نتایج جستجو برای: partially negative data

تعداد نتایج: 2918678  

Journal: :international journal of industrial mathematics 0
s. kordrostami‎‎ department of mathematics, lahijan branch, islamic azad university, lahijan, ‎iran.‎ m. jahani sayyad ‎noveiri department of mathematics, lahijan branch, islamic azad university, lahijan, ‎iran.‎

data envelopment analysis (dea) is a mathematical technique to evaluate the performance of firms with multiple inputs and outputs. in conventional dea models, the efficiency scores of decision making units (dmus) with non-negative inputs and outputs are evaluated in a special period of time. however, in the real world there are situations wherein performance of firms must be evaluated in multip...

Journal: :Communications for Statistical Applications and Methods 2011

Journal: :Sociological Methods & Research 2006

Journal: :Annals of Functional Analysis 2015

Journal: :Biometrics & Biostatistics International Journal 2015

2011
Emma Brunskill Stuart J. Russell

A key part of effective teaching is adaptively selecting pedagogical activities to maximize long term student learning. In this poster we report on ongoing work to both develop a tutoring strategy that leverages insights from the partially observable Markov decision process (POMDP) framework to improve problem selection relative to state-of-the-art intelligent tutoring systems, and evaluate the...

Journal: :international journal of data envelopment analysis 0
f. seyed esmaeili department of mathematics, islamic azad university, south tehran branch, tehran, iran

data envelopment analysis (dea) is a mathematical programming-based approach for evaluates the relative efficiency of a set of dmus (decision making units). the relative efficiency of a dmu is the result of comparing the inputs and outputs of the dmu and those of other dmus in the pps (production possibility set). also, in data envelopment analysis various models have been developed in order to...

Heterotic groups distinguished among breeding populations provide basic information to help plant breeders to control heterosis consciously. Development of alfalfa free hybrids can provide heterosis through parents' selection with crossing between partially inbred lines from two or three generations of selfing. In order to study of combining ability for forage dry matter, height and regrowth ra...

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