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Affichage de 931 à 940 sur 1999

Article dans une revue

Solving the clique partitioning problem as a maximally diverse grouping problem

Jack Brimberg, Stefana Janićijević, Nenad Mladenovic, Dragan Urošević

In this paper we show that the clique partitioning problem can be reformulated in an equivalent form as the maximally diverse grouping problem (MDGP). We then modify a skewed general variable neighborhood search (SGVNS) heuristic that was first developed to solve the MDGP. Similarly as with the…

Optimization Letters, 2017, 11 (6), pp.1-13. ⟨10.1007/s11590-015-0869-4⟩. ⟨hal-03402185⟩

Article dans une revue

Experimental study of the strain rate dependence of a synthetic gel for ballistic blunt trauma assessment

Anthony Bracq, Grégory Haugou, Rémi Delille, Franck Lauro, Sébastien Roth, Olivier Mauzac

The mechanical characterization of a polymer gel used as reference backing material for blunt ballistic impact interpretation is performed at room temperature from quasi-static (0.002 s−1) up to high strain rates (1500 s−1). As very high strain tensile tests (350%) are conducted, an appropriate…

Journal of the mechanical behavior of biomedical materials, 2017, 72, pp.138-147. ⟨10.1016/j.jmbbm.2017.04.027⟩. ⟨hal-03456414⟩

Article dans une revue

Comparing multiple correspondence and principal component analyses with biomechanical signals. Example with turning the steering wheel

Pierre Loslever, Jessica Schiro, François Gabrielli, Philippe Pudlo

The purpose of this article is to compare Principal Component Analysis (PCA) and a much less used method, i.e. MCA (Multiple Correspondence Analysis) with data being first changed into membership values to fuzzy space windows. For such a comparison, data from an experimental study about turning the…

Computer Methods in Biomechanics and Biomedical Engineering, 2017, 20 (10), pp.1038-1047. ⟨10.1080/10255842.2017.1331341⟩. ⟨hal-03429992⟩

Article dans une revue

Benefits of physical activities centered on the trunk for pregnant women

Eric Watelain, Antonio Pinti, Racha Doya, Cyril Garnier, Hechmi Toumi, Samuel Boudet

Objective: To examine the effect of a trunk exercise program on pain, quality of life (QoL) and physical health (PH) in the late pregnancy and post-partum periods as well as baby weight and size and delivery. Methods: 90 nulliparous women were allocated based on voluntarism to a training group (TG…

Physician and Sports Medicine, 2017, 45 (3), pp.293-302. ⟨10.1080/00913847.2017.1351286⟩. ⟨hal-03028023⟩

Article dans une revue

Stability analysis of switched linear systems on non-uniform time domain with unstable subsystems

Fatima Zohra Taousser, Michael Defoort, Mohamed Djemai, Serge Nicaise

In finite element computations, the choice of the mesh is crucial to obtain accurate solutions. In order to evaluate the quality of the mesh, a posteriori error estimators can be used. In this paper, we develop residual-based error estimators for magnetostatic problems with both classical…

IFAC-PapersOnLine, 2017, 50 (1), pp.14873-14878. ⟨10.1016/j.ifacol.2017.08.2524⟩. ⟨hal-03164172⟩

Article dans une revue

The influence of shoe aging on children running biomechanics

Alexis Herbaut, Pascale Chavet, Maxime Roux, Nils Gueguen, Franck Barbier, Emilie Simoneau-Buessinger

Athletic children are prone to overuse injuries, especially at the heel and knee. Since footwear is an extrinsic factor of lower limb injury risk, the aim of this study was to assess the influence of shoe aging on children running biomechanics. Fourteen children active in sports participated in a…

Gait & Posture, 2017, 56, pp.123-128. ⟨10.1016/j.gaitpost.2017.05.011⟩. ⟨hal-01691141⟩

Article dans une revue

Real-time wrist localization in color images based on corner analysis

Sofiane Medjram, Chaouki Babahenini, Abdelmalik Taleb-Ahmed, Yamina Mohamed Ben Ali

Hand detection and gestures recognition have become very popular in recent human-computer interaction systems. Although several methods of hand detection have been proposed in the literature, they exist few methods that use the wrist as a factor of detection, others impose constraints on the length…

Multimedia Tools and Applications, 2017, 76 (14), pp.15297-15324. ⟨10.1007/s11042-016-3820-5⟩. ⟨hal-03428702⟩

Article dans une revue

Solving the maximum min-sum dispersion by alternating formulations of two different problems

Zhazira Amirgaliyeva, Nenad Mladenovic, Raca Todosijević, Dragan Urošević

The maximum min-sum dispersion problem aims to maximize the minimum accumulative dispersion among the chosen elements. It is known to be strongly NP-hard problem. In this paper we present heuristic where the objective functions of two different problems are shifted within variable neighborhood…

European Journal of Operational Research, 2017, 260 (2), pp.444-459. ⟨10.1016/j.ejor.2016.12.039⟩. ⟨hal-03402282⟩

Article dans une revue

On Strategies to Fix Degenerate k-means Solutions

Daniel Aloise, Nielsen Castelo Damasceno, Nenad Mladenovic, Daniel Nobre Pinheiro

k-means is a benchmark algorithm used in cluster analysis. It belongs to the large category of heuristics based on location-allocation steps that alternately locate cluster centers and allocate data points to them until no further improvement is possible. Such heuristics are known to suffer from a…

Journal of Classification, 2017, 34 (2), pp.165-190. ⟨10.1007/s00357-017-9231-0⟩. ⟨hal-03402183⟩

Article dans une revue

Probabilistic Tabu search with multiple neighborhoods for the Disjunctively Constrained Knapsack Problem

Mariem Ben Salem, Said Hanafi, Raouia Taktak, Hanene Ben-Abdallah

Given a set of items, each with a profit and a weight and a conflict graph describing incompatibilities between items, the Disjunctively Constrained Knapsack Problem is to select the maximum profit set of compatible items while satisfying the knapsack capacity constraint. We develop a probabilistic…

RAIRO - Operations Research, 2017, 51 (3), pp.627-637. ⟨10.1051/ro/2016049⟩. ⟨hal-03401130⟩