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Selection: Weber:E [14 articles] 

Publications by author Weber:E.
 

Lexicographic optimisation for water resources planning: the case of Lake Verbano, Italy

  
In Proceedings of the iEMSs First Biennial Meeting: Integrated Assessment and Decision Support (2002), pp. 235-240

Abstract

Lake Verbano is a natural lake used as multipurpose reservoir. The lake supplies water for irrigation and hydropower generation to downstream users, while flood controls are applied to protect the lake shores and the downstream populations on the Ticino river, and environmental preservation constraints must be respected. All these objectives are conflicting and they have different priorities, as stated by the Italian regulation on water use. This paper explores a methodology aimed at solving this conflict. The stakeholders involvement in the ...

 

Biological Flora of the British Isles: Robinia pseudoacacia

  
Journal of Ecology, Vol. 101, No. 6. (November 2013), pp. 1623-1640, https://doi.org/10.1111/1365-2745.12162

Abstract

This account presents information on all aspects of the biology of Robinia pseudoacacia L. that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of the British Isles: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, and history and conservation. Robinia pseudoacacia, false acacia or black locust, is a deciduous, broad-leaved tree ...

 

IWRM in the Adda basin, Northern Italy

  
Geophysical Research Abstracts In European Geosciences Union (EGU) General Assembly 2013, Vol. 9 (2007), 08901

Abstract

The Adda river basin, in Northern Italy, is a 6.500 km2 wide basin which includes the Como Lake. The lake has been used as a regulated multipurpose reservoir for sixty years and its management has been primarily aimed at the satisfaction of downstream water demands for irrigation and hydropower generation, as well as at the control of floods, both on the lake shores and on the outflowing Adda river. Due to the changing legal and hydrological conditions the conflict between these ...

 

Set-valued control laws in minmax control problem

  
In Modeling and control in environmental issues (2002)

Abstract

The aim of this paper is to find a set-valued control policy and a set of initial states that are solutions of a minmax optimal control problem. The control problem is applied to a periodic discrete-time dynamic system, affected by disturbances characterized by a set-membership description. The functional to be minimized is the maximum cost per step that may occur under the worst combination of disturbances. ...

 

On-line design of water reservoir policies based on inflow prediction

  
IFAC-PapersOnLine In Proceedings of the 17th IFAC World Congress, Vol. 41, No. 2. (06 July 2008), pp. 14540-14545, https://doi.org/10.3182/20080706-5-kr-1001.02463

Abstract

Stochastic Dynamic Programming (SDP) is the method most extensively adopted to design release policies for water reservoir networks. However, it suffers of the well known "curse of dimensionality", which actually limits its applicability to small reservoir networks. In this paper we present an on-line approach to policy design that not only constitutes a viable alternative to overcome the SDP limits, but can also be used with an inflow predictor to improve the performance of SDPbased off-line policies. This latter possibility is ...

 

Choosing among infinite alternatives

  
In Integrated and participatory water resources management theory (2007), pp. 223-242

Abstract

In Chapter 7 we understood that, even when the Decision Maker (DM) is acting in conditions of full rationality, the design of the alternatives poses three difficulties: the presence of infinite alternatives; the presence of uncertainty produced by random disturbances; and the presence of recursive decisions. In this chapter, we begin to describe the tools to overcome these difficulties by analysing the Design Problem in the simplest of cases: the case in which the actions being considered are all planning actions ...

 

Integrated and participatory water resources management - Theory

  
(2007)

Abstract

Covering the more recent advances in Modelling, Planning, Management and Negotiations for Integrated Water Resource Management, this text brings together knowledge and concepts from Hydrology, System Analysis, Control Theory, Conflict Resolution, and Decision and Negotiation Theory. Without compromising on mathematical rigour, the book maintains a fine line between theory and application, methodology and tools, avoiding getting locked into excessively theoretical and formal development of the issues discussed. The non-technical aspects of water resource systems (such as societal, political and legal concerns) ...

 

Public understanding of climate change in the United States.

  
American Psychologist, Vol. 66, No. 4. (2011), pp. 315-328, https://doi.org/10.1037/a0023253

Abstract

This article considers scientific and public understandings of climate change and addresses the following question: Why is it that while scientific evidence has accumulated to document global climate change and scientific opinion has solidified about its existence and causes, U.S. public opinion has not and has instead become more polarized? Our review supports a constructivist account of human judgment. Public understanding is affected by the inherent difficulty of understanding climate change, the mismatch between people's usual modes of understanding and the ...

 

Neuro-dynamic programming for designing water reservoir network management policies

  
Control Engineering Practice, Vol. 15, No. 8. (August 2007), pp. 1031-1038, https://doi.org/10.1016/j.conengprac.2006.02.011

Abstract

Stochastic dynamic programming (SDP) can improve the management of a multipurpose water reservoir by generating management policies which are efficient with respect to the management objectives (flood protection, water supply for irrigation, hydropower generation, etc.). The improvement in efficiency is even more remarkable for networks of reservoirs. Unfortunately, SDP is affected by the well-known ‘curse of dimensionality’, i.e. computational time and computer memory occupation increase exponentially with the dimension of the problem (number of reservoirs), and the problem rapidly becomes intractable. ...

 

Participatory decision making in reservoir planning

  
In 1st biennial meeting of the IEMSS (2002), pp. 34-44

Abstract

The technologies and methods for integrated planning and management of water resource systems have matured considerably over the past decades. However, relatively few of them have been actually and regularly applied in real world decisional processes. We feel this is essentially due to a general lack of engagement of stakeholders and decision makers at every stage of the decisional process. Innovative methodologies and tools to improve participation are presented, with focus on water reservoir systems. ...

References

  1. Anthony, R. Planning and controlsystems: a framework for analysis. PhD thesis, Harvard University Graduate School of Business Administration, 1965.
  2. Aufiero, A., R. Soncini-Sessa, and E. Weber. Setvalued control laws in minmax control problem. In IFAC Workshop Modelling and Control in Environmental Issues, August 22-23, Yokohama, Japan, 2001a. Elsevier.
  3. Aufiero, A., R. Soncini-Sessa, and E. Weber. Setvalued control laws in TEV-DC control problem. Technical Report 2001.60, Dip. Elettronica e Informazione, Politecnico di
 

Neuro-Dynamic Programming for the efficient integrated water resources management

  
In Modelling and control for participatory planning and managing water systems (30 September 2004)

Abstract

Design of policies within the integrated water resources management (IWRM) paradigm demands to take into account multiple objectives such as flood protection, water supply for hydropower generation, irrigation and urban use, imposition of minimum environmental flows, etc.. Finding efficient water management policies is a demanding task and Stochastic Dynamic Programming (SDP) can provide an effective solution methodology. The efficiency boost is even more pronounced when the scale of integration of the water management problem spans networks of water resources (i.e. sets of interconnected reservoirs, or wide-area ...

 

Pianificazione delle risorse idriche a scala di bacino: il caso del Fiume Adda

  
In Ricerca ed innovazione nell'idraulica agraria e nelle sistemazioni idraulico-forestali (2007), pp. 199-202
 

A selective improvement technique for fastening neuro-dynamic programming in water resources network management

  
IFAC-PapersOnLine In Proceedings of the 16th IFAC World Congress, Vol. 38, No. 1. (04 July 2005), pp. 7-12, https://doi.org/10.3182/20050703-6-cz-1902.02172
edited by Pavel Zítek

Abstract

An approach to the integrated water resources management based on Neuro-Dynamic Programming (NDP) with an improved technique for fastening its Artificial Neural Network (ANN) training phase will be presented. When dealing with networks of water resources, Stochastic Dynamic Programming provides an effective solution methodology but suffers from the so-called "curse of dimensionality", that rapidly leads to the problem intractability. NDP can sensibly mitigate this drawback by approximating the solution with ANNs. However in the real world applications NDP shows to be ...

References

  1. Archibald, T.W., McKinnon, K.I.M., Thomas, L.C., 1997. An aggregate stochastic dynamic programming model of multireservoir systems. Water Resour. Res. 33, 333-340.
  2. Bellman, R.E., Dreyfus, S.E., 1959. Functional approximations and dynamic programming. Mathematical Tables and Other Aids to Computation 13, 247-251.
  3. Bellman, R.E., Kabala, R., Kotkin, B., 1963. Polynomial approximation – a new computational technique in dynamic programming. Mathematical Tables and Other Aids to Computation 17, 155–161.
  4. Bertsekas, D.P.,
 

Neuro-dynamic programming for the efficient management of reservoir networks

  
In Proceedings of MODSIM 2001, International Congress on Modelling and Simulation, Vol. 4 (December 2001), pp. 1949-1954, https://doi.org/10.5281/ZENODO.7481

Abstract

[:Significance (Ed.)] This article introduced in 2001 one of the very first successful applications of advanced machine learning techniques to solve complex, multicriteria management problems in water resources dealing with networks of water reservoirs. It applied approximate dynamic programming (here, neuro-dynamic programming - whose approximation of stochastic dynamic programming relies on artificial neural networks) to the integrated water resources management. The methodology is general enough to be potentially useful in other problems of integrated natural resources modelling and management (INRMM). [::Machine learning in ...

References

  1. Bellman, R.E., Dreyfus, S.E., 1959. Functional approximations and dynamic programming. Mathematical Tables and Other Aids to Computation, 13, pp. 247–251.
  2. Bertsekas, D.P., Tsitsiklis, J.N., 1996. Neuro-Dynamic Programming. Athena Scientific, Belmont, MA. INRMM-MiD:206209 .
  3. Georgakakos, A.P., Marks, D.H., 1987. A new method for real-time operation of reservoir systems. Water Resour. Res., 23(7), pp. 1376–1390.
  4. Georgakakos, A.P., 1989. Extended Linear Quadratic Gaussian Control for the real-time operation of reservoir
This page of the database may be cited as:
Integrated Natural Resources Modelling and Management - Meta-information Database. http://mfkp.org/INRMM/author/Weber:E

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