نتایج جستجو برای: statistical experiment design

تعداد نتایج: 1661434  

1995
Jean-Pierre Chanod Pasi Tapanainen

In this paper we compare two competing approaches to part-of-speech tagging, statistical and constraint-based disambiguation, using French as our test language. We imposed a time limit on our experiment: the amount of time spent on the design of our constraint system was about the same as the time we used to train and test the easy-to-implement statistical model. We describe the two systems and...

Journal: :Journal of dairy science 2006
P J Kononoff K J Hanford

Statistical power is defined as the probability of correctly rejecting the null hypothesis. Power calculations may be useful in planning experiments. The objective of this technical note is to outline an applied method that estimates statistical power of a dairy nutrition experiment that employs a Latin square as the experimental design. Because the SAS MIXED procedure (PROC MIXED) is commonly ...

2006
Todd L. Graves

This article discusses design ideas useful in the development of Markov chain Monte Carlo (MCMC) software. Goals of the design are to facilitate analysis of as many statistical models as possible, and to enable users to experiment with different MCMC algorithms as a research tool. These ideas have been used in YADAS, a system written in the Java language, but are also applicable in other object...

2003
Kristof Engelen Kathleen Marchal Jos De Brabanter Torik Ayoubi Paul Van Hummelen Bart De Moor

A two-sample microarray design aims at identifying genes expressed differentially in two-sample cDNA arrays. A two-sample experiment is a commonly used design to compare relative mRNA abundance between two different samples. Several statistical techniques are available for such designs. For the identification of differentially expressed genes, four methods were compared: a fold test, a t-test [...

Journal: :علوم دامی ایران 0
اکبر یعقوبفر استاد، مؤسسۀ تحقیقات علوم دامی، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران مجید کلانتر استادیار، مرکز تحقیقات و آموزش جهاد کشاورزی استان قم، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران و دانشجوی سابق دکتری، دانشگاه شهرکرد فریبرز خواجعلی استاد، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه شهرکرد

this experiment was conducted to evaluate the effect of different dietary enzyme supplemented non-starch polysaccharides on growth and physiological traits of broilers. 625 one day old ross-308 broiler chickens were allocated randomly to 5 treatments with 5 replicates using a crd statistical design through 1 to 21 and 22 to 42 days of rearing period. treatments were included control, wheat, whe...

2011
Peter Haglich Robert Grimshaw Steven Wilder Marian Nodine J. Bryan Lyles

The Cyber Scientific Method (CSM) formalizes experimentation on computer systems, hardware, software, and networks on the U.S. National Cyber Range. This formalism provides rigor to cyber tests to ensure knowledge can be shared and experiment results can be viewed with confidence, knowing exactly what was tested under what conditions. Cyber Scientific Test Language (CSTL) is an ontology-based l...

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

Journal: :Journal of Nuclear Materials 1995

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