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Multidimensional adaptive sampling and reconstruction for realistic image based on BP neural network 8th

Multidimensional adaptive sampling and reconstruction for re...

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8th international conference on Image and Graphics, ICIG 2015

作者： Liu, Yu Zheng, Changwen Wu, Fukun Science and Technology on Integrated Information System Laboratory Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9783319219622

A novel adaptive sampling and reconstruction algorithm is presented to address the noise artifacts of Monte Carlo rendering. BP neural network is adopted to estimate per pixel error that guides sampling rate in the multidimensional spaces. In sampling stage, coarse samples are firstly generated to train BP network. Then per pixel error is estimated by the BP predicted value. Additional samples are distributed to the slices of pixels which have large errors. These slices are extracted through a heuristic distance. A warping procedure is then carried out to remove individual light paths that result in significant spikes of noise. In reconstruction stage, the final image is reconstructed by filtering each pixel with appropriate anisotropic filter. Filters with small scales are used to keep clarity while the large ones smooth out noise. Compared to the state-of-the-art methods, experimental results demonstrated that our algorithm achieves better results in numerical error and visual image quality. © Springer international Publishing Switzerland 2015.

关键词： Pixels

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Middleware-based support for reco nfigurable mechatronic systems 2

Middleware-based support for reco nfigurable mechatronic sys...

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2nd IFAC conference on Embedded systems, computer Intelligence and Telematics, CESCIT 2015

作者： Priego, R. Agirre, A. Estévez, E. Orive, D. Marcos, M. Dept. Ingeniería de Sistemas y Automática ETSI Bilbao UPV/EHU Spain IK4-Ikerlan Arrasate Spain Dept. Ingeniería Electrónica y Automática EPS de Jaén Spain

Current automation systems demand flexibility and efficiency in order to face the constant changes of the application in terms of dynamism, complexity and extensibility. To deal with these demanded requirements, automation systems have been provided with reconfiguration techniques that have allowed them to reschedule the production, to recover from a faulty situation and to update the controller at run time, among others. This paper presents a middleware architecture which provides automation systems with the necessary mechanisms to monitor and manage several types of QoS requirements that must be assured during system operation. The design of the middleware is based on a meta-model of the automation system, composed by a set of mechatronic components containing the information related to the hardware platform, the software they implement and their internal state that allows the middleware to take decisions in order to perform the different types of reconfiguration. © 2015, IFAC (international Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Quality of service

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A middleware framework for leveraging local and global adaptation in IT ecosystems 27

A middleware framework for leveraging local and global adapt...

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27th international conference on Software Engineering and Knowledge Engineering, SEKE 2015

作者： Park, Soojin Park, Young B. Graduate School of MOT Sogang University Seoul Korea Republic of Dept. of Computer Science and Engineering Dankook University Seoul Korea Republic of

ISBN: (纸本)1891706373

Impressive advancements in recent smart devices suggests that the direction of software engineering's future is in development of system of systems (SoS). Among many concepts that emerged from SoS, we focus on IT Ecosystem-a type of SoS that evolves itself in response to unplanned environment changes. Maintaining autonomy of its participant systems while preserving controllability over entire ecosystem involves various challenges that we need to solve. In this paper, we propose a middleware framework for supporting global adaptation of IT Ecosystem which guides how to determine the optimal adaptation strategy for configuring available systems to satisfy local constraints while achieving global goals. To support the selection of optimal set of participant systems, we have applied genetic algorithm. The effectiveness of our approach is evaluated through analyzing the results of a simulated unmanned forest management IT Ecosystem running the proposed framework while undergoing various environmental changes. Copyright © 2015 by KSI Research Inc. and Knowledge systems Institute Graduate School.

关键词： Genetic algorithms

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TQS-DP:A Lightweight and Active Mechanism for Fast Scheduling Based on WSN Operating system Tiny OS

TQS-DP:A Lightweight and Active Mechanism for Fast Schedulin...

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第27届中国控制与决策会议

作者： Zhang Jing Xue Leng Fan Hongbo Cui Yi Computer Technology Application Key Lab of Yunnan Province Kunming University of Science and Technology Faculty of Information Engineering and Automation Kunming University of Science and Technology Yunnan Academy of Scientific & Technical Information

ISBN: (纸本)9781479970186

Sensor technology is a key technology in the field of Internet of Things(Io T),which has been applied to the research on task scheduling of embedded systems in wireless sensor networks(WSN),it affects the existence and uniqueness of the real-time interactive behavior for Io T service,as well as the energy consumption modeling and evaluation of WSN deployment on the background of real-time embedded control *** this paper,through further studies on the kernel scheduling mechanism of Tiny OS,aiming at its shortcomings,a lightweight scheduling strategy- quick sort scheduling strategy based on dynamic priority of tasks queue(TQS-DP) was *** strategy changes the priority of tasks dynamically,and quickly put them into queues with quick ***,the timeout management of tasks is taken into *** the priority level of the task is high or low,it can be executed in due ***,the simulation experiments show that our method cannot only improve the task throughput of the whole wireless sensor networks(WSNs),but also effectively reduce the energy consumption of system,in order to ensure the real-time performance,determinacy and casuality dependency of task scheduling.

关键词： WSN Tiny OS scheduling mechanism dynamic priority energy consumption real-time

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Water distribution network optimization using genetic algorithms 13

Water distribution network optimization using genetic algori...

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13th Annual international Industrial Simulation conference 2015, ISC 2015

作者： Fajdek, Bartlomiej Stachura, Marcin Studzihski, Jan Warsaw University of Technology Institute of Automatic Control and Robotics Ul. Sw. A. Boboli 8 Warsaw02-525 Poland Polish Academy of Science Institute of System Research Ul. Newelska 6 Warsaw01-447 Poland

ISBN: (纸本)9789077381892

This paper presents the description of the IT solutions which have been applied in a computer simulation system for optimal pump switching. The Genetic Algorithm (GA) was used to solve the altered multi-objective optimization model. Nowadays, genetic algorithms (GA) have becomes one of the preferred water system designed optimization technique for many researchers (Cheung 2003;Prasad et al. 2004;Zheng 2013;Jin Xi et al. 2008;Kurek and Ostfeld 2013). The main reason is that GA (Golberg 1989) have the ability to deal with complex nonlinear optimization problems. The GA is integrated with the hydraulic simulation programme called WD S (Water Distribution system). The description of the implementation of the WD S software is provided in (Fajdek et al. 2014;Stachura et al. 2012). The WDS software can be used to design new networks, analyse existing networks, perform hydraulic simulation of the networks etc. In (Fajdek et al. 2014) the WDS system performance was presented using simple example of rehabilitation process applied to the hypothetical network. In this paper, a new algorithm for pump scheduling was presented and applied to the real water distribution system of Glubczyce city. Pump scheduling is one of the most important tasks of the operation of a water distribution system. Moreover, it is much more complex problem than rehabilitation process. The main goal was to schedule N pumps in water distribution system over a time period, in our case 24 hours. In proposed solution we had to use a more complex solutions in both math and programming than in the solution applied to rehabilitation process (Fajdek et al. 2014). Developed algorithm which is the part of WDS software for complex management of communal waterworks is under development at the Warsaw University of Technology, Institute of Automatic Control and Robotics, in cooperation with the systems Research Institute of Polish Academy of sciences.

关键词： Pumps

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Spatio-temporal Analysis of the Street Crime hotspots in faisalabad city of Pakistan 23

Spatio-temporal Analysis of the Street Crime hotspots in fai...

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23rd international conference on Geoinformatics, Geoinformatics 2015

作者： Khalid, Shoaib Wang, Jiechen Shakeel, Muhammd Nan, Xia Department of Geographic Information Science Nanjing University Nanjing China Jiangsu Provincial Key Laboratory of Geographical Information Science and Technology Nanjing University Nanjing China Department of Geography Government College University Faisalabad Pakistan

ISBN: (纸本)9781467376631

The Geographic Information system has become an important and useful tool in the implementation of crime control and monitoring activities in crimes affected areas and it has the ability to examine spatial relationships of phenomena. The present study has been taken up for detecting the hotspots of street crimes and developing the crime control strategies in the Faisalabad city of Pakistan. The spatial patterns of urban street crimes were analyzed. The crime reports of 2012 were geocoded and the crime maps were prepared in ArcGIS 10. The strategic crime analysis was done in a series of meetings with police department and crime controlling strategies were built. The Compstat model with some modifications was followed for the accountability and performance management of the police department. Operational analysis was carried out for resource allocations and deployment. After implementing crime control strategies it has been observed that there was a remarkable reduction in the street crimes. The crime data of 2013 was plotted on map and the hotspot changing patterns were observed. © 2015 IEEE.

关键词： Crime

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A Location-Based Personalized Focused Search system for Physically Challenged People

A Location-Based Personalized Focused Search System for Phys...

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2015 international Industrial Informatics and computer Engineering conference(IIICEC 2015)

作者： Xin Shen Wei Wang Junyi Huang Yue Wu Zhejiang Provincial Key Laboratory of Service Robot College of Computer ScienceZhejiang University

Physically Challenged people are a special part of society,which need more *** of the huge differences in physical conditions,qualities of life,locations and personal backgrounds,there exists a lot of challenges for disabled people searching related information and receive professional and personal *** paper proposes a novel focused search system for physically challenged people,which uses the location information and provides the more effective search *** search system consists of two function models,one is a focused search engine,and the other is a map of the related *** search engine is designed for the multimedia files of disabled recovery,including words,pictures,audios and *** map of related institutions offers the location-based service showing the near occasion addresses intuitively,where the physically challenged people may get professional *** this location-based focused search system,the special community has an easy access to the technical database and relevant *** system is highly significant in the rehabilitation information acquisition field.

关键词： Focused Search system Location-Based service Personalized Retrieval

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Lightweight virtual machine checkpoint and rollback for long-running applications 15th

Lightweight virtual machine checkpoint and rollback for long...

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15th international conference on Algorithms and Architectures for Parallel Processing, ICA3PP 2015

作者： Cui, Lei Hao, Zhiyu Li, Lun Fei, Haiqiang Ding, Zhenquan Li, Bo Liu, Peng Institute of Information Engineering Chinese Academy of Sciences Beijing100093 China School of Computer Science and Engineering Beihang University Beijing100191 China

ISBN: (纸本)9783319271361

Checkpoint/rollback is an effective approach to guarantee that the long-running applications can be completed in the face of failures. However, it does not come for free. The application suffers from long downtime and performance penalty when it is being checkpointed or rolled back, which result in extra overhead on application execution time. This problem would get worse in virtualized environment mainly due to the heavyweight of virtual machine. This paper proposes warmCR, a lightweight checkpoint/rollback system for virtual machine, which aims to reduce its own extra overhead on application execution time. First, warmCR employs the redirect-on-write approach to create disk check- point and leverages the copy-on-write method to lively create memory checkpoint, so that both the downtime and checkpoint duration are reduced. Second, we propose a working set based rollback approach to provide short downtime without compromising application performance. Third, workload-aware batched processing is proposed to achieve trade- off between downtime and performance loss. In addition to presenting warmCR, we detail its implementation, and provide extensive experimental results to prove its efficiency and effectiveness. © Springer international Publishing Switzerland 2015.

关键词： Virtual machine

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s’s elderly population—a case study in learners of the senior citizens academy in a city of Taiwan 1st

s’s elderly population—a case study in learners of the sen...

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1st international conference on Human Aspects of IT for the Aged Population, ITAP 2015 Held as Part of 17th international conference on Human-computer Interaction, HCI international 2015

作者： Wang, Ming-Wei Lin, Yu-Chin Citizens Academy Lecturer in Chiayi Chiayi Taiwan Director of Home-Service Management Center Chiayi Christian Hospital Chiayi Taiwan

ISBN: (纸本)9783319208916

Mark Zuckerberg founded Facebook site in 2004, and open to e-mail applications use in 2006. The global active users of the Facebook site surpassed one billion people on September 14th, 2012. It spent 13 years that the users of the Google site founded in 1998 surpassed one billion people in 2011. It spent 8 years that the Facebook site to do so. The official statistics of the Facebook site represented that there are about 15 million users visited the Facebook site monthly and there are about 12 million people visited the site by using the mobile Internet devices in the fourth quarter of 2013 in Taiwan. In the same time, there are about 11 million users visited the Facebook site daily and there are about 8.5 million people visited the site by using the mobile Internet devices in Taiwan. Taiwan is a mature market for the Facebook site, the website penetration is the highest in the world. Taiwan in where the Facebook site utility rate is so high faces the rapidly aging population issue. According to the statistics from Ministry of the Interior, Republic of China, the ratio of the population over 65 years old has exceeded 7% in 1993. It means that Taiwan is the aging society. The ratio of the population over 65 years old is 11.90% in October, 2014. With the statistics from Council for Economic Planning and Development in the Republic of China Executive Yuan, the ratio of Taiwan elderly population will exceed 14% in 2018, and Taiwan will be the aged society. The ratio of Taiwan elderly population will increase quickly from 2014 to 2025 because of the effect of the postwar baby boom. This investigation using action research discusses the elderly people studying IT lessons in the Senior Citizens Academy of a city in Taiwan. How do they use the Facebook site? We found that the elderly people is not the main usage group of the Facebook site, but using the Facebook site impacts positively for their learning, social networking, and the interactions among their family members. T

关键词： Utility rates

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Improved Semantic-based service Matching Algorithm

Improved Semantic-based Service Matching Algorithm

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2015 international conference on computer science and Environmental Engineering(CSEE 2015)

作者： K.Li H.Yu Y.P.Han Y.H.Lai J.Zhang Q.W.Zeng Key Laboratory for Neuro Information of Ministry of Education School of Life Science and TechnologyUniversity of Electronic Science and Technology of China

This study applies a semantic-based technique to a web service,introduces a hierarchical relationship based on both the traditional concept and a similarity matching algorithm,and proposes a semantic-based matching algorithm for web *** addition,by considering users' special requests on the functional interface and parameter "preference" degree,we propose a weighting Input/Output matching algorithm,which builds a comprehensive service matching algorithm and improves the coverage ratio and accuracy ratio of the service discovery system.

关键词： web service discovery semantic service matching algorithm medical service application Introduction

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