16 research outputs found
Online Security in the Middle East and North Africa: A Survey of Perceptions, Knowledge, and Practice
Digital communication has become a more perilous activity, particularly for activists, political dissidents, and independent media. The recent surge in digital activism that has helped to shape the Arab spring has been met with stiff resistance by governments in the region intent on reducing the impact of digital organizing and independent media. No longer content with Internet filtering, many governments in the Middle East and around the world are using a variety of technological and offline strategies to go after online media and digital activists. In Tunisia, before and during the January 2011 protest movement that led to a change in government there, Internet service providers were apparently logging usernames and passwords to hack into and dismantle online organizing and information sharing among protesters. In early June 2011, Google reported a phishing attack targeted at military and human rights activists to gain access to their Gmail accounts. In Syria, a well organized effort known as the Syrian Electronic Army has been carrying out attacks to disable and compromise web sites that are critical of the Syrian regime. These stories are only a few selected from the set that have become public, and an unknown number of attacks go unnoticed and unreported. Many of these attacks are impossible to attribute to specific actors and may involve a mix of private sector and governmental actors, blurring the lines between cyber attacks and government surveillance. In such an environment, maintaining online security is a growing challenge.In this report we describe the results of a survey of 98 bloggers in the Middle East and North Africa (MENA) carried out in May 2011 in order to study bloggers' perceptions of online risk and the actions they take to address digital communications security, including both Internet and cell phone use. The survey was implemented in the wake of the Arab spring and documents a proliferation of online security problems among the respondents. In the survey, we address the respondents' perceptions of online risk, their knowledge of digital security practices, and their reported online security practices. The survey results indicate that there is much room for improving online security practices, even among this sample of respondents who are likely to have relatively high technical knowledge and experience
The Evolving Landscape of Internet Control
Over the past two years, we have undertaken several studies at the Berkman Center designed to better understand the control of the Internet in less open societies. During the years we've been engaged in this research, we have seen many incidents that have highlighted the continuing role of the Internet as a battleground for political control, including partial or total Internet shutdowns in China, Iran, Egypt, Libya, and Syria; many hundreds of documented DDoS, hacking, and other cyber attacks against political sites; continued growth in the number of countries that filter the Internet; and dozens of well documented cases of on- and offline persecution of online dissidents. The energy dedicated to these battles for control of the Internet on both the government and dissident sides indicated, if nothing else, that both sides think that the Internet is a critical space for political action. In this paper, we offer an overview of our research in the context of these changes in the methods used to control online speech, and some thoughts on the challenges to online speech in the immediate future
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2010 Circumvention Tool Usage Report
Circumvention tools allow users to bypass Internet filtering to access content otherwise blocked by governments, workplaces, schools, or even the blocked sites themselves. There are a number of different types of these tools: blocking-resistant tools, simple web proxies, virtual private network (VPN) services, and open HTTP/SOCKS proxies. But every type of circumvention tool provides the same basic functionality — proxying user connections to provide access to otherwise blocked sites. In the following report, we use a variety of methods to evaluate the usage of the first three of these four types of tools to test two hypotheses. First, even though much of the media attention on circumvention tools has been given to a handful of tools — notably Freegate, Ultrasurf, Tor, and Hotspot Shield — we find that these tools represent only a small portion of overall circumvention usage and that the attention paid to these tools has been disproportionate to their usage, especially when compared to the more widely used simple web proxies. Second, even when including the more widely-used simple web proxies, we find that overall usage of circumvention tools is still very small in proportion to the number of Internet users in countries with substantial national Internet filtering
Large expert-curated database for benchmarking document similarity detection in biomedical literature search
Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe
Partisanship, Propaganda, and Disinformation: Online Media and the 2016 U.S. Presidential Election
In this study, we analyze both mainstream and social media coverage of the 2016 United States presidential election. We document that the majority of mainstream media coverage was negative for both candidates, but largely followed Donald Trump's agenda: when reporting on Hillary Clinton, coverage primarily focused on the various scandals related to the Clinton Foundation and emails. When focused on Trump, major substantive issues, primarily immigration, were prominent. Indeed, immigration emerged as a central issue in the campaign and served as a defining issue for the Trump campaign
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Partisanship, Propaganda, and Disinformation: Online Media and the 2016 U.S. Presidential Election
In this study, we analyze both mainstream and social media coverage of the 2016 United States presidential election. We document that the majority of mainstream media coverage was negative for both candidates, but largely followed Donald Trump’s agenda: when reporting on Hillary Clinton, coverage primarily focused on the various scandals related to the Clinton Foundation and emails. When focused on Trump, major substantive issues, primarily immigration, were prominent. Indeed, immigration emerged as a central issue in the campaign and served as a defining issue for the Trump campaign.
We find that the structure and composition of media on the right and left are quite different. The leading media on the right and left are rooted in different traditions and journalistic practices. On the conservative side, more attention was paid to pro-Trump, highly partisan media outlets. On the liberal side, by contrast, the center of gravity was made up largely of long-standing media organizations steeped in the traditions and practices of objective journalism.
Our data supports lines of research on polarization in American politics that focus on the asymmetric patterns between the left and the right, rather than studies that see polarization as a general historical phenomenon, driven by technology or other mechanisms that apply across the partisan divide.
The analysis includes the evaluation and mapping of the media landscape from several perspectives and is based on large-scale data collection of media stories published on the web and shared on Twitter
Replication Data for: Partisanship, Propaganda, and Disinformation: Online Media and the 2016 U.S. Presidential Election
In this study, we analyze both mainstream and social media coverage of the 2016 United States presidential election. We document that the majority of mainstream media coverage was negative for both candidates, but largely followed Donald Trump’s agenda: when reporting on Hillary Clinton, coverage primarily focused on the various scandals related to the Clinton Foundation and emails. When focused on Trump, major substantive issues, primarily immigration, were prominent. Indeed, immigration emerged as a central issue in the campaign and served as a defining issue for the Trump campaign.
We find that the structure and composition of media on the right and left are quite different. The leading media on the right and left are rooted in different traditions and journalistic practices. On the conservative side, more attention was paid to pro-Trump, highly partisan media outlets. On the liberal side, by contrast, the center of gravity was made up largely of long-standing media organizations steeped in the traditions and practices of objective journalism.
Our data supports lines of research on polarization in American politics that focus on the asymmetric patterns between the left and the right, rather than studies that see polarization as a general historical phenomenon, driven by technology or other mechanisms that apply across the partisan divide.
The analysis includes the evaluation and mapping of the media landscape from several perspectives and is based on large-scale data collection of media stories published on the web and shared on Twitter.
Cross-linking patterns between media sources offer a view of authority and prominence within the media world.
The sharing of media sources by users on Twitter and Facebook provides a broader perspective on the role and influence of media sources among people engaged in politics through Twitter and Facebook.
The differential media sharing patterns of Trump and Clinton supporters on Twitter enable a detailed analysis of the role of partisanship in the formation and function of media structures.
Content analysis using automated tools supports the tracking of topics over time among media sources.
Qualitative media analysis of individual case studies enhances our understanding of media function and structure.
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Media Cloud: Massive Open Source Collection of Global News on the Open Web
We present the first full description of Media Cloud, an open source platform based on crawling hyperlink structure in operation for over 10 years, that for many uses will be the best way to collect data for studying the media ecosystem on the open web. We document the key choices behind what data Media Cloud collects and stores, how it processes and organizes these data, and its open API access as well as user-facing tools. We also highlight the strengths and limitations of the Media Cloud collection strategy compared to relevant alternatives. We give an overview two sample datasets generated using Media Cloud and discuss how researchers can use the platform to create their own datasets