نتایج جستجو برای: variable importance

تعداد نتایج: 638156  

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Journal: :Journal of Multimedia 2006
Péter Torma Csaba Szepesvári

In the low observation noise limit particle filters become inefficient. In this paper a simple-to-implement particle filter is suggested as a solution to this well-known problem. The proposed Local Importance Sampling based particle filters draw the particles’ positions in a two-step process that makes use of both the dynamics of the system and the most recent observation. Experiments with the ...

Journal: :Computational Statistics & Data Analysis 2014
Shijie Tang Lisha Chen Kam-Wah Tsui Kjell A. Doksum

In a nonparametric framework, we consider the problem of classifying a categorical response Y whose distribution depends on a vector of predictors X, where the coordinates Xj of X may be continuous, discrete, or categorical. To select the variables to be used for classification, we construct an algorithm which for each variable Xj computes an importance score sj to measure the strength of assoc...

Journal: :تحقیقات جغرافیایی 0
فیروز مجرد گروه جغرافیا، دانشگاه رازی کرمانشاه محمد غفوری زاده گروه جغرافیا، دانشگاه رازی کرمانشاه

one of the most famous horticultural exporting products of iran is saffron. at present, the main region for the production of saffron is the northeast region of iran (khorasan-e razavi and southern khorasan provinces). the present research intends to survey the suitable areas for cultivation of saffron in the west of iran (kermanshah and kurdistan provinces) which, in the climatic conditions, i...

Journal: :BMC Proceedings 2007
Kristin K Nicodemus Wenyi Wang Yin Yao Shugart

Risk of complex disorders is thought to be multifactorial, involving interactions between risk factors. However, many genetic studies assess association between disease status and markers one single-nucleotide polymorphism (SNP) at a time, due to the high-dimensional nature of the search space of all possible interactions. Three ensemble methods have been recently proposed for use in high-dimen...

پایان نامه :0 1374

in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...

Journal: :علوم اجتماعی 0
دکتر سعید مرتضوی ناصر پور آزاد پگاه امیررضوی معصومه صادقی مقدم

social responsibility has been recognized as one of the most important elements in the existence and survival of the organizations. therefore, studying and investigating this fundamental element considering social identity leads not only into enhancing organizational commitment, but also increasing the sense of satisfaction among stakeholders outside the organization. the present research inves...

Journal: :روش های عددی در مهندسی (استقلال) 0
علی مقداری a. meghdari

recent developments in the area of smart structures indicate that variable geometry / stiffness truss network is of fundamental importance in designing smart transformable structures and systems for space applications. this paper presents the conceptual design and dynamic modeling of a cooperative re-configurabel dual-arm robotic structure called dual-arm cam-lock manipulator. the manipulator i...

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