نتایج جستجو برای: stepwise regression coefficient and fisher

تعداد نتایج: 16860982  

Journal: :Remote Sensing 2014
Chunhua Zhang John M. Kovacs Yali Liu Francisco Flores-Verdugo Francisco Flores-de-Santiago

Given the scale and rate of mangrove loss globally, it is increasingly important to map and monitor mangrove forest health in a timely fashion. This study aims to identify the conditions of mangroves in a coastal lagoon south of the city of Mazatlán, Mexico, using proximal hyperspectral remote sensing techniques. The dominant mangrove species in this area includes the red (Rhizophora mangle), t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده علوم تربیتی و روانشناسی 1388

چکیده هدف اصلی این پژوهش تعیین رابطه استراتژیهای خود رهبری و خلاقیت اعضای هیات علمی دانشگاه علم و صنعت بوده است. در این پژوهش از روش توصیفی از نوع همبستگی استفاده شده است. جامعه آماری پژوهش کلیه اعضای هیات علمی دانشگاه علم و صنعت در سال تحصیلی 88-1387 بود که بالغ بر345 نفربودندو از این تعداد، 119 نفر استاد با استفاده از روش نمونه گیری تصادفی طبقه ای متناسب با حجم انتخاب شد. ابزار جمع آوری داده...

naser Goudarzi, Salaheddin Ebrahimi, Zakarya Ahmadiyan,

Purpose: To investigate the factors affecting communicational skills of regimental commanders toward conscripts at an army introductory military training center in Tehran. Materials and Methods: The participants were 82 regimental commanders of the regiments and battalions of an introductory military training center. A 21-item questionnaire was used to collect the required data. Descriptive...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1390

monumental changes occurring on a daily basis have altered the world into a global village of expanding technology and shrinking geography in which preparing language learners for intercultural communication seems to be a sine qua non for modern language education. employing a cross-sectional design in its first phase, this study investigated the intercultural sensitivity and language proficien...

ژورنال: مرتع 2020
Bashiri, Mehdi, Maroosi, Ali,

Identification of climatic characteristics affecting the annual yield of Rheum Ribes can be useful in management and development of this species in the rangelands. In this research, the annual yield of this species in Khorasan-Razavi province based on 74 climatic parameters during a ten-year period evaluated and affecting climatic parameters extracted using data mining methods. First, the role ...

رحیمیان, حمید, طباطبایی مزدآبادی, سید محسن, محمدپور زرندی, حسین,

The present study aimed to explore the role of organizational culture in the city is prepared to change bank employees Preparation of city bank personnel to change. Method of This research is cross – correlation and the Statistical Society is all city bank employees in Tehran about 2204 persons, using Cochran sampling formula, 327 subjects were selected randomly. Denison Organizational Cultu...

2009
C. J. Sallaberry

The Total System Performance Assessment (TSPA) for the proposed high level radioactive waste repository at Yucca Mountain, Nevada, uses a sampling-based approach to uncertainty and sensitivity analysis. Specifically, Latin hypercube sampling is used to generate a mapping between epistemically uncertain analysis inputs and analysis outcomes of interest. This results in distributions that charact...

Journal: :Statistical Analysis and Data Mining 2009
Chris Fraley Tim Hesterberg

Least-Angle Regression and the LASSO (`1-penalized regression) offer a number of advantages in variable selection applications over procedures such as stepwise or ridge regression, including prediction accuracy, stability and interpretability. We discuss formulations of these algorithms that extend to datasets in which the number of observations could be so large that it would not be possible t...

2004
Ernest S. Shtatland Ken Kleinman Emily M. Cain

This paper is a further development of our work presented at SUGI’26 and SUGI’28 in which we proposed an approach to model building for prediction based on the combination of stepwise logistic regression, information criteria, and the best subset selection. The approach inherited some strong features of the three components mentioned above, in particular it helped to avoid the agonizing process...

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