Sharing hardware resources in heterogeneous computer-supported collaboration scenarios

Vega, Davide; Messeguer, Roc; Ochoa, Sergio F.; Pino, José A.; Freitag, Félix; Medina, Esunly; Royo, Dolors

doi:10.3233/ica-120419

Cited by 9 publications

(12 citation statements)

References 35 publications

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“…We suggest an effort-based incentive mechanism for community cloud where effort is defined as contribution relative to the capacity of a node [13,14]. This mechanism is inspired by the Parecon economic model [4,5] which focuses on social welfare by considering inequality among nodes. Nodes with different capacity cannot have same contribution to the system but in this mechanism they get same reward if they share as much as possible of their capacity, as we explain in the following.…”

Section: Incentive Mechanisms In Community Cloudmentioning

confidence: 99%

“…In this paper we study an incentive mechanism for clouds in community networks, keeping in view the key characteristics of community networks and the scenarios we foresee for community clouds. This incentive mechanism is inspired by Parecon economic model [4,5], and based on the idea of effort of each participant, which we define as its contribution relative to its capacity. Our approach is to do the evaluation with a prototype and simulation experiments, which will allow us to derive additional conclusions regarding its feasibility for implementation and deployment on a wider scale.…”

Section: Introductionmentioning

confidence: 99%

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Incentive-based resource assignment and regulation for collaborative cloud services in community networks

Khan

Büyükşahin

Freitag

2015

Journal of Computer and System Sciences

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Community networks are a successful example of a collective where communities operate ICT infrastructure and provide IP connectivity based on the principle of reciprocal resource sharing of network bandwidth. This sharing, however, has not extended to computing and storage resources, resulting in very few applications and services which are currently deployed within community networks. Cloud computing, as in today's Internet, has made it common to consume resources provided by public clouds providers, but such cloud infrastructures have not materialized within community networks. We analyse in this paper socio-technical characteristics of community networks in order to derive scenarios for community clouds. Based on an architecture for such a community cloud, we implement a prototype for the incentive-driven resource assignment component, deploy it in a testbed of community network nodes, and evaluate its behaviour experimentally. In simulations of large scale community cloud scenarios we study the behaviour of the incentive mechanism in different configurations. Our evaluation gives insight into how the developed mechanisms regulate the consumption of cloud resources taking into account the users' contributions, and how this regulation affects the system usage. Our results suggest a further integration of this regulation component into current cloud management platforms in order to open them up for the operation of an ecosystem of collaborative cloud services in community networks.

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Section: Incentive Mechanisms In Community Cloudmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Incentive-based resource assignment and regulation for collaborative cloud services in community networks

Khan

Büyükşahin

Freitag

2015

Journal of Computer and System Sciences

Self Cite

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“…With the growth of visualization applications such as Computer Aided Design (CAD), Computer Supported Cooperative Work (CSCW) [15,27], Process Simulation [31], and Web Geographical Information System (WebGIS), 3D models or web3D scenes have been more widely used in different applications for different purposes. Based on 3D models, visual interaction technology is arguably a more intuitive form of representation than text as it simulates the real world in visual ways.…”

Section: Introductionmentioning

confidence: 99%

Semantic annotation for web3D scene based on three-layer ontology

Cai

Shi

et al. 2015

ICA

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Semantic annotation provides a fundamental technology for web-based visualization application. However, the lack of automatic reasoning ability makes annotation task both boring and time-consuming when mass 3D models occurs. By means of three-layer ontology based on X3D, a comprehensive approach is proposed to implement semi-automatic semantic annotation in web3D scene. Firstly, three-layer ontology including general ontology, domain ontology and scene ontology is constructed by combining X3D instances with general knowledge, which forms a comprehensive knowledge representation for semantic annotation. Then, based on X3D, features extraction, node reduction and node matching is carried out to implement part-annotation of a certain scene. Next, based on the rules defined, annotation spread mechanism is carried out to implement automatic annotation. Lastly, a case study based on implemented prototype system is also provided to demonstrate the process of semantic annotation. The result shows that the proposed approach can help to implement semantic annotation effectively.

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“…Using the topological graph built previously [16] and a dump of the Guifi.net web database, we relate each owner with their active devices as we show in Fig. 3.…”

Section: Physical Nodes and Communication Layer Representationmentioning

confidence: 99%

“…web servers, monitoring systems). As a natural evolution, some community networks are looking for ways to implement higher level applications [13], which would require mechanisms to regulate and normalize how their members interact with the computational resources [16]. The feasibility of implementing such contributory systems is highly dependent on the network participants' ability to rank and evaluate members' participation.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Social Effort in Multiplex Participatory Networks

Vega

Meseguer

Freitag

2014

Economics of Grids, Clouds, Systems, and Services

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Abstract. Community networks are participatory connectivity solutions for citizens where all the resources are owned, managed and controlled by the participants. As a natural evolution, in recent years some initiatives have flourished to provide higher level services based on volunteer computing and resource sharing paradigms. A fundamental aspect of these paradigms is user participation. In this work, we apply some social mining techniques aiming to identify the roles of the individuals in the social network behind a community network, here Guifi.net, and to measure the participatory involvement in the community network from 2003 to 2014. We observed that community network participants generally dedicate their time and effort to a single participatory forum, generating several types of community structures. We analyzed such structures using a multiplex network formed by mailing list in Guifi.net and a relationship graph built pairwise of users that share a physical wireless link. We were able to distinguish between non-hierarchical participatory forums, where almost all users are part of the same big community and two-tier participatory forums leaded by a small number of users that act as social bridges between their members. Finally, by testing the impact of community leaders in all participatory layers, we profiled the utility of the members' effort to the whole wireless community network.

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Sharing hardware resources in heterogeneous computer-supported collaboration scenarios

Cited by 9 publications

References 35 publications

Incentive-based resource assignment and regulation for collaborative cloud services in community networks

Incentive-based resource assignment and regulation for collaborative cloud services in community networks

Semantic annotation for web3D scene based on three-layer ontology

Analysis of the Social Effort in Multiplex Participatory Networks

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