نتایج جستجو برای: 20 and 25 gha

تعداد نتایج: 16950207  

2010
Merigó Lindahl José M

We present the generalized hybrid averaging (GHA) operator. It is a new aggregation operator that generalizes the hybrid averaging (HA) operator by using the generalized mean. Thus, we are able to generalize a wide range of mean operators such as the HA, the hybrid geometric averaging (HGA), the hybrid quadratic averaging (HQA), the generalized ordered weighted averaging (GOWA) operator and the...

Journal: :IEEE transactions on neural networks 1997
Yanwu Zhang Yuanliang Ma

Principal component extraction is an efficient statistical tool which is applied to data compression, feature extraction, signal processing, etc. Representative algorithms in the literature can only handle real data. However, in many scenarios such as sensor array signal processing, complex data are encountered. In this paper, the complex domain generalized Hebbian algorithm (CGHA) is presented...

Journal: :CoRR 2017
Getachew B. Demisse Tsegaye Tadesse Yared Bayissa

The objectives of this paper were to 1) develop an empirical method for selecting relevant attributes for modelling drought and 2) select the most relevant attribute for drought modelling and predictions in the Greater Horn of Africa (GHA). Twenty four attributes from different domain areas were used for this experimental analysis. Two attribute selection algorithms were used for the current st...

Journal: :Operations Research 2013
Ying He James S. Dyer John C. Butler

We propose a preference condition called shifted difference independence to model the reference point dependent measurable time preference. Based on this condition, we axiomatize a general habit formation and satiation model (GHS) to capture both effects of habit formation and satiation. This model allows for a general habit formation function and satiation function that contain the functional ...

Journal: :Monthly Notices of the Royal Astronomical Society 2021

ABSTRACT In late 1940 March, at least five significant solar flares were reported. They likely launched interplanetary coronal mass ejections (ICMEs), and associated with one of the largest storm sudden commencements (SSCs) since 1868, resulting in space weather hazards that would have societal impacts should it occur today. The initial activity is a proton event. Afterwards, another flare was ...

2006
MATAYO INDEJE M. NEIL WARD LABAN J. OGALLO GLYN DAVIES MAXX DILLEY ASSAF ANYAMBA

In this paper the progress made in producing predictions of the Normalized Difference Vegetation Index (NDVI) over Kenya in the Greater Horn of Africa (GHA) for the October–December (OND) season is discussed. Several studies have identified a statistically significant relationship between rainfall and NDVI in the region. Predictability of seasonal rainfall by global climate models (GCMs) during...

Journal: :Biographical Memoirs of Fellows of the Royal Society 1990

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