The ubiquity and remarkable technological progress of wearable consumer devices and mobile-computing platforms (smart phone, smart watch, tablet), along with the multitude of sensor modalities available, have enabled continuous monitoring of patients and their daily...

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The potential of mHealth devices to register illness has been recognized. This study is the first to present population-level influenza signals in a large network of mHealth users. Mobile health device data linked to ILI-specific...

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According to recent statistics, dementia in its various forms afflicts more than 7.5 million people in the United States, with Alzheimer's disease accounting for 60~80% of these cases. Doctors diagnose Alzheimer's and other types...

PAPER POSTER

Players across the health ecosystem are initiating studies of thousands, even millions, of participants to gather diverse types of data, including biomedical, behavioral, and lifestyle in order to advance medical research. These efforts to...

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With the surge in popularity of wearable technologies a large percentage of the US population is now tracking activities such as sleep, diet and physical exercise. In this study we empirically evaluate the ability...

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The world in which we live has changed rapidly over the last few decades. Threats of bioterrorism, influenza pandemics, and emerging infectious diseases coupled with unprecedented population mobility led to the development of public...

PAPER PRESENTATION

Tweets about physical activity were dominated by neutral sentiments (1270/1500, 84.67%). Providing opinions or information regarding physical activity (1464/1500, 97.60%) and chatting about physical activity (1354/1500, 90.27%) were found to be popular on Twitter. Approximately...

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To use sequential, geocoded social media data as a proxy for human movement to support both disease surveillance and modeling.

Twitter is a free social networking and micro-blogging service that enables its millions of users to send and read each other’s ‘‘tweets,’’ or short, 140-character messages. The service has more than 190 million registered users...

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This paper describes a system that uses Twitter to estimate influenza-like illness levels by geographic region.

Today’s search engines are still very sensitive to the way queries are constructed. In some occasions, equivalent but slightly different forms of a query lead to completely different results. However, popular queries with only one...

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In the “Web 2.0” where every user is at the same time a producer and a consumer. The studies presented in this report demonstrated a high level of correlation between social activities performed online and...

PAPER PRESENTATION

In the last years the Internet has deeply changed the business world and introduced many new opportunities. Every day billions of dollars are spent in on-line services and electronic transactions among users all over the...

PAPER

The role of ranking algorithms is thus crucial: select the pages that are most likely be able to satisfy the user’s needs, and bring them in the top positions. In this survey I will cover...

PAPER PRESENTATION

In this short paper we estimate the size of the public indexable web at 11.5 billion pages. We also estimate the overlap and the index size of Google, MSN, Ask/Teoma and Yahoo!.

In this short paper we introduce Helios, a flexible and efficient open source meta-search engine. Helios currently runs on the top of 16 search engines (in Web, Books, News, and Academic publication domains), but additional...

PAPER CODE

Helios is parallel low requirements meta-search engine written in C. It does not make use of threads and is suitable also for old machines. To parse the responses of the search engines it uses a...

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