In paid search advertising on Internet, advertisers bid for specific keywords. Consumer involvement affects a consumer’s purchase intention. However, there has been no research on selecting keywords in paid search advertising depending on consumer involvement from the advertisers’ perspective. Our paper investigates the effects of several factors including impressions, click-through rate, conve...

nowadays, the internet has had a rapid expansion and presence in all areas of the individuals, institutions, companies and organizations lives. this has made large extent of data available so that the users need to access their desired information or services through using search engines. to continue and promote providing services, search engines require a source of income. sponsored search adv...

This paper examines the bit and power allocation problem for orthogonal frequency division multiplexing systems in which the overall transmission power is minimized by constraining the fixed data rate and bit error rate. To provide the optimal allocation with less computational complexity, we propose new bit and power allocation schemes based on the Lagrangian method. Firstly, we propose an ini...

Introduction The Internet, particularly the World Wide Web, is a vast source of information that is growing at an explosive rate. More than 7,000,000 publicly available pages are added to the World Wide Web every day, according to a study conducted by Cyveillance, a Washington D.C.-based market research firm. This growth rate means the 2.1 billion unique pages available on the Web will double i...

The simplicity and robustness of unstructured P2P system make it a preferable architecture for constructing real large scale file sharing system. Most of the existing paradigms require more overhead. The trace data analysis shows that the workloads among peers are correlated. The bigger the intersection of workloads, the higher the probability that they share other files is. By exploiting such ...

In a wireless transmission it is necessary to use the channel encoder in order to avoid losses due to transmission errors. This paper presents a method to design the tailbiting codes (TB) for packet data transmission over the additive white gaussian noise (AWGN) channel. In this paper, genetic algorithms (GA) [1] are used in search of good tailbiting codes. The GA technique is applied in search...

The theory of sponsored search has been developing rapidly although with disagreement in scientific circles on answers to some basic questions about sponsored search. This study focuses on two of these questions, namely, if a search engine seeks to maximize profits, 1) what should its pricing policy be and 2) what should its ranking policy be. This paper uses experiments with economically motiv...