ver the past three decades, a large number of studies have examined how consumers ’ evaluations of issues, candidates, and products are affected by media advertisements. Research on the methods by which consumers ’ attitudes are formed and changed has accelerated at a pace such that Kassarjian

While journalism is evolving toward a rather open-minded participatory paradigm, social media presents overwhelming streams of data that make it difficult to identify the information of a journalist’s interest. Given the increasing interest of journalists in broadening and democratizing news

Manpower and Immigration, 1990) and in the United States A survey of research on high school dropout reveals that one factor in a student's decision to drop out of school may be motivation (see Preparation of this article was facilitated through a grant and a doctoral fellowship from the Social

This thesis presents experiments related to the Icelandic Twitter network. It is based on an analysis made from two perspectives, a general analysis of the overall network, including its users, followed by a more detailed sentiment analysis. The main objective of the general analysis

cultivates a new research field- social media mining. Social theories from social sciences are helpful to explain so-cial phenomena. The scale and properties of social media data are very different from these of data social sciences use to develop social theories. As a new type of social data, social media

detection, collective classification, link prediction and subgraph discovery. While network analysis has been studied in depth in particular areas such as social network analysis, hypertext mining, and web analysis, only recently has there been a cross-fertilization of ideas among these different

At a time of increased social usage of net and collaborative applications a robust and detailed theory of social presence could contribute to our understanding of social behavior in mediated environments, allow researchers to predict and measure differences among media interfaces, and guide

Based on seemingly overwhelming empirical evidence of the decremental effects of reward on intrinsic task interest and creativity, the use of reward to alter human behavior has been challenged in literature reviews, textbooks, and the popular media. An analysis of a quarter century of research

The fast development of multimedia technology and increasing availability of network bandwidth has given rise to an abundance of network data as a result of all the ever-booming social media and social websites in recent years, e.g., Flickr, Youtube, MySpace, Facebook, etc. Social network

Analyzing user messages in social media can measure different population characteristics, including public health measures. For example, recent work has correlated Twitter messages with influenza rates in the United States; but this has largely been the extent of mining Twitter for public health