Redefine the correlation coefficient by experiment methods
نویسندگان
چکیده
With the establishment of global biological monitor network and development of remote sensing technology, data won’t be a limitation, but the variance brought by spatial heterogeneous and fractal will influence correlation coefficient significantly with the enlarged sample scale. Those impede us to find more intrinsic principle in ecology. Ecology is based on experiment, and the experiment methods won’t change with spatial. In that condition, if we construct a system to evaluate the experimental difference, that may benefit the study in spatial ecology. In that condition, we give a synthesis discussion from the concept of data, experiment to analysis methods, and revise as well as develop correlation and regression method to make it suit the demand of spatial analysis. An experimental correlation system is established in this report. Key word: spatial analysis, scale effect, experimental correlation, regression, coupling effect,
منابع مشابه
The Cascade-Correlation Neural Network Growing Algorithm using the Matlab Environment
This paper describes the cascade-correlation algorithm as proposed by [2], as well as its implementation in the Matlab environment. The cascade-correlation is presented as a neural network growing technique which allows one to gradually build a network architecture without the need to redefine the number of neurons to be used in a feed forward neural network if it does not converge. Some result...
متن کاملA new metric for stochastic language model evaluation
Though Perplexity shows good correlation with word error rate within simple n-gram framework like Wall Street Journal task, it has been reported that perplexity have poor correlation with WER when more complicated LM is used. In this paper, a global measure for language model evaluation is proposed which achieveshigher correlation between word accuracy. The metric is based on difference of LM s...
متن کاملمقایسه روش های نسبت موج ایستا و تابع انتقال در تعیین ضریب جذب صوتی مصالح
Introduction: Sound absorption coefficient determination is one of the most important factors among material selection for indoor noise control. The objectives of this study were: 1) comparison sound absorption coefficient of different materials by standing wave ratio and transfer function methods, and 2) developing a regression model in adjusting provided results. Methods: In this study, 46 a...
متن کاملRethinking the architecture of public library spaces in order to redefine a new paradigm
Purpose: The present study aimed to briefly review the current status of the required spaces for the public libraries in the country and identify and redefine the architectural needs of these spaces to achieve a new pattern for contemporary libraries. Method: It is a qualitative research based on grounded theory. The data is collected using library and field methods, analytical analyses, and i...
متن کاملInvestigation of Drought Stress Indices in Corn Surface Water Deficit
In order to study and evaluate the drought stress indices in surface irrigation by furrow method on grain yield, the yield components and water use efficiency, an experiment was conducted at Behbahan Agricultural Research Station in 2014-16. The experiment was conducted as a split plot in a randomized complete block design with 4 replications. Irrigation at two levels (irrigation after 100 and ...
متن کامل