Author
Alfredo Marín
Bio: Alfredo Marín is an academic researcher from University of Murcia. The author has contributed to research in topics: Integer programming & Facility location problem. The author has an hindex of 23, co-authored 56 publications receiving 1508 citations.
Papers published on a yearly basis
Papers
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TL;DR: This paper presents the Tree of Hubs Location Problem, a network hub location problem with single assignment where a fixed number of hubs have to be located, with the particularity that it is required that the hubs are connected by means of a tree.
150 citations
TL;DR: By means of a model based on a set covering formulation, it is shown how the p-median problem can be solved with just a column generation approach that is embedded in a branch-and-bound framework based on dynamic reliability branching.
Abstract: By means of a model based on a set covering formulation, it is shown how the p-median problem can be solved with just a column generation approach that is embedded in a branch-and-bound framework based on dynamic reliability branching. This method is more than competitive in terms of computational times and size of the instances that have been optimally solved. In particular, problems of a size larger than the largest ones considered in the literature up to now are solved exactly in this paper.
137 citations
TL;DR: This paper reviews the integer linear formulations of the uncapacitated multiple allocation hub location problem, and gives new ones that generalize the older formulations and proves that the constraints defined by cliques of a related graph are tighter constraints than the classical ones.
108 citations
TL;DR: In this article, the Lagrangian decomposition based heuristic and exact solution methods are given to test problems with different structures and compared with the classical sub-gradient optimization approach.
96 citations
TL;DR: A heuristic method based on a dual-ascent technique, which is reinforced with several specifical subroutines and does not require any external linear problem solver, is designed and provides the branch-and-bound algorithm with good lower bounds for the nodes of the branching tree.
86 citations
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TL;DR: An integrated and fresh look into the area of GrSCM is taken, using the rich body of available literature, including earlier reviews that had relatively limited perspectives, on the basis of the problem context in supply chain's major influential areas.
Abstract: Vol. 9 Issue 1 pp. 000‐000 There is a growing need for integrating environmentally sound choices into supply-chain management research and practice. Perusal of the literature shows that a broad frame of reference for green supply-chain management (GrSCM) is not adequately developed. Regulatory bodies that formulate regulations to meet societal and ecological concerns to facilitate growth of business and economy also suffer from its absence. A succinct classification to help academicians, researchers and practitioners in understanding integrated GrSCM from a wider perspective is needed. Further, sufficient literature is available to warrant such classification. This paper takes an integrated and fresh look into the area of GrSCM. The literature on GrSCM is covered exhaustively from its conceptualization, primarily taking a ‘reverse logistics angle’. Using the rich body of available literature, including earlier reviews that had relatively limited perspectives, the literature on GrSCM is classified on the basis of the problem context in supply chain’s major influential areas. It is also classified on the basis of methodology and approach adopted. Various mathematical tools/techniques used in literature vis-a-vis the contexts of GrSCM are mapped. A timeline indicating relevant papers is also provided as a ready reference. Finally, the findings and interpretations are summarized, and the main research issues and opportunities are highlighted.
3,344 citations
TL;DR: Basic features that facility location models must capture to support decision-making involved in strategic supply chain planning are identified and applications ranging across various industries are presented.
1,770 citations
TL;DR: In this article, the authors present a review of the state-of-the-art in continuous location models and network location models, mixed-integer programming models, and applications for distribution system design.
935 citations
TL;DR: This paper classifies and surveys network hub location models, includes some recent trends on hub location and provides a synthesis of the literature.
830 citations
TL;DR: This work identifies general characteristics of product recovery networks and compares them with traditional logistics structures, and derives a classification scheme for different types of recovery networks.
Abstract: Recovery of used products is receiving much attention recently due to growing environmental concern. Efficient implementation requires appropriate logistics structures to be set up for the arising goods flow from users to producers. We investigate the design of such logistics networks. As a basis for our analysis we review recent case studies on logistics network design for product recovery in different industries. We identify general characteristics of product recovery networks and compare them with traditional logistics structures. Moreover, we derive a classification scheme for different types of recovery networks.
795 citations