Today, in the rangeland management science and determination of rangecapacity, accurate and true information about range production is crucial. In fact, rangeproduction is considered as a basis for range management. The aim of this study was tocompare different methods for the estimation of forage production with four samplingmethods in the rangelands of Kurdistan province, Iran. The sampling m...

Text Classification is one of the booming area in research with the availability of huge amount of electronic data in the form of news article, research articles, email message, blog, web pages etc. Text Representation is a vital step for text classification. In text representation, term weighting method assigns appropriate weights to the term to get better performance; the term weighting metho...

The process of smart gird operation and management produces big volume of isomeric and polymorphic data, known as power big data. Since the data has a property of panoramic, the combination of data visualization and 3D scene is an efficient solution to comprehensible analysis and demonstration, while the highly detailed 3D models challenge rendering performance and the speed of human-machine co...

Nonintrusive load monitoring (NILM) is a widely accepted technology to conduct monitoring. Many effective methods have been established make NILM more practical. However, the focus of current mainly on identification accuracy and efficiency single under individual appliance operated independently, which limited support for problem multiple appliances simultaneously. Therefore, simultaneous meth...

We present a method to decrease the storage and communication complexity of the context-tree weighting method. This method is based on combining the estimated probability of a node in the context tree and weighted probabilities of its children in one single variable. This variable is represented by its logarithm.

In this paper, natural frequency and response of forced vibration of composite laminated conical shells under different boundary conditions are investigated. To this end, equations of Donnell's thin shell theory are used as governing equations. The analytical Galerkin method together with beam mode shapes as weighting functions is employed to solve the problem. Due to importance of boundary con...

Currently, in web page classification, Absolute Weighting Method is a common method to weight HTML main structure features. The disadvantage of the method is that weighting coefficient is a fixed value, which has different effects on the long and short text. So the influence of structure features on local text will be weakened with the length of local text increasing. To solve the problem, we p...

In this paper, we propose and discuss a novel approach for measuring perceived contrast. The proposed method comes from the modification of previous algorithms with a different local measure of contrast and with a parameterized way to recombine local contrast maps and color channels. We propose the idea of recombining the local contrast maps using gaze information, saliency maps and a gaze-atte...