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Displaying 1-50 out of 98 total
Understanding and Improving Ratio Incentives in Private Communities
Found in: Distributed Computing Systems, International Conference on
By Zhengye Liu, Prithula Dhungel, Di Wu, Chao Zhang, Keith W. Ross
Issue Date:June 2010
pp. 610-621
Incentive mechanisms play a critical role in P2P systems. Private BitTorrent sites use a novel incentive paradigm, where the sites record upload and download amounts of users and require each user to maintain its upload-to-download ratio above a specified ...
Mobile Agents in E-Learning Resource Management
Found in: Frontiers in Education, Annual
By He Yan, Wenqing Cheng, Shu Wang, Di Wu
Issue Date:October 2006
pp. 17-22
This paper is devoted to mobile agents and their use for e-learning resource management. We provide a brief overview and an elaborate case study. The overview introduces the concept of mobile agent, enumerates the claimed benefits, and discusses the state ...
Location Optimization of Urban Passenger Transportation Terminal
Found in: Optoelectronics and Image Processing, International Conference on
By Xuemei Zhou, Di Di, Xiaoguang Yang, Di Wu
Issue Date:November 2010
pp. 668-671
There are a lot of relevant researches about location of urban passenger transportation terminal at home and abroad, but the traditional location models are often rarely considered the influence which urban transportation terminal location to bus-sharing r...
Detection of Shape Anomalies: A Probabilistic Approach Using Hidden Markov Models
Found in: Data Engineering, International Conference on
By Zheng Liu, Jeffrey Xu Yu, Lei Chen, Di Wu
Issue Date:April 2008
pp. 1325-1327
We study the problem of detecting the shape anomalies in this paper. Our shape anomaly detection algorithm is performed on the one-dimensional representation (time series) of shapes, whose similarity is modeled by a generalized segmental hidden Markov mode...
A DFA with Extended Character-Set for Fast Deep Packet Inspection
Found in: Parallel Processing, International Conference on
By Cong Liu,Ai Chen,Di Wu,Jie Wu
Issue Date:September 2011
pp. 1-10
Deep packet inspection (DPI), based on regular expressions, is expressive, compact, and efficient in specifying attack signatures. We focus on their implementations based on general-purpose processors that are cost-effective and flexible to update. In this...
Accelerating CABAC encoding for multi-standard media with configurability
Found in: Parallel and Distributed Processing Symposium, International
By O. Flordal, Di Wu,D. Liu
Issue Date:April 2006
pp. 201
This paper presents the study of how to accelerate CABAC encoding for emerging heterogeneous multimedia applications. The latest image and video compression standards such as JPEG2000 and H.264 both have adopted context adaptive binary arithmetic coding to...
Formalization Description and Instance Research on Particle Swarm Optimization Algorithm
Found in: Intelligent Systems Design and Applications, International Conference on
By Lei Wang, Qi Kang, Hui Xiao, Qi-di Wu
Issue Date:October 2006
pp. 963-968
Formalization description of particle swarm optimization algorithm is proposed based on the collectivity mode framework of swarm intelligence in this paper. As a specific case, a modified particle swarm optimization algorithm is brought forward in formaliz...
Fast Localization Using Robust UWB Coding in Wireless Sensor Networks
Found in: Mobile Ad-hoc and Sensor Networks, International Conference on
By Di Wu, Lichun Bao, Renfa Li, Fanzi Zeng
Issue Date:December 2009
pp. 319-326
Localization has many important applications in wireless sensor networks. A variety of wireless technologies, such as acoustic, infrared, and ultra-wide band (UWB) media have been applied for localization purposes. This paper consists of two parts. The fir...
An efficient geometric build-up algorithm, for protein structure determination with, sparse exact distance data
Found in: Bioinformatics and Biomedicine Workshop, IEEE International Conference on
By R.T. Davis, C. Ernst, Di Wu
Issue Date:November 2009
pp. 173-180
The paper introduces an efficient algorithm to build up a protein structure from atomic distance data. An updated geometric build-up algorithm (UGB) has been developed recently that controls numerical errors and is efficient in protein structure determinat...
Gemma in April: A matrix-like parallel programming architecture on OpenCL
Found in: 2011 Design, Automation & Test in Europe
By Tianji Wu, Di Wu, Yu Wang, Xiaorui Zhang, Hong Luo, Ningyi Xu, Huazhong Yang
Issue Date:March 2011
pp. 1-6
Nowadays, Graphics Processing Unit (GPU), as a kind of massive parallel processor, has been widely used in general purposed computing tasks. Although there have been mature development tools, it is not a trivial task for programmers to write GPU programs. ...
Making Human Connectome Faster: GPU Acceleration of Brain Network Analysis
Found in: Parallel and Distributed Systems, International Conference on
By Di Wu, Tianji Wu, Yi Shan, Yu Wang, Yong He, Ningyi Xu, Huazhong Yang
Issue Date:December 2010
pp. 593-600
The research on complex Brain Networks plays a vital role in understanding the connectivity patterns of the human brain and disease-related alterations. Recent studies have suggested a noninvasive way to model and analyze human brain networks by using mult...
Research on Manufacturer's Product Pricing Model under Waste Self-Selection Disposal Mode
Found in: Information Science and Management Engineering, International Conference of
By Di Wu, Chunyou Wu
Issue Date:August 2010
pp. 472-475
Under the pressure of environmental regulations and public opinion, manufacturers must take on its responsibility for waste disposal, which caused the increase of its operating cost. Therefore, it is important for studying in product pricing under the wast...
Towards Efficient ID-Based Signature Schemes with Batch Verifications from Bilinear Pairings
Found in: Availability, Reliability and Security, International Conference on
By Yuh-Min Tseng, Tsu-Yang Wu, Jui-Di Wu
Issue Date:March 2009
pp. 935-940
Many group-oriented applications and multicast communications often need to verify which group members have sent/received a message. However, individual verification of signed messages would require a significant computation cost. A secure signature scheme...
A mutual authentication and key exchange scheme from bilinear pairings for low power computing devices
Found in: Computer Software and Applications Conference, Annual International
By Yuh-Min Tseng, Tsu-Yang Wu, Jui-Di Wu
Issue Date:July 2007
pp. 700-710
In a client-server network environment, a mutual authentication and key exchange scheme is an important security mechanism to provide two parties with the property that they can authenticate each other?s identity while they may construct a common session k...
A Self-Synchronized Image Hash Algorithm
Found in: Communications and Mobile Computing, International Conference on
By Di Wu, Xiamu Niu
Issue Date:April 2010
pp. 13-15
Image searching and authentication have become important issues for the digital world. Image hashing technique has been proposed to meet them. In this paper, a self-synchronized image hashing algorithm resistant to rotation is presented. In the algorithm, ...
The Concept of Betweenness in the Analysis of Power Grid Vulnerability
Found in: Engineering. Complexity in
By Ettore Bompard, Di Wu, Fei Xue
Issue Date:February 2010
pp. 52-54
Vulnerability analysis in power systems is a key issue in modern society and many efforts have contributed to the analysis. Recently, complex network metrics applied to assess the topological vulnerability of networked systems have been used in power syste...
Use of In-Situ Visible and Near-Infrared Spectroscopy for Non-invasive Discrimination of Spirulina Platensis
Found in: Computational Intelligence and Security, International Conference on
By Di Wu, Tianyun Ma, Pengcheng Nie, Zhiping Wang, Zhengjun Qiu, Yong He
Issue Date:December 2009
pp. 330-334
This paper evaluated the feasibility of using visible and near infrared (Vis-NIR) spectroscopy for the non-invasive discrimination of Spirulina platensis. The reflectance spectra of Spirulina platensis culture medium were measured. Full-spectrum obtained a...
Study on the Construction Method of Networked Service Oriented System for RP
Found in: Measuring Technology and Mechatronics Automation, International Conference on
By Di Wu, Qingxi Hu, YuanYao, Haiguang Zhang
Issue Date:April 2009
pp. 730-733
The paper presents an approach which constructs networked service system for RP (Rapid Prototyping) industries, summarizes the networked service pattern, and discusses the networked service matching and composition of RP enterprise. It analyzes the technic...
Building Interactive Three-Dimensional Virtual Electrostatic Induction Generator and Design of Discharge Experiment
Found in: 2013 Fifth International Conference on Computational and Information Sciences (ICCIS)
By Di Wu
Issue Date:June 2013
pp. 1170-1173
When constructing sophisticated 3D interactive apparatus with VRML, a method is usually adopted that is manipulating another object with a selected one. Therefore, the way of achieving the linkage movement of three-dimensional objects on website was crucia...
Depth Map Generation Algorithm for Multiview Video
Found in: 2013 Fifth International Conference on Computational and Information Sciences (ICCIS)
By Di Wu,Huyin Zhang,Xin Li,Long Qian
Issue Date:June 2013
pp. 746-749
In this paper, we propose a new approach to depth map generation for multiview video system. Our goal is to improve 3D scene representation consistency by exchanging spatial information between all depth maps in multiview video. The presented algorithm mai...
Multiview Video Coding Based on Wavelet Pyramids
Found in: 2013 Fifth International Conference on Computational and Information Sciences (ICCIS)
By Di Wu,Huyin Zhang,Xin Li,Jing Wang
Issue Date:June 2013
pp. 225-228
In this paper, we propose a scalable multiview video coding (MVC) algorithm based on Wavelet Pyramids and Set Partitioning in Hierarchical Tree (SPIHT) codec. This algorithm first uses the Mallat pyramid method to decompose the original images into subband...
FPGA Simulation Engine for Customized Construction of Neural Microcircuit
Found in: 2013 IEEE 21st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)
By Jason Cong,Hugh T. Blair,Di Wu
Issue Date:April 2013
pp. 229
In this poster we describe a platform-based approach for rapid construction of FPGA-based simulation of neural microcircuits composed from integrate-and-fire (IAF) neurons. Our approach exploits high-level synthesis to bypass the high design complexity of ...
On P2P mechanisms for VM image distribution in cloud data centers: Modeling, analysis and improvement
Found in: 2012 IEEE 4th International Conference on Cloud Computing Technology and Science (CloudCom)
By Di Wu,Yupeng Zeng,Jian He,Yi Liang,Yonggang Wen
Issue Date:December 2012
pp. 50-57
To provide elastic cloud services with QoS guarantee, it is essential for cloud data centers to provision virtual machines rapidly according to user requests. Due to bandwidth bottleneck of centralized model, P2P model is recently adopted in data centers t...
An Aggregate Parameter for Congestion Detection in VANETs
Found in: 2012 Fifth International Conference on Information and Computing Science (ICIC)
By Di Wu,Dongxia Zhang,Limin Sun
Issue Date:July 2012
pp. 95-98
Vehicular ad hoc networks (VANETs), which are a class of Mobile ad hoc networks, have recently been developed as a standard means of communication among moving vehicles. Congestion is one of the key issues which can restrict the Network performance, and it...
Network Security Admission Solution Based on IEEE802.1X
Found in: Computing, Measurement, Control and Sensor Network, International Conference on
By Hui Hu,Di Wu,Tao Tang
Issue Date:July 2012
pp. 336-339
With the rapid development and wide application of information technologies, enterprise network security is particularly important. IEEE802.1x standard is now widely used in the industry for a secure access technologies, this article on 802.1X agreed princ...
Decomposing global light transport using time of flight imaging
Found in: 2012 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Di Wu,M. O'Toole,A. Velten,A. Agrawal,R. Raskar
Issue Date:June 2012
pp. 366-373
Global light transport is composed of direct and indirect components. In this paper, we take the first steps toward analyzing light transport using high temporal resolution information via time of flight (ToF) images. The time profile at each pixel encodes...
Semi-supervised Machine Learning Algorithm in Near Infrared Spectral Calibration: A Case Study to Determine Cetane Number and Total Aromatics of Diesel Fuels
Found in: Intelligent Computation Technology and Automation, International Conference on
By Songjing Wang,Di Wu,Kangsheng Liu
Issue Date:January 2012
pp. 308-311
A new spectral calibration algorithm, Laplacian regularized least squares (LapRLS), was proposed. Commonly least squares support vector machine (LS-SVM) and partial least squares (PLS) are used for the spectral quantitative model establishment. However, LS...
A Survey on Latest Botnet Attack and Defense
Found in: IEEE TrustCom/IEEE ICESS/FCST, International Joint Conference of
By Lei Zhang,Shui Yu,Di Wu,Paul Watters
Issue Date:November 2011
pp. 53-60
A botnet is a group of compromised computers, which are remotely controlled by hackers to launch various network attacks, such as DDoS attack and information phishing. Botnet has become a popular and productive tool behind many cyber attacks. Recently, the...
Solving Hot Rolling Batch Planning Problem by Genetic Algorithm
Found in: International Conference on Information Management, Innovation Management and Industrial Engineering
By Haitao Li,Sujian Li,Di Wu
Issue Date:November 2011
pp. 504-507
To solve the hot rolling batch planning problem in production scheduling of iron and steel enterprises, a hot rolling batch planning model is formulated based on multiple travelling salesmen problem(MTSP) model. The objective is to minimize the total limit...
A heterogeneous accelerator platform for multi-subject voxel-based brain network analysis
Found in: Computer-Aided Design, International Conference on
By Yu Wang,Mo Xu,Ling Ren,Xiaorui Zhang,Di Wu,Yong He,Ningyi Xu,Huazhong Yang
Issue Date:November 2011
pp. 339-344
The research on understanding the human brain has attracted more and more attention. A promising method is to model the brain as a network based on modern imaging technologies and then to apply graph theory algorithms for analysis. In this work, we examine...
A New Automatic Matching Algorithm of Aerial Remote Sensing Images
Found in: Information Technology, Computer Engineering and Management Sciences, International Conference of
By Zhiqiang Wang,Hong Cheng,Wenbang Sun,Guang Yu,Di Wu
Issue Date:September 2011
pp. 377-380
In order to solve the traditional problems of matching algorithms such as false-matching and inefficiency, an automatic matching algorithm of aerial remote sensing images based on maximum gradient phase correlation is proposed in this paper. By combining F...
A novel fractional frequency reuse structure based on interference avoidance scheme in multi-cell LTE networks
Found in: Software Maintenance and Reengineering, European Conference on
By Lina Liu, Gang Zhu, Di Wu
Issue Date:August 2011
pp. 551-555
Inter-cell interference (ICI) mitigation is always a challenge issue in LTE system. In this paper, a novel fractional frequency reuse (FFR) architecture based on interference avoidance scheme coupled with power control is proposed to solve the problem of i...
A modified algorithm of synchronization signal detection for LTE initial cell search
Found in: Software Maintenance and Reengineering, European Conference on
By Yukai Gao, Gang Zhu, Xia Chen, Di Wu, Buri Ban
Issue Date:August 2011
pp. 1211-1215
For the Long Term Evolution (LTE) system in 3rd Generation Partnership Project (3GPP), the calculation of synchronization signal detection algorithm is very complex. According to the properties of the primary synchronization signal (PSS) and the secondary ...
The Influence of Regional Culture and Value in Sustainable Development of Chinese Urban Residential Choice
Found in: Asia-Pacific Power and Energy Engineering Conference
By Di Wu, Jefferson Mao, Terry N. Clark
Issue Date:March 2011
pp. 1-10
Unsupervised Image Change Detection Based on 2-D Fuzzy Entropy
Found in: Computational Intelligence and Security, International Conference on
By Wenbang Sun, Hexin Chen, Haiyan Tang, Di Wu
Issue Date:December 2010
pp. 248-252
Change detection in images of a given scene acquired at different times is one of the most interesting topics of image processing. A new change detection method based on 2-D fuzzy entropies is proposed in this paper to detect change area of the difference ...
A History-Case-Based Rapid Prototyping and Manufacturing System
Found in: System Science, Engineering Design and Manufacturing Informatization, International Conference on
By Kai Zhou, Yuan Yao, Qingxi Hu, Di Wu
Issue Date:November 2010
pp. 133-136
Online business is growing rapidly for small sized companies in retail industry, but the small companies’ online manufacturing services are less developed. The main reason is that the manufacturing process is very complex. And there are a lot of manufactur...
Efficiency Analysis of Multi-Functional Lane in Urban Expressway Based on Simulation
Found in: Optoelectronics and Image Processing, International Conference on
By Yu Bai, Di Wu, Xiaoguang Yang
Issue Date:November 2010
pp. 473-478
Based on the innovations which setting up multi-functional lane(m-fl) in Beijing and Tianjin city expressway, this paper gives the definition of multi-functional lane and elaborates the three main functions of it. The multi-functional lane can provide lane...
Unraveling the BitTorrent Ecosystem
Found in: IEEE Transactions on Parallel and Distributed Systems
By Chao Zhang, Prithula Dhungel, Di Wu, Keith W. Ross
Issue Date:July 2011
pp. 1164-1177
BitTorrent is the most successful open Internet application for content distribution. Despite its importance, both in terms of its footprint in the Internet and the influence it has on emerging P2P applications, the BitTorrent Ecosystem is only partially u...
Global Register Alias Table: Executing Sequential Program on Multi-Core
Found in: Computer and Information Technology, International Conference on
By Chunhao Wang, Lihan Ju, Di Wu, Lingxiang Xiang, Wei Hu, Tianzhou Chen
Issue Date:July 2010
pp. 1818-1824
Executing sequential program on multi-core is crucial for accommodating instruction level parallelism (ILP) in chip multiprocessor (CMP) architecture. One widely used method of steering instructions across cores is based on dependency. However, this method...
Truncated Epipolar Line Matching Method Based on Image Rectification
Found in: Information and Computing Science, International Conference on
By Di Wu, Naiguang Lu, Peng Sun
Issue Date:June 2010
pp. 198-201
We present an efficient method based on image rectification for achieving the feature correspondence between images. The method is comprehensible through a geometric analysis of two rectified views. An important constraint-Truncation Point-is found and lar...
Urban Traffic Control Tentative Exploration in Vehicle-Infrastructure Integration Environment
Found in: Intelligent Computation Technology and Automation, International Conference on
By Jiao Yao, Xiaoguang Yang, Di Wu, Baiying Shi
Issue Date:May 2010
pp. 1110-1113
Vehicle Infrastructure Integration (VII), combining traffic participant, vehicle, and relative environment elements as an organism through vehicle-to-vehicle, vehicle-to-infrastructure wireless communication technology, can deeply improve traffic safety an...
Efficient lists intersection by CPU-GPU cooperative computing
Found in: 2010 IEEE International Symposium on Parallel & Distributed Processing, Workshops and Phd Forum (IPDPSW 2010)
By Di Wu, Fan Zhang, Naiyong Ao, Gang Wang, Xiaoguang Liu, Jing Liu
Issue Date:April 2010
pp. 1-8
Lists intersection is an important operation in modern web search engines. Many prior studies have focused on the single-core or multi-core CPU platform or many-core GPU. In this paper, we propose a CPU-GPU cooperative model that can integrate the computin...
A Summarization of Multimedia Resource Digital Rights Expression Language
Found in: Networks Security, Wireless Communications and Trusted Computing, International Conference on
By Di Wu, Yan Bao
Issue Date:April 2010
pp. 374-377
Digital rights expression language (DREL) is a key technology of digital rights management (DRM) which can be used to effectively protect the digital multimedia resources in the multimedia resource service environment. In the technology framework of DRM, D...
Research on RSS based Indoor Location Method
Found in: Knowledge Engineering and Software Engineering, Pacific-Asia Conference on
By Di Wu, Yubin Xu, Lin Ma
Issue Date:December 2009
pp. 205-208
With the development of positioning in indoor wireless environments, RSS-based indoor positioning algorithm has been widely applied. Compared with other indoor positioning algorithms, the greatest advantage of RSS-based is that it can be configured easily ...
On the Semantic Orientation and Computer Identification of Adverb bié
Found in: Asian Language Processing, International Conference on
By Lin He, Di Wu
Issue Date:December 2009
pp. 182-189
The recognition of the semantic orientation of the adverb on the computer is a new temptation to discuss sentence processing starting from semantic. In this paper, in order to achieve computer automatic identification of semantic orientation, we focus on t...
A Batched GPU Algorithm for Set Intersection
Found in: Parallel Architectures, Algorithms, and Networks, International Symposium on
By Di Wu, Fan Zhang, Naiyong Ao, Fang Wang, Xiaoguang Liu, Gang Wang
Issue Date:December 2009
pp. 752-756
Intersection of inverted lists is a frequently used operation in search engine systems. Efficient CPU and GPU intersection algorithms for large problem size are well studied. We propose an efficient GPU algorithm for high performance intersection of invert...
A Robust Contourlet Based Image Hash Algorithm
Found in: Intelligent Information Hiding and Multimedia Signal Processing, International Conference on
By Yanan Wang, Di Wu, Hui Zhang, Xiamu Niu
Issue Date:September 2009
pp. 1010-1013
Image searching and authentication have become strong requirements in the digital world. Image perceptual hashing has been proposed to meet them. In this paper, a rotation resilient image hashing algorithm is presented. In the algorithm, the position infor...
Comparison of Binary Classification Based on Signed Distance Functions with Support Vector Machines
Found in: Bioinformatics, 2009 Ohio Collaborative Conference
By Erik M. Boczko, Minhui Xie, Di Wu, Todd Young
Issue Date:June 2009
pp. 139-143
We compare methods based on the Signed Distance Function (SDF) a new tool for binary classification with standard Support Vector Machine (SVM) methods. We demonstrate on several sets of micro-array data that the performance of the SDF based methods can mat...
An Improved Outlier Detection Method in High-dimension Based on Weighted Hypergraph
Found in: Electronic Commerce and Security, International Symposium
By YinZhao Li, Di Wu, JiaDong Ren, ChangZhen Hu
Issue Date:May 2009
pp. 159-163
Outlier detection in high-dimensional space is a hot topic in data mining, the main goal is to find out a small quantity of data objects with abnormal behavior in data set. In this paper, the concepts of the feature vector and the attribute similarity are ...
Joint estimation of I/Q imbalance, CFO and channel response for OFDM systems
Found in: Acoustics, Speech, and Signal Processing, IEEE International Conference on
By Yuan-Hwui Chung, Kai-Di Wu, See-May Phoong
Issue Date:April 2009
pp. 2573-2576
In this paper, we study the joint estimation of I/Q imbalance, CFO and channel response for OFDM systems. Using two repeated OFDM blocks for training, we propose a new method to solve the joint estimation problem. The implementation complexity is low. Simu...
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