Social movements rely in large measure on networked communication technologies to
organize and disseminate information relating to the movements' objectives. In this work we …

The basic characteristics of extreme events are their infrequence and potential damages to
the human–nature system. It is difficult for people to design comprehensive policies for …

We collect and analyse messages exchanged in Twitter using two of the platform's publicly
available APIs (the search and stream specifications). We assess the differences between …

The importance of searching biomedical literature for drug interaction and side-effects is
apparent. Current digital libraries (eg, PubMed) suffer infrequent tagging and metadata …

Content analysis has a long tradition in the social sciences. It is central to the study of policy
preferences (Budge, 2001; Laver et al., 2003), propaganda and mass media (Krippendorff …

The use of methods borrowed from statistics and physics to analyze written texts has
allowed the discovery of unprecedent patterns of human behavior and cognition by …

The increasing usage of social media for conversations, together with the availability of its
data to researchers, provides an opportunity to study human conversations on a large scale …

In recent years, with the spread of social networking services (SNSs), communication has
been facilitated among people regardless of age, occupation, and geographical locations …

One current research topic in Knowledge Discovery is the analysis of the information
provided by users in Web 2.0 social applications. In particular, some authors have devoted …

Online social media such as the micro-blogging site Twitter has become a rich source of real-
time data on online human behaviors. Here we analyze the occurrence and co-occurrence …