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Displaying 1-50 out of 127 total
Boosting Degraded Reads in Heterogeneous Erasure-Coded Storage Systems
Found in: IEEE Transactions on Computers
By Yunfeng Zhu,Jian Lin,Patrick Lee,Yinlong Xu
Issue Date:February 2015
pp. 1
Distributed storage systems provide large-scale data storage services, yet they are confronted with frequent node failures. To ensure data availability, a storage system often introduces data redundancy via replication or erasure coding. As erasure coding ...
 
On the Speedup of Recovery in Large-Scale Erasure-Coded Storage Systems
Found in: IEEE Transactions on Parallel and Distributed Systems
By Yunfeng Zhu,Patrick P. C. Lee,Yinlong Xu,Yuchong Hu,Liping Xiang
Issue Date:July 2014
pp. 1830-1840
Modern storage systems stripe redundant data across multiple nodes to provide availability guarantees against node failures. One form of data redundancy is based on XOR-based erasure codes, which use only XOR operations for encoding and decoding. In additi...
 
Efficient BOF Generation and Compression for On-Device Mobile Visual Location Recognition
Found in: IEEE MultiMedia
By Tao Guan,Yunfeng He,Liya Duan,Jianzhong Yang,Juan Gao,Junqing Yu
Issue Date:April 2014
pp. 32-41
Existing mobile visual location recognition (MVLR) applications typically rely on bag-of-features (BOF) representation, which shows superior performance in retrieval accuracy. However, although the BOF framework is promising, it is not compact enough for o...
 
Single Disk Failure Recovery for X-Code-Based Parallel Storage Systems
Found in: IEEE Transactions on Computers
By Silei Xu, Runhui Li,Patrick P. C. Lee, Yunfeng Zhu, Liping Xiang, Yinlong Xu,John C. S. Lui
Issue Date:April 2014
pp. 995-1007
In modern parallel storage systems (e.g., cloud storage and data centers), it is important to provide data availability guarantees against disk (or storage node) failures via redundancy coding schemes. One coding scheme is X-code, which is double-fault tol...
 
Easy post-hoc spatial recalibration of eye tracking data
Found in: Proceedings of the Symposium on Eye Tracking Research and Applications (ETRA '14)
By Anthony J. Hornof, Yunfeng Zhang
Issue Date:March 2014
pp. 95-98
The gaze locations reported by eye trackers often contain error resulting from a variety of sources. Such error is of increasing concern to eye tracking researchers, and several techniques have been introduced to clean up the error. These methods, however,...
     
The research for digitalization of four great classical literatures of traditional Chinese medicine knowledge for clinic use
Found in: 2013 IEEE International Conference on Bioinformatics and Biomedicine (BIBM)
By Yunfeng Dai,Yingrong Lao,Guofeng Xu,Yuanshen Zhou,Liheng Guo,Liu Qi,Xiaolan Yin,Shuang Yang,Yongzhu Liang,Meiyan Deng,Leyan Deng,Minzhou Zhang
Issue Date:December 2013
pp. 26
The Four Great Classical Literatures(FGCL) including Treatise on Febrile Disease, Synopsis Golden Chamber, The Medical Classic of the Yellow Emperor, and Febrile disease defense are the basis of Chinese knowledge but were being used less and less because o...
   
TanPro-kit: a tangible programming tool for children
Found in: Proceedings of the 12th International Conference on Interaction Design and Children (IDC '13)
By Danli Wang, Tingting Wang, Yang Zhang, Yunfeng Qi
Issue Date:June 2013
pp. 344-347
This paper describes a new tangible programming tool--- TanPro-Kit which was designed for children aged 5 to 9. It consists of programming blocks and a LED pad. The LED pad presents visual animations and audible feedback according to the arrangement of blo...
     
Utilization of Cloud Computation and Virtualization Technology in University Public Computer Laboratory
Found in: 2013 Fifth International Conference on Computational and Information Sciences (ICCIS)
By Wushi Gao,Yunfeng Dong,Aimin Li
Issue Date:June 2013
pp. 1513-1516
This article discusses the current situation of the development of university public computer laboratories in China, based on which it analyses some problems that exist in hardware life span, usage efficiency, maintenance and management in the laboratory d...
 
Enhanced Ant Colony Optimization Algorithm for Global Path Planning of Mobile Robots
Found in: 2013 Fifth International Conference on Computational and Information Sciences (ICCIS)
By Zhiping Zhou,Yunfeng Nie,Gao Min
Issue Date:June 2013
pp. 698-701
An enhanced ant colony optimization algorithm is proposed. The search deadlock is ruled out through modifying both initial environment pheromone and state transition probability. The roundabout of trajectory is improved by combining deterministic search wi...
 
Quantitative Retrieval of Chlorophyll-a Concentration of Taihu Lake Based on Satellite HJ-1Multispectral Data
Found in: 2013 Fourth International Conference on Digital Manufacturing & Automation (ICDMA)
By Qi Wang,Wei Meng,Yunfeng Ma,Xin Ke,Xiaomin Hu
Issue Date:June 2013
pp. 958-961
With combination of satellite HJ-1 multispectral CCD data and synchronous ground monitoring data on water quality, combining the visible light red band (select the one that has a high correlation with measured chlorophyll-a concentration) and near-infrared...
 
Research on Population Size Forecasting Method for Emergency Evacuation at School
Found in: 2013 Fourth International Conference on Digital Manufacturing & Automation (ICDMA)
By Wang Jingjing,Deng Yunfeng,Gao Yukun
Issue Date:June 2013
pp. 1110-1113
Emergency evacuation is an important means to reduce casualties in coping with emergencies. Before issuing evacuation orders, forecasting the population size is the basis of all the evacuation plans. In previous studies, researchers usually use resident po...
 
Teaching creativity in computer science
Found in: Proceeding of the 44th ACM technical symposium on Computer science education (SIGCSE '13)
By Andrea Salgian, Christopher Ault, Teresa M. Nakra, Yunfeng Wang
Issue Date:March 2013
pp. 123-128
In this paper, we describe how a multidisciplinary undergraduate course in Conducting Robots becomes a venue for fostering creativity and teaching strategies for creativity enhancement. We perform a number of creativity measurements and explain our results...
     
Reform and Exploration of the Computer Graphics
Found in: 2012 IEEE Asia-Pacific Services Computing Conference (APSCC)
By Yunfeng He,Yizhu Zhao
Issue Date:December 2012
pp. 403-405
Computer Graphics is an important course for graduate students in computer major. Aiming at the present teaching situation of computer graphics course, combined with an the course characteristics, some educational reform measures, such as adjusting of teac...
 
Some Key Issues of Teaching Reform about Digital Logic
Found in: 2012 IEEE Asia-Pacific Services Computing Conference (APSCC)
By Yizhu Zhao,Yunfeng He
Issue Date:December 2012
pp. 406-409
Based on an analysis of the present teaching situation of Digital Logic course in higher school, this paper points out its existing problems, discusses some key issues and then proposes the ideas such as bringing modern design methodology into course teach...
 
A cost-based heterogeneous recovery scheme for distributed storage systems with RAID-6 codes
Found in: 2012 42nd Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN)
By Yunfeng Zhu,Patrick P. C. Lee,Liping Xiang,Yinlong Xu, Lingling Gao
Issue Date:June 2012
pp. 1-12
Modern distributed storage systems provide large-scale, fault-tolerant data storage. To reduce the probability of data unavailability, it is important to recover the lost data of any failed storage node efficiently. In practice, storage nodes are of hetero...
   
A Finite Element Analysis of the Human Knee Joint: Menisci Prosthesis instead of the Menisci and Articular Cartilage
Found in: Biomedical Engineering and Biotechnology, International Conference on
By Yunfeng Niu,Fuzhong Wang
Issue Date:May 2012
pp. 5-7
The finite element models have been used to evaluate the biomechanics of healthy and pathologic knee. And the imaging data provide functional representation of anatomical structures for the models. Previous studies have established the geometry of bone fro...
 
Retrieving Soil Moisture by TVDI Based on Different Vegetation Index: A Case Study of Shanxi Province
Found in: Computer Science and Electronics Engineering, International Conference on
By Runping Shen,Peng Yu,Jing Yan,Yunfeng Wang
Issue Date:March 2012
pp. 418-422
Combined with ground weather observation data from March 2005 to October, the MODIS vegetation index products was used to analysis the sensitivity of Ratio Vegetation Index (RVI), Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation In...
 
Detection of Movements of Head and Mouth to Provide Computer Access for Disabled
Found in: Technologies and Applications of Artificial Intelligence, International Conference on
By You Song,Yunfeng Luo,Jun Lin
Issue Date:November 2011
pp. 223-226
This paper analyzes the biometric identification and tracking related technologies of human-computer interaction. Based on Adaboost face detection algorithm, we propose a position-based head motion detection algorithm, which does not depend on the specific...
 
Research on Business Integration Method of Equipment Support Training Simulation Systems
Found in: Multimedia Information Networking and Security, International Conference on
By Lian Yunfeng,Lu Yu,Chen Liyun,Ma Yi
Issue Date:November 2011
pp. 179-182
The existing equipment support systems lack the effective interface between each other, which can not carry out interoperability between systems. It adopts Petri net to model the business process of each system firstly. And then it puts forward the share i...
 
Ethernet-based Network Measure and Control Systems Embedded MCU
Found in: Computational Intelligence and Design, International Symposium on
By Yunfeng Xu,Yan Zhang,Rui Ma
Issue Date:October 2011
pp. 71-73
This article introduces a type of embedded MCU network measure and control system based on Ethernet, which adopts high speed MCU with kernel of 8052. Through controlling the special chip for Ethernet, the system realized the function of TCP/IP protocol. Si...
 
Research on Business Integration Modeling Technology of Equipment Support Training Simulation Systems
Found in: Computational and Information Sciences, International Conference on
By Yunfeng Lian,Yu Lu,Liyun Chen,Yi Ma
Issue Date:October 2011
pp. 506-509
The existing equipment support systems lack the effective interface between each other, which can not carry out interoperability between systems. This paper adopts Petri net to model the business process of each system firstly. And then it puts forward the...
 
A Chaotic Subsystem of Hyper Bernoulli Shift Rule 41
Found in: Chaos-Fractals Theories and Applications, International Workshop on
By Yunfeng Bian,Fangyue Chen,Jing Chen,Wei Chen
Issue Date:October 2011
pp. 143-146
In this paper, the dynamics of elementary cellular automaton rule 41 is investigated in the bi-infinite symbolic sequence space. Rule 41, which is one of Chua's hyper Bernoulli shift CA rule, possesses of rich and complex dynamical behaviors. By using bloc...
 
Error-Resilient Routing for Supporting Multi-dimensional Range Query in HD Tree
Found in: Distributed Simulation and Real Time Applications, IEEE/ACM International Symposium on
By Yunfeng Gu,Azzedine Boukerche
Issue Date:September 2011
pp. 44-51
The Hierarchically Distributed Tree (HD Tree) is a novel distributed data structure built over a complete tree. The purpose of proposing this new data structure is to better support multi-dimensional range query in the distributed environment. HD Tree doub...
 
The Successive Analysis Method in Monte Carlo H Filter and Numerical Experiments
Found in: Information Technology, Computer Engineering and Management Sciences, International Conference of
By Yueqi Han,Zhuhui Wu,Yunfeng Wang,Xiaoping Cheng,Jin Qian
Issue Date:September 2011
pp. 63-67
The data assimilation method named
 
Scheduling Multi-paradigm and Multi-grain Parallel Components on Heterogeneous Platforms
Found in: ChinaGrid, Annual Conference
By Yunfeng Peng,Chongchong Zhao,Shucai Yao,Shigang Li,Yi Chen
Issue Date:August 2011
pp. 15-21
In this paper, we present a multi-paradigm and multi-grain parallel component model. It is an extension to the Common Component Architecture (CCA). Components have two kinds of paradigms, running paradigms and programming paradigms. Running paradigms can b...
 
The Chinese Alphabetic Passwords in the Fingers
Found in: International Conference on Future Computer Science and Education
By Yunfeng Zhu,Huanchang Qin,Caijuan Pan
Issue Date:August 2011
pp. 495-498
Now Robots have only the computer technology and can only achieve vague control and analog control due to the lack of design concept on the Robot rational conduct procedures-the Intelligent Science, this restricts the development of Robot. The Intelligent ...
 
Consonant Passwords in the Fingers (1)
Found in: International Conference on Future Computer Science and Education
By Yunfeng Zhu,Huanchang Qin,Caijuan Pan
Issue Date:August 2011
pp. 540-543
Language has interactive and random characteristics, someone had said that the language could not be located. We intend to solve the problem: the location of the Chinese Alphabetic Passwords in the Fingers. The Chinese Alphabet consists of 33 letters and 4...
 
Consonant Passwords in the Fingers (2)
Found in: International Conference on Future Computer Science and Education
By Yunfeng Zhu,Huanchang Qin,Weixing Wei
Issue Date:August 2011
pp. 544-548
The first Robot was born in America in 1962, from then on people were hoping to manufacture an Intelligent Robots. People endowed the Robots with the Artificial Intelligence before the Intelligent Science come into the world, the Robots can only achieve va...
 
Cephalometric Landmark Tracing Using Deformable Templates
Found in: Healthcare Informatics, Imaging and Systems Biology, IEEE International Conference on
By Yuxin Chen,Brian Potetz,Bo Luo,Xue-wen Chen,Yunfeng Lin
Issue Date:July 2011
pp. 112-119
Automatic detection and identification of landmarks in cephalometry is of great significance to orthognathic surgery and clinic applications. Motivated by the increasing demands of computerized cephalometric analysis, we present a tree-shaped deformable te...
 
Hierarchically distributed tree
Found in: Computers and Communications, IEEE Symposium on
By A. Boukerche, Yunfeng Gu
Issue Date:July 2011
pp. 91-96
The Hierarchically Distributed Tree (HD Tree) is a novel distributed data structure. The purpose of proposing this new data structure is for better maintaining data localities with exponentially expanding and extending rate, and at the same time adapting t...
 
Local Shape Control of a Bivariate Rational Interpolating Surface with Mixing Conditions
Found in: International Symposium on Voronoi Diagrams in Science and Engineering
By Yunfeng Zhang, Fangxun Bao, Caiming Zhang, Duan Qi
Issue Date:June 2011
pp. 200-205
A bivariate rational interpolation method with parameters was created which was based on function values and partial derivatives, it is called the bivariate rational interpolation with mixing conditions. This paper will deal with the bounded property and t...
 
Dynamic Cascades with Bidirectional Bootstrapping for Action Unit Detection in Spontaneous Facial Behavior
Found in: IEEE Transactions on Affective Computing
By Yunfeng Zhu,F. De la Torre,J. F. Cohn, Yu-Jin Zhang
Issue Date:April 2011
pp. 79-91
Automatic facial action unit detection from video is a long-standing problem in facial expression analysis. Research has focused on registration, choice of features, and classifiers. A relatively neglected problem is the choice of training images. Nearly a...
 
Temperature Distribution Analysis of Single-Phase GIS Bus
Found in: Asia-Pacific Power and Energy Engineering Conference
By Xiaowen Wu, Hongtao Li, Yunfeng Peng, Zhiyang Xie, Xiangchao Jin
Issue Date:March 2011
pp. 1-4
NA
 
Planning for Integrated Treatment Park of Municipal Solid Waste: A Case Study in Hangzhou
Found in: Asia-Pacific Power and Energy Engineering Conference
By Jun Tai, Yunfeng Wan, Shijia Yang, Guang Li
Issue Date:March 2011
pp. 1-4
NA
 
Calculation of Storage Capacity of Geothermal Resources by Element Weight Method: A Case Study of Lantian Bahe Formation in Xi'an Depression
Found in: Computer Distributed Control and Intelligent Environmental Monitoring, International Conference on
By Li Yunfeng, Zhou Ya'nan, Yu Xiangqian, Li Bo
Issue Date:February 2011
pp. 2424-2427
This study proposed element weight method to improve the calculation accuracy of storage capacity of geothermal reservoir. This method fully exploits all geothermal wells in the calculation region, and the calculation region of every three neighboring geot...
 
On the Connections between Sanchi Root Rot and Edaphon Dynamics in No-Tillage Sanchi-Planted Soil
Found in: Computer Distributed Control and Intelligent Environmental Monitoring, International Conference on
By Huilin Guan, Yunfeng Zhang, Yujun Chen, Jianzhong Yang, Shizhong Sun
Issue Date:February 2011
pp. 1598-1602
Sanchi is a rare and unique Chinese medical material with extremely high medical value. However, it is often vulnerable to root rot during factitious reproduction. A research, taking Sanchi no-tillage soil and root rot plants as study targets with the purp...
 
Mechanical Research of Weld Shrinkage for Hull Block in Shipbuilding Based on Joint Module Loads
Found in: Measuring Technology and Mechatronics Automation, International Conference on
By Chen Zhanglan, Xiong Yunfeng
Issue Date:January 2011
pp. 534-537
To analyze the welding deformation of hull block efficiently, the mechanical method is introduced to establish the relation between the original loads, including inherent strain and stress of joint modular, and initial loads of structure model. Being taken...
 
Method in Determining Level of Repair for Variety of Spares
Found in: Measuring Technology and Mechatronics Automation, International Conference on
By Li Yunfeng, Wang Ruilin, Liu Lin, Li Peng
Issue Date:January 2011
pp. 546-548
Analyzes the significant factors which have influence on spares variety, This paper introduce a new method of quantizing spares variety that is grey situation decision approach, It accounts for spares variety basis on level of repair.
 
A 62MHz~316MHz Phase-Locked Loop Based on Ring Oscillator for ADC Clock Generator in 0.18m CMOS
Found in: Measuring Technology and Mechatronics Automation, International Conference on
By Yunfeng Yan, Taotao Yan, Tingting Mo, Dongpo Chen
Issue Date:January 2011
pp. 6-8
This paper presents a design and implementation of a low noise phase-locked loop (PLL) based on ring oscillator to provide timing clocks for the analog-to-digital converter (ADC). The ring oscillator consists of four current control delay cells with curren...
 
Pose Errors Analysis of 6-PTRT Parallel Robot
Found in: Measuring Technology and Mechatronics Automation, International Conference on
By Li Yunfeng, Li Changfeng, Zou Ling
Issue Date:January 2011
pp. 873-876
Errors model of 6-PTRT parallel robot is proposed by setting up the relation of pose errors and structural parameters based on the closed-vectors differential. Errors sensitivity index are defined by using of singular value of the matrix and are given to p...
 
Multi-objective Optimization Method of Fixed-Time Signal Control of Isolated Intersections
Found in: Computational and Information Sciences, International Conference on
By Hua Hu, Yunfeng Gao, Xiaoguang Yang
Issue Date:December 2010
pp. 1281-1284
In this paper, we presented a multi-objective optimization model of fixed-time signal control of unsaturated intersections. The performance indices taken into consideration include total volume, average delay, average stop frequency, average queue length o...
 
The Research about Sensor-Less Anti-pinch System for Automotive Electric Window
Found in: Computational and Information Sciences, International Conference on
By Yunfeng Qiu, Jie Yin, Yi Wang, Qiao Liu
Issue Date:December 2010
pp. 808-811
In order to effectively reduce the hidden trouble of electric window on automobile, many cars now use the electric windows anti-pinch systems. It adds anti-pinch circuit based on the window control module. PIC18F258 micro controller samples and process the...
 
Supporting Multi-dimensional Range Query in HD Tree
Found in: Distributed Simulation and Real Time Applications, IEEE/ACM International Symposium on
By Yunfeng Gu, Azzedine Boukerche, Xun Ye, Regina B. Araujo
Issue Date:October 2010
pp. 71-78
There are two basic concerns for supporting multi-dimensional range query in P2P overlay networks. The first is to preserve data locality in the process of data space partitioning, and the second is the maintenance of data locality among data items with an...
 
Scenario-Based Early Reliability Model for Distributed Software
Found in: Frontier of Computer Science and Technology, Japan-China Joint Workshop on
By Luo Yunfeng, Ben Kerong
Issue Date:August 2010
pp. 201-207
The ability to predict the reliability of software system early can help to improve the quality of system. A scenario-based early reliability model for distributed software system is proposed in this paper. The distributed system is composed of subsystems ...
 
A Scene Complexity Adaptive Intra-frame Rate Control for Video Coding
Found in: Multimedia Communications, International Conference on
By Zhiping Jiang,Qingguang Dai,Yunfeng Ai
Issue Date:August 2010
pp. 108-111
Rate distortion of Intra-Frame (I-frame) plays a significant role in controlling video quality. Aiming at the deficiency of I-frame rate control of H.264, this paper presents a novel I-frame rate estimation method for H.264 rate control. Firstly, Rate-Comp...
 
Commercial Banks Exceptional Client Distinguish Based on Data Mining
Found in: Information Technology and Applications, International Forum on
By Yunfeng Liu, Xiaohui Wang, Dongsheng Zhai
Issue Date:July 2010
pp. 164-166
The commercial banks need identify exceptional client in their large number of customers to prevent abnormal customer’s risk. In this paper, four types of abnormal data detection method is introduced, present a new method - the k-medoids clustering algorit...
 
A Concrete Independent Component Analysis Algorithm Based on the Estimating Function
Found in: Electrical and Control Engineering, International Conference on
By Yunfeng Xue, Yujie Han, Yuja Wang
Issue Date:June 2010
pp. 4590-4593
A concrete independent component analysis algorithm is proposed in this paper. The algorithm is based on the concept of estimating functions. Newton's method is used to solve the estimating equation iteratively, To achieve the source adaptivity, the densit...
 
Adaptive Control of the Grinding Process Based on Fuzzy RBF Neural Network
Found in: Electrical and Control Engineering, International Conference on
By Yunfeng Wang
Issue Date:June 2010
pp. 343-346
A method of intelligent PID control was proved and it's based on RBF neural network and fuzzy theory, which constructs RBF neural network identifier online and identifies a controlled object online by means of adopting the receding horizon optimization met...
 
The Quantitative Evaluation on the Direct Economic Loss Induced by Tropical Cyclones
Found in: Information and Computing Science, International Conference on
By Yunfeng Chen, Ge Gao
Issue Date:June 2010
pp. 133-136
The evaluation model of the direct economic loss induced by tropical cyclones make landfall over China is discussed. With the observations of tropical cyclones and the socio-economic statistical data during the period from 2004 to 2008, three elements-- th...
 
Simulation on the Construction Process of Double-arch Tunnel by ADINA
Found in: Information and Computing Science, International Conference on
By Yunfeng Peng, Wei Tan
Issue Date:June 2010
pp. 60-63
As a new tunnel structure form, double-arch tunnel is placed on the research stage at home and abroad. Since the stability of surrounding rock and its strain-stress have close relationship with the lining structure function appearance, the reliabilities of...
 
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