Identifying topics in news, tracking their temporal dynamics, and understanding how different media sources cover them have important theoretical and practical implications for journalism researchers, producers, and consumers. The explosive growth of online news sources, however, suggests that scalable approaches to topical analysis are needed. We introduce our ongoing efforts to enable large-s...

Decades of research have found evidence of “minimal effects” of the news media on people’s attitudes and beliefs, thereby reinforcing notions of selective exposure and motivated cognition. This paper explores the possibility that, because in today's news environment, different news media outlets convey distinctly different messages, people with different ideological predilections may be especia...

The news media plays an essential role in society, but surveys indicate that the public views the media as biased. This paper presents a theory of media bias that originates with private information obtained by journalists through their investigations and persists despite profit-maximizing news organizations and rivalry from other news organizations. Bias has two effects on the demand for news....

There exist some news obviously classified into incorrect categories on Chinese web pages portal. The main reasons could be that it is difficult to automatically classify Chinese news and the news appearing on web pages portal are retrieved from many media sources. In this study, we integrate genetic algorithm and multi-class support vector machine (SVM) classifier to construct a Chinese news c...

Fifty years of news coverage on the link between media violence and aggression have left the U.S. public confused. Typical news articles pit researchers and child advocates against entertainment industry representatives, frequently giving equal weight to the arguments of both sides. A comparison of news reports and scientific knowledge about media effects reveals a disturbing discontinuity: Ove...

News and social media are emerging as a dominant source of information for numerous applications. However, their vast unstructured content present challenges to efficient extraction of such information. In this paper, we present the SYNC3 system that aims to intelligently structure content from both traditional news media and the blogosphere. To achieve this goal, SYNC3 incorporates innovative ...

BACKGROUND Historical studies of news media have suggested an association between reporting and increased drug abuse. Period effects for substance use have been documented for different classes of legal and illicit substances, with the suspicion that media publicity may have played major roles in their emergence. Previous analyses have drawn primarily from qualitative evidence; the temporal rel...

The traditional media have moved at enormous speeds to present news and information online and have certainly changed the way information is presented to the reader. News and information on the Web is not up-to-date but up-to-theminute. Readers are able to access news stories that have not been published on the printed page or aired on television or radio, yet they are on the Web. Geography is ...