With increasing demand for web services efficient management of web server resources is becoming increasingly important for delivery of desired quality of service to the customers. The diversity and scale of web services make the task of resource management challenging for several reasons. Since a number of different enterprises are involved in offering web services to the customers and providi...

One strategy for alleviating excess latency (delay) in the Internet is the caching of web content at multiple locations. This reduces the number of hops necessary to reach the desired content. This strategy is used for web content such as html pages, images, streaming video, and Internet radio. The network of servers which store this content, and the collections of objects stored on each server...

Popularly used to distribute a variety of multimedia content items in today’s Internet, HTTP-based web content delivery still suffers from various content delivery failures, including server failures [1], network failures [2] and routing failures [3]. Hindered by the expensive deployment cost, the conventional CDN can not deploy as many edge servers as possible to successfully deliver content i...

A wide range of techniques have been proposed, implemented, and even standardized for improving the performance of Web content delivery. However, previous work has found that many Web sites either do not take advantage of such techniques or unknowingly inhibit their use. In this paper, we present the design of a tool called Cassandra that addresses these problems. Web site developers can use Ca...

This research aims to study the effect of using digital (web-based) analyses in performance measurement and optimization of digital marketing in digital-based companies in Tehran. The data collection tool was a researcher-made questionnaire. A panel of experts and supervisor were asked to measure the validity of the questionnaire. For reliability analysis of this tool, Cronbach’s alpha test was...

Background and objectives: Iran was reported in the high-risk group of World Food Security Map in 2008 .Identifying food insecurity is first step for executing interventions. Measuring household food security is its cornerstone. SAMAT System was designed to provide a variety of GIS-based reports to policy makers and managers in the field of food security. Methods and Materials: SAMAT system wa...

Traditionally, telemedicine systems have been designed to improve access to care by allowing physicians to consult a specialist about a case without sending the patient to another location, which may be difficult or time-consuming to reach. The cost of the equipment and network bandwidth needed for this consultation has restricted telemedicine use to contact between physicians instead of betwee...