Ponències/Comunicacions de congressos
Enviaments recents
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Mixture-based clustering with covariates for ordinal responses
(2023)
Text en actes de congrés
Accés restringit per política de l'editorialExisting methods can perform likelihood-based clustering on a multivariate data matrix of ordinal responses, using finite mixtures to cluster the rows and columns of the matrix. Those models can incorporate the main effects ... -
One-dimensional mixture-based clustering for ordinal responses
(2023)
Text en actes de congrés
Accés restringit per política de l'editorialExisting methods can perform likelihood-based clustering on a multivariate data matrix of ordinal responses, using finite mixtures to cluster the rows and columns of the matrix. Those models can incorporate the main effects ... -
Interval-censored covariates in regression models
(TU Dortmund University, 2023)
Comunicació de congrés
Accés obertInterval-censored time-to-event data are common whenever the event of interest is a silent event that cannot be observed directly. Here, we present an estimation method for generalized linear models with interval-censored ... -
Mixed nonlinear modelling in food engineering: determination of the salting time of boneless dry-cured Cerretan hams
(TU Dortmund University, 2023)
Comunicació de congrés
Accés obertA great challenge in producing a good cured ham is to reduce the variability of the salt content between pieces of ham and to obtain homogeneity in terms of flavour and quality in general. This reduction in variability ... -
An approach based on simulation and optimization to integrate ride-pooling with public transport for a cooperative approach
(2023)
Comunicació de congrés
Accés obertMobility as a Service (MaaS), appeared as a tool to provide more efficient solutions in large urban areas, but, it hasn’t always been the case. The International Union of Public Transport (UITP) and the International ... -
An heuristic algorithm for dynamic network loading
(International Federation of Automatic Control (IFAC), 1997)
Text en actes de congrés
Accés obertThis paper describes an heuristic procedure for the problem of determining the time evolution of traffic flows and routes on a road net work with the key requirement that its computational costs must be appealing so as to ... -
Evaluation of subgradients for the primal gap of variational inequalities and an application to the demand adjustment problem
(Association of European Operational Research Societies (EURO), 2003)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper the use of primal gap functions for variational inequalities for solving bilevel programming problems with equilibrium constraints is addressed. First a sufficient condition is presented so that the Clarke’s ... -
An optimization-based decomposition heuristic for the microaggregation problem
(Springer, 2022)
Text en actes de congrés
Accés obertGiven a set of points, the microaggregation problem aims to find a clustering with a minimum sum of squared errors (SSE), where the cardinality of each cluster is greater than or equal to k. Points in the cluster are ... -
Bootstrap-CURE clustering: An investigation of impact of shrinking on clustering performance
(IOS Press, 2022)
Text en actes de congrés
Accés obertHierarchical clustering is one of the most popular techniques in unsupervised segmentation. However, since it has quadratic complexity as it is based on pairwise distance matrix construction, it tends to be less used with ... -
A simulation system for intermodal assignment of public transport and ride pooling services
(2022)
Text en actes de congrés
Accés restringit per política de l'editorial -
Towards expert-inspired automatic criterion to cut a dendrogram for real-industrial applications
(IOS Press, 2021)
Text en actes de congrés
Accés obertHierarchical clustering is one of the most preferred choices to understand the underlying structure of a dataset and defining typologies, with multiple applications in real life. Among the existing clustering algorithms, ... -
Design of information points for monitoring traffic conditions
(Universidad de Cádiz, 2004)
Text en actes de congrés
Accés obertThis work introduces a particular Stochastic Mathematical Program with Equilibrium Constraints that explicitly incorporates uncertainties in problem data de nition through a bilevel formulation. The upper level assumes ...