نتایج جستجو برای: two models

تعداد نتایج: 3124218  

2006
James Andreoni William T. Harbaugh

Revealed preference tests are elegant nonparametric tools that ask whether individual or aggregate data conform to economic models of optimizing behavior. In designing a test using revealed preference, however, one faces a vexing tension between goodness-of-…t and power. If the test …nds violations, then one must ask if the test was too demanding— is there an acceptable tolerance for goodness-o...

2014
Sedanur Turgut Bora Bagis Elif Aydogan Ayaz Fatih Mehmet Korkmaz Kᘱvanç Utku Ulusoy Yildirim Hakan Bagis

PURPOSE The purpose of this study was to evaluate whether surface treatments affect the translucency of laminate veneers with different shades and thicknesses. MATERIALS AND METHODS A total of 224 disc-shaped ceramic veneers were prepared from A1, A3, HT (High Translucent) and HO (High Opaque) shades of IPS e.max Press (Ivoclar Vivadent) with 0.5 mm and 1.0 mm thicknesses. The ceramics were d...

Journal: :Annual review of plant biology 2013
Yidan Ouyang Qifa Zhang

Reproductive isolation is both an indicator of speciation and a mechanism for maintaining species identity. Here we review the progress in studies of hybrid sterility in rice to illustrate the present understanding of the molecular and evolutionary mechanisms underlying reproductive isolation. Findings from molecular characterization of genes controlling hybrid sterility can be summarized with ...

Journal: :Bioinformatics 2007
Keith Noto Mark Craven

MOTIVATION The process of transcription is controlled by systems of factors which bind in specific arrangements, called cis-regulatory modules (CRMs), in promoter regions. We present a discriminative learning algorithm which simultaneously learns the DNA binding site motifs as well as the logical structure and spatial aspects of CRMs. RESULTS Our results on yeast datasets show better predicti...

2012
Yingbin Zheng Yu-Gang Jiang Xiangyang Xue

This paper introduces a new image representation for scene recognition, where an image is described based on the response maps of object part filters. The part filters are learned from existing datasets with object location annotations, using deformable part-based models trained by latent SVM [1]. Since different objects may contain similar parts, we describe a method that uses a semantic hiera...

Journal: :Journal of Occupational and Environmental Hygiene 2017

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

abstract previous researches have shown success of growth hormones usage on flower production increase, pod and prevention of abscission of them in some of the pulses. two tests were done, in order to find out the effects of growth hormones to on flower production increase, pod and chick pea yield composites in farmer conditions (2010-11) and green house conditions as factorial on the proje...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1393

the purpose of this study was to examine the comparative effect of story retelling and role playing on efl learners’ vocabulary learning and reading comprehension. to carry out the purpose of the study 90 female learners of tabarestan language school located in noshahr were non-randomly selected. they took pet test and among these 90 participants 62 students were selected as homogenous learners...

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