in online catalogs, searching based on subject keywords, comprise a significant percentage of searches. various studies, especially those of us origin, have stated it to be more than 50 percent. due to the importance of subject searching in online cataloging systems for users, much efforts is being exerted on the part of researchers and designers of such cataloging systems to increase its perfo...

this paper deals with the problem of user-server assignment in online social network systems. online social network applications such as facebook, twitter, or instagram are built on an infrastructure of servers that enables them to communicate with each other. a key factor that determines the facility of communication between the users and the servers is the expected transmission time (ett). a ...

this study explores the effect of online annotations via interactive white boards (iwbs) on reading comprehension of iranian efl learners. to this aim, 60 students from a language institute were selected as homogeneous based on their performance on oxford placement test (2014).then, they were randomly assigned to 3 experimental groups of 20, and subsequently exposed to the research treatment af...

since the late 1990s, different web-based submission and peer review systems have emerged, and significant numbers of journals have shifted from their old paper-based systems to the web-based ones. exploring the main features of these online systems might lead to better understand this flow. this study was performed to examine the features and capabilities of online submissions and peer review ...

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Internet users all over the world are increasing day by day and showing great interest for online shopping. The main reason for the high usage of the internet is the affordable price of mobile gadgets and low internet tariff plans. Consumer behavior is influenced by various factors such as culture, social class, reference groups relationship, family, income level and income independency, age, g...