نتایج جستجو برای: تئوری grey

تعداد نتایج: 35226  

Journal: :The Journal of heredity 1999
C M Schaeff P B Best V J Rowntree R Payne C Jarvis V A Portway

Distribution and inheritance of dorsal skin color markings among two populations of southern right whales (Eubalaena australis) suggest that two genes influence dorsal skin color. The grey-morph and partial-grey-morph phenotypes (previously known as partial albino and grey-blaze, respectively) appear to be controlled by an X-linked gene, whereas the white blaze appears controlled by an autosoma...

2013
Ruibiao Zou Haiyan Wu

Aiming the problem of low accuracy during establishing grey model in which monotonically decreasing sequence data and traditional modeling methods are used, this paper applied the reciprocal accumulated generating and the approach optimizing grey derivative which is based on three points to deduce the calculation formulas for model parameters, established grey GRM(1, 1) model based on reciproca...

2013
Deqiang Zhou

The advantages and disadvantages of BP neural network and grey Verhulst model for time series prediction are analyzed respectively, this article proposes a new time series forecasting model for the time series growth in S-type or growth being saturated. From the data fitting's viewpoint, the new model named grey Verhulst neural network is established based on grey Verhulst model and BP neural n...

2016
Lu WANG Ya-Ping MA Qi-Jun ZHOU Ya-Ping ZHANG Peter SAVOLAINEN Guo-Dong WANG

The grey wolf (Canis lupus) is one of the most widely distributed terrestrial mammals, and its distribution and ecology in Europe and North America are largely well described. However, the distribution of grey wolf in southern China is still highly controversial. Several well-known western literatures stated that there are no grey wolves in southern China, while the presence of grey wolf across...

Journal: :Pattern Recognition 2007
Benoît Naegel Nicolas Passat Christian Ronse

The hit-or-miss transform (HMT) is a fundamental operation on binary images, widely used since 40 years. As it is not increasing, its extension to grey-level images is not straightforward, and very few authors have considered it. Moreover, despite its potential usefulness, very few applications of the grey-level HMT have been proposed until now. Part I of this paper, developed hereafter, is dev...

2016
LIN WANG Lin Wang Zhonghua Yang Chen Xue

Regional logistics demand prediction directly affects regional economy development and logistics planning. Grey prediction, BP neural network, grey neural network and other methods have been widely used in the prediction of complex nonlinear logistics demand system. In this study, an improved grey neural network model was proposed based on these models. First, in this model, the grey influence ...

2015
Dhaval Patel

Laparoscopic abdominal surgery is conventionally done under general anesthesia. is usually preferred in patients where general anesthesia is contraindicated. We our experience using spinal anesthesia as the first choice for laparoscopic surgery for over 2 years with the contention that it is a goo

Journal: :Knowl.-Based Syst. 2013
Peng Wang Peng Meng Ji-Ying Zhai Zhou-Quan Zhu

To improve the market competitiveness of enterprises in the manufacturing industry, some of them involve picking the most appropriate strategies among multiple available alternatives. However, no single alternative works is suitable for all evaluation criteria which must be considered during the selection processes. This paper proposes a new hybrid MCDM method using design of experiment (DoE) a...

2011
Matthew J. Price

One component of wireless communications of increasing necessity in both civilian and military applications is the process of automatic modulation classification. Modulation of a detected signal of unknown origin requiring interpretation must first be determined before the signal can be demodulated. This thesis presents a novel architecture for a modulation classifier that determines the most l...

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