Search Results - "Urrutia, Sebastián"

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  1. 1

    Scheduling in sports: An annotated bibliography by Kendall, Graham, Knust, Sigrid, Ribeiro, Celso C., Urrutia, Sebastián

    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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    Journal Article
  2. 2

    What are the worst cases in constrained Last-In-First-Out pick-up and delivery problems? by Urrutia, Sebastián, de Werra, Dominique

    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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  3. 3

    A new neighborhood structure for round robin scheduling problems by Januario, Tiago, Urrutia, Sebastián

    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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  4. 4

    Valid inequalities and branch-and-cut algorithm for the pickup and delivery traveling salesman problem with multiple stacks by Pereira, Armando Honorio, Mateus, Geraldo Robson, Urrutia, Sebastián Alberto

    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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  6. 6

    The nilcatenation problem and its application for detecting money laundering activities in cryptocurrency networks by Tomacheski, Clynton, Milanés, Anolan, Urrutia, Sebastián

    “…This work considers a combinatorial optimization problem in graphs, the nilcatenation problem, and investigates its potential application for detecting money…”
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  7. 7

    Optimizing production levels in maritime inventory routing with load-dependent speed optimization by Algendi, Abdalrahman, Urrutia, Sebastián, Hvattum, Lars Magnus

    “…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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  8. 8

    Formulations and algorithms for the Pickup and Delivery Traveling Salesman Problem with Multiple Stacks by Pereira, Armando H., Urrutia, Sebastián

    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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  9. 9

    Load-dependent speed optimization in maritime inventory routing by Eide, Line, Årdal, Gro Cesilie Håhjem, Evsikova, Nataliia, Hvattum, Lars Magnus, Urrutia, Sebastián

    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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  10. 10

    A branch and cut algorithm for minimum spanning trees under conflict constraints by Samer, Phillippe, Urrutia, Sebastián

    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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  11. 11

    Extended high dimensional indexing approach for reachability queries on very large graphs by da Silva, Rodrigo Ferreira, Urrutia, Sebastián, Hvattum, Lars Magnus

    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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  12. 12

    Nitrogen Sources Affect the Long-Chain Polyunsaturated Fatty Acids Content in Thraustochytrium sp. RT2316-16 by Valdebenito, Diego, Urrutia, Sebastián, Leyton, Allison, Chisti, Yusuf, Asenjo, Juan A, Shene, Carolina

    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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  13. 13

    Delayed improvement local search by Amaral, Heber F., Urrutia, Sebastián, Hvattum, Lars M.

    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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  14. 14

    Constraints to Dark Matter from Inert Higgs Doublet Model by Díaz, Marco Aurelio, Urrutia-Quiroga, Sebastián, Koch, Benjamin

    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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  15. 15

    Can We Predict Prostate Cancer Metastasis Based on Biomarkers? Where Are We Now? by San Francisco, Ignacio F, Rojas, Pablo A, Bravo, Juan C, Díaz, Jorge, Ebel, Luis, Urrutia, Sebastián, Prieto, Benjamín, Cerda-Infante, Javier

    “…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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  16. 16

    Maritime inventory routing: recent trends and future directions by Fagerholt, Kjetil, Hvattum, Lars Magnus, Papageorgiou, Dimitri J., Urrutia, Sebastián

    “…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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  17. 17

    A tutorial on graph models for scheduling round‐robin sports tournaments by Ribeiro, Celso C., Urrutia, Sebastián, de Werra, Dominique

    “…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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  18. 18

    Infected Hepatic Echinococcosis: Results of Surgical Treatment of a Consecutive Series of Patients by Manterola, Carlos, Urrutia, Sebastián

    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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  19. 19

    Heavy Higgs boson production at colliders in the singlet-triplet scotogenic dark matter model by Díaz, Marco Aurelio, Rojas, Nicolás, Urrutia-Quiroga, Sebastián, Valle, José W.F.

    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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  20. 20

    Heuristics for the mirrored traveling tournament problem by Ribeiro, Celso C., Urrutia, Sebastián

    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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