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science and Technology Innovation (IAECST), international Academic Exchange conference on

作者： Musheng Chen Fei Gao Junhua Wu School of Software Engineering Jiangxi University of Science and Technology Nanchang China Nanchang Key Laboratory of Virtual Digital Engineering and Cultural Communication Nanchang China

In order to solve the problem of high difficulty and large amount of computation in feature extraction for web spam detection, a method for extracting semantic features only based on the HTML script of the current page is proposed. Firstly, the domain name is segmented by a memorization search algorithm combining depth-first search and dynamic programming. Secondly, the Latent Dirichlet Distribution is used to extract subject words of the web page. Lastly, three single-page semantic similarity features are calculated based on Word2Vec and word mover distance. Combining the single-page semantic similarity features with single-page statistical features, classification algorithms such as random forest are used to build classification models for web spam detection. the experimental results show that the AUC value of single-page content extraction based on semantic and statistical features for classification reaches 83.1%, which is about 7% higher than that of the control method.

关键词： Technological innovation Heuristic algorithms Semantics Web pages Forestry Feature extraction Classification algorithms

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A COC Oriented Parallel Computing Strategy for Irregular Applications

A COC Oriented Parallel Computing Strategy for Irregular App...

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international conference on Ubiquitous Information Technologies and Applications (ICUT)

作者： Jingjing Zhou Xiaofei Zhang College of Information & Electronic Engineering Zhejiang Gongshang University Hangzhou China School of Information Engineering University of Science and Technology Beijing Beijing China

Sparse and unstructured computations are widely involved in scientific and engineering applications. It means that data arrays could be indexed indirectly through the values of other arrays or non-affine subscripts. Data access pattern would not be known until runtime. So far all the parallel computing strategies for this kind of irregular problem are single network topology oriented, which cannot fully exploit the advantages of modern hierarchical computing architecture, like grid. We proposed a hybrid parallel computing strategy RP, shorted for "Replicated and Partially-shared", to improve the performance of irregular applications in the COC (Cluster of Clusters) environment. A detailed comparison is made between our strategy and other traditional models, along with experimental results demonstrating its effectiveness. A class of practical irregular applications employed RP strategy could obtain much shorter execution time and better scalability in heterogeneous network based computation environment.

关键词： Parallel processing programming profession Computer networks Concurrent computing Runtime Scalability Data engineering Computational modeling Educational institutions Network topology

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Velocity Planning of the Autonomous Rail Rapid Transit with Consideration of Obstacles

Velocity Planning of the Autonomous Rail Rapid Transit with ...

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conference on Vehicle Control and Intelligence (CVCI)

作者： Dongming Han Jinxiang Wang Yongjun Yan Mengyang Wu Zhongsheng Lin Yin Guodong School of Mechanical Engineering Southeast University Nanjing China

ISBN: (数字)9781728184975

ISBN: (纸本)9781728184982

A velocity planning strategy for the autonomous-rail rapid transit (art) based on the pseudospectral (PS) method is proposed in this paper. the PS method is used as a replanning algorithm provided with its real-time performance. the multi-particle model is adopted in the dynamics model of art. the energy consumption of art is chosen as the optimization goal, and the arrival time and arrival velocity are taken as constraints to ensure economic efficiency and punctuality of the art. When encountering obstacles such as pedestrians and lower-speed vehicles, the velocity planning strategy based on the PS method is applied to re-plan velocity of the art. Performance of the proposed strategy is evaluated by comparing with the strategy to track the original velocity planned offline by dynamic programming (DP) algorithm. the simulation results in Matlab/Simulink- Trucksim environment illustrate that the PS based method has better real-time performance than the DP based method. the proposed planning strategy also makes art arrive at the next station punctually, as well as leading to 36.21% reduction of energy consumption compared with the DP based method. Results of the jerk of the art with PS strategy also show better performance in passenger comfort.

关键词： Rails Energy consumption Simulation Subspace constraints Real-time systems Planning Mathematical model

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the Design and Implementation of the Petroleum and Petrochemical Construction Project Valuation System

The Design and Implementation of the Petroleum and Petrochem...

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2012 4th international conference on Environmental science and Information Application Technology(ESIAT 2012)

作者： Wangxian Jiang Ming Zheng Hua Li School of Physics and nuclear energy engineering Beihang University

Based on the research of Chinese engineering valuation system and the application of bidding strategy, a computer aided valuation system is developed to improve work efficiency. the planning, modeling, design, development process of the system is discussed with introducing the development background, system programming, database design, module design etc., and the system's implementation effect is finally described.

关键词： Project cost, Petroleum and petrochemical, Application software

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Optimal Integration of Active and Reactive Power DGs in Distribution Network via a Novel Multi-Objective Intelligent Technique

Optimal Integration of Active and Reactive Power DGs in Dist...

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Power engineering Application (ICPEA), IEEE international conference in

作者： Azlina Abdullah Ismail Musirin Muhammad Murtadha Othman Siti Rafidah Abdul Rahim Sharifah Azwa Shaaya A.V. Senthil Kumar Department of Electrical & Electronics Engineering Universiti Tenaga Nasional Kajang Selangor Malaysia School of Electrical Engineering College of Engineering Universiti Teknologi MARA Shah Alam Selangor Malaysia Faculty of Electrical Engineering Technology Universiti Malaysia Perlis Kampus Pauh Putra Arau Perlis Malaysia Hindusthan College of Arts and Science City Campus Nava India Avinashi Road Coimbatore India

this work introduces a novel approach called the Multi-Objective Integrated Immune Moth Flame Evolutionary programming (MO-IIMFEP) algorithm. this algorithm aims to determine the optimal sizes and positions for Type III distributed generators (DGs) that generate both active and reactive power. the objectives involve reducing overall losses in the distribution system while adhering to voltage restrictions and taking into account the cost limitations connected with the installation of DG. MO-IIMFEP overcomes the constraints of traditional Evolutionary programming (EP) and Moth Flame Optimization (MFO), particularly in effectively handling local optima. Fuzzy logic is employed in MO-IIMFEP to determine the best solution to compromise conflicting goals, as obtained from the non-dominated Pareto solutions. the efficacy of MOIIMFEP in identifying optimal solutions for multi-objective problems is demonstrated through comprehensive assessments conducted on the 118-Bus Radial Distribution Systems (RDS), comparing it against MO-EP and MO-MFO. the results underscore the strategic benefits of DG installation in sustaining voltage levels, reducing power losses, and minimizing total operating costs for power suppliers.

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the Research and Design of Remote MCU Learing Plaform Based on the Combination of Virtual and Reality

The Research and Design of Remote MCU Learing Plaform Based ...

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2015 4th National conference on Electrical,Electronics and Computer engineering(NCEECE 2015)

作者： Chunrong CHEN Kaijin QIU College of Computer & Information Science Southwest University

ISBN: (纸本)9781510819085

Recently, there have been a great need in society for MCU learning especially in engineering and science. However, the environment development didn't match the increasing demand for MCU teaching in fact. On the one hand, the costs of learning at their own expense are high. On the other hand, limits of learning conditions and shortage of devices and space in MCU laboratories still exist. In this circumstance, the paper designs a remote MCU learning platform based on virtual reality where the MCU learners can learn MCU programming through network instead of on the MCU. the platform with low costs in this paper is not only convenient and user-friendly, but also reliable.

关键词： Remote Learning MCU learning Virtual and Reality combination

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Discussion on Basic Course of Modeling of Digital Media Application Technology Major in Higher Vocational Colleges——Case Study of Design Sketch

Discussion on Basic Course of Modeling of Digital Media Appl...

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2017 4th international conference on Education,Management and Computing Technology(ICEMCT 2017)

作者： Yunke Wei Guangdong Polytechnic of Science and Technology

Basic course of modeling refers to a required basic course covering "design sketch" and "three components". the research field of digital media application technology major is software interface design, requiring students to have certain fine arts foundation. the students of digital media application technology major of higher vocational colleges are non-art students who have no fine arts foundation. this paper is intended to analyze how teachers can guide students to overcome anxiety and develop an interest based on practical teaching experience, and put forward some practical methods of teaching of basic course of modeling of digital media application technology major.

关键词： Basic course of modeling Modeling ability Creativity Multiplicity

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Reconfigurable Intelligent Surface (RIS)-Assisted Wireless Systems: Potentials for 6G and a Case Study 4th

Reconfigurable Intelligent Surface (RIS)-Assisted Wireless S...

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4th international conference on Communication, Device and Networking, ICCDN 2020

作者： Le, Chi-Bao Do, Dinh-thuan Sur, Samarendra Nath Faculty of Electronics Technology Industrial University of Ho Chi Minh City Ho Chi Minh City Viet Nam Department of Computer Science and Information Engineering College of Information and Electrical Engineering Asia University Taichung city Taiwan Department of Electronics and Communication Engineering Sikkim Manipal Institute of Technology Sikkim Manipal University Majitar Sikkim737136 India

ISBN: (纸本)9789811629105

As one of the key technologies for deployment of future wireless networks, the state-of-the-art reconfigurable intelligent surfaces (RISs) have rapidly gained a massive interest among researchers. In a specific case study, we study the outage performance of RIS-aided wireless systems in the presence of non-orthogonal multiple access (NOMA) scheme. In particular, different power factors are allocated to users which belong to a dedicated group. We the derive the exact outage probability of two users in a group. Specifically, it is assumed that the RIS is placed between the source and the users and the far user has better performance under the assistance of RIS. We also provide a comparative analysis to investigate the effect of the main parameters on the outage performance of our proposed system, such as the number of tunable elements of the RIS, power allocation factors, target rates, and the average signal-to-noise ratio at the base station. By using Monte Carlo simulation, we verify our analytical results via simulations. Our main results reported in this paper show the positive effect once we deploy RISs for guaranteeing fairness among NOMA users in wireless systems. © 2022, the Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Monte Carlo methods

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Towards Faster Reasoners by Using Transparent Huge Pages 26th

Towards Faster Reasoners by Using Transparent Huge Pages

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26th international conference on Principles and Practice of Constraint programming, CP 2020

作者： Fichte, Johannes K. Manthey, Norbert Stecklina, Julian Schidler, André School of Engineering Sciences TU Dresden Dresden Germany Dresden Germany Algorithms and Complexity Group TU Wien Vienna Austria

ISBN: (纸本)9783030584740

Various state-of-the-art automated reasoning (AR) tools are widely used as backend tools in research of knowledge representation and reasoning as well as in industrial applications. In testing and verification, those tools often run continuously or nightly. In this work, we present an approach to reduce the runtime of AR tools by 10% on average and up to 20% for long running tasks. Our improvement addresses the high memory usage that comes with the data structures used in AR tools, which are based on conflict driven no-good learning. We establish a general way to enable faster memory access by using the memory cache line of modern hardware more effectively. therefore, we extend the standard C library (glibc) by dynamically allowing to use a memory management feature called huge pages. Huge pages allow to reduce the overhead that is required to translate memory addresses between the virtual memory of the operating system and the physical memory of the hardware. In that way, we can reduce runtime, which in turn decreases costs of running AR tools and applications with similar memory access patterns by linking the tool against this new glibc library when compiling it. In every day industrial applications, runtime savings allow to include more detailed verification tasks, getting better results of any-time optimization algorithms with a bound execution time, and save energy during nightly software builds. To back up the claimed speed-up, we present experimental results for tools that are commonly used in the AR community, including the domains ASP, hardware and software BMC, MaxSAT, and SAT. © 2020, Springer Nature Switzerland AG.

关键词： Cache memory

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Ocls: A simplified high-level abstraction based framework for heterogeneous systems

Lecture Notes in Electrical Engineering

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Lecture Notes in Electrical engineering 2016年 368卷 57-65页

作者： Wu, Shusen Dong, Xiaoshe Chen, Heng Dang, Bochao School of the Electronic and Information Engineering Xi’an Jiaotong University Xi’anShaanxi China

ISBN: (纸本)9789811000676

In contrast with the increasing popularity of heterogeneous systems, programming on these systems remains complex and time-consuming. Developers have to access heterogeneous processors through explicitly and error-prone operations provided by low-level approaches like OpenCL. We present OCLS (OpenCL Simplified), a high-level abstraction based framework and its implementation as a minimal library on the top of OpenCL. OCLS shields hardware details, simplifies the development process and handles the environment configuration and data movement implicitly. Its APIs act like ordinary functions and require little prior training. OCLS thus reduces heterogeneous programming effort and relieves the programmers of low-level programming. We evaluated OCLS across a set of different benchmarks. the size of benchmarks rewritten in OCLS reduced by an average ratio of 35.4 %. In the experiment on both GPU and Intel MIC platforms with data sets in different size, OCLS yielded better performance than original OpenCL programs and showed a good stability and portability. © Springer science+Business Media Singapore 2016.

关键词： Abstracting

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