Audience adaptive digital signage is a new emerging technology, where public broadcasting displays adapt their content to the audience demographic and temporal features. The collected audience measurement data can be used as a unique basis for statistical analysis of viewing patterns, interactive display applications and also for further research and observer modelling. Here, we use machine lea...

Eating disorders are a persistent concern in the psychiatric community given their often elusive causes and high mortality rates (Crow et al., 2009; Polivy & Herman, 2002); In a longitudinal assessment (years 1979-1997) by Crow et al. (2009), mortality rates were 4.0% for anorexia nervosa and 3.9% for bulimia nervosa. Pro-eating disorder websites have been studied in recent years for their impa...

BACKGROUND Exposure of young people to alcohol advertising is a risk factor for underage drinking. This study assessed youth exposure to television alcohol advertising in the UK, the Netherlands and Germany, from December 2010 to May 2011. METHODS A negative binomial regression model predicted number of alcohol advertisements from the proportion of the television viewership in each age group....

Evaluating policy changes that occur everywhere at the same time is difficult because of the lack of a clear counterfactual. Hoping to address this problem, researchers often proxy for differential exposure using some observed characteristic in the pre-treatment period. As a cautionary tale of how difficult identification is in such settings, we re-examine the results of an influential paper by...

Video is an excellent vehicle for astronomy education and outreach. Usage patterns user demographics are presented short videos covering a variety of topics, delivered to public audiences from three websites, YouTube channels, massive open online classes, or MOOCs. The data spans over decade in some cases. modality the content ranges lecture presentations sub-topics longer scripted pieces creat...

In this research, the objective is to collect a large amount of live streaming data over long period time, argue micro problems e-commerce environment (live book selling e-commerce) with big data, how efficiently interact viewers convert traffic into subscribers, discuss moderating effect number interactions between (viewership) and new influence demographic characteristics (gender, age, geogra...

background: in the recent years, eutrophication has become a serious challenge for many of the water ecosystems. it has affected the environmental and economical aspects of the anzali wetland, which is known as one of the significant ecosystem. due to the increase of the nutrient loadings from the industrial, agricultural and human activities, the wetland’s health is faced many serious problems...

With thousands of learners watching the same online lecture videos, analyzing video watching patterns provides a unique opportunity to understand how students learn with videos. This paper reports a large-scale analysis of in-video dropout and peaks in viewership and student activity, using second-by-second user interaction data from 862 videos in four Massive Open Online Courses (MOOCs) on edX...

The Internet not only has changed the dynamics of our collective attention but also through the transactional log of online activities, provides us with the opportunity to study attention dynamics at scale. In this paper, we particularly study attention to aircraft incidents and accidents using Wikipedia transactional data in two different language editions, English and Spanish. We study both t...