CRiBAC: Community-centric role interaction based access control model

As one of the most efficient solutions to complex and large-scale problems, multi-agent cooperation has been in the limelight for the past few decades. Recently, many research projects have focused on context-aware cooperation to dynamically provide complex services. As cooperation in the multi-agent systems (MASs) becomes more common, guaranteeing the security of such cooperation takes on even greater importance. However, existing security models do not reflect the agents' unique features, including cooperation and context-awareness. In this paper, we propose a Community-based Role interaction-based Access Control model (CRiBAC) to allow secure cooperation in MASs. To do this, we refine and extend our preliminary RiBAC model, which was proposed earlier to support secure interactions among agents, by introducing a new concept of interaction permission, and then extend it to CRiBAC to support community-based cooperation among agents. We analyze potential problems related to interaction permissions and propose two approaches to address them. We also propose an administration model to facilitate administration of CRiBAC policies. Finally, we present the implementation of a prototype system based on a sample scenario to assess the proposed work and show its feasibility. © 2012 Elsevier Ltd. All rights reserved

Advancing a contextualized, community-centric understanding of social entrepreneurial ecosystems

We investigate what distinguishes social entrepreneurial ecosystems (SEEs) from entrepreneurial ecosystems (EEs) through appreciation of the importance of context—the multiplex of intertwined social, spatial, temporal, historical, cultural, and political influences. Community is incorporated as a key variable and hitherto overlooked dimension of the structure and influence of SEEs. We draw on extant literature and examples of a variety of SEEs to support our propositions and demonstrate why considerations of both context and community are critical to advance understanding of SEEs. We contribute to the study of SEEs by presenting a new conceptual framework and theorizing SEE as an evolving composite of interdependent actors who interact and collaborate across multiple levels to collectively generate positive externalities and drive sustainable solutions to social problems

A Semantic Web of Know-How: Linked Data for Community-Centric Tasks

This paper proposes a novel framework for representing community know-how on the Semantic Web. Procedural knowledge generated by web communities typically takes the form of natural language instructions or videos and is largely unstructured. The absence of semantic structure impedes the deployment of many useful applications, in particular the ability to discover and integrate know-how automatically. We discuss the characteristics of community know-how and argue that existing knowledge representation frameworks fail to represent it adequately. We present a novel framework for representing the semantic structure of community know-how and demonstrate the feasibility of our approach by providing a concrete implementation which includes a method for automatically acquiring procedural knowledge for real-world tasks.Comment: 6th International Workshop on Web Intelligence & Communities (WIC14), Proceedings of the companion publication of the 23rd International Conference on World Wide Web (WWW 2014

A Third Way of Thinking about Cultural Property

The article argues that the dichotomy between nationalism and internationalism with respect to cultural property, while formative, has outlived its utility, and in many respects compromised the viability of the public good it aims to safeguard. Focused on the example of cultural property in international law, this article argues for more community-centric forms of governance, beyond the interests of states and an undefined “international.” It extrapolates the lessons from cultural property to other forms of resource governance in international law

Toward a Community-Centric Approach to Address School Discipline Disparity

What you are engaging is more than a dissertation, but a dissertation in practice. It is a dissertation in community-centered practice for educational leadership. This is an agenda driven by the need to improve a problem of education practice that is a grave matter of social injustice. This is a response to the persistent call for educational leadership to be community work, to be community-engaged, as community-centric leadership (centered in the community and central to the needs of the marginalized). The agenda is designed to deliver site-specific examples of problems of practice occurring in school settings. Site-specific examples are demonstrated through auto-ethnographic reports and critical race counter-narratives from the worldview of the author of this agenda. I am a community-centric leader who engages the work as Black Activist Mothering, a perspective that is argued in this dissertation to be a unique and greatly needed vantage point. The problem of how race is involved with the ways in which the practices of suspensions and expulsions are enacted in school settings has become a US Department of Justice imperative; as most school districts in the country stand in violation of the civil rights of its students. The urgency to address this problem in ways that are libratory, emancipatory and transformative, is driven by the need to generate improvements in (a) educational leadership practice; and (b) the education research-practice infrastructure. The relationship of race and discipline disparity is utilized through this agenda to illustrate how knowing is not always enough to transform practices; even when the practice has demonstrated in the research to cause harm both disproportionately and at a disparate rate. And often, deeper, and more critical methods are called upon to discover responses to problems of practice within the context of traditional and nontraditional school settings

The Environmental Implications of Redistributive Land Reform

Acknowledgements Thank you to the two anonymous referees who commented on this piece. Conflict of interest The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. Funding The author(s) received no financial support for the research, authorship, and/or publication of this article.Peer reviewedPostprin

Artifact-Centric Semantic Social-Collaboration Network in an Online Healthcare Context

The emergence of Web 2.0 technology and associated social networking system, brings many possibilities and features for online collaboration. Several reference models, frameworks, tools and infrastructures have been proposed to support seamless interaction and communication between human entities in an online social environment. A few studies indicated that social networks are not only constructed on social connections of people, but also mediated by shared objects, known as object-centred sociality. However, most of the developed social software system was centred around the concept of maintaining human-centric social relationships only. This may be because of the common issues of exploiting social network approach for online collaboration related to maintaining the social behaviour, interaction and communication between human and artifacts themselves. These resources or artifacts (i.e., physical objects, software entities, documents, etc.) are active elements in a way that they may coordinate, cooperate, and even trigger collaborative work in a social environment, which is difficult understand and implement. Thus, it is essential to concentrate on exploring the artifact-centric social relations in a new generation of social-collaboration network. This paper explores the concept and characteristics of the social software system and emphasise the importance and role of objects and artifact-centric sociality in a social-collaboration network. We also outline the benefits of semantic representation of social-collaborative network structure by extending existing social ontologies such as FOAF, SIOC, and DC that define additional concepts, properties and complex social relationship of humans, social objects and collaboration artifacts. Finally, we demonstrate the effectiveness of our proposed approach by applying it to a large-scale social-collaborative healthcare service called GRaCE-AGE within the United Kingdom

Improving women’s reproductive health in India by educating men and families

This repository item contains a single issue of Issues in Brief, a series of policy briefs that began publishing in 2008 by the Boston University Frederick S. Pardee Center for the Study of the Longer-Range Future.In this Issues in Brief, 2015 Pardee Graduate Summer Fellow Maanasa Venkatesh argues that reproductive health care for women – as well as men – would improve in India if health care providers included men and marital family members in discussions and education about women’s reproductive health issues. She cites research that has shown that effective reproductive health programs consider cultural decision-making norms and include the partners and other family members who are directly involved in decisions about seeking reproductive health care. She writes “There is discomfort acknowledging that the role of traditional social norms and decision-making dynamics don’t fit with widely-held perceptions of modern female agency. Yet public health efforts have been found to be most effective with they understand and work with existing social structures to achieve change through education and dialogue.” Maanasa Venkatesh was a 2015 Graduate Summer Fellow at the Frederick S. Pardee Center for the Study of the Longer-Range Future. She completed her MBBS in India and earned a master’s degree in Public Health at the Boston University School of Public Health in 2016. She is presently working as a junior resident doctor in Chennai, India. Her research interests include women’s health and equity in international health