Country: Spain

Found 250 papers in total
On queueing systems with failures and several types of input flows
On queueing systems with failures and several types of input flows
1999,
In this paper two models of queueing systems with failures and several types of input...
The infinite server queue and heuristic approximations to the multi-server queue with and without retrials
The infinite server queue and heuristic approximations to the multi-server queue with and without retrials
1999,
In this paper, properties of the time-dependent state probabilities of the M t...
A generalized additive, categorical model in data envelopment analysis
A generalized additive, categorical model in data envelopment analysis
2000,
This paper considers efficiency of a Decision Making Unit (DMU) in Data Envelopment...
0–1 equivalent model representations for air traffic management
0–1 equivalent model representations for air traffic management
1998,
We present two equivalent representations of a 0–1 model for the Air Traffic...
A few practical problems on the application of origin–destination estimation in motorway networks
A few practical problems on the application of origin–destination estimation in motorway networks
1997,
In the recent years OD-estimation has become an accepted tool for traffic analysis and...
Assessing the efficiency of rapid transit configurations
Assessing the efficiency of rapid transit configurations
1997,
Eight basic transit network configurations are analyzed with respect to two measures:...
A methodology for modelling travel distances by bias estimation
A methodology for modelling travel distances by bias estimation
1998,
Round norms τ l p , p ∈ (1,2] and block norms have been utilised for...
Traffic queue estimation
Traffic queue estimation
1997,
This paper deals with the urban traffic queue modelling and estimation. A general...
A generalized Malmquist productivity index
A generalized Malmquist productivity index
1999,
In 1953 Sten Malmquist, a Swedish economist and statistician, published in Trabajos de...
Solving large set covering problems for crew scheduling
Solving large set covering problems for crew scheduling
1997,
This paper presents a computationally effective heuristic method which produces...
Modelling and solving the production rate variation problem (PRVP)
Modelling and solving the production rate variation problem (PRVP)
1997,
Several families of objective functions for the PRV problem (minimizing the variation...
Optimization of multiweighing packing proceedings
Optimization of multiweighing packing proceedings
1998,
In this paper we study the variability reduction gain that results from the use of...
Reliability of a k-out-of-n system with repair and retrial of failed units
Reliability of a k-out-of-n system with repair and retrial of failed units
1999,
We consider a k -out-of- n system with repair. Life times of components are...
Queuing analysis of a sequential recognizer of patterns
Queuing analysis of a sequential recognizer of patterns
1998,
A recognition procedure is modelled as a queuing problem. We obtain first the...
A tabu search algorithm for the open shop problem
A tabu search algorithm for the open shop problem
1997,
In this paper we consider the minimum makespan Open Shop problem without preemption....
Note on an improved branch-and-bound algorithm to solve n/m/P/Fmax problems
Note on an improved branch-and-bound algorithm to solve n/m/P/Fmax problems
1999,
The LOMNICKI algorithm for n/m/P/F max flow-shop problems is unsuitable for large...
A real delivery problem dealt with Monte Carlo techniques
A real delivery problem dealt with Monte Carlo techniques
2000,
In this paper we use Monte Carlo techniques to deal with a real world delivery problem...
Multicommodity long-term hydrogeneration optimization with capacity and energy constraints
Multicommodity long-term hydrogeneration optimization with capacity and energy constraints
2000,
The work presented deals with long-term hydrogeneration optimization in integrated...
On the optimal control of stochastic linear systems with contaminated partial observations
On the optimal control of stochastic linear systems with contaminated partial observations
1997,
Partial information for stochastic control systems with state equations linear in the...
Towards a constructive approach to act-conditional subjective expected utility models
Towards a constructive approach to act-conditional subjective expected utility models
1997,
In structuring a decision problem under uncertainty, the uncertain environment may be...
Linearity criterion for the selection of an optimal tree
Linearity criterion for the selection of an optimal tree
1997,
The aim of this paper is to present a method for selecting the optimal tree among the...
Probabilistic order level system with lead time when delay in payments are permissible
Probabilistic order level system with lead time when delay in payments are permissible
1997,
The probabilistic order level inventory model with lead time when shortages are...
Analytical solution for a class of learning by doing models with multiplicative uncertainty
Analytical solution for a class of learning by doing models with multiplicative uncertainty
1999,
We find the closed form optimal solution for a class of learning by doing models,...
A comparison of algorithm RS with algorithm OPTSOL70
A comparison of algorithm RS with algorithm OPTSOL70
1997,
In a very recent paper we proposed a new lagrangian surrogate heuristic, called RS,...
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