@inproceedings{HildebrandtHolz, author = {Hildebrandt, Gerald and Holz, Klaus-Peter}, title = {Shared Management and Processing of Heterogeneous Information Resources in Distributed Hydroengineering Projects}, series = {Advances in hydro-science and -engineering, volume V, proceedings of the 5th International Conference on Hydro-Science and -Engineering, Warsaw University of Technology, Faculty of Environmental Engineering, Warsaw, Poland, September 18 -20, 2002}, booktitle = {Advances in hydro-science and -engineering, volume V, proceedings of the 5th International Conference on Hydro-Science and -Engineering, Warsaw University of Technology, Faculty of Environmental Engineering, Warsaw, Poland, September 18 -20, 2002}, address = {Warschau}, isbn = {83-90617-77-3}, abstract = {Modern hydroengineering projects demand for complete access to available information resources, which are often heterogeneous and distributed.}, language = {en} } @inproceedings{BethersHolzBerzinsetal., author = {Bethers, Uldis and Holz, Klaus-Peter and Berzins, V. and Sennikovs, Juris}, title = {Approach for Providing Input Data Series Required in Prognostic Simulations}, series = {Advances in hydro-science and -engineering, volume V, proceedings of the 5th International Conference on Hydro-Science and -Engineering, Warsaw University of Technology, Faculty of Environmental Engineering, Warsaw, Poland, September 18 -20, 2002}, booktitle = {Advances in hydro-science and -engineering, volume V, proceedings of the 5th International Conference on Hydro-Science and -Engineering, Warsaw University of Technology, Faculty of Environmental Engineering, Warsaw, Poland, September 18 -20, 2002}, address = {Warschau}, isbn = {83-90617-77-3}, abstract = {The mathematical modelling of almost any natural process is highly sensitive with respect to the model input data. The issue of the input data series for the prognostic morphodynamic nearshore calculations is addressed in the paper. Non-linear morphodynamic response to the windwave-waterlevel forcing requires providing nearly-natural input data series for performing forecast simulations. Further, the quantifying of the severeness of the provided data sets is essential to distinguish typical and critical prognostic scenarios.A closed approach is proposed aiming to replace widespread praxis of using "representative"}, language = {en} } @inproceedings{SchoenefeldtHolz, author = {Sch{\"o}nefeldt, Karen and Holz, Klaus-Peter}, title = {Web Based Flood Information System for Urban Areas}, series = {Advances in hydro-science and -engineering, volume V, proceedings of the 5th International Conference on Hydro-Science and -Engineering, Warsaw University of Technology, Faculty of Environmental Engineering, Warsaw, Poland, September 18 -20, 2002}, booktitle = {Advances in hydro-science and -engineering, volume V, proceedings of the 5th International Conference on Hydro-Science and -Engineering, Warsaw University of Technology, Faculty of Environmental Engineering, Warsaw, Poland, September 18 -20, 2002}, address = {Warschau}, isbn = {83-90617-77-3}, abstract = {For the management of disastrous flood events in rivers a variety of measures from warning to protection and eventually rescue has to be taken. Involved in these measures are experts from crisis management as well as members from supporting organisations, stakeholders and finally the citizens. All involved partners have to communicate to find proper decisions during the management of crisis situations. The process will be facilitated if education and training beforehand raise awareness to the risk potential in the area.Management of flood situations becomes, beside technical matters, a problem of information handling and dissemination. Conventional technologies are overcome. The emerging Information and Communication Technology (ICT) offers new potential and might even influence existing concepts at many sites.The paper deals with results from analysis of existing warning and crisis management systems at three sites. It aims at the design of an innovative solution utilising ICT as far as reasonable. The findings are integrated into a pilot software system adapted to the particular situation as given for the city of Frankfurt/Oder in the downstream part of the River Oder. The software solution is based on Internet accessible services for information distribution and collection, for warning risk prone citizens and for administrating rescue and protection services and materials. Flexibility is supported by utilisation of mobile communication technology. In the paper the software concept will be outlined, the covered features briefly described and the structure of information outlined. The software installed at Frankfurt/Oder will allow demonstration of the system within the Internet environment.}, language = {en} } @inproceedings{BazartserenHolz, author = {Bazartseren, Bunchingiv and Holz, Klaus-Peter}, title = {Improving the Performance of a Neural Network by Smoothening its Input Signal}, series = {Hydroinformatics 2002, proceedings of the Fifth International Conference on Hydroinformatics, Vol. 1, Cardiff, UK, July 1st - 5th 2002}, booktitle = {Hydroinformatics 2002, proceedings of the Fifth International Conference on Hydroinformatics, Vol. 1, Cardiff, UK, July 1st - 5th 2002}, publisher = {IWA}, address = {London}, isbn = {1-8433-9022-1}, pages = {743 -- 748}, abstract = {The article reports an attempt to obtain a better generalization of neural network model by smoothening its input signal. The considered case is a river runoff modelling at the outlet of a high-altitude lake. For the test location, the dominant peak of the annual hydrograph is induced by snow melt in the late spring. The summer rainfall has a less significance to the streamflow and the variability of daily runoff is very low, due to a regulating effect of the lake. The ANN model derived the daily average runoff quite accurately, with small inconsistencies in the output, using only a few input variables. To improve the model performance, the time series of air temperature was smoothened by a wavelet transform and Savitzky-Golay algorithm to compare with the normal procedure of moving window averaging. After using the smoothened data by different techniques, a noticeable improvement has been attained in the quality of the output of the individual ANN models, while the accuracy of the solutions were comparable.}, language = {en} } @inproceedings{BazartserenHildebrandtHolz, author = {Bazartseren, Bunchingiv and Hildebrandt, Gerald and Holz, Klaus-Peter}, title = {Hydroinformatic Web application and Web service for real-time water level presentation and short-term prediction}, series = {Environmental communication in the information society, proceedings of the 16th International Conference Informatics for Environmental Protection, Vol. 2, September 25 - 27, 2002, University of Technology, Vienna, Austria}, booktitle = {Environmental communication in the information society, proceedings of the 16th International Conference Informatics for Environmental Protection, Vol. 2, September 25 - 27, 2002, University of Technology, Vienna, Austria}, publisher = {ISEP, International Society for Environmental Protection}, address = {Vienna}, isbn = {3-9500036-7-3}, pages = {604 -- 610}, abstract = {Modern urbanization tends to cause a fast response time between a heavy precipitation and consequent runoff processes in a river basin. Therefore, it is even more essential nowadays to enable citizens to have a rapid and flexible access to information on the prevention or restoration measures in cases of flood, on the basis of the cutting edge advances of the Information and Communication Technology (ICT). The paper contains a description of a real-time Web application and service for water level observation, processing, presentation and a short term prediction of a river water level in the area of interest. The Artificial Neural Networks (ANN) are implemented for cost-effective water level prediction for a short horizon. On the whole, the Web applications and services should form a part of a publicly accessible Web based flood crisis management system.}, language = {en} } @incollection{BazartserenHolz, author = {Bazartseren, Bunchingiv and Holz, Klaus-Peter}, title = {Use of Artificial Neural Networks for Prediction of Coastal Morphological Evolution}, series = {Forum Bauinformatik 2002 - Junge Wissenschaftler forschen, Tagungsband 14. Forum Bauinformatik, 16. - 18.9.2002 Bochum}, booktitle = {Forum Bauinformatik 2002 - Junge Wissenschaftler forschen, Tagungsband 14. Forum Bauinformatik, 16. - 18.9.2002 Bochum}, editor = {Bilek, Jochen}, publisher = {VDI-Verlag}, address = {D{\"u}sseldorf}, isbn = {3-18-318104-5}, pages = {65 -- 72}, language = {en} } @article{GautamHolz, author = {Gautam, D. K. and Holz, Klaus-Peter}, title = {Rainfall-runoff Modelling using adaptive neuro-fuzzy Systems}, series = {Journal of Hydroinformatics}, volume = {3}, journal = {Journal of Hydroinformatics}, number = {1}, issn = {1464-7141}, pages = {3 -- 10}, language = {en} } @article{MolkenthinBelleudyHolzetal., author = {Molkenthin, Frank and Belleudy, Ph. and Holz, Klaus-Peter and Jozsa, J. and Price, R. and Veer, P. van der}, title = {Hydro-Web "WWW based Collaborative Engineering in Hydroscience" - a European Education Experiment in the Internet}, series = {Journal of Hydroinformatics}, volume = {3}, journal = {Journal of Hydroinformatics}, number = {4}, issn = {1464-7141}, pages = {239 -- 243}, language = {en} } @inproceedings{ChuaMertingHolz, author = {Chua, Lloyd H. C. and Merting, Frank and Holz, Klaus-Peter}, title = {River Innundation modelling for risk analysis}, series = {River basin management, proceedings International Conference on River Basin Management, Cardiff, Wales, UK, September 2001}, booktitle = {River basin management, proceedings International Conference on River Basin Management, Cardiff, Wales, UK, September 2001}, editor = {Falconer, R. A.}, publisher = {WIT Press}, address = {Southampton [u.a.]}, isbn = {1-85312-876-7}, language = {en} } @inproceedings{HildebrandtBrueggemannHolz, author = {Hildebrandt, Gerald and Br{\"u}ggemann, Bernhard Markus and Holz, Klaus-Peter}, title = {Distributed Research and Education Platforms in Engineering - Experience from Hydroengineering Examples}, series = {European perspectives on computer-supported collaborative learning, proceedings of the first European conference on computer-supported collaborative learning, March 22-24, 2001, Universiteit Maastricht, the Netherlands}, booktitle = {European perspectives on computer-supported collaborative learning, proceedings of the first European conference on computer-supported collaborative learning, March 22-24, 2001, Universiteit Maastricht, the Netherlands}, editor = {Dillenbourg, Pierre}, isbn = {90-5681-097-9}, language = {en} } @inproceedings{HolzHildebrandtMolkenthin, author = {Holz, Klaus-Peter and Hildebrandt, Gerald and Molkenthin, Frank}, title = {Virtual Laboratories for Projects in Environment Water}, series = {The information society and enlargement of the European Union, 17th International Conference Informatics for Environment Protection, Cottbus 2003}, booktitle = {The information society and enlargement of the European Union, 17th International Conference Informatics for Environment Protection, Cottbus 2003}, editor = {Gnauck, Albrecht}, publisher = {Metropolis-Verlag}, address = {Marburg}, isbn = {3-89518-440-3}, abstract = {Modern information and communication technology (ICT) enables new technical solutions to support collaboration in environmental engineering over distance. The establishment of "virtual laboratories" including application of Internet based project platforms, distributed team work and collaboration methods require new kinds of soft skills, knowledge and experience and a new "technological culture" to be generated just by doing - a task for education, training and profession in Hydro-Informatics. This is a challenge for the European dimension, where in future experts and engineers from different countries with different languages, different mentalities as well as different specialization and professional experience have to collaborate in research, teaching and practice. Training of collaborating in such new environment is the challenge of the courses HydroWeb and HydroEurope which by collaboration of 23 universities world-wide will help to establish common high quality university teaching courses and establish links between students from the involved countries. The students are solving a given environmental engineering task in distributed teams in the Internet. The students acquired in this course experience in interdisciplinary team work, net based project co-ordination and Web based reporting. They strengthened their social competence to collaborate in heterogeneous teams with members of different habits, nationalities, ages, educational backgrounds. The described experiment might be the basis to introduce Web based collaborative engineering in the regular course programme of water-environment related curricula at universities.}, language = {en} } @inproceedings{HolzHildebrandt, author = {Holz, Klaus-Peter and Hildebrandt, Gerald}, title = {Virtual Laboratories - Some Considerations from Practical Experience}, language = {en} } @inproceedings{HildebrandtHolz, author = {Hildebrandt, Gerald and Holz, Klaus-Peter}, title = {Web- and SMS-based Public Flood Warning Services by Neural Networks}, language = {en} } @inproceedings{Holz, author = {Holz, Klaus-Peter}, title = {Internet-based Tools for Flood Management}, language = {en} } @inproceedings{HolzHildebrandtMerting, author = {Holz, Klaus-Peter and Hildebrandt, Gerald and Merting, Frank}, title = {Hydro-Europe: Web based Collaborative Learning in Water-Engineering}, language = {en} } @inproceedings{HolzHildebrandtWeber, author = {Holz, Klaus-Peter and Hildebrandt, Gerald and Weber, Lars}, title = {Decision Support Potential of Internet based Systems for Flood Management}, language = {en} } @book{HolzErlich, author = {Holz, Klaus-Peter and Erlich, M.}, title = {Flood Events - Are We Prepared? : proceedings of the Final Workshop of the OSIRIS Project}, publisher = {Cottbus : Inst. f{\"u}r Bauinformatik, BTU Cottbus}, isbn = {3-934934-08-0}, language = {en} } @article{HolzHildebrandtMolkenthin, author = {Holz, Klaus-Peter and Hildebrandt, Gerald and Molkenthin, Frank}, title = {Virtual Laboratories for Projects in Environment Water}, series = {Forum der Forschung}, volume = {16}, journal = {Forum der Forschung}, number = {7}, issn = {0947-6989}, pages = {94 -- 97}, abstract = {Modern information and communication technology (ICT) enables new technical solutions to support collaboration in environmental engineering over distance. The establishment of "virtual laboratories" including application of Internet based project platforms, distributed team work and collaboration methods require new kinds of soft skills, knowledge and experience and a new "technological culture" to be generated just by doing - a task for education, training and profession in Hydro-Informatics. This is a challenge for the European dimension, where in future experts and engineers from different countries with different languages, different mentalities as well as different specialization and professional experience have to collaborate in research, teaching and practice. Training of collaborating in such new environment is the challenge of the courses HydroWeb and HydroEurope which by collaboration of 23 universities world-wide will help to establish common high quality university teaching courses and establish links between students from the involved countries. The students are solving a given environmental engineering task in distributed teams in the Internet. The students acquired in this course experience in interdisciplinary team work, net based project co-ordination and Web based reporting. They strengthened their social competence to collaborate in heterogeneous teams with members of different habits, nationalities, ages, educational backgrounds. The described experiment might be the basis to introduce Web based collaborative engineering in the regular course programme of water-environment related curricula at universities.}, language = {en} } @article{BazartserenHildebrandtHolz, author = {Bazartseren, Bunchingiv and Hildebrandt, Gerald and Holz, Klaus-Peter}, title = {Short-term water level prediction using neural networks and neuro fuzzy approach}, series = {Neurocomputing}, volume = {55}, journal = {Neurocomputing}, number = {3-4}, issn = {0925-2312}, pages = {439 -- 450}, abstract = {A comparative study on a short-term water level prediction using artificial neural networks (ANN) and neuro-fuzzy system is addressed in this paper. The performance of the traditional approaches applied for such a hydrological task can often be constrained by data availability and simplifying assumptions in the processes description. In this paper, the ANN and neuro-fuzzy approaches are used for handling the situations with scarce data, where the predictions are based on the upstream hydrological conditions only. The models have been tested on two different river reaches in Germany. Moreover, the obtained results are compared to those of linear statistical models. Both ANN and neuro-fuzzy systems have performed comparably well and accurate for the purpose, explicitly outperforming the linear statistical models for a longer prediction horizon. The trained neural networks are partly implemented on-line, as a prototype of a web-based water level predictor.}, language = {en} } @article{GautamHolzMeyer, author = {Gautam, D. K. and Holz, Klaus-Peter and Meyer, Z.}, title = {Real-Time Forecasting of Water Levels Using Adaptive Neuro-Fuzzy Systems}, series = {Archives of hydro-engineering and environmental mechanics}, volume = {48}, journal = {Archives of hydro-engineering and environmental mechanics}, number = {4}, issn = {1231-3726}, pages = {3 -- 21}, language = {en} } @article{MolkenthinHolzBrueggemannetal., author = {Molkenthin, Frank and Holz, Klaus-Peter and Br{\"u}ggemann, Bernhard Markus and Belleudy, Ph. and Josza, J. and Price, R. and Veer, P. van der}, title = {HydroWeb: 'WWW based collaborative engineering in hydroscience' - a European education experiment in the Internet}, series = {Forum der Forschung}, volume = {6}, journal = {Forum der Forschung}, number = {13}, pages = {12 -- 16}, language = {en} } @inproceedings{SchleyMejstrikHolzetal., author = {Schley, Frank and Mejstrik, M. and Holz, Klaus-Peter and Savidis, S. A.}, title = {Network Based Co-operation Platform for Geotechnical Engineering}, language = {de} } @inproceedings{Holz, author = {Holz, Klaus-Peter}, title = {Minderung von Hochwassergefahren durch Web-basierte Simulation, Kommunikation und Kooperation}, language = {de} } @inproceedings{HolzWeber, author = {Holz, Klaus-Peter and Weber, Lars}, title = {Web-based Support for Risk Reduction in Flood Prone Areas}, language = {en} } @inproceedings{BrueggemannHolz, author = {Br{\"u}ggemann, Bernhard Markus and Holz, Klaus-Peter}, title = {A Toolkit for Quadtree based adaptive Simulation Systems - Software Engineering in finite Volume Shallow Water Modeling}, language = {en} } @inproceedings{HolzChua, author = {Holz, Klaus-Peter and Chua, Lloyd H. C.}, title = {Hybrid River Modeling Using Neural Network and FE-Method}, language = {en} } @inproceedings{HolzHildebrandtNeltchinova, author = {Holz, Klaus-Peter and Hildebrandt, Gerald and Neltchinova, T.}, title = {Virtual Laboratories for Collaborative Working in Environment Water}, series = {CompSysTech '04, Proceedings of the 5th international conference on Computer systems and technologies}, booktitle = {CompSysTech '04, Proceedings of the 5th international conference on Computer systems and technologies}, publisher = {New York [u.a.]}, address = {ACM}, isbn = {954-9641-38-4}, pages = {6}, language = {en} } @inproceedings{HolzSchley, author = {Holz, Klaus-Peter and Schley, Frank}, title = {ICT-Support for Management of Emergency Situations in Flood and Geotechnical Engineering}, series = {Computing in civil engineering, proceedings of the 2005 ASCE International Conference on Computing in Civil Engineering, July 12 - 15, 2005, Cancun, Mexico}, booktitle = {Computing in civil engineering, proceedings of the 2005 ASCE International Conference on Computing in Civil Engineering, July 12 - 15, 2005, Cancun, Mexico}, editor = {Soibelman, Lucio}, publisher = {American Society of Civil Engineers}, address = {Reston, Va.}, isbn = {0-7844-0794-0}, language = {en} } @inproceedings{MolkenthinHolz, author = {Molkenthin, Frank and Holz, Klaus-Peter}, title = {Generalised Information Systems for Physical State Variables in Hydroscience}, series = {Water engineering for the future, Vol. 1., Abstracts of XXXI IAHR Congress, Coex, Seoul, September 11 - 16, 2005}, booktitle = {Water engineering for the future, Vol. 1., Abstracts of XXXI IAHR Congress, Coex, Seoul, September 11 - 16, 2005}, editor = {Jun, Byong-Ho}, publisher = {Korea Water Resources Association}, address = {Seoul}, isbn = {89-87898-25-3}, pages = {S. 107}, language = {en} } @inproceedings{SchleyHolz, author = {Schley, Frank and Holz, Klaus-Peter}, title = {Multilevel Information Management in Geotechnical Engineering}, series = {CIB W78 22nd Conference on Information Technology in Construction, July 19 - 21, 2005, the Westin Bellevue, Dresden, Germany}, booktitle = {CIB W78 22nd Conference on Information Technology in Construction, July 19 - 21, 2005, the Westin Bellevue, Dresden, Germany}, editor = {Scherer, Raimar}, publisher = {Inst. for Construction Informatics, Techn. Univ.}, address = {Dresden}, isbn = {3-86005-478-3}, pages = {329 -- 333}, language = {en} } @inproceedings{BrueggemannHolz, author = {Br{\"u}ggemann, Bernhard Markus and Holz, Klaus-Peter}, title = {Quadtree based Hydroinformatics Simulation System - A Component-Oriented Finite Volume Toolkit Water Equations}, language = {en} } @inproceedings{HildebrandtHolz, author = {Hildebrandt, Gerald and Holz, Klaus-Peter}, title = {A Service Oriented Architecture for Web based Collaboration in Hydr Engineering Projects}, language = {en} } @inproceedings{HolzHildebrandt, author = {Holz, Klaus-Peter and Hildebrandt, Gerald}, title = {Internet basierte Werkzeuge f{\"u}r das Hochwassermanagement bei dezentraler Datenverantwortung}, abstract = {Geografische Informationssysteme in der Wasserwirtschaft}, language = {de} } @inproceedings{BazartserenHolz, author = {Bazartseren, Bunchingiv and Holz, Klaus-Peter}, title = {Short Term Prediction of Beach Morphology Using Artifical Neural Networks}, series = {Water engineering for the future, Vol. 1., Abstracts of XXXI IAHR Congress, Coex, Seoul, September 11 - 16, 2005}, booktitle = {Water engineering for the future, Vol. 1., Abstracts of XXXI IAHR Congress, Coex, Seoul, September 11 - 16, 2005}, editor = {Jun, Byong-Ho}, publisher = {Korea Water Resources Association}, address = {Seoul}, isbn = {89-87898-25-3}, pages = {S. 112}, language = {en} } @misc{HolzChua, author = {Holz, Klaus-Peter and Chua, Lloyd H. C.}, title = {Hybrid Neural Network - Finite Element River Flow Model}, series = {Journal of Hydraulic Engineering}, volume = {131}, journal = {Journal of Hydraulic Engineering}, number = {1}, issn = {0733-9429}, pages = {52 -- 59}, language = {en} } @incollection{BazartserenHolz, author = {Bazartseren, Bunchingiv and Holz, Klaus-Peter}, title = {Beach profile simulation under sediment transport at the shore-lines of Baltic Sea by neural networks and discrete models}, language = {en} } @article{HildebrandtWeberHolz, author = {Hildebrandt, Gerald and Weber, Lars and Holz, Klaus-Peter}, title = {Concept for a Web-based Information System for Flood Management}, language = {en} } @inproceedings{SchleyBrueggemannHolzetal., author = {Schley, Frank and Br{\"u}ggemann, Bernhard Markus and Holz, Klaus-Peter and Rackwitz, F. and Savidis, S. A.}, title = {Multilevel Information Management between diverse Domain Models in Geotechnical Engineering}, series = {Building on IT, XIth International Conference on Computing in Civil and Building Engineering, Joint International Conference on Computing and Decision Making in Civil and Building Engineering, Montreal, Canada, June 14 - 16, 2006}, booktitle = {Building on IT, XIth International Conference on Computing in Civil and Building Engineering, Joint International Conference on Computing and Decision Making in Civil and Building Engineering, Montreal, Canada, June 14 - 16, 2006}, editor = {Rivard, Hugues}, address = {Montreal}, isbn = {2-921145-57-X}, pages = {10}, language = {en} } @inproceedings{WeberHolz, author = {Weber, Lars and Holz, Klaus-Peter}, title = {ANN Representation of FE for Groundwater Flow Simulation}, series = {Building on IT, XIth International Conference on Computing in Civil and Building Engineering, Joint International Conference on Computing and Decision Making in Civil and Building Engineering, Montreal, Canada, June 14 - 16}, booktitle = {Building on IT, XIth International Conference on Computing in Civil and Building Engineering, Joint International Conference on Computing and Decision Making in Civil and Building Engineering, Montreal, Canada, June 14 - 16}, editor = {Rivard, Hugues}, address = {Montreal}, isbn = {2-921145-57-X}, pages = {106}, language = {de} } @incollection{HolzSchleySavidisetal., author = {Holz, Klaus-Peter and Schley, Frank and Savidis, S. A. and Rackwitz, F. and Mejstrik, M.}, title = {Ber{\"u}cksichtigung von Ausnahmef{\"a}llen bei der kooperativen Bearbeitung von Projekten des konstruktiven Tiefbaus}, series = {Vernetzt-kooperative Planungsprozesse im Konstruktiven Ingenieurbau}, booktitle = {Vernetzt-kooperative Planungsprozesse im Konstruktiven Ingenieurbau}, editor = {R{\"u}ppel, Uwe}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-3-540-68102-1}, pages = {25 -- 26}, language = {de} }