This paper considers the problem of machine learning image classification from social media website data. People on socialmedia websites produce behemoth amounts of data for machine learning. However, the wide-range of image types and labeling confusion makes it difficult to train high-quality classifiers. This paper proposes an approach to automatically identify mistagged images using ensemble...

Introduction The influenza A(H7N9) virus emerged in early 2013 in China, with more than 130 laboratory-confirmed cases identified within a short period of about three months. Evidence-based public health response is essential for effective control of the disease, which relies on epidemiological and clinical data with good quality and timeliness. Publicly available information from sources such ...

Using social media Web sites is among the most common activity of today's children and adolescents. Any Web site that allows social interaction is considered a social media site, including social networking sites such as Facebook, MySpace, and Twitter; gaming sites and virtual worlds such as Club Penguin, Second Life, and the Sims; video sites such as YouTube; and blogs. Such sites offer today'...

With the outbreak of web 2.0, several types of social media such as blogs, discussion forums, review websites and community websites that can be useful for determine the public; sentiment and opinion, towards products and services. Recent surveys impart that online reviews have greater economic impact compared to claric media. The major task of opinion mining or sentiment analysis is used to fi...

BACKGROUND It has been shown that physical activity is more likely to increase if web-based interventions apply evidence-based components (e.g. self-monitoring) and incorporate interactive social media applications (e.g. social networking), but it is unclear to what extent these are being utilized in the publicly available web-based physical activity interventions. The purpose of this study was...

BACKGROUND Children's hospitals are faced with the rising need for technological innovation. Their prospective health care consumers, who increasingly depend on the Web and social media for communication and consumer engagement, drive this need. As patients and family members navigate the Web presence of hospitals, it is important for these specialized organizations to present themselves and th...

OBJECTIVES The purpose of this study was to evaluate the feasibility of using a crowdsourcing contest to promote HIV cure research community engagement. METHODS Crowdsourcing contests are open calls for community participation to achieve a task, in this case to engage local communities about HIV cure research. Our contest solicited images and videos of what HIV cure meant to people. Contestan...

YouTube is a video-sharing website that is increasingly used to share and disseminate health-related information, particularly among younger people. There are reports that social media sites, such as YouTube, are being used to communicate an anti-psychiatry message but this has never been confirmed in any published analysis of YouTube clip content. This descriptive study revealed that the repre...

Given the new realities of the digital age, information goods providers like print newspapers are experimenting with different pricing models for their online content. However, it is not clear how information pricing strategy may influence word of mouth (WOM) via social media that has emerged as a dominant channel for raising awareness about a newspaper’s articles and acquiring new visitors to ...

The technologies and functions of social media have significantly changed interaction on the Internet. These changes affect the perceived attractiveness of websites. Prior research regarding classic Internet offers has only partly considered these specifics. The determinants of attractive social media websites and corresponding online instruments remain under-investigated. Therefore, this study...