نتایج جستجو برای: supervised classification

تعداد نتایج: 518655  

Mahesh Pal Pankaj Chandna Surinder Deswal

This study explores a semi-supervised classification approach using random forest as a base classifier to classify the low-back disorders (LBDs) risk associated with the industrial jobs. Semi-supervised classification approach uses unlabeled data together with the small number of labelled data to create a better classifier. The results obtained by the proposed approach are compared with those o...

Journal: :journal of agricultural science and technology 2010
m. naderi khorasgani m. de dapper

this research was performed to evaluate the potentials of landsat mss data for map-ping land features in arid zones of southeastern esfahan, iran. databases of the area were formed using all available relevant maps and reports which were supported by fieldwork. a supervised image classification approach was used and thirty-two training areas were applied. separability of the spectral classes wa...

Journal: :international journal of agricultural management and development 2016
khadijeh abolfathi marzieh alikhah-asl mohammad rezvani mohammad namdar

the growing population and increasing socio-economic necessitiescreates a pressure on land use/land cover. nowadays, land use change detection using remote sensing data provides quantitative and timely information for management and evaluation of natural resources. this study investigates the land use changes in part of hableh rood watershed of iran using landsat 7 and 8 (sensor etm+ and oli) i...

Journal: :Journal of Classification 2015

Journal: :international journal of agricultural management and development 0
khadijeh abolfathi m.sc. student in assessment and land use planning, natural resources and environmental engineering department, faculty of agricultural science, payame noor university (pnu), tehran, iran marzieh alikhah-asl assistant professor, natural resources and environmental engineering, faculty of agricultural science, payame noor university (pnu), tehran, iran mohammad rezvani assistant professor, natural resources and environmental engineering, faculty of agricultural science, payame noor university (pnu), tehran, iran mohammad namdar forest, rangeland and watershed management organization, tehran, iran

the growing population and increasing socio-economic necessities creates a pressure on land use/land cover. nowadays, land use change detection using remote sensing data provides quantitative and timely information for management and evaluation of natural resources. this study investigates the land use changes in part of hableh rood watershed of iran using landsat 7 and 8 (sensor etm+ and oli) ...

Journal: :iranian journal of radiology 0
hossein yousefi banaem department of biomedical engineering, faculty of advanced medical technology, isfahan university of medical sciences, isfahan, iran alireza mehri dehnavi department of biomedical engineering, faculty of advanced medical technology, isfahan university of medical sciences, isfahan, iran; school of optometry and visual science, university of waterloo, waterloo, canada; department of biomedical engineering, faculty of advanced medical technology, isfahan university of medical sciences, isfahan, iran. tel: +98-31 95016497 makhtum shahnazi department of radiology, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran

conclusions in this study, we proposed a new computer aided diagnostic tool for the detection and classification of breast cancer. the obtained results showed that the proposed method is more reliable in diagnostic to assist the radiologists in the detection of abnormal data and to improve the diagnostic accuracy. results after classification with the ensemble supervised algorithm, the performa...

Journal: :Lecture Notes in Computer Science 2022

We present Self-Classifier – a novel self-supervised end-to-end classification learning approach. learns labels and representations simultaneously in single-stage manner by optimizing for same-class prediction of two augmented views the same sample. To guarantee non-degenerate solutions (i.e., where all are assigned to class) we propose mathematically motivated variant cross-entropy loss that h...

Hyperspectral imaging with gathering hundreds spectral bands from the surface of the Earth allows us to separate materials with similar spectrum. Hyperspectral images can be used in many applications such as land chemical and physical parameter estimation, classification, target detection, unmixing, and so on. Among these applications, classification is especially interested. A hyperspectral im...

Data stream is a sequence of data generated from various information sources at a high speed and high volume. Classifying data streams faces the three challenges of unlimited length, online processing, and concept drift. In related research, to meet the challenge of unlimited stream length, commonly the stream is divided into fixed size windows or gradual forgetting is used. Concept drift refer...

Journal: :journal of medical signals and sensors 0
reza azmi boshra pishgoo narges norozi samira yeganeh

brain mr images tissue segmentation is one of the most important parts of the clinical diagnostic tools. pixel classification methods have been frequently used in the image segmentation with two supervised and unsupervised approaches up to now. supervised segmentation methods lead to high accuracy but they need a large amount of labeled data, which is hard, expensive and slow to obtain. moreove...

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