نتایج جستجو برای: support vector machine model
تعداد نتایج: 2899838 فیلتر نتایج به سال:
A paper currency recognition system has a wide range of applications such as self receiver machines for automated teller machines and automatic good-selling machines. In this paper a new paper currency recognition system based on Fourier-Mellin transform, Markovian characteristics and Support Vector Machine (SVM) is presented. In the first, a pre-processing algorithm by Fourier-Mellin transform...
امضا یکی از شاخص های تشخیص هویت و بازشناسی امضا یکی از مسایل مهم در تشخیص الگو است. علیرغم تحقیقات فراوانی که در زمینه بازشناسی امضا صورت گرفته است، تحقیقاتی که در زمینه تشخیص امضا بر روی چک های بانکی انجام شده است در جهان و ایران محدود است. چک های بانکی دارای قسمت های مختلف هستند و پس زمینه و نویز فراوانی دارند و نیز در بانک های ایران طرح چک ثابتی موجود نمی باشد و امضاهایی که بر روی برگه چک ثب...
The paper considers the task of recognizing environmental sounds, which plays a critical role in human’s perception of an auditory context in audiovisual materials. A variety of features have been proposed for audio recognition, either frame-based or segmental. Here, we propose a two-stage framework to combine modeling in these two levels. First, the Gaussian Mixture Models(GMMs) are built base...
In this paper we investigate the issues of data classification (as one of the branches of data mining science) in form of multi-objective mathematical programming model. The model that we present and investigate is a MODM problem. First time, based on support vector machine (SVM) idea (To maximize the margin of two groups), a multi-criteria mathematical programming model was proposed for data m...
We address the problem of model selection for Support Vector Machine (SVM) classification. For fixed functional form of the kernel, model selection amounts to tuning kernel parameters and the slack penalty coefficient C. We begin by reviewing a recently developed probabilistic framework for SVM classification. An extension to the case of SVMs with quadratic slack penalties is given and a simple...
تعمیر و نگه داری برای افزایش بهره وری و کاهش زمان از کار افتادن تجهیزات که منجر به کاهش تولید می گردد، یکی از موارد مهم تاثیر گذار در بهره وری و افزایش راندمان یک سیستم صنعتی می باشد. به ویژه در صنعت برق مطالعه و پژوهشهای گوناگونی صورت گرفته است. یکی از روشهای متداول کنونی در صنعت برق بازدید بصری خطوط انتقال و شبکه توزیع می باشد. این روش علاوه بر هزینه و نیاز به نیروی انسانی با تجربه، از دقت نا...
objective: international diabetes organization estimates that there are 285 million people worldwide who suffer from diabetes, and this figure is expected to increase to 450 million in next 20 years. according to statistics issued by the world health organization, diabetes is considered among ten leading causes of death in world and its prevalence in the population is growing.this paper deals w...
microarray data have an important role in identification and classification of the cancer tissues. having a few samples of microarrays in cancer researches is always one of the most concerns which lead to some problems in designing the classifiers. for this matter, preprocessing gene selection techniques should be utilized before classification to remove the noninformative genes from the microa...
background: numerous studies used microarray gene expression data to extract metastasis-driving gene signatures for the prediction of breast cancer relapse. however, the accuracy and generality of the previously introduced biomarkers are not acceptable for reliable usage in independent datasets. this inadequacy is attributed to ignoring gene interactions by simple feature selection methods, due...
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