نتایج جستجو برای: incremental principal component analyses

تعداد نتایج: 1089938  

Journal: Desert 2011
A. Sadoddin A. Salajegheh A.R. Keshtkar B Ghermez cheshmeh H. Ahmadi M. Mahdavi

The relative impacts of different types of land use on the surface water quality are yet to be ascertained and quantified. In this paper, the influence of different types of land use on surface water quality is investigated. Rain events samples from different land use in the central plateau, Iran, were analyzed for major ions. Statistical analyses were employed to examine the statistical relati...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1378

مطالعه توزیع جغرافیایی بارندگی به جهت استفاده وسیع آن در کشاورزی، منابع آب، صنعت، توریسم، احداث و بهره برداری از سدها و نیز علم آبیاری حائز اهمیت می باشد. با استفاده از روش آماری مولفه اصلی ‏‎principal component analysis, oca)‎‏) که در مطالعات هوا و اقلیم شناسی کاربد وسیعیدارد می توان داده های اقلیمی نظیر بارندگی در یک گسترده وسیع جغرافیایی را پهنه بندی کرده و نسبت به کاهش حجم داده ها اقدام نمو...

Journal: :EURASIP J. Adv. Sig. Proc. 2007
Issam Dagher William Kobersy Wassim Abi Nader

A human hand recognition system is introduced. First, a simple preprocessing technique which extracts the palm, the four fingers, and the thumb is introduced. Second, the eigenpalm, the eigenfingers, and the eigenthumb features are obtained using a fast incremental principal non-Gaussian directions analysis algorithm, called IPCA-ICA. This algorithm is based on merging sequentially the runs of ...

Journal: :pollution 2015
rakesh bhutiani d.r. khanna bharti tyagi prashant tyagi dipali kulkarni

the aim of this study was to assess the environmental impact of socio-cultural practices on the water quality of river ganga at the foothills of the garhwal himalayas in uttarakhand state, india. the physico-chemical parameters that contributed to the temporal variation and pollution in the river were identified in this study. principal component analysis (pca) and cluster analysis (ca) were us...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2006
keivan ansari sayed hossein amirshahi siamak moradian

a procedure for an efficient recovering of reflectance spectra of acrylic paint samples from cie tristimulus color values is described. by fixing a certain criteria based on color difference value, the proposed technique preliminarily selects a series of suitable samples from a main dataset containing the reflectance values of a series of different acrylic paint samples, based on the color spec...

Journal: :journal of rangeland science 2016
mousa akbarlou negin nodehi

medicinal plant species constitute a considerable part of the flora in iran and play a major role in the composition of plant communities. therefore, it is necessary to recognize the factors leading to the establishment and distribution of vegetation. for data sampling (2012), land units were specified. the plot size was determined using minimal area method and number of plots was determined by...

1993
María Alpuente Moreno Falaschi Germán Vidal

Interpretation −→ Constraint Analyzer Abstract Conditional Narrowing e ∈ g ∧ u ∈ Ō(e) ∧ (λ → ρ ⇐ ẽ) << RA ∧ σ = mguA({(e|u)κ = λ}) 〈⇐ g, κ〉 ;A 〈⇐ (g ∼ {e}) ∪ {e[u ← ρ]} ∪ ẽ, κσ〉Conditional Narrowing e ∈ g ∧ u ∈ Ō(e) ∧ (λ → ρ ⇐ ẽ) << RA ∧ σ = mguA({(e|u)κ = λ}) 〈⇐ g, κ〉 ;A 〈⇐ (g ∼ {e}) ∪ {e[u ← ρ]} ∪ ẽ, κσ〉 where mguA is the abstract mgu RA is a simplified abstract program which always terminate...

Journal: :Journal of Multivariate Analysis 2014

Journal: :IEEE Transactions on Visualization and Computer Graphics 2020

Journal: :Journal of the American Statistical Association 2015

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