نتایج جستجو برای: performance analysis
تعداد نتایج: 3624585 فیلتر نتایج به سال:
3D shape classification plays an important role in the process of organizing and retrieving models in large databases. Classifying shapes means to assign a query model to the most appropriate class of objects: knowledge about the membership of models to classes can be very useful to speed up and improve the shape retrieval process, by allowing the reduction of the candidate models to compare wi...
Cooperative banks play an important role in the European banking system. This paper presents an evaluation of the efficiency and performance of a European cooperative banks. For this purpose an integrated approach is employed using both data envelopment analysis as well as a multicriteria evaluation methodology. Through data envelopment analysis the efficiency of the banks is evaluated under bo...
The aim of this study was to analyze the effect of an increase in training frequency on exercise-induced fatigue by using a systems model with parameters free to vary over time. Six previously untrained subjects undertook a 15-wk training experiment composed of 1) an 8-wk training period with three sessions per week (low-frequency training), 2) 1 wk without training, 3) a 4-wk training period w...
The evaluation of the formative process in the University system has been assuming an ever increasing importance in the European countries. Within this context the analysis of student performance and capabilities plays a fundamental role. In this work we propose a multivariate latent growth model for studying the performances of a cohort of students of the University of Bologna. The model propo...
The definition, implementation and monitoring of valuable analytical quality specifications have played a fundamental role in improving the quality of laboratory services and reducing the rates of analytical errors. However, a body of evidence has been accumulated on the relevance of the extra-analytical phases, namely the pre-analytical steps, their vulnerability and impact on the overall qual...
This paper examines the state of industry in the Third World during the 1980s in a longer term perspective and comments on a range of analytical and policy issues connected with its future development. Two main questions are addressed: In what ways and to what extent has Third World industrialization been affected by the post-1979 world economic crisis? What factors account for the widely diver...
The use of neuropsychological testing to determine fitness to drive in people with neuropathology is likely to be an increasingly attractive alternative to on-road testing for many candidates for assessment. The Rookwood Driving Battery has been shown to have good predictive value for determining some who are likely to fail an on-road test in early studies. This study replicated earlier researc...
BACKGROUND Case-cohort studies have become common in epidemiological studies of rare disease, with Cox regression models the principal method used in their analysis. However, no appropriate procedures to assess the assumption of proportional hazards of case-cohort Cox models have been proposed. METHODS We extended the correlation test based on Schoenfeld residuals, an approach used to evaluat...
The problem of learning a sparse model is conceptually interpreted as the process of identifying active features/samples and then optimizing the model over them. Recently introduced safe screening allows us to identify a part of nonactive features/samples. So far, safe screening has been individually studied either for feature screening or for sample screening. In this paper, we introduce a new...
In order to investigate the local filtering behavior of the Retinex model, we propose a new implementation in which paths are replaced by 2-D pixel sprays, hence the name “random spray Retinex.” A peculiar feature of this implementation is the way its parameters can be controlled to perform spatial investiga-tion. The parameters’ tuning is accomplished by an unsupervised method based on quantit...
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