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检索条件"任意字段=2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012"

共 812 条记录，以下是611-620 订阅

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Revenue estimation and quantification in sponsored search auctions: An inductive learning approach

Revenue estimation and quantification in sponsored search au...

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2nd international conference on Data Engineering and Management, ICDEM 2010

作者： Kumari, Madhu Bharadwaj, Kamal K. School of Computer and System Sciences Jawaharlal Nehru University New Delhi India

ISBN: (纸本)9783642278716

Sponsored Search Auctions (SSA) are major contributors to the search engine's revenue because of their highly targeted customers and all time available on-line arenas. The Involvement of search users induces a fairly complex dynamics in SSA. It encompasses a gamut of multi-disciplinary research problems starting from modeling users' clicking behavior to mechanism design. In the proposed work we focus on the users' response towards advertisements based on the time of query, keywords used in query and position of advertisements. This paper is an effort to estimate and quantify search engine's pay off using inductive learning which in turn implicitly models users' clicking behavior and as a byproduct it can help search engine to induce optimality in the auction without sacrificing much of the efficiency of the ranking. Experimental results are presented to demonstrate effectiveness of the proposed scheme. © 2012 Springer-Verlag.

关键词： Search engines

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FUndAMENTAL STUDY ON BRAIN SIGNAL FOR BCI-FES system DEVELOPMENT

FUNDAMENTAL STUDY ON BRAIN SIGNAL FOR BCI-FES SYSTEM DEVELOP...

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2nd IEEE-EMBS international conference on Biomedical Engineering and Sciences (IECBES)

作者： Rahman, K. A. A. Ibrahim, B. S. K. K. Leman, A. M. Jamil, M. M. A. Univ Tun Hussein Onn Malaysia Dept Mechatron & Robot Engn Batu Pahat 86400 Johor Malaysia Univ Tun Hussein Onn Malaysia Dept Elect Engn Batu Pahat 86400 Johor Malaysia Univ Tun Hussein Onn Malaysia Fac Elect & Elect Engn Modeling & Simulat Res Lab Batu Pahat 86400 Johor Malaysia Univ Tun Hussein Onn Malaysia Fac Technol Engn Dept Plan & Automot Batu Pahat 86400 Johor Malaysia

ISBN: (纸本)9781467316668;9781467316644

Electroencephalographic measurements are commonly used in medical and research areas. This article presents an introduction into Electroencephalography (EEG) measurement and the simple experiment of EEG. Its purpose is to develop orientation in EEG field and with building basic knowledge for performing EEG recordings. The normal person used as subject was used in this experiment. It is conducted in three condition;relax, hand grasp and lastly grasp and release. At the end of the experiment, there are some changes of the brain signal due to the activity that subject has been done. It shows that the brain will generate the different signal relate to the activity or the way of thinking of the subject. This study will be used as a fundamental concept for Brain computer Interface (BCI)- Functional Electrical Stimulation (FES) system development.

关键词： biomechanics biomedical measurement brain-computer interfaces electroencephalography neuromuscular stimulation

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Multipurpose detecting system for automotive switch function based on virtual instrument (LabVIEW) and embedded technology (ARM)

Multipurpose detecting system for automotive switch function...

引用

2nd international conference on Mechatronics and Intelligent Materials (MIM 2012)

作者： He, Hong Su, Xing Yang, Peipei Li, Jianwen Shi, Shaohua Tianjin Univ Technol Tianjin Key Lab Control Theory & Applicat Complic Tianjin 300384 Peoples R China Acad Mil Transportat PLA Automot Engn Coll Tianjin 300161 Peoples R China

ISBN: (纸本)9783037853849

Contrary to the problem that automobile switches have various kinds and large differences in the structure and performance so that traditional testing methods have been unable to meet the testing requirements of high performance switches, the paper designs a new detection system used to detect the functions of general auto switches which applies the developing environment LabVIEW based on virtual instrument technology and adopts the technology of embedded observe and control system. Using PC as the host computer, the system adopts the LabVIEW8.5 to compile a real-time monitoring system with good human-computer interface;S3C2440-ARM9 processor is used as the main controller of observe and control system in the inferior computer which collects output current signal when the circuit is conducted after switch is pressed. After the coding process of LwIP software protocol and the drive of Ethernet controller DM9000, the signal is transmitted to PC through Ethernet interface. Compared with conventional testing measures, this system greatly improves the real-time performance as well as working efficiency of detecting switch functions and reduces the corresponding human and material resources.

关键词： LabVIEW ARM LwIP observe and control system

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SAFCM: A security-aware feedback control mechanism for distributed real-time embedded systems

SAFCM: A security-aware feedback control mechanism for distr...

引用

18th IEEE international conference on Embedded and Real-Time Computing systems and applications, RTCSA 2012

作者： Ma, Yue Jiang, Wei Sang, Nan Pop, Paul School of Computer Science and Engineering University of Electronic Science and Technology of China China Informatics and Mathematical Modeling Department Technical University of Denmark DK-2800 Kongens Lyngby Denmark

ISBN: (纸本)9781467330176

Distributed Real-time Embedded (DRE) systems are facing great challenges in networked, unpredictable and especially unsecured environments. In such systems, there is a strong need to enforce security on distributed computing nodes in order to guard against potential threats, while satisfying the real-time requirements. This paper proposes a Security-Aware Feedback Control Mechanism (SAFCM) which has the ability to dynamically change the security level to guarantee soft real-time requirements and make the security protection as strong as possible. In order to widely support distributed real-time systems, a multi-input multi-output feedback loop is designed and a model predictive controller is deployed based on an equation model that describes the dynamic behavior of the DRE systems. This control loop uses security level scaling to globally control the CPU utilization and security performance for the whole system. We propose a "security level" metric based on an evolution of cryptography algorithms used in embedded systems. Experimental results demonstrate that SAFCM not only has the excellent adaptivity compared to open-loop mechanism, but also has a better overall performance than PID control mechanism. © 2012 IEEE.

关键词： Feedback control

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A virtual organization model based on semantic web services and its application in supply chain for agricultural product 1

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2nd international conference of Electrical and Electronics Engineering, ICEEE 2011

作者： Chen, Ruoyu Liao, Lejian Fang, Zhi Beijing Laboratory of Intelligent Information Technology School of Computer Science Beijing Institute of Technology Beijing China

ISBN: (数字)9783642260070

ISBN: (纸本)9783642260063

Cross-Organizational interoperability and coordination are core issues to Virtual Organization (VO) researches. We propose a model of VOs in which VO related concepts are modeled in an extension of the OWL-S service ontology and SWOCRL (Semantic Web Object Constraint Rule Language) rules. Within this framework, VO abilities can be seen as services provided;coordination between VOs can be seen as service invocation. SWOCRL rules are used as mediators between service descriptions and requests. A prototype system of our framework is proposed combining Constraint Handling Rules (CHR) and Prolog. © 2012 Springer-Verlag.

关键词： Semantic Web

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The application of SIFT Algorithm in Blind Road Environmental Image Matching

The Application of SIFT Algorithm in Blind Road Environmenta...

引用

2nd international conference on Mechanical Engineering and Green Manufacturing (MEGM 2012)

作者： Shi Shuo Yu Ming Xue Cui-hong Zhou Ying Hebei Univ Technol Dept Comp Sci & Software Tianjin Peoples R China

ISBN: (纸本)9783037853771

Image Matching is a key technology in the intelligent navigation system for the blind, which is based on the computer video. The images of moving blind people, collected at real time, have variety of changes in light, rotation, scaling, etc. Against this feature, we propose a practical matching algorithm, which is based on the SIFT (Scale Invariant, Feature Transform). That is the image matching algorithm. We focus on the algorithm of the SIFT feature extraction and matching, and obtain the feature points of the image through feature extraction algorithm. We verify the effect of the algorithm by selecting practical images with rotation, scaling and different light. The result is that this method can get better matches for the blind road environmental image.

关键词： blind road image SIFT image matching

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Calibration system for the Cross-Correlation Algorithm Based on OpenCV

Calibration System for the Cross-Correlation Algorithm Based...

引用

2nd international conference on Multimedia and Signal Processing (CMSP 2012)

作者： Chen, Min Wang, Hongrong Fujian Univ Technol Dept Comp & Informat Sci Fuzhou Peoples R China

ISBN: (纸本)9783642352850

The application of cross-correlation algorithm should be preceded by the calibration system validating the precision and accuracy of the algorithm. Selected adjacent two images from the video stream of the moving target, and calculate the displacement of the moving target, and then the vector information can be obtained according to the time interval set in the video capture rate. Cross-correlation algorithm in order to reduce computation, the image on the equivalent land is divided into several regions, the sub-regions of the same location is calculated. The selection of the size of the sub-regions will affect the accuracy of measurement results, so the image calibration system using a variety of images to find the association between the size of the sub-regions and the intensity of the images. This will reduce the generation of error, and founded a basement for the subsequent processing. Because the selection of the sub-regions size will affect the accuracy of measurement results, the image calibration system testing images with variety intensities to find the association between the size of the sub-regions and the image intensities. This will reduce the generation of error, and lay a good foundation for the subsequent processing. The development of the image calibration system is developed under Windows, using C/C++ programming languages, and the openCV open source image library.

关键词： calibration system cross-correlation algorithm sub-region openCV

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Composite Measurement Method Based on computer Vision Technology

Composite Measurement Method Based on Computer Vision Techno...

引用

2nd international conference on Advances in Materials and Manufacturing Processes (ICAMMP 2011)

作者： Zhao, Ping Li, Yongkui Xie, Shanliang Shenyang Agr Univ Coll Engn Shenyang 110866 Peoples R China

ISBN: (纸本)9783037853269

Based on analyzing current methods of acquiring point clouds data in reversing engineering, considering the features of structure light scanning and binocular stereovision, we proposed a composite measuring method based on vision technology, which combines the advantages of the two measurement methods in together, and established the measuring system. The greatest advantage of this method is that the edge data were obtained by binocular vision technology, and the internal data were obtained by Structure light method. In binocular vision, stereo matching was realized with the combination of epipolar constraint, corner feature matching and area matching, which could improve location precision and matching speed of feature point. An application example shows the composite measuring method is feasible.

关键词： computer Vision Stereo matching Image processing Edge detection Reversing engineering

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Interactive investigation support system design with data mining extension

Interactive investigation support system design with data mi...

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2nd international conference on computer Science, Engineering and applications, ICCSEA 2012

作者： Gupta, Somsubhra Mazumder, Saikat Mondal, Sourav Department of Information Technology JIS College of Engineering Kalyani India Department of Computer Application JIS College of Engineering Kalyani India Siemens Information Systems Ltd. Kolkata India

ISBN: (纸本)9783642301568

The Government and non Government investigation organizations (e.g. CID, CBI etc) are equipped with huge framework of databases constantly being operated and analyzed by high-end professional officials for updating and retrieving facts which assists these organizations in information requirement for investigation, investigation proceedings and finally for solving the case. This Interactive Investigation Support system is designed for the purpose of supporting crime investigation conducted under the jurisdiction of local Police Station (including District level authorization) and related issues of administrative bureaucratic hierarchy. Within the scope of this support system, fields of crime investigation have been streamlined to crimes based on vehicle theft. There is an option for providing support to search among old criminal(s) who has already committed similar crime on the same area using data mining technique. It will not detect the criminal(s). It only gives an additional support for decision making. The objective of the system is to encompass these aforesaid dynamic features operating within a large framework of databases. It interacts with a usability tested Graphical User Interface, provides user-friendly searching method - which computationally less complex, interactive and with least bug. © 2012 Springer-Verlag GmbH.

关键词： Data mining

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A Review of the Present Status of Hydraulic Accumulator

A Review of the Present Status of Hydraulic Accumulator

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The 2nd international conference on computer-Aided Design, Manufacturing, modeling and Simulation(CDMMS 2012)

作者： Ma Xian-ting Huaian College of Information Technology

A review is performed to introduce the characteristics of hydraulic accumulator comprehensively and describe the actual functions systematically,analyzes the key points of selections,applications and maintenance of ac... 详细信息

ISBN: (纸本)9783037855409

关键词： Accumulator,application,Review

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