Ranking documents in response to users' information needs is a challenging task, due, in part, to the dynamic nature of users' interests with respect to a query or similar queries. We hypothesize that the interests of a given user could be similar to the interests of the broader community of which she is a part at the given time and propose an innovative method that uses social media to charact...

The social user is characterized by his social activity like sharing information, making relationships, etc. With the evolution of social content, the user needs more accurate information that reflects his interests. We focus on analyzing user’s interests which are key elements for improving adaptation (recommendation, personalization, etc.). In this article, we are interested to overcome issue...

BACKGROUND In order to plan and improve provision of comprehensive care in Huntington's disease (HD), it is critical to understand the gaps in healthcare and social support services provided to HD patients. Research has described utilization of healthcare services in HD in Europe, however, studies systematically examining needs for healthcare services and social support are lacking. This study ...

Users have adopted a wide range of digital technologies into their communication repertoire. It remains unclear why they adopt multiple forms of communication instead of substituting one medium for another. It also raises the question: What type of need does each of these media fulfill? In the present article, the authors conduct comparative work that examines the gratifications obtained from F...

Disasters create an urgent need for people to deal with novel emergent problems. To respond effectively, people require information (about the event, support resources, actions, etc.) and the ability to interpret and use available information to deal with diverse, emergent hazard consequences and demands over time. This diversity renders top-down, homogeneous approaches to disaster communicatio...

Network and linked data have become quite prevalent in recent years because of the ubiquity of the web and social media applications, which are inherently network oriented. Such networks are massive, dynamic, contain a lot of content, and may evolve over time in terms of the underlying structure. In this paper, we will study the problem of dynamic link inference in temporal and heterogeneous in...

Healthcare reform has emphasized coordinated and integrated care — patient-centered care — for a decade. To that end, policymakers have invested in integration of healthcare providers’ information flows. Research to date has studied healthcare actors’ information needs but overlooked communicative exchanges among all participants in coordinating treatment plan decisions. Consequently, while med...

Social networks have become an essential part of the people?s communication system. They allow the users to express and share all the things they like with all the people they are connected with. However, this shared information can be dangerous for their privacy issues. In addition, there is some information that is not explicitly given but is implicit in the text of the posts that the user sh...