Search results for: Zonghui Wang

Items from 1 to 20 out of 22 results

article

Focus: Function clone identification on cross‐platform

Lirong Fu, Shouling Ji, Changchang Liu, Peiyu Liu, more

International Journal of Intelligent Systems > 37 > 8 > 5082 - 5112

Automatic identification of function clones on cross‐platform aims at determining whether two functions are identical or not without access to the source code, which is a fundamental challenge in vulnerability search, code plagiarism detection, and malware classification. With the rapid development of deep neural network in program analysis, the state‐of‐the‐art neural network‐based function clone...

article

A Duplication-Aware SSD-Based Cache Architecture for Primary Storage in Virtualization Environment

Xian Chen, Wenzhi Chen, Zhongyong Lu, Peng Long, more

IEEE Systems Journal > 2017 > 11 > 4 > 2578 - 2589

With the advantages of low latency, high performance, and low power consumption, solid state drives (SSDs) have been widely deployed as the cache layer between memory and back-end low-speed storage devices to narrow the performance gap between CPU and storage system. However, in virtualization environment, the high integration of virtual machines can introduce a lot of duplicate data blocks in the...

article

Performance-Monitoring-Based Traffic-Aware Virtual Machine Deployment on NUMA Systems

Yuxia Cheng, Wenzhi Chen, Zonghui Wang, Xinjie Yu

IEEE Systems Journal > 2017 > 11 > 2 > 973 - 982

Virtualization technology enables multiple virtual machines (VMs) to share a single physical server. Commercial servers increasingly use the nonuniform memory access (NUMA) architecture due to its scalable memory performance. However, multiple VMs running on a NUMA physical server will cause performance overheads such as remote memory access latency and shared microarchitectural resource contention,...

article

Precise contention-aware performance prediction on virtualized multicore system

Yuxia Cheng, Wenzhi Chen, Zonghui Wang, Yang Xiang

Journal of Systems Architecture > 2017 > 72 > C > 42-50

Multicore systems are widely deployed in both the embedded and the high end computing infrastructures. However, traditional virtualization systems can not effectively isolate shared micro architectural resources among virtual machines (VMs) running on multicore systems. CPU and memory intensive VMs contending for these resources will lead to serious performance interference, which makes virtualization...

chapter

vMobiDesk: Desktop Virtualization for Mobile Operating System

Kui Su, Pengfei Jiang, Zonghui Wang, Wenzhi Chen

2016 IEEE 18th International Conference on High Performance Computing and Communications; IEEE 14th International Conference on Smart City; IEEE 2nd International Conference on Data Science and Systems (HPCC/SmartCity/DSS) > 945 - 950

With the rapid adoption of smartphones and tablets, virtual desktop infrastructure (VDI) for mobile devices emerges as one of the key concept in mobile cloud computing (MCC). However, existing VDI products are originally designed for personal computer operating systems (e.g. Windows, Mac OS, Ubuntu, etc.). The user experience is greatly degraded while viewing and operating a PC desktop from a smartphone...

chapter

A Scalable HLA-Based Distributed Simulation Framework for VR Application

Zonghui Wang, Jiaoying Shi, Xiaohong Jiang

Lecture Notes in Computer Science > Advances in Artificial Reality and Tele-Existence > Distributed and Collaborative VR System > 361-371

HLA-based Distributed Simulation technology is employed widely in Virtual Reality (VR) applications, such as military simulation, internet games, roaming etc. To support larger number of participants, scalability is becoming a key issue of VR applications. In this paper, we explore the characteristics of distributed simulation, and analyze the scalability of servers and participants, and classify...

article

Efficient group-by reverse skyline computation

Zonghui Wang, Yunjun Gao, Qing Liu, Xiaoye Miao, more

World Wide Web > 2016 > 19 > 6 > 1023-1049

The reverse skyline query is very useful in many decision making applications. Given a multi-dimensional dataset P and a query point q, the reverse skyline query returns all the points in P whose dynamic skyline contains q. Although the reverse skyline retrieval has been well-studied in the literature, there is, to the best of our knowledge, no prior work on one of the most intuitive and practical...

chapter

RPFF: A Remote Page-Fault Filter for Post-copy Live Migration

Kui Su, Wenzhi Chen, Guoxi Li, Zonghui Wang

2015 IEEE International Conference on Smart City/SocialCom/SustainCom (SmartCity) > 938 - 943

2015 IEEE International Conference on Smart City/SocialCom/SustainCom (SmartCity)

Live migration of virtual machine has attracted significant attention in recent years. It facilitates system online maintenance, load balancing, fault tolerance and power management. Existing pre-copy live migration approach has to iteratively copy redundant memory pages, which causes high network overhead and slow migration. Another post-copy live migration approach can provide quick migration with...

article

AMC: an adaptive multi‐level cache algorithm in hybrid storage systems

Yuxia Cheng, Wenzhi Chen, Zonghui Wang, Xinjie Yu, more

Concurrency and Computation: Practice and Experience > 27 > 16 > 4230 - 4246

Hybrid storage systems that consist of flash‐based solid state drives (SSDs) and traditional disks are now widely used. In hybrid storage systems, there exists a two‐level cache hierarchy that regard dynamic random access memory (DRAM) as the first level cache and SSD as the second level cache for disk storage. However, this two‐level cache hierarchy typically uses independent cache replacement policies...

chapter

Affinity and Conflict-Aware Placement of Virtual Machines in Heterogeneous Data Centers

Kui Su, Lei Xu, Cong Chen, Wenzhi Chen, more

2015 IEEE Twelfth International Symposium on Autonomous Decentralized Systems > 289 - 294

2015 IEEE Twelfth International Symposium on Autonomous Decentralized System (ISADS)

Virtual machine placement (VMP) problem has been a key issue in IaaS/PaaS cloud infrastructures. Many recent works on VMP prove that inter-VM relations such as memory share, traffic dependency and resource competition should be seriously considered to save energy, increase the performance of infrastructure, reduce service level agreement violation rates and provide better administrative capabilities...

chapter

Condroid: A Container-Based Virtualization Solution Adapted for Android Devices

Lei Xu, Guoxi Li, Chuan Li, Weijie Sun, more

2015 3rd IEEE International Conference on Mobile Cloud Computing, Services, and Engineering > 81 - 88

2015 3rd IEEE International Conference on Mobile Cloud Computing, Services, and Engineering (MobileCloud)

Mobile virtualization, emerging fairly recently, is considered to be a valuable way to mitigate security risks on Android devices. In this paper, we propose a lightweight Android virtualization solution based on container technology, named Condroid. Condroid includes resource isolation based on namespace feature and resource control based on cgroups feature. By leveraging them, Condroid can host several...

chapter

DASH: A duplication-aware flash cache architecture in virtualization environment

Xian Chen, Wenzhi Chen, Shuiqiao Yang, Zhongyong Lu, more

2014 20th IEEE International Conference on Parallel and Distributed Systems (ICPADS) > 842 - 847

2014 20th IEEE International Conference on Parallel and Distributed Systems (ICPADS)

With the rapid development of multi-core and multi-threading technologies, the performance gap between CPU and storage system is widening year by year, causing the storage system to be the bottleneck of the whole system performance. To alleviate this situation, flash memory has been used as the caching device of HDDs. On the other hand, cloud computing is becoming more and more popular and mature...

article

A personality model for animating heterogeneous traffic behaviors

Xuequan Lu, Zonghui Wang, Mingliang Xu, Wenzhi Chen, more

Computer Animation and Virtual Worlds > 25 > 3-4 > 361 - 371

How to automatically generate realistic and heterogeneous traffic behaviors has been a much needed yet challenging problem for numerous traffic simulation and urban planning applications. In this paper, we propose a novel approach to model heterogeneous traffic behaviors by adapting a well‐established personality trait model (i.e., Eysenck's PEN (psychoticism, extraversion and neuroticism) model)...

article

AA‐FVDM: An accident‐avoidance full velocity difference model for animating realistic street‐level traffic in rural scenes

Xuequan Lu, Wenzhi Chen, Mingliang Xu, Zonghui Wang, more

Computer Animation and Virtual Worlds > 25 > 1 > 83 - 97

Most of existing traffic simulation efforts focus on urban regions with a coarse two‐dimensional representation; relatively few studies have been conducted to simulate realistic three‐dimensional traffic flows on a large, complex road web in rural scenes. In this paper, we present a novel agent‐based approach called accident‐avoidance full velocity difference model (abbreviated as AA‐FVDM) to simulate...

chapter

SEMMA: Secure Efficient Memory Management Approach in Virtual Environment

Xian Chen, Wenzhi Chen, Peng Long, Zhongyong Lu, more

2013 International Conference on Advanced Cloud and Big Data > 131 - 138

2013 International Conference on Advanced Cloud and Big Data (CBD)

For the ability to explore the memory's fullest potential, memory de-duplication has been widely experimented with in current main stream virtualization platforms. A lot of work has been done to improve the efficiency of memory de-duplication, while too little attention was paid to the introduced security issues which have been proved by prior work. To deal with this security risk and efficiently...

article

iBOAT: Isolation-Based Online Anomalous Trajectory Detection

Chao Chen, Daqing Zhang, Pablo Samuel Castro, Nan Li, more

IEEE Transactions on Intelligent Transportation Systems > 2013 > 14 > 2 > 806 - 818

Trajectories obtained from Global Position System (GPS)-enabled taxis grant us an opportunity not only to extract meaningful statistics, dynamics, and behaviors about certain urban road users but also to monitor adverse and/or malicious events. In this paper, we focus on the problem of detecting anomalous routes by comparing the latter against time-dependent historically “normal” routes. We propose...

article

Real Time Anomalous Trajectory Detection and Analysis

Lin Sun, Daqing Zhang, Chao Chen, Pablo Samuel Castro, more

Mobile Networks and Applications > 2013 > 18 > 3 > 341-356

GPS-equipped taxis can be considered as pervasive sensors and the large-scale digital traces produced allow us to reveal many hidden facts about the city dynamics and human behaviors. In this paper we present a novel GPS-based taxi system which can detect ongoing anomalous passenger delivery behaviors leveraging our proposed iBOAT method. To achieve real time monitoring, we reduce the response time...

chapter

Smart-DRS: A Strategy of Dynamic Resource Scheduling in Cloud Data Center

Lei Xu, Wenzhi Chen, Zonghui Wang, Shuangquan Yang

2012 IEEE International Conference on Cluster Computing Workshops > 120 - 127

2012 IEEE International Conference on Cluster Computing Workshops and Posters (CLUSTER WORKSHOPS)

The biggest advantage of employing virtualization is the ability to flexibly remap physical resources to virtual servers in order to handle the resource redistribution. So virtual machine is the fundamental unit in cloud data center. However, the load of virtual machine constantly changes owing to the needs of applications. In order to improve the resource utilization and reduce power energy, data...

article

Prediction of urban human mobility using large-scale taxi traces and its applications

Xiaolong Li, Gang Pan, Zhaohui Wu, Guande Qi, more

Frontiers of Computer Science > 2012 > 6 > 1 > 111-121

This paper investigates human mobility patterns in an urban taxi transportation system. This work focuses on predicting humanmobility fromdiscovering patterns of in the number of passenger pick-ups quantity (PUQ) from urban hotspots. This paper proposes an improved ARIMA based prediction method to forecast the spatial-temporal variation of passengers in a hotspot. Evaluation with a large-scale realworld...

chapter

Measuring social functions of city regions from large-scale taxi behaviors

Guande Qi, Xiaolong Li, Shijian Li, Gang Pan, more

2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops) > 384 - 388

2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops 2011). PerCom-Workshops 2011: 2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops 2011)

City-scale human mobility analysis is an important problem in pervasive computing. In this paper, with qualitative and quantitative analysis, we establish and confirm the relationship between the get-on/off characteristics of taxi passengers and the social function of city regions. We find that get-on/off amount in a region can depict the social activity dynamics in that area, i.e. the temporal variation...

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Keywords

VIRTUALIZATION (5)
ACCURACY (2)
ANOMALOUS TRAJECTORY DETECTION (2)
BANDWIDTH (2)
CITIES AND TOWNS (2)
CONFERENCES (2)
DATA DEDUPLICATION (2)
GLOBAL POSITIONING SYSTEM (2)
GPS TRACES (2)
INDEXES (2)
LINUX (2)
MEMORY MANAGEMENT (2)
PARALLEL RENDERING (2)
RENDERING (COMPUTER GRAPHICS) (2)
REPLACEMENT STRATEGY (2)
SCHEDULING (2)
SECURITY (2)
SERVERS (2)
VIRTUAL MACHINE (2)
VIRTUAL MACHINING (2)
ACTION LIST (1)
ADAPTIVE ALGORITHM (1)
AFFINITY (1)
ALGORITHM (1)
ANDROID (1)
ANOMALOUS TRAJECTORY ANALYSIS (1)
ASH (1)
ATTENTION MECHANISM (1)
AUTO-REGRESSIVE INTEGRATED MOVING AVERAGE (ARIMA) (1)
BALLOONING TECHNIQUE (1)
BEHAVIORAL ANIMATION (1)
BINARY SIMILARITY (1)
CACHE ARCHITECTURE (1)
CITY DYNAMICS (1)
CITY REGIONS (1)
CITY-SCALE HUMAN MOBILITY ANALYSIS (1)
CLASSIFICATION METHOD (1)
CLOUD COMPUTING (1)
CLOUD DATA CENTERS (1)
COMPUTATIONAL MODELING (1)
COMPUTER ARCHITECTURE (1)
CONFLICT (1)
CONTAINER (1)
CONTEXT (1)
CORE INFRASTRUCTURE PLATFORM (1)
DATA ANALYSIS (1)
DATA SCIENCE (1)
DATA VISUALISATION (1)
DIGITAL SIMULATION (1)
DISTRIBUTED SIMULATION (1)
DYNAMIC RESOURCE ALLOCATION (1)
DYNAMIC RESOURCE SCHEDULING (1)
DYNAMIC SCHEDULING (1)
EXTENDED GRID PORTAL (1)
FEATURE EXTRACTION (1)
FLASH CACHE ARCHITECTURE (1)
GLOBAL POSITIONING SYSTEM (GPS) TRACES (1)
GPS EQUIPPED TAXIS (1)
GRAPH NEURAL NETWORK (1)
GRID COMPUTING (1)
GRID TECHNOLOGY (1)
GRID-BASED DISTRIBUTED SIMULATION (1)
GROUP-BY REVERSE SKYLINE (1)
HARDWARE (1)
HETEROGENEITY (1)
HETEROGENEOUS TRAFFIC (1)
HETEROGENOUS SCENE GRAPH TREE (1)
HIGH LEVEL ARCHITECTURE (1)
HIGH PERFORMANCE COMPUTING (1)
HIGH-RESOLUTION MULTISCREEN TILED DISPLAY SERVICE (1)
HLA-BASED SIMULATION (1)
HOTSPOTS (1)
HUMAN MOBILITY PREDICTION (1)
HUMANS (1)
HYBRID STORAGE (1)
INSTRUCTION SETS (1)
INTERACTIVE GRID VISUALIZATION SYSTEM (1)
ISOLATION (1)
KERNEL (1)
KSM (1)
LARGE-SCALE DISTRIBUTED SIMULATION SERVICE (1)
LARGE-SCALE RESOURCES SHARING (1)
LARGE-SCALE TAXI BEHAVIORS (1)
LIVE MIGRATION (1)
LOAD BALANCING (1)
LOAD CONSOLIDATION (1)
MATHEMATICAL MODEL (1)
MEMORY DE-DUPLICATION (1)
MEMORY TRAFFIC (1)
MERGING (1)
MICROARCHITECTURE (1)
MICROSCOPIC MODEL (1)
MOBILE COMMUNICATION (1)
MOBILE OPERATING SYSTEM (1)
MONITORING (1)
MULTICORE (1)
MULTICORE PROCESSING (1)
MULTI‐LEVEL CACHE (1)
NONUNIFORM MEMORY ACCESS (NUMA) (1)
ONLINE (1)
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Springer (4)
Wiley (4)
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INFONA - science communication portal

Search results for: Zonghui Wang

Focus: Function clone identification on cross‐platform

A Duplication-Aware SSD-Based Cache Architecture for Primary Storage in Virtualization Environment

Performance-Monitoring-Based Traffic-Aware Virtual Machine Deployment on NUMA Systems

Precise contention-aware performance prediction on virtualized multicore system

vMobiDesk: Desktop Virtualization for Mobile Operating System

A Scalable HLA-Based Distributed Simulation Framework for VR Application

Efficient group-by reverse skyline computation

RPFF: A Remote Page-Fault Filter for Post-copy Live Migration

AMC: an adaptive multi‐level cache algorithm in hybrid storage systems

Affinity and Conflict-Aware Placement of Virtual Machines in Heterogeneous Data Centers

Condroid: A Container-Based Virtualization Solution Adapted for Android Devices

DASH: A duplication-aware flash cache architecture in virtualization environment

A personality model for animating heterogeneous traffic behaviors

AA‐FVDM: An accident‐avoidance full velocity difference model for animating realistic street‐level traffic in rural scenes

SEMMA: Secure Efficient Memory Management Approach in Virtual Environment

iBOAT: Isolation-Based Online Anomalous Trajectory Detection

Real Time Anomalous Trajectory Detection and Analysis

Smart-DRS: A Strategy of Dynamic Resource Scheduling in Cloud Data Center

Prediction of urban human mobility using large-scale taxi traces and its applications

Measuring social functions of city regions from large-scale taxi behaviors

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