Dpto. Estadística e Investigación Operativa - Estatistika eta Ikerketa Operatiboa Saila
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Using biased randomization for trajectory optimization in robotic manipulators
We study the problem of optimization of trajectories for a robotic manipulator, with two degrees of freedom, which is constrained to pass through a set of waypoints in the workspace. The aim is to determine the optimal ... -
Optimizing airline crew scheduling using biased randomization: a case study
Various complex decision making problems are related to airline planning. In the competitive airline industry, ecient crew scheduling is hereby of major practical importance. This paper presents a metaheuristic approach ... -
Evaluation of grape stems and grape stem extracts for sulfur dioxide replacement during grape wine production
Sulfur dioxide (SO2), the main preservative in wine, may affect the sensory properties of the wines, as well as cause allergic reactions and headaches in sensitive people. The aim of this work was to evaluate the replacement ... -
Implementation of artificial intelligence algorithms in climatic zoning according with energy demand in dwellings. A european case
Science has shown, based on data and knowledge, that there is clear evidence that global warming is not a transient effect, and that it is caused mainly by human activity. The consequences of climate change can be noted ... -
Horizontal collaboration in freight transport: concepts, benefits and environmental challenges
Since its appearance in the 1990s, horizontal collaboration (HC) practices have revealed them-selves as catalyzers for optimizing the distribution of goods in freight transport logistics. After introducing the main concepts ... -
Modelado de la atención en consulta externa en un hospital público: una herramienta de gestión
Problema: aunque se dispone de herramientas que pueden apoyar la planificación de las actividades asistenciales, hasta el momento no existe una distribución de los servicios de atención en salud cuya estructura orgánica ... -
Metodo estatistikoak saiakera klinikoetan
Saiakera klinikoak esperimentu estatistikoen artean kasu bereziak dira bere sekuentzia egiturarengatik eta saiakeraren unitateak gizakiak direlako. Honek erregulazio zorrotza eskatzen du eta datuen biltze eta tratatze ... -
Relación del gasto en ocio y vacaciones con variables del ciclo de vida del hogar, demográficas, geográficas y económicas
El gasto en ocio y vacaciones de los hogares puede depender de variables demográficas, geográficas y económicas asociadas al hogar o al sustentador principal. También afecta el tipo de hogar, cuya clasificación puede ... -
Intermuscular coherence between homologous muscles during dynamic and static movement periods of bipedal squatting
Coordination of functionally coupled muscles is a key aspect of movement execution. Demands on coordinative control increase with the number of involved muscles and joints, as well as with differing movement periods within ... -
Improving the quality of satellite imagery based on ground-truth data from rain gauge stations
Multitemporal imagery is by and large geometrically and radiometrically accurate, but the residual noise arising from removal clouds and other atmospheric and electronic effects can produce outliers that must be mitigated ... -
Checking unimodality using isotonic regression: an application to breast cancer mortality rates
In some diseases it is well-known that a unimodal mortality pattern exists. A clear example in developed countries is breast cancer, where mortality increased sharply until the nineties and then decreased. This clear ... -
Prostate cancer incidence and mortality in Navarre (Spain)
Fundamento. A nivel mundial, el cáncer de próstata es uno de los tumores malignos más comúnmente diagnosticados en los hombres. En este estudio, se analizan las tendencias de la incidencia y mortalidad de cáncer de próstata, ... -
Small area estimation of gender-based violence: rape incidence risks in Uttar Pradesh, India
Violence against women is considered an endemic problem in communities and countries around the world, and it has been declared an issue of epidemic proportions by the World Health Organization (WHO). In India, where the ... -
A multicriteria analysis for the green VRP: a case discussion for the distribution problem of a Spanish retailer
This research presents the group of green vehicle routing problems with environmental costs translated into money versus production of noise, pollution and fuel consumption. This research is ... -
Adherence to the Mediterranean diet reduces mortality in the Spanish cohort of the European Prospective Investigation into Cancer and Nutrition (EPIC-Spain)
Epidemiological studies show that adherence to a Mediterranean diet (MD) increases longevity; however, few studies are restricted to Mediterranean populations or explore the effect of a MD pattern that directly incorporates ... -
Possible role of chondroitin sulphate and glucosamine for primary prevention of colorectal cancer. Results from the MCC-Spain study
A safe and effective colorectal cancer (CRC) chemoprevention agent remains to be discovered. We aim to evaluate the association between the use of glucosamine and/or chondroitin sulphate and risk of colorectal cancer (CRC) ... -
A comparison of two modes of data collection: using multidimensional analysis
La investigación sobre comparación entre encuestas presenciales y telefónicas se ha reducido en los últimos años, concluyendo que los resultados son similares, pero los recientes desarrollos tecnológicos y cambios sociales ... -
Intensidade tecnológica e sistemas de trabalho de alto desempenho
The paper examines the moderating effect that the technological intensity of the environment in which the firm operates exerts in the High Performance Work Systems (HPWS) - firm's operational performance relationship. We ... -
Spatial gender-age-period-cohort analysis of pancreatic cancer mortality in Spain (1990-2013)
Recently, the interest in studying pancreatic cancer mortality has increased due to its high lethality. In this work a detailed analysis of pancreatic cancer mortality in Spanish provinces was performed using recent data. ... -
A review of simheuristics: extending metaheuristics to deal with stochastic combinatorial optimization problems
Many combinatorial optimization problems (COPs) encountered in real-world logistics, transportation, production, healthcare, financial, telecommunication, and computing applications are NP-hard in nature. These real-life ...