An Annotation-Based Access Control Model and Tools for Collaborative Information Spaces

Nasirifard, Peyman; Peristeras, Vassilios; Decker, Stefan

doi:10.1007/978-3-540-87781-3_6

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…It is not true as 15 Limitations exceeded by the W3C Media Fragment Working Group (MFWG) who discussed the need for various new HTTP headers in order to process URI+fragment requests (an issue raised by fragment parameters being stripped off from URIs by Web browsers and the issue of caching Web proxies). 16 [17]. We express our sincere thanks to Michel Buffa and Catherine Faron for calling our attention to this matter.…”

Section: Isrelatedtomentioning

confidence: 92%

“…Hence, tags, instead of "information resources" [2], traditionally a word or group of words embedded in a hyperlink, might be better understood as non-information resources. Tags are sometimes taken to be no different from any HTML <a> element except for the fact that a tag may receive additional markup (the rel="tag" microformat in particular 17 , to indicate that the link is a tag). 18 While the tagged resource in NiceTag basic schema ( fig.1) espouses the many distinctions drawn in IRW ontology, it remains clear, however, that this is in no way tantamount to loosening the identity criteria of tag actions.…”

Section: The Identity Of Tags In Nicetagmentioning

confidence: 99%

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Speech acts meet tagging

Monnin

Limpens

Gandon

et al. 2010

Proceedings of the 6th International Conference on Semantic Systems

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International audienceCurrent tag models do not fully take into account the rich and diverse nature of tags. Each model makes different partial assumptions as to the definition and attributes a tag should receive. In this paper we propose an ontology, NiceTag, whose primitives are " tag actions " modeled with RDF named graphs. This mechanism allows us to type, describe and thus ensure the traceability of each single act of tagging. Our named graphs contain at least a resource linked to a " sign " , which can be any resource reachable on the Web (an ontology concept, an image, etc.). The resource, the sign and the link between them are the three components of the acts of tagging that we want to explicitly represent as social actions, akin to speech acts. The purpose of our model is threefold. First, to be able to describe acts of tagging in a very precise and general manner, consistent with the principles behind the architecture of the Web. To reconcile and bridge existing tag models (Newman ontology, Tagont, ES, SCOT, SIOC, CommonTag, MOAT, NAO). And finally, to propose a viable way to reify and represent the intention behind an act of tagging and leverage its semantics

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Section: Isrelatedtomentioning

confidence: 92%

Section: The Identity Of Tags In Nicetagmentioning

confidence: 99%

Speech acts meet tagging

Monnin

Limpens

Gandon

et al. 2010

Proceedings of the 6th International Conference on Semantic Systems

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show abstract

“…In the Ecospace architecture, FOAF with Collaborative Vocabulary (CoVoC) [17] extensions is used as the basic eProfessional user model. CoVoC is a vocabulary developed within the project, which extends generic relationshipvocabularies, such as REL-X 2 and RELATIONSHIP.…”

Section: The Ecospace User Modelmentioning

confidence: 99%

“…This step involves the analysis and synthesis of all the collated data from the various instantiations of the first 8 steps necessary to define an evaluation methodology that assessed the quality attributes of the CERA reference architecture and its potential risks. The devised methodology was derived from the evaluation methodology [17] used to assess distributed virtual environment systems. The resulting methodology consisted of the same 10 steps, but adapted to the domain of CWE as demonstrated in the outline of Table 5.…”

Section: Synthesis 8 Assessmentmentioning

confidence: 99%

CERA: a collaborative environment reference architecture for interoperable CWE systems

Peristeras

Fradinho

Lee

et al. 2009

SOCA

Self Cite

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In this paper, we present the collaborative environment reference architecture (CERA) with the aim of supporting collaborative work environment (CWE) interoperability. The vision of CERA is to support users who are engaged in common collaborative spaces with similar work processes to work and collaborate seamlessly together, despite their use of proprietary CWE tools and systems. The underlying CERA concepts, design principles, and models are discussed, as well as the architectural decisions made as a result of the extended requirements analysis exercise. Furthermore, we present results from the Ecospace (http://www. ip-ecospace.org/) project as an example of a CERA instantiation which focuses on facilitating users collaborating across different CWE systems, namely BSCW, NetWeaver, and BC. We conclude with future research and implementation directions.

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“…This model may be vulnerable to malicious users' collision since one can gain faked tags from partner users. Nasirifard et al [11] proposed an annotation-based access control model for collaborative and social platforms. The model also uses the concept of "tagging" for annotating shared resources and is applicable in multiple Web-based collaboration systems.…”

Section: Related Workmentioning

confidence: 99%

WiseShare: A Collaborative Environment for Knowledge Sharing Governed by ABAC Policies

Ould-Slimane

Bande

Boucheneb

2012

Proceedings of the 8th IEEE International Conference on Collaborative Computing: Networking, Applications and Worksharing

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In this paper, we propose an attribute based access control (ABAC) approach for safely sharing knowledge in a collaborative environment. Indeed, existing similar systems facilitate collaboration at the risk to convey doubtful information and sometimes serve as a gate to vandalism. Our system called "Wise-Share" ensures collaboration while focusing on the reliability of the broadcasted content. To achieve this goal, we precisely express the requirements needed to control the shared information. In addition, we define a formal framework for specifying security policies governing contributions requests according to user profile. We present also a prototype implementing the functionalities of our system. In our approach, a new user has limited rights. On an ongoing basis, if he demonstrates his ability to produce good contributions, he gains new privileges. Conversely, if he often generates contributions with a questionable content, he loses the held privileges. Therefore, granting user requests depends closely on his previous behavior (the history). Indeed, our system encourages users to adopt a responsible attitude by focusing on the reliability of the content of their contributions instead of their frequency. Consequently, WiseShare permits to significantly minimize clumsy and malicious actions. Index Terms-Collaborative environments, knowledge sharing, attribute based access control.

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An Annotation-Based Access Control Model and Tools for Collaborative Information Spaces

Cited by 8 publications

References 19 publications

Speech acts meet tagging

Speech acts meet tagging

CERA: a collaborative environment reference architecture for interoperable CWE systems

WiseShare: A Collaborative Environment for Knowledge Sharing Governed by ABAC Policies

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