Search Results - "Urrutia, Sebastián"
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Scheduling in sports: An annotated bibliography
Published in Computers & operations research (2010)“…Sports have worldwide appeal. Professional sport leagues involve significant investments in players. Events such as the Olympics Games, the Football World Cup…”
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What are the worst cases in constrained Last-In-First-Out pick-up and delivery problems?
Published in European journal of operational research (16-10-2018)“…•We consider Last-In-First-Out constrained pick-up and delivery transportation tasks.•We determine the minimum number of stacks needed in the worst case…”
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A new neighborhood structure for round robin scheduling problems
Published in Computers & operations research (01-06-2016)“…In recent years, several works proposed local search heuristics for round robin sport scheduling problems. It is known that the neighborhood structures used in…”
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Valid inequalities and branch-and-cut algorithm for the pickup and delivery traveling salesman problem with multiple stacks
Published in European journal of operational research (01-07-2022)“…•A linear integer programming formulation and valid inequalities for the PDTSPMS.•Separation methods and strategies to improve the performance of the…”
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The nilcatenation problem and its application for detecting money laundering activities in cryptocurrency networks
Published in International transactions in operational research (01-11-2024)“…This work considers a combinatorial optimization problem in graphs, the nilcatenation problem, and investigates its potential application for detecting money…”
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Optimizing production levels in maritime inventory routing with load-dependent speed optimization
Published in Flexible services and manufacturing journal (01-03-2023)“…Maritime inventory routing problems with load-dependent speed optimization involves determining optimal routes, as well as vessel speeds and loads at these…”
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Formulations and algorithms for the Pickup and Delivery Traveling Salesman Problem with Multiple Stacks
Published in Computers & operations research (01-05-2018)“…•We introduce new Integer Linear Programming formulations for the Pickup and Delivery Traveling Salesman Problem with Multiple Stacks.•We propose valid…”
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Load-dependent speed optimization in maritime inventory routing
Published in Computers & operations research (01-11-2020)“…•New non-linear model for maritime inventory routing problems.•The model considers both speed and load of vessels.•We use discretization and interpolation to…”
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A branch and cut algorithm for minimum spanning trees under conflict constraints
Published in Optimization letters (01-01-2015)“…We study approaches for the exact solution of the NP-hard minimum spanning tree problem under conflict constraints. Given a graph G ( V , E ) and a set C ⊂ E ×…”
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Extended high dimensional indexing approach for reachability queries on very large graphs
Published in Expert systems with applications (01-11-2021)“…•We propose a strategy to improve FELINE’s negative cut index.•We introduce LYNX, a novel indexing approach for reachability queries.•Computational results…”
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Nitrogen Sources Affect the Long-Chain Polyunsaturated Fatty Acids Content in Thraustochytrium sp. RT2316-16
Published in Marine drugs (25-12-2022)“…The psychrophilic marine microorganism sp. RT2316-16 can produce carotenoids as well as lipids containing the omega-3 polyunsaturated fatty acids (PUFA)…”
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Delayed improvement local search
Published in Journal of heuristics (01-10-2021)“…Local search is a fundamental tool in the development of heuristic algorithms. A neighborhood operator takes a current solution and returns a set of similar…”
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Constraints to Dark Matter from Inert Higgs Doublet Model
Published in Advances in high energy physics (01-01-2016)“…We study the Inert Higgs Doublet Model and its inert scalar Higgs H as the only source for dark matter. It is found that three mass regions of the inert scalar…”
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Can We Predict Prostate Cancer Metastasis Based on Biomarkers? Where Are We Now?
Published in International journal of molecular sciences (01-08-2023)“…The incidence of prostate cancer (PC) has risen annually. PC mortality is explained by the metastatic disease (mPC). There is an intermediate scenario in which…”
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Maritime inventory routing: recent trends and future directions
Published in International transactions in operational research (01-11-2023)“…We review recent literature pertaining to the maritime inventory routing problem (MIRP), a stimulating, albeit niche, subclass of vendor‐managed inventory…”
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A tutorial on graph models for scheduling round‐robin sports tournaments
Published in International transactions in operational research (01-11-2023)“…Many sports leagues organize their competitions as round‐robin tournaments. This tournament design has a rich mathematical structure that has been studied in…”
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Infected Hepatic Echinococcosis: Results of Surgical Treatment of a Consecutive Series of Patients
Published in Surgical infections (01-10-2015)“…One of the progressive complications of hepatic echinococcosis (HE) is cyst infection and subsequent liver abscess of a hepatic formation (LAHO). To date, this…”
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Heavy Higgs boson production at colliders in the singlet-triplet scotogenic dark matter model
Published in The journal of high energy physics (01-08-2017)“…A bstract We consider the possibility that the dark matter particle is a scalar WIMP messenger associated to neutrino mass generation, made stable by the same…”
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Heuristics for the mirrored traveling tournament problem
Published in European journal of operational research (16-06-2007)“…Professional sports leagues are a major economic activity around the world. Teams and leagues do not want to waste their investments in players and structure…”
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