نتایج جستجو برای: logistic discriminant analysis
تعداد نتایج: 2879225 فیلتر نتایج به سال:
چاودار از گیاهان مهم خانواده poaceae به شمار می رود که بومی ایران می باشد. در این تحقیق ابتدا تنوع ژنتیکی 70 جمعیت از جنس چاودار (secale l.) که از نقاط مختلف ایران جمع آوری شده بود بر اساس 17 صفت کمی و 14 صفت کیفی ریخت شناسی مورد بررسی قرار گرفت. گونه ها و زیرگونه های این جنس با استفاده از روش تجزیه به مولفه های اصلی (principal component analysis, pca) و تجزیه تابع تشخیص(discriminant function a...
Background: Current statistical methods for sib-pair linkage analysis of complex diseases include linear models, generalized linear models, and novel data mining techniques. The purpose of this study was to further investigate the utility and properties of a novel pattern recognition technique (step-wise discriminant analysis) using the chromosome 10 linkage data from the Framingham Heart Study...
—Because most of the procedures in defect inspection process of TFT-LCD module assembly are examined manually through human vision, cycle time estimation for this particular process is complicated and usually deviated from actual observations considerably in practice. Hence, this study would like to apply the approaches of Bayesian network, linear discriminant analysis, and logistic regression ...
Background and Objectives: Gestational Diabetes Mellitus (GDM) is the most common metabolic disorder in pregnancy. In case of early detection, some of its complications can be prevented. The aim of this study was to investigate early prediction of GDM by logistic regression (LR), discriminant analysis (DA), decision tree (DT) and perceptron artificial neural network (ANN) and to compare these m...
background celiac disease (cd) is a disorder associated with body reaction to gluten. after the gluten intake, an immune reaction against the protein occurs and damages villi of small intestine in celiac patients gradually. objectives the osc, a filtering method for minimization of inter- and intra-spectrometer variations that influence on data acquisition, was applied to biofluid nmr data of c...
Corporate credit granting is a key commercial activity of financial institutions nowadays. A critical first step in the credit granting process usually involves a careful financial analysis of the creditworthiness of the potential client. Wrong decisions result either in foregoing valuable clients or, more severely, in substantial capital losses if the client subsequently defaults. It is thus o...
The best marker combination for differentiating the ovarian cancer from benign is explored with the logistic regression. The serum samples from 81 patients with ovarian cancer and 216 patients with benign pelvic masses provided by 2 institutes were analyzed using Luminex assay test. The selection performance of the logistic regression was compared with three other methods such as t-test, geneti...
introduction: a modern technique for elemental analysis of biological samples is laser induced breakdown spectroscopy (libs). this technique is based on emission of excited atoms, ions, and molecules in plasma produced by focusing a high power laser pulses on sample surface. because of several advantages of libs including little or no sample preparation; minimally invasive; fast analysis time a...
objective: sexual addiction is a psychiatric disorder with unpleasant personal, inter-personal, legal, social, and physical outcomes for the patients. the cycle of this disorder is based on a false belief system known as early maladaptive schemas. this study aimed to examine and compare maladaptive cognitive schemas in sex addicts and normal people. methods: in the present study, a causal-compa...
background: multiple severity scoring systems have been devised and evaluated in adult sepsis, but a simplified scoring model for pediatric sepsis has not yet been developed. this study aimed to develop and validate a new scoring model to stratify the severity of pediatric sepsis, thus assisting the treatment of sepsis in children. methods: data from 634 consecutive patients who presented with ...
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