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2012 14th ACM International Conference on Human-computer Interaction with Mobile Devices and Services, MobileHCI'12

作者： Grubert, Jens Morrison, Ann Munz, Helmut Reitmayr, Gerhard Institute for Computer Graphics and Vision Graz University of Technology Austria Department of Architecture Design and Media Technology Aalborg University DK-9220 Aalborg St Denmark

ISBN: (纸本)9781450311052

Magic lens and static peephole interfaces are used in numerous consumer mobile phone applications such as Augmented Reality browsers, games or digital map applications in a variety of contexts including public spaces. Interface performance has been evaluated for various interaction tasks involving spatial relationships in a scene. However, interface usage outside laboratory conditions has not been considered in depth in the evaluation of these interfaces. We present findings about the usage of magic lens and static peephole interfaces for playing a find-and-select game in a public space and report on the reactions of the public audience to participants? interactions. Contrary to our expectations participants favored the magic lens over a static peephole interface despite tracking errors, fatigue and potentially conspicuous gestures. Most passersby did not pay attention to the participants and vice versa. A comparative laboratory experiment revealed only few differences in system usage. Copyright 2012 ACM.

关键词： Augmented reality

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A new network perspective in the study of labour markets

A new network perspective in the study of labour markets

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作者： Lloret-Climent, Miguel Nescolarde-Selva, Josué Antonio Mora-Mora, Higinio Signes-Pont, María Teresa Department of Applied Mathematics University of Alicante Alicante Spain Specialized Processors Architecture Laboratory Department of Computer Technology and Computation University of Alicante Alicante Spain

Graph theory is a fundamental tool in the study of economic issues, and input–output tables are one of the main examples. We use the interpretation of the labour market through networks to obtain a better understanding on its overall functioning. One benefit of the network perspective is that a large body of mathematics exists to help analyze many forms of networks models. If an economic system has obtained a suitable model, then it becomes possible to utilize relevant mathematical tools, such as graph theory, to better understand the way the labour market works. This interpretation allows us to employ the concepts of coverage, invariance, orbit and the structural functions supply–demand and competition and interpret them from the point of view of circular flow. In this paper, we aim to interpret the labour market through networks that are represented by graphs and where characteristic concepts of chaos theory such as cover, invariance and orbits interact with the concept circular flow. Finally, an example of this approach to labour markets is described, and some conclusions are drawn. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

关键词： Chaos theory

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On the performance of up✶/down✶ routing 4th

On the performance of up✶/down✶ routing

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4th International Workshop on Communication, architecture and Applications for Network-based Parallel Computing, CANPC 2000

作者： Alfaro, Francisco J. BermÚdez, Aurelio Casado, Rafael Duato, José Quiles, Francisco J. Sanchez, José L. Department of Computer Engineering and Technology University of Murcia Murcia30071 Spain Department of Computer Science University of Castilla-La Mancha Albacete02071 Spain Department of Information Systems Computer Architecture Technical University of Valencia Valencia46071 Spain

ISBN: (纸本)3540678794

Networks of Workstations (NOWs) are usually arranged as a set of interconnected switches with hosts connected to switch ports through interface cards. Several commercial interconnects for high-speed NOWs use up✶/down✶ routing. Every time the network is powered on or the topology is changed, a configuration algorithm is executed, which provides information about the topology and generates a directed graph. Routing tables are computed from this directed graph. There are several ways to obtain the directed graph. The most frequent way is by means of algorithms based on minimum-depth spanning-trees (MDST) or propagation-order spanning-trees (POST). This paper shows that, for most networks, graphs obtained by means of these methods can be improved in order to achieve higher network performance. © Springer-Verlag Berlin Heidelberg 2000.

关键词： Directed graphs

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A Provably Secure Lightweight Key Agreement Protocol for Wireless Body Area Networks in Healthcare System

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IEEE Transactions on Industrial Informatics 2023年第2期19卷 1683-1690页

作者： Zia, Maryam Obaidat, Mohammad S. Mahmood, Khalid Shamshad, Salman Saleem, Muhammad Asad Chaudhry, Shehzad Ashraf Comsats University Islamabad Department of Computer Science Sahiwal57000 Pakistan University of Jordan King Abdullah Ii School of Information Technology Amman11942 Jordan University of Science and Technology Beijing School of Computer and Communication Engineering Beijing100083 China Amity University UP Noida201301 India National Yunlin University of Science and Technology Future Technology Research Center Yunlin64002 Taiwan The University of Lahore Department of Software Engineering Lahore54590 Pakistan Abu Dhabi University Department of Computer Science and Information Technology College of Engineering Abu Dhabi United Arab Emirates Nisantasi University Department of Computer Engineering Faculty of Engineering and Architecture Istanbul34398 Turkey

Wireless Body Area Network (WBAN) is a vital application of the Internet of Things (IoT) that plays a significant role in gathering a patient's healthcare information. This collected data helps special professionals like doctors or physicians analyze patients' health status to cure different diseases. However, collecting such information from an insecure channel can be threatening due to the potential security threats. Therefore, it is crucial to secure this sensitive information. This article proposes a secure and lightweight authentication protocol for WBAN. The devised protocol is scalable, secure, and lightweight compared to various relevant competing protocols. The informal security analysis shows that the designed protocol is lightweight, secure, and efficient in resisting various major attacks. The performance analysis demonstrates our protocol's supremacy over various competing protocols in terms of computation and communication costs, inducing efficiency of 20.3% and 12.3%, respectively. Moreover, the practical performance of the designed protocol from the network point of view is measured using the widely recognized NS3 simulation tool. © 2005-2012 IEEE.

关键词： Authentication

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Design and implementation of digital campus based on LBS and WSN

Design and implementation of digital campus based on LBS and...

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2010 International Conference on computer and Information Application, ICCIA 2010

作者： Jiang, Yunchen Wan, Shanshan Department of Laboratory and Equipment Management Beijing Institute of Technology Beijing China Computer and Network Department Beijing University of Civil Engineering and Architecture Beijing China

ISBN: (纸本)9781424485963

Digital campus is one important part to the digital earth and Internet of Things. Based on the analysis of the LBS performance, structure, function and the present research status of digital campus we propose a digital campus design project based on LBS and we discuss the architecture. We take a campus as a simulation implement. Map engine is the tool of implementation of the LBS platform. GIS is used here to give the navigation and the platform is combined and advanced with virtual reality technology such as VRML. Though the platform we achieve a terminal location, map query, three-dimensional browsing, navigation and guides tracking and monitoring, and other functions. The LBS platform improves the work and study efficiency of teachers and students, accelerates the construction and application of digital campus, and provides a new idea for the future development of digital campus system. © 2010 IEEE.

关键词： Teaching

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Define TBT scorm-based tool for the real-time production of learning objects in WBDL

Define TBT scorm-based tool for the real-time production of ...

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114th Annual ASEE Conference and Exposition, 2007

作者： Moslehpour, Saeid Sadeghi, Ramin Hill, Jonathan Abu-aisheh, Akram University of Hartford United States Electrical and Computer Engineering Department College of Engineering Technology and Architecture University of Hartford United States Power and Water University of Technology Iran Department of Electrical and Computer Engineering University of Hartford United States

The first decade of the twenty first century is witnessing the convergence of three strands of development in e-learning which had relatively independent origins during the 1990s. The first strand is rise of e-learning technology as a recognized industry. This was fostered by the rise of the Internet and the widespread adoption of e-learning software and courses, especially Learning Management Systems such as WebCT and Blackboard in the education sector, and PWUTVU, Click2Learn, and others in corporate training. This strand grew predominantly from software innovation around proprietary e-learning systems which found its way into the wider market through venture capital investment. The second strand arose from attempts to create open standards for e-learning software and content, driven by specification organizations such as IMS Global Learning Consortium, AICC and ADL, and relevant committees of international standards bodies such as the IEEE LTSC. Despite the potential relevance of these open standards for the proprietary e-learning systems of the first strand, the consistent adoption of e-learning standards by LMS vendors was slow, particularly in the education sector. There have been exceptions which crossed the boundaries between the strands identified above. However, during the late 1990s the major impact of each strand tended to occur without respect to the others. E-learning technology rose to fame largely without standards or open source software;e-learning standards were initially developed without widespread vendor adoption or open source software examples. While the open source community focused its major efforts at basic infrastructure such as operating systems and web servers, examples such as Moodle10provide a SCORM add-in module. User can use some external applications to create SCORM compliant materials for Moodle. The production of educational multimedia content to be distributed by e-learning systems is growing in every context. The competition amo

关键词： Real time systems

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Cooperative Co-evolution of multilayer pereeptrons

Cooperative Co-evolution of multilayer pereeptrons

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7th International Work-Conference on Artificial and Natural Neural Networks, IWANN 2003

作者： Castillo, P.A. Arenas, M.G. Merelo, J.J. Romero, G. Department of Architecture and Computer Technology University of Granada Campus de Fuentenueva GranadaE. 18071 Spain

ISBN: (纸本)3540402101

Co-evolution is a posible solution to the problem of simultaneous optimization of artificial neural network and training agorithm parameters, due to its ability to deal with vast search spaces. Moreover, this scheme is recommendable when the optimization problem is decomposable in *** this paper an approach to cooperative co-evolutionary optimisation of multilayer pereeptrons, that improves the G-Prop genetic back-propagation algorithm, is presented. Obtained results show that this co-evolutionary version of G-Prop obtains similar or better results needing much fewer training epochs and thus using much less time than the sequential versions. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Multilayers

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Boosting Solar Energy Production of a Building using New Architectural Design

Boosting Solar Energy Production of a Building using New Arc...

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2023 International Conference on Computational Intelligence and Sustainable Engineering Solution, CISES 2023

作者： Khalvati, Ladan Sheykhshabani, Zahra Ebrahimi Balal, Afshin Arbabzadeh, Negin Texas Tech University Department of Design Lubbock United States Pars Institute of Art and Architecture Architecture Department Tehran Iran Texas Tech University Department of Electrical and Computer Engineering Lubbock United States College of Architecture Iran University of Science and Technology Tehran Iran

ISBN: (纸本)9798350323917

Fossil fuels and air pollution are significant problems nowadays, causing many countries to increase their investments in renewable energy development. As the world's energy demand grows, governments are looking into and developing alternative energy sources like solar energy. Solar energy is one of the most promising solutions to address the above problem. In addition, the development of sustainable design in architecture has become a crucial factor in the construction industry as the world faces the challenges of climate change and diminishing fossil fuel reserves. Architects are now seeking innovative ways to incorporate sustainable and renewable energy sources into their designs. Solar energy, as a sustainable and clean energy source, has gained significant attention in recent years. It offers an opportunity to reduce the dependence on non-renewable energy sources and lower carbon emissions. Additionally, the use of solar technology in architectural designs can enhance the aesthetic appeal of buildings while providing energy efficiency. Building-integrated photovoltaic systems have emerged as a popular solution that allows for the integration of photovoltaic cells into the structure of buildings. In this paper, a new architectural design for a building in Tehran is proposed, which leads to the increase of generated solar energy. Needless to say, the designs must be beautiful to look at, functional, and good for the environment. Grasshopper and rhino are utilized to demonstrate the design. In addition, System Advisor Model (SAM) is implemented to study the economic analysis of the solar photovoltaic system planted on the building. The simulation result indicates that with the new design, the power production is increased from 21437 kWh to 69484 kWh. In addition, by using the proposed system in comparison with fossil fuel power plants, a huge amount of air pollution is will be removed from the air. © 2023 IEEE.

关键词： Solar energy

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HRaidTools: An on-line suite of simulation tools for heterogeneous RAID systems 10

HRaidTools: An on-line suite of simulation tools for heterog...

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3rd International ICST Conference on Simulation Tools and Techniques, SIMUTools 2010

作者： Gonzalez, J.L. Cortes, Toni Delgado-Meraz, Jaime Piedad-Rubio, Ana Maria Cd. Valles Institute of Technology S.L.P. Mexico Department of Computer Architecture and Barcelona Supercomputing Center Spain

ISBN: (纸本)9789639799875

This work presents HRaidTools, an on-line suite of tools for simulating Heterogeneous RAID systems, which includes tools such as a RAID-designer, an I/O synthetic workload generator, a friendly simulation launcher and results collector. This suite has been designed to reduce or even eliminate the errors in simulations produced by the humans and the problems arise when using the simulator in different environments. In addition, HRaidTools also includes an Adaptive Collaborative Work architecture based on profiles of social networks, which have been designed for handling and sharing simulation contents such as experiments, configurations, workloads, results and graphs while following the common hierarchies in research groups. Finally, this suite includes several heterogeneous data distribution policies and redundancy levels unavailable in current RAID simulators. © Copyright 2010 ICST.

关键词： Software engineering

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The FaceChannel: A Fast and Furious Deep Neural Network for Facial Expression Recognition

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SN computer Science 2020年第6期1卷 321页

作者： Barros, Pablo Churamani, Nikhil Sciutti, Alessandra Cognitive Architecture for Collaborative Technologies Unit Istituto Italiano di Tecnologia Genoa Italy Department of Computer Science and Technology University of Cambridge Cambridge United Kingdom

Current state-of-the-art models for automatic facial expression recognition (FER) are based on very deep neural networks that are effective but rather expensive to train. Given the dynamic conditions of FER, this characteristic hinders such models of been used as a general affect recognition. In this paper, we address this problem by formalizing the FaceChannel, a light-weight neural network that has much fewer parameters than common deep neural networks. We introduce an inhibitory layer that helps to shape the learning of facial features in the last layer of the network and, thus, improving performance while reducing the number of trainable parameters. To evaluate our model, we perform a series of experiments on different benchmark datasets and demonstrate how the FaceChannel achieves a comparable, if not better, performance to the current state-of-the-art in FER. Our experiments include cross-dataset analysis, to estimate how our model behaves on different affective recognition conditions. We conclude our paper with an analysis of how FaceChannel learns and adapts the learned facial features towards the different datasets. © 2020, The Author(s).

关键词： Affective computing Convolutional neural network Facial expression recognition

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