Innovation in healthcare can be associated with social innovation and the mission to contribute to a shared value that benefits not only individuals or organizations but the society as a whole. In this paper, we present the prerequisites of stimulating a market for social innovations by studying the introduction of a national health account. The results show that there is a need to clarify if a...

One of the most remarkable cultural phenomena that blossomed in the Web 2.0 era are the social networking sites, such as Facebook, MySpace, Friendster, Bebo, Netlog or LinkedIn. The introduction of new communication channels facilitates interactive information sharing and collaboration between various actors over social networking sites. These actors, i.e. the providers and the users, do not al...

Graphs are widely used in large scale social network analysis nowadays. Not only analysts need to focus on cohesive subgraphs to study patterns among social actors, but also normal users are interested in discovering what happening in their neighborhood. However, effectively storing large scale social network and efficiently identifying cohesive subgraphs is challenging. In this work we introdu...

In this paper, we propose to detect events from social text streams by exploring the content as well as the temporal, and social dimensions. We define the term event in the social text streams(e.g., blogs, emails, and Usenets) as a set of relations between social actors on a specific topic over a certain time period. We represent social text streams as multi-graphs, where each node represents a...

This paper addresses the shortcomings of architectural computation tools in representing human behavior in built environments, prior to construction and occupancy of those environments. Evaluating whether a design fits the needs of its future users is currently done solely post construction, or is based on the knowledge and intuition of the designer. This issue is of high importance when design...

An acquaintance network is a social structure made up of a set of actors and the ties between them. These ties change dynamically as a consequence of incessant interactions between the actors. In this paper we introduce a social network model called the Interaction-Based (IB) model that involves well-known sociological principles. The connections between the actors and the strength of the conne...

OBJECTIVE Performing an academic exercise aimed at applying the analytical categories from the governance approach developed by Marc Hufty et al., to understand social actors’ relationships in an investigation and intervention project studying so-cioeconomic conditions and seeking to guarantee health insurance continuity for those workers who had lost their work in the city of Medellin, Colombi...

Embedding network data into a low-dimensional vector space has shown promising performance for many real-world applications, such as node classification and entity retrieval. However, most existing methods focused only on leveraging network structure. For social networks, besides the network structure, there also exists rich information about social actors, such as user profiles of friendship n...

In 2 studies, the authors examined whether relationship goals predict change in social support and trust over time. In Study 1, a group of 199 college freshmen completed pretest and posttest measures of social support and interpersonal trust and completed 10 weekly reports of friendship goals and relationship experiences. Average compassionate goals predicted closeness, clear and connected feel...