Roussos Dimitrakopoulos
RetourCahiers du GERAD
91 résultats — page 1 de 5
Decoupling spatial pattern and its movement via complex factorization over orthogonal filter pairs
Variations between related images (e.g. due to motions) can caused by different independent factors. A qualified representation can decouple the underlying...
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Short-term production planning in mining complexes involves a series of decisions concerning activities and processes to accomplish the long-term planning ...
référence BibTeXA simultaneous stochastic optimization framework for selecting additional infill drilling locations
An innovative simultaneous stochastic optimization approach is proposed that combines actor-critic reinforcement learning and stochastic mathematical progr...
référence BibTeXLearning to schedule heuristics for the simultaneous stochastic optimization of mining complexes
The simultaneous stochastic optimization of mining complexes (SSOMC) is a large-scale stochastic combinatorial optimization problem that simultaneously manag...
référence BibTeXAdaptive simultaneous stochastic optimization of mining complexes: Where is the value coming from?
This paper aims to identify the sources of value created in the strategic plan of a mining complex when the adaptive simultaneous stochastic optimization of ...
référence BibTeXStochastic stope design optimization under grade uncertainty and dynamic development costs
Stope design optimization defines mineable three-dimensional material volumes to be extracted from a mineral deposit, aiming to maximize cashflows subject ...
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The geometallurgical models that predicting the throughput/comminution performance of the a processing plant often rely on rock hardness models, which are ba...
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A new linear model is presented herein to optimize strategic production scheduling of an open pit mine with multiple processing streams while accounting for...
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Geostatistically simulated representations of mineral deposits are used for resource/reserve assessments, mine design and production planning, project evalua...
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Industrial mining complexes can be optimized using simultaneous stochastic optimization (SSO), which manages the risks associated with meeting production tar...
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This paper presents a new truck dispatching policy approach that is adaptive given different mining complex configurations in order to deliver supply materia...
référence BibTeXTraining image free high-order stochastic simulation based on aggregated kernel statistics
A training-image free, high-order sequential simulation method is proposed herein, which is based on the efficient inference of high-order spatial statistics...
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This article presents a novel stochastic optimization model that simultaneously optimizes the short-term extraction sequence, shovel relocation, scheduling o...
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An innovative strategic mine planning approach is applied to a multi-mine and multi-process gold mining complex that simultaneously considers feasible capita...
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Mineral value chains or mining complexes involve mining, processing, stockpiling, waste management, and transportation activities. An integrated stochastic...
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With sufficient layers, enough training data, enough time, and often a custom tailored architecture, modern deep learning methods can be extremely successf...
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A new mathematical model for stochastic short-term optimization of mining complexes is presented that simultaneously optimizes the short-term extraction sequ...
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This paper presents the application of adaptive simultaneous stochastic optimization with a representative branching framework to generate the strategic pl...
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Le problème de planification de la production des mines à ciel ouvert vise à optimiser la valeur actuelle nette d'un projet minier. Plusieurs méthodes de sol...
référence BibTeXA new computational model of high-order stochastic simulation based on spatial Legendre moments
Multiple-point simulations have been introduced over the past decade to overcome the limitations of second-order stochastic simulations in dealing with geolo...
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