due to the lack of users knowledge of the collections used by search engines and in general retrieval systems, users can not express their information need appropriately in queries. in other words, they do not have enough experience to formulate their needs to find related documents. the idea of user’s query expansion aims to help users to improve and correct the queries. in fact, retrieval sys...

INTRODUCTION Unknown etiology and pathophysiology of prostate pain syndrome (PPS) has led to a lack of proper and competent treatment in modern medicine. According to the guidelines of European Association of Urology (EAU), use of complementary treatments is recommended for PPS. In this preliminary study, analyzing the signs and symptoms of PPS from the viewpoint of Iranian traditional medicine...

In this paper we proposed a new method for isolated handwritten Farsi/Arabic characters and numerals recognition using fractal codes. Fractal codes represent affine transformations which when iteratively applied to the range-domain pairs in an arbitrary initial image, the result is close to the given image. Each fractal code consists of six parameters such as corresponding domain coordinates fo...

INTRODUCTION Biological, environmental, inter- and intrapersonal changes during the antenatal period can result in anxiety and stress in pregnant women. It is pivotal to identify potential stressors and prevent their foetal and maternal consequences. The present study was conducted to validate and examine the factor structure of the Farsi version of the Pregnancy Worries and Stress Questionnair...

Analyzing Farsi and Arabic handwritten documents is one area in image processing whose target is to transform picture documents into symbolic form. This transformation is conducted o make rapid and easy saving, improvements, retrieval, reuse, searching and transferring documents. Analyzing documents is performed in five stages: pre-processing, segmentation representation, recognition and post-p...

In the field of mixed scanned documents separation, various studies have been carried out to reduce one (or more) unwanted artifacts from the document. Most of the approaches are based on comparison of the front and back sides of the documents. In some cases, it has been proposed to analyze the colored images; however, because of the calculation complexity of the approaches, they are not well a...

The backpropagation learning algorithm has number of parameters such learning rate (η), momentum factor (α) and steepness parameter (λ). whose values are not known in advance, and must be determined by trail and error. The appropriate selection of these parameters have large effect on the convergence of the algorithm. Many techniques that adaptively adjust these parameters have been developed t...

This paper explores teachers’ perceived information quality indicators of Farsi Web-based Learning Resources (WBLRs) for instructional use. This research positions information quality as “information fit for use”, which implies that it is relative, as information considered appropriate for one’s use may not have sufficient attributes for another’s use. The research employs a qualitative case st...