020-04-16T09:01:37Z
date_updated: 2022-01-06T06:52:53Z
department:
- _id: '101'
doi: 10.23919/ecc.2013.6669594
language:
- iso: eng
publication: 2013 European Control Conference (ECC)
publication_identifier:
isbn:
- '9783033039629'
publication_status: published
status: public
title: A multiobjective optimization approach for optimal control problems of mechanical
systems with uncertainties
type: conference
user_id: '15701'
year: '2013'
...
---
_id: '16670'
author:
- first_name: Oliver
full_name: Schütze, Oliver
last_name: Schütze
- first_name: Katrin
full_name: Witting, Katrin
last_name: Witting
- first_name: Sina
full_name: Ober-Blöbaum, Sina
last_name: Ober-Blöbaum
- first_name: Michael
full_name: Dellnitz, Michael
last_name: Dellnitz
citation:
ama: 'Schütze O, Witting K, Ober-Blöbaum S, Dellnitz M. Set Oriented Methods for
the Numerical Treatment of Multiobjective Optimization Problems. In: EVOLVE-
A Bridge between Probability, Set Oriented Numerics and Evolutionary Computation.
Berlin, Heidelberg; 2013. doi:10.1007/978-3-642-32726-1_5'
apa: Schütze, O., Witting, K., Ober-Blöbaum, S., & Dellnitz, M. (2013). Set
Oriented Methods for the Numerical Treatment of Multiobjective Optimization Problems.
In EVOLVE- A Bridge between Probability, Set Oriented Numerics and Evolutionary
Computation. Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32726-1_5
bibtex: '@inbook{Schütze_Witting_Ober-Blöbaum_Dellnitz_2013, place={Berlin, Heidelberg},
title={Set Oriented Methods for the Numerical Treatment of Multiobjective Optimization
Problems}, DOI={10.1007/978-3-642-32726-1_5},
booktitle={EVOLVE- A Bridge between Probability, Set Oriented Numerics and Evolutionary
Computation}, author={Schütze, Oliver and Witting, Katrin and Ober-Blöbaum, Sina
and Dellnitz, Michael}, year={2013} }'
chicago: Schütze, Oliver, Katrin Witting, Sina Ober-Blöbaum, and Michael Dellnitz.
“Set Oriented Methods for the Numerical Treatment of Multiobjective Optimization
Problems.” In EVOLVE- A Bridge between Probability, Set Oriented Numerics and
Evolutionary Computation. Berlin, Heidelberg, 2013. https://doi.org/10.1007/978-3-642-32726-1_5.
ieee: O. Schütze, K. Witting, S. Ober-Blöbaum, and M. Dellnitz, “Set Oriented Methods
for the Numerical Treatment of Multiobjective Optimization Problems,” in EVOLVE-
A Bridge between Probability, Set Oriented Numerics and Evolutionary Computation,
Berlin, Heidelberg, 2013.
mla: Schütze, Oliver, et al. “Set Oriented Methods for the Numerical Treatment of
Multiobjective Optimization Problems.” EVOLVE- A Bridge between Probability,
Set Oriented Numerics and Evolutionary Computation, 2013, doi:10.1007/978-3-642-32726-1_5.
short: 'O. Schütze, K. Witting, S. Ober-Blöbaum, M. Dellnitz, in: EVOLVE- A Bridge
between Probability, Set Oriented Numerics and Evolutionary Computation, Berlin,
Heidelberg, 2013.'
date_created: 2020-04-16T10:05:59Z
date_updated: 2022-01-06T06:52:54Z
department:
- _id: '101'
doi: 10.1007/978-3-642-32726-1_5
language:
- iso: eng
place: Berlin, Heidelberg
publication: EVOLVE- A Bridge between Probability, Set Oriented Numerics and Evolutionary
Computation
publication_identifier:
isbn:
- '9783642327254'
- '9783642327261'
issn:
- 1860-949X
- 1860-9503
publication_status: published
status: public
title: Set Oriented Methods for the Numerical Treatment of Multiobjective Optimization
Problems
type: book_chapter
user_id: '15701'
year: '2013'
...
---
_id: '16677'
author:
- first_name: Katrin
full_name: Witting, Katrin
last_name: Witting
- first_name: Sina
full_name: Ober-Blöbaum, Sina
last_name: Ober-Blöbaum
- first_name: Michael
full_name: Dellnitz, Michael
last_name: Dellnitz
citation:
ama: Witting K, Ober-Blöbaum S, Dellnitz M. A variational approach to define robustness
for parametric multiobjective optimization problems. Journal of Global Optimization.
2013:331-345. doi:10.1007/s10898-012-9972-6
apa: Witting, K., Ober-Blöbaum, S., & Dellnitz, M. (2013). A variational approach
to define robustness for parametric multiobjective optimization problems. Journal
of Global Optimization, 331–345. https://doi.org/10.1007/s10898-012-9972-6
bibtex: '@article{Witting_Ober-Blöbaum_Dellnitz_2013, title={A variational approach
to define robustness for parametric multiobjective optimization problems}, DOI={10.1007/s10898-012-9972-6},
journal={Journal of Global Optimization}, author={Witting, Katrin and Ober-Blöbaum,
Sina and Dellnitz, Michael}, year={2013}, pages={331–345} }'
chicago: Witting, Katrin, Sina Ober-Blöbaum, and Michael Dellnitz. “A Variational
Approach to Define Robustness for Parametric Multiobjective Optimization Problems.”
Journal of Global Optimization, 2013, 331–45. https://doi.org/10.1007/s10898-012-9972-6.
ieee: K. Witting, S. Ober-Blöbaum, and M. Dellnitz, “A variational approach to define
robustness for parametric multiobjective optimization problems,” Journal of
Global Optimization, pp. 331–345, 2013.
mla: Witting, Katrin, et al. “A Variational Approach to Define Robustness for Parametric
Multiobjective Optimization Problems.” Journal of Global Optimization,
2013, pp. 331–45, doi:10.1007/s10898-012-9972-6.
short: K. Witting, S. Ober-Blöbaum, M. Dellnitz, Journal of Global Optimization
(2013) 331–345.
date_created: 2020-04-16T10:14:04Z
date_updated: 2022-01-06T06:52:54Z
department:
- _id: '101'
doi: 10.1007/s10898-012-9972-6
language:
- iso: eng
page: 331-345
publication: Journal of Global Optimization
publication_identifier:
issn:
- 0925-5001
- 1573-2916
publication_status: published
status: public
title: A variational approach to define robustness for parametric multiobjective optimization
problems
type: journal_article
user_id: '15701'
year: '2013'
...
---
_id: '15755'
author:
- first_name: Robert
full_name: Busa-Fekete, Robert
last_name: Busa-Fekete
- first_name: T.
full_name: Fober, T.
last_name: Fober
- first_name: Eyke
full_name: Hüllermeier, Eyke
id: '48129'
last_name: Hüllermeier
citation:
ama: 'Busa-Fekete R, Fober T, Hüllermeier E. Preference-based evolutionary optimization
using generalized racing algorithms. In: Hoffmann F, Hüllermeier E, eds. In
Proceedings 23th Workshop Computational Intelligence, Dortmund Germany. KIT
Scientific Publishing; 2013:237-246.'
apa: Busa-Fekete, R., Fober, T., & Hüllermeier, E. (2013). Preference-based
evolutionary optimization using generalized racing algorithms. In F. Hoffmann
& E. Hüllermeier (Eds.), in Proceedings 23th Workshop Computational Intelligence,
Dortmund Germany (pp. 237–246). KIT Scientific Publishing.
bibtex: '@inproceedings{Busa-Fekete_Fober_Hüllermeier_2013, title={Preference-based
evolutionary optimization using generalized racing algorithms}, booktitle={in
Proceedings 23th Workshop Computational Intelligence, Dortmund Germany}, publisher={KIT
Scientific Publishing}, author={Busa-Fekete, Robert and Fober, T. and Hüllermeier,
Eyke}, editor={Hoffmann, F. and Hüllermeier, EykeEditors}, year={2013}, pages={237–246}
}'
chicago: Busa-Fekete, Robert, T. Fober, and Eyke Hüllermeier. “Preference-Based
Evolutionary Optimization Using Generalized Racing Algorithms.” In In Proceedings
23th Workshop Computational Intelligence, Dortmund Germany, edited by F. Hoffmann
and Eyke Hüllermeier, 237–46. KIT Scientific Publishing, 2013.
ieee: R. Busa-Fekete, T. Fober, and E. Hüllermeier, “Preference-based evolutionary
optimization using generalized racing algorithms,” in in Proceedings 23th Workshop
Computational Intelligence, Dortmund Germany, 2013, pp. 237–246.
mla: Busa-Fekete, Robert, et al. “Preference-Based Evolutionary Optimization Using
Generalized Racing Algorithms.” In Proceedings 23th Workshop Computational
Intelligence, Dortmund Germany, edited by F. Hoffmann and Eyke Hüllermeier,
KIT Scientific Publishing, 2013, pp. 237–46.
short: 'R. Busa-Fekete, T. Fober, E. Hüllermeier, in: F. Hoffmann, E. Hüllermeier
(Eds.), In Proceedings 23th Workshop Computational Intelligence, Dortmund Germany,
KIT Scientific Publishing, 2013, pp. 237–246.'
date_created: 2020-02-03T14:31:54Z
date_updated: 2022-01-06T06:52:32Z
department:
- _id: '34'
- _id: '7'
- _id: '355'
editor:
- first_name: F.
full_name: Hoffmann, F.
last_name: Hoffmann
- first_name: Eyke
full_name: Hüllermeier, Eyke
last_name: Hüllermeier
language:
- iso: eng
page: 237-246
publication: in Proceedings 23th Workshop Computational Intelligence, Dortmund Germany
publisher: KIT Scientific Publishing
status: public
title: Preference-based evolutionary optimization using generalized racing algorithms
type: conference
user_id: '49109'
year: '2013'
...
---
_id: '15094'
author:
- first_name: Stefan
full_name: Böttcher, Stefan
id: '624'
last_name: Böttcher
- first_name: Marc
full_name: Brandenburg, Marc
last_name: Brandenburg
- first_name: Rita
full_name: Hartel, Rita
id: '14961'
last_name: Hartel
citation:
ama: 'Böttcher S, Brandenburg M, Hartel R. DAG - Index - A Compressed Index for
XML Keyword Search. In: WEBIST 2013 - Proceedings of the 9th International
Conference on Web Information Systems and Technologies. SciTePress; 2013:137-140.'
apa: Böttcher, S., Brandenburg, M., & Hartel, R. (2013). DAG - Index - A Compressed
Index for XML Keyword Search. In WEBIST 2013 - Proceedings of the 9th International
Conference on Web Information Systems and Technologies (pp. 137–140). SciTePress.
bibtex: '@inproceedings{Böttcher_Brandenburg_Hartel_2013, title={DAG - Index - A
Compressed Index for XML Keyword Search}, booktitle={WEBIST 2013 - Proceedings
of the 9th International Conference on Web Information Systems and Technologies},
publisher={SciTePress}, author={Böttcher, Stefan and Brandenburg, Marc and Hartel,
Rita}, year={2013}, pages={137–140} }'
chicago: Böttcher, Stefan, Marc Brandenburg, and Rita Hartel. “DAG - Index - A Compressed
Index for XML Keyword Search.” In WEBIST 2013 - Proceedings of the 9th International
Conference on Web Information Systems and Technologies, 137–40. SciTePress,
2013.
ieee: S. Böttcher, M. Brandenburg, and R. Hartel, “DAG - Index - A Compressed Index
for XML Keyword Search,” in WEBIST 2013 - Proceedings of the 9th International
Conference on Web Information Systems and Technologies, 2013, pp. 137–140.
mla: Böttcher, Stefan, et al. “DAG - Index - A Compressed Index for XML Keyword
Search.” WEBIST 2013 - Proceedings of the 9th International Conference on Web
Information Systems and Technologies, SciTePress, 2013, pp. 137–40.
short: 'S. Böttcher, M. Brandenburg, R. Hartel, in: WEBIST 2013 - Proceedings of
the 9th International Conference on Web Information Systems and Technologies,
SciTePress, 2013, pp. 137–140.'
date_created: 2019-11-21T15:21:01Z
date_updated: 2022-01-06T06:52:15Z
department:
- _id: '69'
language:
- iso: eng
page: 137-140
publication: WEBIST 2013 - Proceedings of the 9th International Conference on Web
Information Systems and Technologies
publisher: SciTePress
status: public
title: DAG - Index - A Compressed Index for XML Keyword Search
type: conference
user_id: '14961'
year: '2013'
...
---
_id: '1626'
author:
- first_name: Dieter
full_name: Krimphove, Dieter
id: '282'
last_name: Krimphove
citation:
ama: 'Krimphove D. “Ihr Betet an, Was Ihr Nicht Kennt” (Jo 4, 22) - Eine Neue
Sicht Auf Die Trinität . Hamburg: Verlag Kovač; 2013.'
apa: 'Krimphove, D. (2013). “Ihr betet an, was ihr nicht kennt” (Jo 4, 22) -
Eine neue Sicht auf die Trinität . Hamburg: Verlag Kovač.'
bibtex: '@book{Krimphove_2013, place={Hamburg}, series={THEOS - Studienreihe Theologische
Forschungsergebnisse}, title={“Ihr betet an, was ihr nicht kennt” (Jo 4, 22) -
Eine neue Sicht auf die Trinität }, publisher={Verlag Kovač}, author={Krimphove,
Dieter}, year={2013}, collection={THEOS - Studienreihe Theologische Forschungsergebnisse}
}'
chicago: 'Krimphove, Dieter. “Ihr Betet an, Was Ihr Nicht Kennt” (Jo 4, 22) -
Eine Neue Sicht Auf Die Trinität . THEOS - Studienreihe Theologische Forschungsergebnisse.
Hamburg: Verlag Kovač, 2013.'
ieee: 'D. Krimphove, “Ihr betet an, was ihr nicht kennt” (Jo 4, 22) - Eine neue
Sicht auf die Trinität . Hamburg: Verlag Kovač, 2013.'
mla: Krimphove, Dieter. “Ihr Betet an, Was Ihr Nicht Kennt” (Jo 4, 22) - Eine
Neue Sicht Auf Die Trinität . Verlag Kovač, 2013.
short: D. Krimphove, “Ihr Betet an, Was Ihr Nicht Kennt” (Jo 4, 22) - Eine Neue
Sicht Auf Die Trinität , Verlag Kovač, Hamburg, 2013.
date_created: 2018-03-22T13:15:10Z
date_updated: 2022-01-06T06:52:47Z
page: '266'
place: Hamburg
publisher: Verlag Kovač
series_title: THEOS - Studienreihe Theologische Forschungsergebnisse
status: public
title: '"Ihr betet an, was ihr nicht kennt" (Jo 4, 22) - Eine neue Sicht auf die Trinität '
type: book
user_id: '282'
year: '2013'
...
---
_id: '16393'
abstract:
- lang: eng
text: Many 3D scenes (e.g. generated from CAD data) are composed of a multitude
of objects that are nested in each other. A showroom, for instance, may contain
multiple cars and every car has a gearbox with many gearwheels located inside.
Because the objects occlude each other, only few are visible from outside. We
present a new technique, Spherical Visibility Sampling (SVS), for real-time 3D
rendering of such -- possibly highly complex -- scenes. SVS exploits the occlusion
and annotates hierarchically structured objects with directional visibility information
in a preprocessing step. For different directions, the directional visibility
encodes which objects of a scene's region are visible from the outside of the
regions' enclosing bounding sphere. Since there is no need to store a separate
view space subdivision as in most techniques based on preprocessed visibility,
a small memory footprint is achieved. Using the directional visibility information
for an interactive walkthrough, the potentially visible objects can be retrieved
very efficiently without the need for further visibility tests. Our evaluation
shows that using SVS allows to preprocess complex 3D scenes fast and to visualize
them in real time (e.g. a Power Plant model and five animated Boeing 777 models
with billions of triangles). Because SVS does not require hardware support for
occlusion culling during rendering, it is even applicable for rendering large
scenes on mobile devices.
author:
- first_name: Benjamin
full_name: Eikel, Benjamin
last_name: Eikel
- first_name: Claudius
full_name: Jähn, Claudius
last_name: Jähn
- first_name: Matthias
full_name: Fischer, Matthias
id: '146'
last_name: Fischer
- first_name: Friedhelm
full_name: Meyer auf der Heide, Friedhelm
id: '15523'
last_name: Meyer auf der Heide
citation:
ama: 'Eikel B, Jähn C, Fischer M, Meyer auf der Heide F. Spherical Visibility Sampling.
In: Computer Graphics Forum. Vol 32. Proceedings of the 24th Eurographics
Symposium on Rendering. ; 2013:49-58. doi:10.1111/cgf.12150'
apa: Eikel, B., Jähn, C., Fischer, M., & Meyer auf der Heide, F. (2013). Spherical
Visibility Sampling. In Computer Graphics Forum (Vol. 32, pp. 49–58). https://doi.org/10.1111/cgf.12150
bibtex: '@inproceedings{Eikel_Jähn_Fischer_Meyer auf der Heide_2013, series={Proceedings
of the 24th Eurographics Symposium on Rendering}, title={Spherical Visibility
Sampling}, volume={32}, DOI={10.1111/cgf.12150},
number={4}, booktitle={Computer Graphics Forum}, author={Eikel, Benjamin and Jähn,
Claudius and Fischer, Matthias and Meyer auf der Heide, Friedhelm}, year={2013},
pages={49–58}, collection={Proceedings of the 24th Eurographics Symposium on Rendering}
}'
chicago: Eikel, Benjamin, Claudius Jähn, Matthias Fischer, and Friedhelm Meyer auf
der Heide. “Spherical Visibility Sampling.” In Computer Graphics Forum,
32:49–58. Proceedings of the 24th Eurographics Symposium on Rendering, 2013. https://doi.org/10.1111/cgf.12150.
ieee: B. Eikel, C. Jähn, M. Fischer, and F. Meyer auf der Heide, “Spherical Visibility
Sampling,” in Computer Graphics Forum, 2013, vol. 32, no. 4, pp. 49–58.
mla: Eikel, Benjamin, et al. “Spherical Visibility Sampling.” Computer Graphics
Forum, vol. 32, no. 4, 2013, pp. 49–58, doi:10.1111/cgf.12150.
short: 'B. Eikel, C. Jähn, M. Fischer, F. Meyer auf der Heide, in: Computer Graphics
Forum, 2013, pp. 49–58.'
date_created: 2020-04-03T07:48:48Z
date_updated: 2022-01-06T06:52:50Z
department:
- _id: '63'
doi: 10.1111/cgf.12150
intvolume: ' 32'
issue: '4'
language:
- iso: eng
page: 49-58
publication: Computer Graphics Forum
publication_identifier:
issn:
- 0167-7055
publication_status: published
series_title: Proceedings of the 24th Eurographics Symposium on Rendering
status: public
title: Spherical Visibility Sampling
type: conference
user_id: '15415'
volume: 32
year: '2013'
...
---
_id: '16406'
abstract:
- lang: eng
text: "In order to evaluate the efficiency of algorithms for real-time 3D rendering,
different properties like rendering time, occluded triangles, or image quality,
need to be investigated. Since these properties depend on the position of the
camera, usually some camera path is chosen, along which the measurements are performed.
As those measurements cover only a small part of the scene, this approach hardly
allows drawing conclusions regarding the algorithm's properties at arbitrary positions
in the scene. The presented method allows the systematic and position-independent
evaluation of rendering algorithms. It uses an adaptive sampling approach to approximate
the distribution of a property (like rendering time) for all positions in the
scene. This approximation can be visualized to produce an intuitive impression
of the algorithm's behavior or be statistically analyzed for objectively rating
and comparing algorithms. We demonstrate our method by evaluating performance
aspects of a known occlusion culling algorithm.\r\n"
author:
- first_name: Claudius
full_name: Jähn, Claudius
last_name: Jähn
- first_name: Benjamin
full_name: Eikel, Benjamin
last_name: Eikel
- first_name: Matthias
full_name: Fischer, Matthias
id: '146'
last_name: Fischer
- first_name: Ralf
full_name: Petring, Ralf
last_name: Petring
- first_name: Friedhelm
full_name: Meyer auf der Heide, Friedhelm
id: '15523'
last_name: Meyer auf der Heide
citation:
ama: 'Jähn C, Eikel B, Fischer M, Petring R, Meyer auf der Heide F. Evaluation of
Rendering Algorithms Using Position-Dependent Scene Properties. In: Advances
in Visual Computing. Berlin, Heidelberg; 2013. doi:10.1007/978-3-642-41914-0_12'
apa: Jähn, C., Eikel, B., Fischer, M., Petring, R., & Meyer auf der Heide, F.
(2013). Evaluation of Rendering Algorithms Using Position-Dependent Scene Properties.
In Advances in Visual Computing. Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-41914-0_12
bibtex: '@inbook{Jähn_Eikel_Fischer_Petring_Meyer auf der Heide_2013, place={Berlin,
Heidelberg}, title={Evaluation of Rendering Algorithms Using Position-Dependent
Scene Properties}, DOI={10.1007/978-3-642-41914-0_12},
booktitle={Advances in Visual Computing}, author={Jähn, Claudius and Eikel, Benjamin
and Fischer, Matthias and Petring, Ralf and Meyer auf der Heide, Friedhelm}, year={2013}
}'
chicago: Jähn, Claudius, Benjamin Eikel, Matthias Fischer, Ralf Petring, and Friedhelm
Meyer auf der Heide. “Evaluation of Rendering Algorithms Using Position-Dependent
Scene Properties.” In Advances in Visual Computing. Berlin, Heidelberg,
2013. https://doi.org/10.1007/978-3-642-41914-0_12.
ieee: C. Jähn, B. Eikel, M. Fischer, R. Petring, and F. Meyer auf der Heide, “Evaluation
of Rendering Algorithms Using Position-Dependent Scene Properties,” in Advances
in Visual Computing, Berlin, Heidelberg, 2013.
mla: Jähn, Claudius, et al. “Evaluation of Rendering Algorithms Using Position-Dependent
Scene Properties.” Advances in Visual Computing, 2013, doi:10.1007/978-3-642-41914-0_12.
short: 'C. Jähn, B. Eikel, M. Fischer, R. Petring, F. Meyer auf der Heide, in: Advances
in Visual Computing, Berlin, Heidelberg, 2013.'
date_created: 2020-04-06T07:21:55Z
date_updated: 2022-01-06T06:52:50Z
department:
- _id: '63'
doi: 10.1007/978-3-642-41914-0_12
language:
- iso: eng
place: Berlin, Heidelberg
publication: Advances in Visual Computing
publication_identifier:
isbn:
- '9783642419133'
- '9783642419140'
issn:
- 0302-9743
- 1611-3349
publication_status: published
status: public
title: Evaluation of Rendering Algorithms Using Position-Dependent Scene Properties
type: book_chapter
user_id: '15415'
year: '2013'
...
---
_id: '16407'
abstract:
- lang: eng
text: "Many virtual 3D scenes, especially those that are large, are not structured
evenly. For such heterogeneous data, there is no single algorithm that is able
to render every scene type at each position fast and with the same high image
quality. For a small set of scenes, this situation can be improved if different
rendering algorithms are manually assigned to particular parts of the scene by
an experienced user. We introduce the Multi-Algorithm-Rendering method. It automatically
deploys different rendering algorithms simultaneously for a broad range of scene
types. The method divides the scene into subregions and measures the behavior
of different algorithms for each region in a preprocessing step. During runtime,
this data is utilized to compute an estimate for the quality and running time
of the available rendering algorithms from the observer's point of view. By solving
an optimizing problem, the image quality can be optimized by an assignment of
algorithms to regions while keeping the frame rate almost constant.\r\n"
author:
- first_name: Ralf
full_name: Petring, Ralf
last_name: Petring
- first_name: Benjamin
full_name: Eikel, Benjamin
last_name: Eikel
- first_name: Claudius
full_name: Jähn, Claudius
last_name: Jähn
- first_name: Matthias
full_name: Fischer, Matthias
id: '146'
last_name: Fischer
- first_name: Friedhelm
full_name: Meyer auf der Heide, Friedhelm
id: '15523'
last_name: Meyer auf der Heide
citation:
ama: 'Petring R, Eikel B, Jähn C, Fischer M, Meyer auf der Heide F. Real-Time 3D
Rendering of Heterogeneous Scenes. In: Advances in Visual Computing. Berlin,
Heidelberg; 2013. doi:10.1007/978-3-642-41914-0_44'
apa: Petring, R., Eikel, B., Jähn, C., Fischer, M., & Meyer auf der Heide, F.
(2013). Real-Time 3D Rendering of Heterogeneous Scenes. In Advances in Visual
Computing. Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-41914-0_44
bibtex: '@inbook{Petring_Eikel_Jähn_Fischer_Meyer auf der Heide_2013, place={Berlin,
Heidelberg}, title={Real-Time 3D Rendering of Heterogeneous Scenes}, DOI={10.1007/978-3-642-41914-0_44},
booktitle={Advances in Visual Computing}, author={Petring, Ralf and Eikel, Benjamin
and Jähn, Claudius and Fischer, Matthias and Meyer auf der Heide, Friedhelm},
year={2013} }'
chicago: Petring, Ralf, Benjamin Eikel, Claudius Jähn, Matthias Fischer, and Friedhelm
Meyer auf der Heide. “Real-Time 3D Rendering of Heterogeneous Scenes.” In Advances
in Visual Computing. Berlin, Heidelberg, 2013. https://doi.org/10.1007/978-3-642-41914-0_44.
ieee: R. Petring, B. Eikel, C. Jähn, M. Fischer, and F. Meyer auf der Heide, “Real-Time
3D Rendering of Heterogeneous Scenes,” in Advances in Visual Computing,
Berlin, Heidelberg, 2013.
mla: Petring, Ralf, et al. “Real-Time 3D Rendering of Heterogeneous Scenes.” Advances
in Visual Computing, 2013, doi:10.1007/978-3-642-41914-0_44.
short: 'R. Petring, B. Eikel, C. Jähn, M. Fischer, F. Meyer auf der Heide, in: Advances
in Visual Computing, Berlin, Heidelberg, 2013.'
date_created: 2020-04-06T07:38:52Z
date_updated: 2022-01-06T06:52:50Z
department:
- _id: '63'
doi: 10.1007/978-3-642-41914-0_44
language:
- iso: eng
place: Berlin, Heidelberg
publication: Advances in Visual Computing
publication_identifier:
isbn:
- '9783642419133'
- '9783642419140'
issn:
- 0302-9743
- 1611-3349
publication_status: published
status: public
title: Real-Time 3D Rendering of Heterogeneous Scenes
type: book_chapter
user_id: '15415'
year: '2013'
...
---
_id: '29966'
author:
- first_name: Christoph
full_name: Romaus, Christoph
last_name: Romaus
- first_name: Dominik
full_name: Wimmelbücker, Dominik
last_name: Wimmelbücker
- first_name: Karl Stephan Christian
full_name: Stille, Karl Stephan Christian
id: '30152'
last_name: Stille
orcid: 0000-0002-4212-6555
- first_name: Joachim
full_name: Böcker, Joachim
id: '66'
last_name: Böcker
orcid: 0000-0002-8480-7295
citation:
ama: 'Romaus C, Wimmelbücker D, Stille KSC, Böcker J. Self-optimization energy management
considering stochastic influences for a hybrid energy storage of an electric road
vehicle. In: 2013 International Electric Machines & Drives Conference.
IEEE; 2013. doi:10.1109/iemdc.2013.6556194'
apa: Romaus, C., Wimmelbücker, D., Stille, K. S. C., & Böcker, J. (2013). Self-optimization
energy management considering stochastic influences for a hybrid energy storage
of an electric road vehicle. 2013 International Electric Machines & Drives
Conference. https://doi.org/10.1109/iemdc.2013.6556194
bibtex: '@inproceedings{Romaus_Wimmelbücker_Stille_Böcker_2013, title={Self-optimization
energy management considering stochastic influences for a hybrid energy storage
of an electric road vehicle}, DOI={10.1109/iemdc.2013.6556194},
booktitle={2013 International Electric Machines & Drives Conference}, publisher={IEEE},
author={Romaus, Christoph and Wimmelbücker, Dominik and Stille, Karl Stephan Christian
and Böcker, Joachim}, year={2013} }'
chicago: Romaus, Christoph, Dominik Wimmelbücker, Karl Stephan Christian Stille,
and Joachim Böcker. “Self-Optimization Energy Management Considering Stochastic
Influences for a Hybrid Energy Storage of an Electric Road Vehicle.” In 2013
International Electric Machines & Drives Conference. IEEE, 2013. https://doi.org/10.1109/iemdc.2013.6556194.
ieee: 'C. Romaus, D. Wimmelbücker, K. S. C. Stille, and J. Böcker, “Self-optimization
energy management considering stochastic influences for a hybrid energy storage
of an electric road vehicle,” 2013, doi: 10.1109/iemdc.2013.6556194.'
mla: Romaus, Christoph, et al. “Self-Optimization Energy Management Considering
Stochastic Influences for a Hybrid Energy Storage of an Electric Road Vehicle.”
2013 International Electric Machines & Drives Conference, IEEE, 2013,
doi:10.1109/iemdc.2013.6556194.
short: 'C. Romaus, D. Wimmelbücker, K.S.C. Stille, J. Böcker, in: 2013 International
Electric Machines & Drives Conference, IEEE, 2013.'
date_created: 2022-02-23T09:14:13Z
date_updated: 2022-02-23T09:36:18Z
department:
- _id: '52'
doi: 10.1109/iemdc.2013.6556194
language:
- iso: eng
publication: 2013 International Electric Machines & Drives Conference
publication_status: published
publisher: IEEE
status: public
title: Self-optimization energy management considering stochastic influences for a
hybrid energy storage of an electric road vehicle
type: conference
user_id: '30152'
year: '2013'
...