• Article  

      Bid mark-up selection using artificial neural networks and an entropy metric 

      Christodoulou, Symeon E. (2010)
      The purpose of the paper is to perform bid mark-up optimisation through the use of artificial neural networks (ANN) and a metric of the selected bid mark-up's derived entropy. The scope is to provide an alternative, ...
    • Article  

      A bid-unbalancing method for lowering a contractor's financial risk 

      Christodoulou, Symeon E. (2008)
      A method is presented for unbalancing bids and optimizing the allocation of overall project profits to individual activities by considering the financial parameters of a project (bid mark-up and projected cash flow), in ...
    • Article  

      Capacity of the class of MIMO channels with incomplete CDI - Properties of mutual information for a class of channels 

      Charalambous, Charalambos D.; Denic, S. Z.; Constantinou, C. (2009)
      This paper is concerned with multiple-input multiple-output (MIMO) wireless channel capacity, when the probability distribution of the channel matrix p(H) is not completely known to the transmitter and the receiver. The ...
    • Conference Object  

      Characterization of the Optimal Disturbance Attenuation for Nonlinear Stochastic Uncertain Systems 

      Charalambous, Charalambos D.; Rezaei, F.; Djouadi, S. M. (2003)
      This paper is concerned with an abstract formulation of stochastic optimal control systems, in which uncertainty is described by a relative entropy constraint between the nominal measure and the uncertain measure, while ...
    • Article  

      Disorder considerations in resource-constrained scheduling 

      Christodoulou, Symeon E.; Ellinas, Georgios N.; Aslani, Pooyan
      A method is presented for allocating resources to construction activities and for scheduling construction projects under resource constraints by considering the effects that such resource limitations may have on the tendency ...
    • Article  

      Disorder considerations in resource-constrained scheduling 

      Christodoulou, Symeon E.; Ellinas, Georgios N.; Aslani, Pooyan (2009)
      A method is presented for allocating resources to construction activities and for scheduling construction projects under resource constraints by considering the effects that such resource limitations may have on the tendency ...
    • Article  

      Entropy-Based Heuristic for Resource-Constrained Project Scheduling 

      Christodoulou, Symeon E. (2016)
      A heuristic is presented for the resource-constrained project scheduling problem (RCPSP), based on maximizing the entropy of the project's resource histogram. The proposed RCPSP algorithm makes use of the general theory ...
    • Article  

      Entropy-based scheduling of resource-constrained construction projects 

      Christodoulou, Symeon E.; Ellinas, Georgios N.; Aslani, Pooyan (2009)
      A method is presented for resource allocation and scheduling of resource-constrained projects by use of a measure of the projects' entropy. The entropy, as a measure of the degree of disorder in a system, is an indicator ...
    • Article  

      Entropy-based scheduling of resource-constrained construction projects 

      Christodoulou, Symeon E.; Ellinas, Georgios N.; Aslani, Pooyan (2009)
      A method is presented for resource allocation and scheduling of resource-constrained projects by use of a measure of the projects' entropy. The entropy, as a measure of the degree of disorder in a system, is an indicator ...
    • Article  

      Entropy-Based Sensor Placement Optimization for Waterloss Detection in Water Distribution Networks 

      Christodoulou, Symeon E.; Gagatsis, Anastasis; Xanthos, Savvas; Kranioti, Sofia; Agathokleous, Agathoklis; Fragiadakis, M. (2013)
      The work presented herein addresses the problem of sensor placement optimization in urban water distribution networks by use of an entropy-based approach, for the purpose of efficient and economically viable waterloss ...
    • Article  

      Large eddy simulation of thermocline flow phenomena and mixing during discharging of an initially homogeneous or stratified storage tank 

      Kaloudis, E.; Grigoriadis, D. G. E.; Papanicolaou, E.; Panidis, T. (2014)
      This study investigates numerically the flow phenomena developing in the discharging process of a rectangular water tank used for thermal energy storage and how these affect the thermal mixing and the associated energy ...
    • Conference Object  

      Minimizing outage probability for a class of MIMO channels 

      Charalambous, Charalambos D.; Ioannou, I. (2009)
      In this paper we investigate the outage probability of Multiple-Input Multiple-Output (MIMO) channels, when the probability distribution of the channel gains is not completely known to the transmitter and receiver. The ...
    • Article  

      Minimum relative entropy criterion for damage detection and location 

      Kyprianou, Andreas; Mares, C.; Charalambous, Charalambos D.; Mottershead, J. E. (2007)
      Relative entropy has been employed, as an alternative to other regularization methods, in solving ill-conditioned linear inverse problems. Damage detection when treated as structural modification imparted by the damage ...
    • Article  

      Minimum relative entropy criterion for damage detection and location 

      Kyprianou, Andreas; Mares, C.; Charalambous, Charalambos D.; Mottershead, J. E. (2007)
      Relative entropy has been employed, as an alternative to other regularization methods, in solving ill-conditioned linear inverse problems. Damage detection when treated as structural modification imparted by the damage ...
    • Article  

      Minimum relative entropy criterion for damage detection and location 

      Kyprianou, Andreas; Mares, C.; Charalambous, C. D.; Mottershead, J. E. (2007)
      Relative entropy has been employed, as an alternative to other regularization methods, in solving ill-conditioned linear inverse problems. Damage detection when treated as structural modification imparted by the damage ...
    • Article  

      Numerical simulations of constant-influx gravity currents in confined spaces: Application to thermal storage tanks 

      Kaloudis, E.; Grigoriadis, D. G. E.; Papanicolaou, E. (2016)
      This study uses Computational Fluid Dynamics (CFD) to investigate numerically the flow phenomena in the intrusion region of a thermal storage water tank during discharge. The early times of the discharging process have ...
    • Conference Object  

      Optimization of nonlinear stochastic uncertain relaxed controlled systems: Entropy rate functional and robustness 

      Rezaei, F.; Charalambous, C. D.; Kyprianou, Andreas (Affiliation: Sch. of Info. Technol. and Eng., University of Ottawa, 800 King Edward Ave., Ottawa, Ont. K1N 6N5, CanadaAffiliation: Sch. of Info. Technol. and Eng., University of Ottawa, 161 Louis Pasteur, A519, Ottawa, Ont. K1N 6N5, CanadaAffiliation: Electrical Engineering Department, University of Cyprus, 75 Kallipoleos Avenue, Nicosia, CyprusAffiliation: Mechanical Engineering Department, University of Cyprus, 75 Kallipoleos Avenue, Nicosia, CyprusCorrespondence Address: Rezaei, F.Sch. of Info. Technol. and Eng., University of Ottawa, 800 King Edward Ave., Ottawa, Ont. K1N 6N5, Canadaemail: frezaei@site.uottawa.ca, 2004)
      This paper is concerned with nonlinear stochastic uncertain relaxed controlled difussions, in which the pay-off is described by the relative entropy between the nominal measure and the uncertain measure, when the uncertain ...
    • Conference Object  

      Optimization of nonlinear stochastic uncertain relaxed controlled systems: Entropy rate functional and robustness 

      Rezaei, F.; Charalambous, Charalambos D.; Kyprianou, Andreas (Affiliation: Sch. of Info. Technol. and Eng., University of Ottawa, 800 King Edward Ave., Ottawa, Ont. K1N 6N5, CanadaAffiliation: Sch. of Info. Technol. and Eng., University of Ottawa, 161 Louis Pasteur, A519, Ottawa, Ont. K1N 6N5, CanadaAffiliation: Electrical Engineering Department, University of Cyprus, 75 Kallipoleos Avenue, Nicosia, CyprusAffiliation: Mechanical Engineering Department, University of Cyprus, 75 Kallipoleos Avenue, Nicosia, CyprusCorrespondence Address: Rezaei, F.Sch. of Info. Technol. and Eng., University of Ottawa, 800 King Edward Ave., Ottawa, Ont. K1N 6N5, Canadaemail: frezaei@site.uottawa.ca, 2004)
      This paper is concerned with nonlinear stochastic uncertain relaxed controlled difussions, in which the pay-off is described by the relative entropy between the nominal measure and the uncertain measure, when the uncertain ...
    • Conference Object  

      Optimization of nonlinear stochastic uncertain relaxed controlled systems: Entropy rate functional and robustness 

      Rezaei, F.; Charalambous, Charalambos D.; Kyprianou, Andreas (2004)
      This paper is concerned with nonlinear stochastic uncertain relaxed controlled difussions, in which the pay-off is described by the relative entropy between the nominal measure and the uncertain measure, when the uncertain ...
    • Conference Object  

      Optimization of Stochastic Uncertain Systems: Large Deviations and Robustness 

      Charalambous, Charalambos D.; Rezaei, F. (2003)
      This paper is concerned with an abstract formulation of stochastic uncertain control systems, in which the pay-off is described by the relative entropy between the nominal measure and the uncertain measure, while the ...