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3rd International Conference on Materials science and Information Technology, MSIT 2013

作者： Di, Ju Xing Zhao, Jian Guang Si, Ya Chao Fan, Jing Jin Department of Computer Science Hebei Institute of Architecture Civil Engineering Zhangjiakou China

ISBN: (纸本)9783037857700

This paper studied GPS location information of the collection, processing, GPRS data transmission network, intelligent building security system features. Based on this techniques, we designed an embedded GPS/GPRS intelligent building security system, which is composed of ARM9 microprocessor S3C2410, GPS/GPRS module and some peripheral devices. The system is running under Linux OS. The characteristics of the system are flexible, powerful, and high practicality. © (2013) Trans Tech Publications, Switzerland.

关键词： Security systems

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A Template for Digital Human Representation in Digital Twin Simulations of Social Human-Robot Interaction 4

A Template for Digital Human Representation in Digital Twin ...

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4th International Conference on Electrical, computer, Communications and Mechatronics Engineering, ICECCME 2024

作者： Zebisch, Raoul Schilp, Johannes Institute of Applied Computer Science University of Augsburg Chair of Digital Manufacturing Augsburg Germany

ISBN: (纸本)9798350391183

The virtual validation of a robot's social capability using digital twins requires assessing the perceived quality of human-machine interaction, reflected through various observ-Able human parameters that influence the comfort experienced during the interaction. Due to this reason, the detailed digital representation of humans in such simulations is as essential as it is difficult to achieve. This paper introduces a template for digital human representation in a digital twin intended for simulation scenarios of social human-robot interaction. Parameters and properties are grouped into categories for physical behavior, physiological condition (including health), social-cognitive behav-ior, visualization, and sensory capabilities describing a simplified digital representation of a real-world person. The proposed model parameters are chosen based on a literature review of published work regarding digital twin solutions for applications in social robotics with a focus on human digital representation. © 2024 IEEE.

关键词： Digital elevation model

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On the cost-effectiveness of PRAMs 3

On the cost-effectiveness of PRAMs

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Proceedings of the Third IEEE Symposium on Parallel and Distributed Processing

作者： Abolhassan, F. Keller, J. Paul, W.J. Institute for Computer Architecture and Parallelism Computer Science Dept. Universitat des Saarlandes Saarbrucken W-6600 Germany

ISBN: (纸本)0818623101

The authors introduce a formalism which allows to treat computer architecture as a formal optimization problem. They apply this to the design of shared memory parallel machines. Present computers of this type support the programming model of a shared memory. But simultaneous access to the shared memory by several processors is in many situations processed sequentially. Asymptotically good solutions for this problem are offered by theoretical computer science. The authors modify these constructions under engineering aspects and improve the price/performance ratio by roughly a factor of 6. The resulting machine has surprisingly good price/performance ratio even if compared with distributed memory machines. For almost all access patterns of all processors into the shared memory, access is as fast as the access of only a single processor. The re-engineered machine is based on Fluent Machine. © 1991 IEEE.

关键词： Cost effectiveness

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DLPlib： A Library for Deep Learning Processor

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Journal of computer science & Technology 2017年第2期32卷 286-296页

作者： Hui-Ying Lan Lin-Yang Wu Xiao Zhang Jin-Hua Tao Xun-Yu Chen Bing-Rui Wang Yu-Qing Wang Qi Guo Yun-Ji Chen State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China Microprocessor Research Center Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Department of Computer Science University of Science and Technology of China Hefei 230026 China

Recently, deep learning processors have become one of the most promising solutions of accelerating deep learning algorithms. Currently, the only method of programming the deep learning processors is through writing assembly instructions by bare hands, which costs a lot of programming efforts and causes very low efficiency. One solution is to integrate the deep learning processors as a new back-end into one prevalent high-level deep learning framework （e.g., TPU （tensor processing unit） is integrated into Tensorflow directly）. However, this will obstruct other frameworks to profit from the programming interface, The alternative approach is to design a framework-independent low-level library for deep learning processors （e.g., the deep learning library for GPU, cuDNN）. In this fashion, the library could be conveniently invoked in high-level programming frameworks and provides more generality. In order to allow more deep learning frameworks to gain benefits from this environment, we envision it as a low-level library which could be easily embedded into current high-level frameworks and provide high performance. Three major issues of designing such a library are discussed. The first one is the design of data structures. Data structures should be as few as possible while being able to support all possible operations. This will allow us to optimize the data structures easier without compromising the generality. The second one is the selection of operations, which should provide a rather wide range of operations to support various types of networks with high efficiency. The third is the design of the API, which should provide a flexible and user-friendly programming model and should be easy to be embedded into existing deep learning frameworks. Considering all the above issues, we propose DLPIib, a tensor-filter based library designed specific for deep learning processors. It contains two major data structures, tensor and filter, and a set of operators including basic neur

关键词： deep learning processor API library DLPlib

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Predictive-Reactive Scheduling to Increase Robustness of Production Systems 4

Predictive-Reactive Scheduling to Increase Robustness of Pro...

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4th International Conference on Electrical, computer, Communications and Mechatronics Engineering, ICECCME 2024

作者： Pleier, Florian Schilp, Johannes Institute of Applied Computer Science University of Augsburg Chair of Digital Manufacturing Augsburg Germany

ISBN: (纸本)9798350391183

In order to enhance the robustness and flexibility of production systems and improve their responsiveness to unforeseen events, it is essential to devise appropriate strategies. This paper aims to develop and evaluate a predictive-reactive scheduling method to increase the robustness of production planning and control. As disruptions can often be anticipated, but not always prevented, a scheduling method that combines pre-dictive planning and reactive control reduces the impact of such occurrences on the production system. In order to achieve this, a real-world use case is introduced, and the relevant disruptions are identified. To address the predictive aspect of the methodology, an allocation problem and subsequently a sequencing problem are first solved using heuristics and mathematical optimization in order to schedule the jobs. Reactive scheduling strategies are then developed and implemented into a discrete event simulation model for the purpose of evaluating the improvement of the results. The results demonstrate a significant enhancement in production planning, as evidenced by more balanced processing times and a sufficient buffer for rescheduling. Therefore, this method enables the generation of a robust and cost-minimized production plan. By implementing the rescheduling strategy for production control, the impact of disruptions are minimized, as evidenced by the obtained key figures which serve as a robustness indicator. © 2024 IEEE.

关键词： Advanced Manufacturing Automated Production Planning and Control Production Disruption Robustness Simulation

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BOFAR: Buffer occupancy factor based adaptive router for mesh NoCs

BOFAR: Buffer occupancy factor based adaptive router for mes...

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4th International Workshop on Network on Chip architectures, NoCArc 2011, in Conjunction with the 44th Annual IEEE/ACM International Symposium on Microarchitecture, MICRO44

作者： Jose, John Shankar, J. Shiva Mahathi, K.V. Kumar, Damarla Kranthi Mutyam, Madhu Computer Architecture and Systems Laboratory Department of Computer Science and Engineering Indian Institute of Technology Madras Chennai-36 India

ISBN: (纸本)9781450309479

If the route computation operation in an adaptive router returns more than one output channels, the selection strategy chooses one from them based on the congestion metric used. The effectiveness of a selection strategy depends on what metric is used to identify congestion and how precisely that metric captures the actual congestion. The number of cycles a flit stays in a router is a direct indication of the contention level of the output port it desires to move out. We propose buffer Occupancy Factor based Adaptive Router (BOFAR), wherein the history of cycles spent by flits in buffers is used as the congestion metric. BOFAR outperforms the baseline architectures built on minimal odd-even adaptive router model with conventional selection strategies like count of free downstream virtual channels at reachable neighbors, and fluidity of buffers in downstream neighbors. Our experiments on 4x4 mesh NoC with various synthetic traffic patterns show that BOFAR exceeds the performance of best baseline adaptive router with 21% average and 78% maximum latency reduction at saturation load. The reduced average packet latency, increased buffer fluidity fairness, and increased saturation point of BOFAR with minimal overhead in area, power, and wiring makes it a promising alternative to existing adaptive routers in mesh NoCs. © 2011 ACM.

关键词： Network-on-chip

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Way sharing set associative cache architecture

Way sharing set associative cache architecture

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25th International Conference on VLSI Design, VLSID 2012 and the 11th International Conference on Embedded Systems

作者： Janraj, C.J. Kalyan, T. Venkata Warrier, Tripti Mutyam, Madhu Computer Architecture and Systems Laboratory Department of Computer Science and Engineering Indian Institute of Technology Madras Chennai 600036 India

ISBN: (纸本)9780769546384

In order to minimize the conflict miss rate, cache memories can be organized in set-associative manner. The downside of increasing the associativity is increase in the per access energy consumption. In conventional n-way set-associative caches, irrespective of the set-wise demand, each set has n cache ways at its disposal, but cache sets may exhibit nonuniform demand for these cache ways. Exploiting this property, we propose a novel cache architecture, called way sharing cache, wherein by allowing sharing of cache ways among a pair of cache sets, we obtain dynamic energy savings as high as 41% in DL1 cache with negligible performance penalty. © 2012 IEEE.

关键词： Energy conservation

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Wireless Self-Organizing Backbone Mesh Network (WiSoNet)

Wireless Self-Organizing Backbone Mesh Network (WiSoNet)

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IEEE Annual Conference on Pervasive Computing and Communications Workshops (PerCom)

作者： Heiko Kopp Martin Krohn Robil Daher Djamshid Tavangarian Institute of Computer Science Chair of Computer Architecture University of Rostock Germany

Despite significant advances in parts of the physical layer, available WLAN systems still cannot offer wired equivalent bandwidth. In this paper we propose a novel concept, called wireless self-organizing backbone mesh network (WiSoNet), for a wireless network infrastructure as a backbone and describe its long-term potential. WiSoNet combines two major IEEE standards - IEEE 802.11 (WLAN) and IEEE 802.16 (WiMAX) to build a heterogeneous wireless network topology. To aggregate bandwidth of multiple WLAN connections we introduce a hybrid network solution that uses ad-hoc mechanisms. Further, to decrease the amount of administration and resource management, we use specific algorithms for the self-organization of routing and channels assignment. Since the WiMAX-based supply network already supports quality of service, we propose mechanisms to extend the QoS to end users. Accordingly, we present our prototypical system implementation and discuss the issues we will focus on in the future

关键词： Spine Mesh networks Wireless LAN Bandwidth Wireless mesh networks WiMAX Quality of service Physical layer Network topology Aggregates

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Novel handoff concepts for roadside networks using mechanisms of IEEE 802.11k & IEEE 802.11v

Novel handoff concepts for roadside networks using mechanism...

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International Conference on Ultra Modern Telecommunications and Workshops (ICUMT)

作者： Robert Meschke Martin Krohn Robil Daher Alexander Gladisch Djamshid Tavangarian Chair of Computer Architecture Institute of Computer Science University of Rostock Germany

The employment of real-time capable handoff mechanisms for high-speed mobile stations represents one of the key challenges for adopting IEEE 802.11 technology as a basic communication technology for roadside networks in vehicular communication networks (VCNs), especially for real-time value added services such as VoIP. To enable real-time capable handoff mechanism in such environments, the mobility awareness of associated stations (STAs) can be used to significantly reduce the scanning delays within handoff process. Although IEEE 802.11k and 802.11v define several mechanisms that could be used to enhance the handoff process with location awareness functionality, none of the known handoff solutions combine those mechanisms in a unified standard-conform handoff solution. This paper introduces a set of three novel handoff concepts that combine mechanisms of 802.11k,r,v in order to provide real-time capable handoff mechanisms that can be used for VCNs' applications, especially in combination with value added services. All the proposed handoff mechanisms in this paper are vender-independent from STAs perspective, i.e., for all STAs supporting 802.11k,r,v standards.

关键词： Manuals Irrigation Global Positioning System

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A wireless architecture for telemedicine

A wireless architecture for telemedicine

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Workshop on Positioning, Navigation and Communication, WPNC

作者： Martin Krohn Heiko Kopp Djamshid Tavangarian Institute of Computer Science Chair of Computer Architecture University of Rostock Germany

In respect to the demographic change, currently taking place in Germany, especially in the federal state of Mecklenburg-Vorpommern, the project "AGnES" was started by the University of Greifswald (Faculty of Medicine) and the University of Rostock (Faculty computer science and Electrical Engineering). The project aims to develop an infrastructure helping to assist physicians. The essential of the project is the Community Medicine Nurse (CMN), performing home visits, physical examinations and monitoring of patients. During the examinations the CMN is in contact with the supervising family doctor. Therefore, a data connection transmitting telemedical, audio and video data has to be established. Our work handles an automatical antenna positioning system designed for the mobile WiMAX subscriber stations, which are part of the communication architecture.

关键词： Telemedicine computer architecture Demography computer science Patient monitoring computerized monitoring Contacts Mobile antennas WiMAX Mobile communication

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