نتایج جستجو برای: jorc classification

تعداد نتایج: 492400  

Journal: :international journal of environmental research 2012
j.o. odindi p. mhangara

given the critical role played by urban green spaces and the emergence of remote sensing as avaluable natural resource management tool, this study sought to identify trends in green spaces within thecontext of south africa’s transition period (1990 - 2000). using the city of port elizabeth as a case study, threesets of landsat - 5 thematic mapper images (1990, 1995 and 2000) were geo-processed,...

Journal: :environmental resources research 2014
syavash kalbi asghar fallah shaban shataee

forest types mapping, is one of the most necessary elements in the forest management and silviculture treatments. traditional methods such as field surveys are almost time-consuming and cost-intensive. improvements in remote sensing data sources and classification –estimation methods are preparing new opportunities for obtaining more accurate forest biophysical attributes maps. this research co...

Journal: :journal of ai and data mining 2014
amir mosavi

often in modeling the engineering optimization design problems, the value of objective function(s) is not clearly defined in terms of design variables. instead it is obtained by some numerical analysis such as fe structural analysis, fluid mechanic analysis, and thermodynamic analysis, etc. yet, the numerical analyses are considerably time consuming to obtain the final value of objective functi...

ژورنال: :مجله گیاهشناسی ایران 2010
فیروزه بردبار محمد رضا رحیمی نژاد

ویژه گیهای ریخت شناسی گونه aegilops crassa و انتشار آن در ایران با بررسی 32 جمعیت انجام گرفت. تنوع زیادی در ویژگیهای کیفی شامل ارتفاع گیاه، طول سیخک پوشینه سنبلچه بالایی،طول دندانه پوشه سنبلچه بالایی و طول سنبله به همراه سیخک و همچنین ویژگیهای کیفی شامل شکل سنبله، پوشش کرکی پوشه و سطح برگ مشاهده گردید. در این گونه تقسیم بندی تحت گونه ای قابل قبولی امکان پذیر نیست. گونه aegilops crassa به طور عم...

Journal: :caspian journal of environmental sciences 2011
r. zarkami

in the present study, classification trees (cts-j48 algorithm) were used to study the occurrence of roach in rivers in flanders (belgium). the presence/absence of roach was modelled based on a set of river characteristics. the predictive performance of the cts models was assessed based on the percentage of correctly classified instances (cci) and cohen's kappa statistics. to find the best model...

Journal: :caspian journal of environmental sciences 2013
a. salehi m. heydari h. poorbabaei t. rostami m. begim faghir

the present survey was carried out in oak (quercus brantii lindl.) woodlands of arghvan valley protected area, in ilam province, western iran. the main aim of this study was to survey the understory vegetation of oak in different classes of altitude (1400-1600, 1600-1800 and >1800 m) in the southern aspects, and their relationship with physical and chemical properties of soil. four transects, w...

Journal: :archives of breast cancer 0
asieh sadat fattahi endoscopic and minimally invasive surgery research center, mashhad university of medical sciences, mashhad, iran alireza tavassoli endoscopic and minimally invasive surgery research center, mashhad university of medical sciences, mashhad, iran mahmood reza kalantari department of pathology, mashhad university of medical sciences, mashhad, iran sajad noorshafiee endoscopic and minimally invasive surgery research center, mashhad university of medical sciences, mashhad, iran majid rahmani endoscopic and minimally invasive surgery research center, mashhad university of medical sciences, mashhad, iran

background: core needle biopsy (cnb) with histological findings is regarded as one of the most important diagnostic measures that make preoperative assessment and planning for appropriate treatment possible. the aim of this study was to determine the sensitivity and specificity of core biopsy results in our patients with benign and malignant breast lumps, especially for borderline breast lesion...

Journal: :razavi international journal of medicine 0
narges jafarzadeh department of research and education, razavi hospital, mashhad, ir iran hami ashraf department of research and education, razavi hospital, mashhad, ir iran; zakaria idea and innovation support and leading center, tehran, ir iran fahimeh khoshroo department of research and education, razavi hospital, mashhad, ir iran alireza sepehri shamloo student research committee, mashhad university of medical sciences, mashhad, ir iran farzad bidouei department of research and education, razavi hospital, mashhad, ir iran kamran ghaffarzadehgan department of research and education, razavi hospital, mashhad, ir iran; department of research and education, razavi hospital, mashhad, ir iran. tel: +98-5116004594, fax: +98-5116668883

context triple negative breast cancer (tnbc) is a heterogeneous group of diseases that is negative for esterogen receptor (er) progesteron receptor (pr) and human epidermal growth factor receptor 2 (her2). this type of breast cancer is typically high-grade carcinomas, although low-grade tumors occur. the aim of this review is to focus on molecular classification and features, prognostic markers...

Journal: :journal of mining and environment 2013
saeed mojeddifar hojatollah ranjbar hossain nezamabadipour

the main problem associated with the traditional approach to image classification for the mapping of hydrothermal alteration is that materials not associated with hydrothermal alteration may be erroneously classified as hydrothermally altered due to the similar spectral properties of altered and unaltered minerals. the major objective of this paper is to investigate the potential of a neuro-fuz...

ژورنال: محاسبات نرم 2016

Abstract: In disease gene identification and classification, users are only interested in classifying one specific class, disease genes, without considering other classes (non-disease genes). This situation is referred to as one-class classification. Existing machine learning-based methods typically use known disease gene as positive training set and unknown genes as negative training set to bu...

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