in this reaserch by comparing some of the recent litreture on indentification production function, we estimate total factor productivity. we focus on parametric methods, especially blundell and bond (2000), ollay and pakes (1996), levinsohn and petrin (2003) and ols.using panel data on plant-level of 4-digits isic in iran from 1380 to 1390. we choose levinsohn and petrin (2003) as the most appr...

The incidence of skin cancer is increasing. Early detection cases vital for treatment. Recently, computerized methods have been widely used in diagnosis. These important advantages such as no human error, short diagnosis time, and low cost. We can segment images using deep learning image processing. Properly segmented help doctors predict the type cancer. However, contain noise hair. noises aff...

Basal Cell Carcinoma (BCC) is the most frequent skin cancer and its increasing incidence producing a high overload in dermatology services. In this sense, it convenient to aid physicians detecting soon. Thus, paper, we propose tool for detection of BCC provide prioritization teledermatology consultation. Firstly, analyze if previous segmentation lesion improves ulterior classification lesion. S...

<p>Skin diseases have a serious impact on human life and health. This article aims to represent the classification accuracy of skin for supporting physicians’ correct decision patients early treatment. In particular, 100 images in each type five from ISIC database are used balanced datasets related accuracy. addition, this paper focuses processing extracting six optimal types eleven featu...

This paper presents some techniques for sensing and perception for an omnidirectional ground autonomous vehicle equipped with a laser scanner. In an assumed structured environment, the sensor data processing methods for both 1D and 2D laser scanner are discussed. Raw data are segmented to lines, circles, ellipse, planes and corners by task depended segmentation algorithms. Each subset of data i...