Now showing items 1-20 of 30

    • A new optimal electricity market bid model solved through perspective cuts 

      Corchero García, Cristina; Mijangos Fernández, Eugenio; Heredia, F.-Javier (Francisco Javier) (Springer, 2011-11)
      Article
      Restricted access - publisher's policy
      On current electricity markets the electrical utilities are faced with very sophisticated decision making problems under uncertainty. Moreover, when focusing in the short-term management, generation companies must include ...
    • A unified approach for measuring precision and generalization based on anti-alignments 

      Dongen, Boudewijn van; Carmona Vargas, Josep; Chatain, Thomas (Springer, 2016)
      Conference report
      Open Access
      The holy grail in process mining is an algorithm that, given an event log, produces fitting, precise, properly generalizing and simple process models. While there is consensus on the existence of solid metrics for fitness ...
    • Algoritmos para la asignación de pasajeros en redes de transporte público 

      Rosell Camps, Francisca (Universitat Politècnica de Catalunya, 2014-06)
      Master thesis
      Restricted access - author's decision
      Los modelos para la asignación de pasajeros son una magnífica herramienta para facilitar la planificación de las redes de transporte público y ayudan en la predicción de la utilización de las diferentes líneas por parte ...
    • Analyzing SPSA approaches to solve the non-linear non-differentiable problems arising in the assisted calibration of traffic simulation models 

      Ros Roca, Xavier (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2017-01)
      Master thesis
      Open Access
      Mathematical and simulation models of systems lay at the core of decision support systems, and their role become more critical as more complex is the system object of decision. The decision process usually encompasses the ...
    • Building optisim, optimizador NZEB 

      Fonseca Casas, Pau; Colls, Màxim; Casanovas Garcia, Josep; Fonseca Casas, Antoni; Garrido Soriano, Núria (2012)
      Conference report
      Open Access
      La simulación de la demanda energética de un edificio es una tarea compleja debido principalmente a dos factores clave. En primer lugar, es necesario definir la física y las complejas relaciones entre todos los elementos ...
    • Caracterització de formulacions fortes del problema Unit Commitment 

      Escandell Planells, Jordan (Universitat Politècnica de Catalunya, 2017-07)
      Bachelor thesis
      Open Access
      El problema del unit commitment (UC) és un dels problemes combinatoris de major rellevància en l'aplicació de l'optimització matemàtica als sistemes d'energia i mercats elèctrics, essent fonamental per a la resolució ...
    • Connect the dot: computing feed-links for network extension 

      Speckmann, Bettina; Silveira, Rodrigo Ignacio; Aronov, Boris; Buchin, Kevin; Buchin, Maike; Jansen, Bart; De Jong, Tom; Kreveld, Marc van; Loffler, Maarten; Luo, Jun (2011-12-20)
      Article
      Open Access
      Road network analysis can require distance from points that are not on the network themselves. We study the algorithmic problem of connecting a point inside a face (region) of the road network to its boundary while ...
    • Development of heuristic methods for solving detection layout models 

      Valdivia García, Ana (Universitat Politècnica de Catalunya, 2014-07)
      Bachelor thesis
      Restricted access - author's decision
      The Information and Communications Technologies penetration in the transport sector has led to the emergence of new mechanisms for attracting trac data. The importance of nding the best location for these mechanisms into ...
    • Edge-partitioning regular graphs for ring traffic grooming with a priori placement od the ADMs 

      Muñoz López, Francisco Javier; Zhentao, Li; Sau Valls, Ignasi (2011)
      Article
      Open Access
      We study the following graph partitioning problem: Given two positive integers C and Δ, find the least integer M(C,Δ) such that the edges of any graph with maximum degree at most Δ can be partitioned into subgraphs with ...
    • Estudi de la cohort de pacients d'Insuficiència Cardíaca tractats amb Teràpia de Resincronització a l'Hospital Clínic de Barcelona 

      Borràs Amoraga, Roger (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2018-01)
      Master thesis
      Restricted access - author's decision
      En aquest projecte, estudiarem una cohort de pacients amb Teràpia de Resincronització Cardíaca (TRC). Els pacients de resincronització cardíca són una tipologia de pacients que pateixen mala sincronització en el funcionament ...
    • Flow computations on imprecise terrains 

      Driemel, Anne; Haverkort, Herman; Löffler, Maarten; Silveira, Rodrigo Ignacio (Springer Verlag, 2011)
      Conference report
      Restricted access - confidentiality agreement
      We study water flow computation on imprecise terrains. We consider two approaches to modeling flow on a terrain: one where water flows across the surface of a polyhedral terrain in the direction of steepest descent, and ...
    • ICT based estimation of time-dependent origin-destination matrices 

      Barceló Bugeda, Jaime; Montero Mercadé, Lídia; Marqués, Laura; Carmona Bautista, Carlos (2011)
      Conference report
      Open Access
      Time-Dependent Origin-Destination (OD) matrices are a key input to Dynamic Traffic Models, microscopic and mesoscopic traffic simulators are relevant examples of such models, traditionally used to assist in the design and ...
    • Implementation of a Simulation Model for Inventory Level in Multi-Echelon Supply Chains 

      Oliveres Luna, Patrícia (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2019-06)
      Master thesis
      Restricted access - author's decision
      The objective of this paper was to implement an inventory level simulation model in order to reproduce the flow of inventory in any supply chain. The model we have created accepts any configuration of supply chain and is ...
    • Interdiction optimization approach to forest fuel treatment planning 

      Jiménez Piqueras, Celia (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2019-10)
      Master thesis
      Restricted access - author's decision
      In this master s thesis, it is presented the problem of mitigating the damage caused in a landscape by a wildfire. Specifically, in the problem, wildfire managers aim to minimize the impact of a worst-case wildfire on the ...
    • Learning agent in heuristic architecture optimization 

      Abelló Gàllego, Clara (Universitat Politècnica de Catalunya, 2015-02)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Cornell University. Sibley School of Mechanical and Aerospace Engineering
      One of the main problems of current system design and architecture tools is the communication between the tool and the user and vice-versa. This work describes an on-going effort to improve that communication by incorporating ...
    • Minimizando el coste de operación entre centros de procesamiento de datos federados desde una aproximación estocástica 

      León León, Jorge (Universitat Politècnica de Catalunya, 2014-01)
      Master thesis
      Open Access
      En este proyecto se ha resuelto el problema de migración de máquinas virtuales en federaciones de centros de procesamiento de datos con el fin de reducir los costes de operacion (coste energético y de comunicación). Hemos ...
    • Optimal energy management for a residential microgrid including a vehicle-to-grid system 

      Igualada González, Lucía; Corchero García, Cristina; Cruz Zambrano, Miguel; Heredia, F.-Javier (Francisco Javier) (2013-11-18)
      External research report
      Open Access
      An optimization model is proposed to manage a residential microgrid including a charging spot with a vehicle-togrid system and renewable energy sources. In order to achieve a realistic and convenient management, we take ...
    • Optimización de stocks mediante simulación 

      Girbau Xalabarder, Joaquim (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2020-11)
      Master thesis
      Restricted access - author's decision
      Se ha realizado un prototipo de simulación de stocks para obtener, de cada producto analizado, el punto de pedido óptimo y la cantidad a comprar óptima cada vez que el stock es menor al punto de pedido. Se ha modelizado ...
    • Optimization of aircraft boarding processes considering passengers’ grouping characteristics 

      Carmona Budesca, Gerard; Juan, Angel A.; Fonseca Casas, Pau (2014)
      Conference report
      Open Access
      A ircraft boarding is one of the critical process es affecting the turnaround time whe n a plane is at an airport. In this work , the aircraft boarding problem is studied with the aim of designing a boarding ...
    • Problemas de diseño de red multiartículo mediante la descomposición de Benders 

      Rodríguez Barreiro, Marta (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2016-06)
      Master thesis
      Restricted access - author's decision
      Los problemas de diseño de red multiartículo pueden ser tratados como MILP, donde las variables binarias representan la toma de decisiones y las continuas el flujo que circula por la red. En esta memoria vamos a resolver ...