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Federated Conference on computer Science and Information Systems (FedCSIS)

作者： O. Arbelaitz A. Lojo J. Muguerza I. Perona Department of Computer Architecture and Technology University of The Basque Country Donostia-San Sebastian Spain

Web personalization becomes essential in industries and specially for the case of users with special needs such as visually impaired people. Adaptation may very much speed up the navigation of visually impaired people and contribute to diminish the existing technological gap. This work is the first stage of a web mining process carried out in discapnet: a website created to promote the social and work integration of people with disabilities where slow navigation has been detected. Based on observation in-use where behaviours emerge applying a web mining process to server log data, we designed a system to generate user navigation profiles and adapt to the web site through link prediction. Two approaches for user profiling were implemented: a global system built based on the complete database and a modular approach carried out discovering the navigation profiles within different zones. Although both approaches are effective, the modular approach outperforms. When 25% of the navigation of the new user has happened the designed system is able to propose a set of links where nearly 60% of them (2 out of 3) is among the ones the new user will be using in the future. This will definitely make the navigation easier saving a lot of time.

关键词： Navigation Databases Clustering algorithms Adaptation models Web mining Servers

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The challenges of social media technology to management engineering courses

The challenges of social media technology to management engi...

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2014 International Conference on computer, Intelligent Computing and Education technology, CICET 2014

作者： Xie, H. Shi, Y. Liang, T. Li, S. Department of Technology Illinois State University Normal IL United States Department of Computer and Information Science Xi'an Technological University Shaanxi China Department of Systems Engineering University of Arkansas Little Rock AR United States School of Management Xi'an University of Architecture and Technology Xi'an China

ISBN: (纸本)9781138026391

The use of social media involves employing web and mobile technologies to support interactive dialogue and mediate human communication. With the influence of social media in political, economic, and recreational fields, higher educational institutions start to recognize and utilize the idea of adopting the emerging technology in education processes. This paper highlights the difficulty that educators face in the age of social media. The paper discusses how to teach an increasingly networked generation that is ready to search for the opinions of their peers (who may be anonymous) on the internet besides what they learn from classroom teaching. Particularly, this paper discusses the challenges, opportunities, and possible practice of using social media in management engineering courses. The paper suggests using Cooperative Learning as the instructional method to let students work together in small groups to enable and organize students to participate the authentic and focused learning activities. © 2014 Taylor & Francis Group, London, UK.

关键词： Students

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Slime mould analogue models of space exploration and planet colonisation

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JBIS - Journal of the British Interplanetary Society 2014年第7期67卷 290-304页

作者： Adamatzky, Andrew Armstrong, Rachel De Lacy Costello, Ben Deng, Yong Jones, Jeff Mayne, Richard Schubert, Theresa Sirakoulis, Georgios Ch. Zhang, Xiaoge Unconventional Computing Centre University of the West of England Bristol United Kingdom School of Architecture Planning and Landscape The Quadrangle Newcastle University Newcastle upon TyneNE1 7RU United Kingdom Institute of Biosensing Technology University of the West of England Bristol United Kingdom Department of Design of Media Environments Bauhaus University Weimar Germany School of Computer and Information Science Southwest University Chongqing China Department of Electrical and Computer Engineering Democritus University of Thrace Greece

Slime mould Physarum polycephalum is a single cell that is visible by the unaided eye. When spanning sources of nutrients the slime mould builds a network of protoplasmic tubes which is sometimes considered to be optimal in terms of the minimization of metabolite transportation time and distance away from repellents. Previously we have shown that the slime mould is efficient in imitating the formation of man-made road networks in major countries, where major urban areas are sources of nutrients. We used a similar approach to grow slime mould on a three-dimensional template of the Moon to speculate on potential colonisation scenarios. The slime mould imitated the propagation of colonisation in an exploratory mode, i.e. without any definite targets. Additional transportation hubs/targets were added after the initial network was formed, to imitate the development of colonies in parallel with slime mould growth. We provide analyses of proximity graphs representing colonisation networks and support the findings with Physarum-inspired algorithms to inform supply chain design. We speculate on how living Physarum, or its incorporation into a polymer hybrid material, can be used as a wearable smart wetware based on laboratory experiments interacting with chemical components.

关键词： Nutrients

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Imaging of Quantum Materials

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Microscopy and Microanalysis 2015年第S3期21卷 1325-1326页

作者： Felix von Cube Estelle Kalfon-Cohen Yachin Ivry Andrea Knoller Tatiana Webb Dennis Huang Jenny Hoffman Tina Brower-Thomas David C. Bell School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 Quantum Nanostructures and Nanofabrication Massachusetts Institute of Technology (MIT) Cambridge MA 02139 Institut fur Materialwissenschaften Lehrstuhl 3 Universitat Stuttgart Stuttgart Germany Max Planck Institute for Condensed Matter Science Stuttgart Germany Department of Physics Harvard University Cambridge MA 02138 College of Engineering Architecture and Computer Science Howard University Washington D.C. 20059

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Trustworthy communications in Vehicular Ad Hoc NETworks

Trustworthy communications in Vehicular Ad Hoc NETworks

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IEEE World Forum on Internet of Things (WF-IoT)

作者： Jetzabel Serna Roberto Morales Manel Medina Jesus Luna Cybersecurity Research Group Barcelona Digital Technology Centre Department of Computer Architecture Technical University of Catalonia Department of Computer Science Technical University of Darmstadt

Vehicular Ad-Hoc NETworks (VANETs), a pillar for the Internet of Vehicles, aim to improve road safety by preventing and reducing traffic accidents. While VANETs offer a great variety of safety and infotainment applications, there remain a number of security and privacy challenges, such as, user profiling and vehicle tracking, which, must be addressed. This paper contributes with a framework to address security and privacy issues in VANETs. The proposed framework consists of i) an inter-domain authentication system able to provide a near realtime certificate status service, ii) a mechanism to quantitatively evaluate the trust level of a CA and establish a on-the-fly interoperability relationship, and iii) a privacy enhancing model that addresses privacy in terms of linkability.

关键词： Vehicles Privacy Protocols Vehicular ad hoc networks Authentication Internet

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BDGS: A scalable big data generator suite in big data benchmarking

BDGS: A scalable big data generator suite in big data benchm...

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2013 Workshop Series on Big Data Benchmarking, WBDB.cn and WBDB.us.

作者： Ming, Zijian Luo, Chunjie Gao, Wanling Han, Rui Yang, Qiang Wang, Lei Zhan, Jianfeng State Key Laboratory Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China Department of Computing Imperial College London London United Kingdom

ISBN: (纸本)9783319105956

Data generation is a key issue in big data benchmarking that aims to generate application-specific data sets to meet the 4V requirements of big data. Specifically, big data generators need to generate scalable data (Volume) of different types (Variety) under controllable generation rates (Velocity) while keeping the important characteristics of raw data (Veracity). This gives rise to various new challenges about how we design generators efficiently and successfully. To date, most existing techniques can only generate limited types of data and support specific big data systems such as Hadoop. Hence we develop a tool, called Big Data Generator Suite (BDGS), to efficiently generate scalable big data while employing data models derived from real data to preserve data veracity. The effectiveness of BDGS is demonstrated by developing six data generators covering three representative data types (structured, semi-structured and unstructured) and three data sources (text, graph, and table data). © Springer International Publishing Switzerland 2014.

关键词： Big data

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A vibrotactile interface to motivate movement for children with severe to profound disabilities 14

A vibrotactile interface to motivate movement for children w...

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15th International Conference on Human computer Interaction, INTERACCION 2014

作者： Manresa-Yee, Cristina Morrison, Ann Larsen, Jeppe V. Varona, Javier Department of Mathematics and Computer Science Universitat de les Illes Balears Crta. Valldemossa km 7.5 Palma07122 Spain Department of Architecture Design and Media Technology Aalborg University Sofiendalsvej 11 Aalborg SV9200 Denmark

ISBN: (纸本)9781450328807

V-Sense is a vibrotactile interface that encourages children with severe or profound cognitive, sensory and physical impairments to move. The interface makes use of touch, in particular vibrations, as a supportive function to motivate users' actions. Specifically, we propose a vibrotactile interface on the arm and around the shoulder using the saltation perceptual illusion to induce movement of the corresponding joint. In this paper we describe the design principles of the interface and the proposed experimental design to evaluate it. Copyright 2014 ACM.

关键词： User interfaces

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What's in the Container? Classifying Object Contents from Vision and Touch

What's in the Container? Classifying Object Contents from Vi...

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IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Puren Guler Yasemin Bekiroglu Xavi Gratal Karl Pauwels Danica Kragic Computer Vision and Active Perception Lab Center for Autonomous Systems School of Computer Science and Communication KTH Royal Institute of Technology Stockholm Sweden Computer Architecture and Technology Department University of Granada Spain

ISBN: (纸本)9781479969357

Robots operating in household environments need to interact with food containers of different types. Whether a container is filled with milk, juice, yogurt or coffee may affect the way robots grasp and manipulate the container. In this paper, we concentrate on the problem of identifying what kind of content is in a container based on tactile and/or visual feedback in combination with grasping. In particular, we investigate the benefits of using unimodal (visual or tactile) or bimodal (visual-tactile) sensory data for this purpose. We direct our study toward cardboard containers with liquid or solid content or being empty. The motivation for using grasping rather than shaking is that we want to investigate the content prior to applying manipulation actions to a container. Our results show that we achieve comparable classification rates with unimodal data and that the visual and tactile data are complimentary.

关键词： CONTAINERS Grasp Robot Food Containers dry matter content NONVOLATILE CONTENT Visualization Unimodal

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A Cost Sensitive Approach for Virtual Network Reconfiguration

A Cost Sensitive Approach for Virtual Network Reconfiguratio...

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2014 IEEE computers,Communications and IT Applications Conference(ComComAp)

作者： Li Xu Guozhen Tan Xia Zhang Department of Computer Science and Technology Dalian University of Technology State Key Laboratory of Software Architecture(Neusoft Corporation)

ISBN: (纸本)9781479948109

Network Virtualization paves the way for sharing the physical infrastructure with many service providers and enables resources in physical substrate network being applied and provisioned as a form of Virtual Network(VN).However,there exist many obstacles in applications of this *** problem of VN embedding is commonly considered the most difficult one of *** existing research only considers the case of how to embed VN *** user demands on Virtual Network are dynamically changing,how to efficiently reconfigure VN to adapt to changing demand is challenging *** this paper,our objective is to find way for optimally reorganize VN that already embedded on VN in a cost sensitive way to meet the changed *** address this problem by proposing a cost sensitive VN reconfiguration approach.A heuristic VN reconfiguration algorithm with virtual node and virtual link migration and swapping strategy is *** validate and evaluate the given algorithms by conducting experiments in high fidelity emulation *** evaluation results show that the proposed approach can effectively reconfigure VN while minimizing cost and fragmentation of *** comparing our algorithms with others,the given reconfiguration algorithm outperforms existing solutions.

关键词： Network Virtualization Virtual Network Virtual network reconfiguration

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Real-time Object Pose Recognition and Tracking with an Imprecisely Calibrated Moving RGB-D Camera

Real-time Object Pose Recognition and Tracking with an Impre...

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IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Karl Pauwels Vladimir Ivan Eduardo Ros Sethu Vijayakumar Computer Architecture and Technology Department University of Granada Spain School of Informatics University of Edinburgh UK

ISBN: (纸本)9781479969357

We introduce a real-time system for recognizing and tracking the position and orientation of a large number of complex real-world objects, together with an articulated robotic manipulator operating upon them. The proposed system is fast, accurate and reliable and yet does not require precise camera calibration. The key to this high level of performance is a continuously-refined internal 3D representation of all the relevant scene elements. Occlusions are handled implicitly in this approach and a soft-constraint mechanism is used to obtain the highest precision at a specific region-of-interest. The system is well-suited for implementation on Graphics Processing Units and thanks to a tight integration of the latter's graphical and computational capability, scene updates can be obtained at framerates exceeding 40 Hz. We demonstrate the robustness and accuracy of this system on a complex real-world manipulation task involving active endpoint closed-loop visual servo control in the presence of both camera and target object motion.

关键词： Level of Performance Cameras tracking Visual servo control real-time systems camera calibration Object motion Robot Manipulator Location tracking Moving

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