نتایج جستجو برای: out of sample
تعداد نتایج: 21186375 فیلتر نتایج به سال:
the present research was conducted to explore the effect of employing two language teaching approaches, i.e. schema-based instruction (sbi) and translation-based instruction (tbi), on vocabulary knowledge, structure and reading comprehension ability of forty one female students learning english in grade one senior high school in rivash, kuhsorkh, iran. while sbi focuses on schemata, i.e. words ...
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
this study was carried out to investigate the effects of integrative vs. instrumental motivation, learning strategy use and gender on iranian efl learners. to this end, 120 efl learners both male and female majoring in english language and literature at shiraz university participated in the study. in order to conduct this study three instruments were used: oxford quick placement test, motivatio...
a novel ultra wideband microstrip bandpass filter using radial stub loaded resonator and interdigital coupled lines is presented in this paper. the radial stub loaded resonator and decagonal patch form a resonator named m to create tuneable multiple notches in the passband for suppression wlan interference. to realize sharp roll-off, two adjustable transmission nulls are located at the lower an...
for several years, researchers in familiarity of efl teachers with post-method and its role in second and foreign language learners’ productions have pointed out that the opportunity to plan for a task generally develops language learners’ development (ellis, 2005). it is important to mention that the critical varies in language teaching was shown is the disappearances of the concept of method ...
The prediction of out-of-sample values is an interesting problem in any regression model. In the context penalized smoothing using a mixed-model reparameterization, general framework has been proposed for predicting additive models but without interaction terms. aim this paper to generalize work, extending methodology multidimensional case, that include terms, i.e., when carried out setting. Ou...
Assume a standard setting with data D = {(xi, yi)}i=1, where (xi, yi) are sampled iid from the joint distribution p(x, y) on Rd×{±1}. Let H = {h : R 7→ {±1}} be a learning model which produces a hypothesis g ∈ H when given D (we use g for the hypothesis returned by the learning algorithm and h for a generic hypothesis in H). We assume the 0-1 loss, so the in-sample error is ein(h) = 1 2n ∑n i=1...
among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...
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