With the fast growth of smart devices and social networks, a lot of computing systems collect
data that record different types of activities. An important computational challenge is to …

In this paper we first exploit cash-tags (“$” followed by stocks' ticker symbols) in Twitter to
build a stock network, where nodes are stocks connected by edges when two stocks co …

With the inception of the Twitter microblogging platform in 2006, a myriad of research efforts
have emerged studying different aspects of the Twittersphere. Each study exploits its own …

The emergence of social media open a lot of research opportunity. Information from social
media could be used for many things, such as detecting event, predicting event, and even …

The way we refer to a place can often differ from official titles assigned by authorities,
especially when referenced in informal settings. This results in a collection of vernacular and …

Pervasive social systems often take advantage of geographical information to provide real-
time information to users based on their location. However, due to privacy concerns, many …

Every year, thousands of disasters impact the world, generating substantial loss in terms of
lives and public infrastructure. The recovery phase requires substantial money investment …

Location based social networks offer spatio-temporal information which can be accessed
through public Application Programming Interfaces (APIs) and drew the interest of …

Con la evolución del Internet, hay una gran cantidad de información presente en la web
como lo son las opiniones de los usuarios o consumidores sobre diversos contextos ya sea …

The automatic detection of events happening in urban areas from mobile phones' and social
networks' datasets is an important problem that would enable novel services ranging from …