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Retweet cascades play an essential role in information diffusion in Twitter. Popular tweets reflect the current trends in Twitter, while Twitter itself is one of the most important online media. Thus, understanding the reasons why a tweet becomes popular is of great interest for sociologists, marketers and social media researches. What is even more… (More)
We study information dissemination in Twitter. We present an analysis of two important characteristics of so called “ retweet cascades”: retweet count and “show” count, i.e., number of users that receive the tweet in their feed. We show that these two measures behave differently. We describe three models that are aimed to predict the audience size of a… (More)
We propose and demonstrate a novel wavelength shared hybrid passive optical network (WS-HPON) architecture for symmetric gigabit PON capacity upgrades with installed equipment re-use, to bridge the technology gap between gigabit- and WDM-PON systems cost- effectively.