the purpose of the present study was to investigate the use of personal and impersonal metadiscourse (md) by persian- and english-speaking writers in academic writing. for this purpose, 80 abstracts were selected (40 written by persian-speaking writers and 40 by english-speaking ones) and analyzed. these abstracts were selected from endocrinology and metabolism journals published during 2010 to...

Defects detection is very important to guarantee the welding quality. Many researchers have been done on this area. However, most of them are limited in efficiency. Different from these researches, a method that is used to detect defects from the radiographic images of welding is put forward. This paper discusses an effective method to segment of the defects in welding images. We also use Two D...

Q1 We have inserted a running head. Please approve or provide an alternative. (Received B; revised B; in final form B) Q2 The paper is devoted to the problem of estimating the number of people visible in a camera. It uses as features the ratio of foreground pixels in each cell of a rectangular grid. Using the above features and data mining techniques allowed reaching accuracy up to 85% for exac...

To create convincing forged images, manipulated images or parts of them are usually exposed to some geometric operations which require a resampling step. Therefore, detecting traces of resampling became an important approach in the field of image forensics. In this paper, we revisit existing techniques for resampling detection and design some targeted attacks in order to assess their reliabilit...

Rovio, produced by WowWee, is a small robot equipped with a webcam, IR sensor, base station localization signal, and a unique wheel setup allowing it to move sideways and diagonally as well as forward and backward. The goal of this project is to program Rovio to successfully avoid any obstacles while navigating an indoor environment and simultaneously searching for a color-coded target object. ...

This memo is a brief overview of the work being performed by the QuikSCAT/SeaWinds algorithm group for improving the performance of scatterometer data processing. We summarize recent efforts to adopt an efficient use of the median filter and a physically-based model to improve the ambiguity removal processing. We also review the study to enhance the performance of the processing by devising the...

This paper investigates the problem of single-channel noise reduction in the time domain. The objective is to find a lower dimensional filter that can yield a noise reduction performance as close as possible to or even better than that obtained by the full-rank solution. This is achieved in three steps. First, we transform the observation signal vector sequence, through a semi-orthogonal matrix...

An automated median filter-based ambiguity removal algorithm is used because of its simplicity and computational efficiency. The algorithm requires an initial wind field. Consequently the performance of the algorithm depends largely on the accuracy of the initial wind field compared to the true wind field. Usually, an initial wind field consisting of the highest ranked retrieved wind vectors is...

In Fig. 1 we show the content and style loss in training and test set. The training loss is post-processed with median filtering of window size 2000 and the test loss is computed every 2000 iterations. We did not observe much overfitting: the training and test loss trend are almost the same. We conjecture that the task is so difficult that the network with millions of parameters still underfit....

This paper compares filtering methods for automated breast ultrasound images. The Perona-Malik diffusion filter, the diffusion stick filter and a simple median filter are evaluated as preprocessing methods for segmentation and characterization of lesions in breast ultrasound. In particular, preservation of small relevant image features, edge enhancement characteristics, and computational costs ...