نتایج جستجو برای: principle component analysis

تعداد نتایج: 3374374  

2006
Muhammad Asif A. M. Mirza

This paper presents a new image fusion algorithm by combining contourlet transform with Kernel Principle Component Analysis to enhance perception in case of night vision applications. Contourlet Transform improves visual perception preserving the edge and texture information as compared to wavelet transform, while Kernel Principle Component Analysis helps to develop effective fusion decision ru...

2014
Bruce Poon Saami Rahman M. Ashraful Amin

The goal of this research is to explore effects of dimensionality reduction and feature selection on the problem of script identification from images of printed documents. The kadjacent segment is ideal for this use due to its ability to capture visual patterns. We have used principle component analysis to reduce the size of our feature matrix to a handier size that can be trained easily, and e...

Journal: :American Journal of Applied Mathematics 2016

Journal: :journal of ai and data mining 2013
mohammad ahmadi livani mahdi abadi meysam alikhany meisam yadollahzadeh tabari

detecting anomalies is an important challenge for intrusion detection and fault diagnosis in wireless sensor networks (wsns). to address the problem of outlier detection in wireless sensor networks, in this paper we present a pca-based centralized approach and a dpca-based distributed energy-efficient approach for detecting outliers in sensed data in a wsn. the outliers in sensed data can be ca...

Journal: :iranian journal of public health 0
ardak кuanyshkaliyeva nurbek igissinov аsiya тurgambayeva

background: we examined epidemiological aspects of dynamic changes in incidence of ovarian cancer in women of kazakh and russian nationalities in kazakhstan. methods: the material of investigation was primary data on registered patients with malignant ovarian tumors in the whole country. the study was conducted during the period of 1999-2009. evaluation of changes in ovarian cancer incidence in...

Journal: :journal of agricultural science and technology 0
d. chandrawati csir-national botanical research institute, rana pratap marg, lucknow-226001, india. n. singh csir-national botanical research institute, rana pratap marg, lucknow-226001, india. r. kumar uttar pradesh council of agricultural research (upcar), vibhuti khand, gomatinagar, lucknow-226010, india. s. kumar uttar pradesh council of agricultural research (upcar), vibhuti khand, gomatinagar, lucknow-226010, india. s. a. ranade csir-national botanical research institute, rana pratap marg, lucknow-226001, india. h. kumar yadav csir-national botanical research institute, rana pratap marg, lucknow-226001, india.

linseed is an important oilseed and fibre crop predominantly grown in india. the aim of the present research was to evaluate genetic diversity and patterns of relationships among the 58 genotypes through 10 morphological traits and 12 polymorphic microsatellite (ssr) markers. euclidean analysis of agro-morphological traits grouped the 58 genotypes into four clusters of which cluster i was the l...

Journal: :journal of agricultural science and technology 2013
o. caliskan s. bayazit

selecting within local pomegranate accessions is the main method used to identify new cultivars. total of 76 pomegranate accessions from hatay, turkey, were collected and their morpho-pomological and chemical characteristics were determined. the results showed that there was significant diversity among the accessions in terms of fruit quality parameters. several accessions were notable for thei...

Journal: :iranian journal of pharmaceutical sciences 0
reza tabaraki department of chemistry, faculty of science, ilam university, ilam, iran negar sadeghinejad department of chemistry, faculty of science, ilam university, ilam, iran

herbal water is referred to the liquid obtained from the distillation of medicinal plants. different parts of plants, such as flowers, fruits, leaves, seeds and roots have long been used to produce herbal waters. herbal waters are used as dietary supplements and alternative medicine and are commonly used for flavoring in baking. previous studies focused on the non-volatile constituents of herbs...

شریفانی, مهدی, صبوری, حسین, کرامتلو, عیسی,

Identification and evaluation of indigenous genotypes of fruit trees are matter of consideration at the first step of the breeding programs. In order to study genetic diversity and to identify promising genotypes, 14 different genotypes of walnut in Minoodasht region in Golestan province (north of Iran) were evaluated. Traits such as nut shape, kernel color, ease of removal of kernel halves, ke...

2002
Bruce A. Maxwell Frederic L. Pryor Casey Smith

One traditional way to reduce the dimensionality of the data is to use some variant of principle component analysis, a technique that permits us to determine which traits are related. Nevertheless, if we wish to determine which societies are the most similar or different using the results of the derived principle components, difficulties begin to arise because, according to one factor, two soci...

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