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检索条件"主题词=Computer algorithms"
3274 条 记 录,以下是501-510 订阅
排序:
Simultaneous enhancement and noise reduction of a single low-light image
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IET IMAGE PROCESSING 2016年 第11期10卷 840-847页
作者: Zhang, Liang Shen, Peiyi Peng, Xilu Zhu, Guangming Song, Juan Wei, Wei Song, Houbing Xidian Univ Sch Software Xian 710071 Peoples R China Xian Univ Technol Dept Comp Sci & Engn Xian 710048 Peoples R China West Virginia Univ Dept Elect & Comp Engn Montgomery WV 25136 USA
Images obtained under low-light conditions tend to have the characteristics of low-grey levels, high-noise levels, and indistinguishable details. Image degradation not only affects the recognition of images, but also ... 详细信息
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Incremental Optimization Mechanism for Constructing a Decision Tree in Data Stream Mining
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MATHEMATICAL PROBLEMS IN ENGINEERING 2013年 第1期2013卷 1-14页
作者: Yang, Hang Fong, Simon Univ Macau Fac Sci & Technol Dept Comp & Informat Sci Taipa Peoples R China
Imperfect data stream leads to tree size explosion and detrimental accuracy problems. Overfitting problem and the imbalanced class distribution reduce the performance of the original decision-tree algorithm for stream... 详细信息
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Approximations with piecewise constant fluxes for diffusion equations on polyhedral meshes: algorithms and applications
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RUSSIAN JOURNAL OF NUMERICAL ANALYSIS AND MATHEMATICAL MODELLING 2012年 第4期27卷 339-368页
作者: Boyarkin, O. Kikinzon, E. Kuznetsov, Yu. A. Prokopenko, A. Univ Augsburg Inst Math D-86135 Augsburg Germany Univ Houston Dept Math Houston TX 77204 USA
In this paper we consider implementation algorithms and applications of the discretization method for diffusion equations on polygonal (2D) and polyhedral (3D) meshes recently proposed by one of the authors in [11]. T... 详细信息
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Conservative algorithm of substance transport over a closed graph of cardiovascular system
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RUSSIAN JOURNAL OF NUMERICAL ANALYSIS AND MATHEMATICAL MODELLING 2012年 第5期27卷 413-429页
作者: Borzov, A. G. Mukhin, S. I. Sosnin, N. V. Moscow MV Lomonosov State Univ Computat Math & Cybernet Dept Dept Math Methods Moscow 119991 Russia
Mathematical models and numerical algorithms of substance transport over a closed graph of a cardiovascular system must, satisfy the property of conservativity. A conservative model and a numerical algorithm for calcu... 详细信息
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Call center operation model as a MAP/PH/N/R-N system with impatient customers
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PROBLEMS OF INFORMATION TRANSMISSION 2011年 第4期47卷 364-377页
作者: Dudin, S. A. Dudina, O. S. Belarusian State Univ Minsk BELARUS
We analyze a multiserver queueing system with a finite buffer and impatient customers. The arrival customer flow is assumed to be Markovian. Service times of each server are phase-type distributed. If all servers are ... 详细信息
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Rolling Operation Algorithm for Solving Complex Scheduling Problems
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 2009年 第8期48卷 3898-3908页
作者: Czuczai, Barbara Farkas, Tivadar Rev, Endre Lelkes, Zoltan Budapest Univ Technol & Econ Dept Chem & Environm Proc Engn H-1111 Budapest Hungary Budapest Univ Technol & Econ Dept Chem Engn HAS BUTE Mat Struct & Modeling Res Grp H-1521 Budapest Hungary
Large-scale scheduling problems have remained difficult to solve despite the intense research in the area and many successful algorithms. In this paper, a new decomposition algorithm is presented which finds a good fe... 详细信息
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Distribution of additive functions with respect to numeration systems on regular languages
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THEORY OF COMPUTING SYSTEMS 2007年 第3期40卷 205-223页
作者: Grabner, Peter J. Rigo, Michel Graz Univ Technol Inst Math A-8010 Graz Austria Univ Liege Inst Math B-4000 Liege Belgium
We study the distribution of values of additive functions related to numeration systems defined via regular languages.
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Quasilinear Extreme Learning Machine Model Based Internal Model Control for Nonlinear Process
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MATHEMATICAL PROBLEMS IN ENGINEERING 2015年 第1期2015卷 1-9页
作者: Li, Dazi Xie, Qianwen Jin, Qibing Beijing Univ Chem Technol Inst Automat Beijing 100029 Peoples R China
A new strategy for internal model control (IMC) is proposed using a regression algorithm of quasilinear model with extreme learning machine (QL-ELM). Aimed at the chemical process with nonlinearity, the learning proce... 详细信息
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A Novel Online Self-Structuring Fuzzy Control Algorithm and Its Application
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MATHEMATICAL PROBLEMS IN ENGINEERING 2015年 第1期2015卷 1-10页
作者: Feng, Siyuan Bao, Hong Duan, Xuechao Xidian Univ Key Lab Elect Equipment Struct Design Minist Educ Xian 710071 Peoples R China
This paper proposes a novel self-structuring algorithm for the online adaptive fuzzy controller (SA-OAFC). The SA-OAFC capable of adding and deleting inference rules autonomously can start operating with an empty set ... 详细信息
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A chaos-based image encryption algorithm with variable control parameters
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CHAOS SOLITONS & FRACTALS 2009年 第4期41卷 1773-1783页
作者: Wang, Yong Wong, Kwok-Wo Liao, Xiaofeng Xiang, Tao Chen, Guanrong Chongqing Univ Posts & Telecommun Key Lab Elect Commerce & Logist Chongqing Chongqing 400065 Peoples R China City Univ Hong Kong Dept Elect Engn Kowloon Tong Hong Kong Peoples R China Chongqing Univ Dept Comp Sci & Engn Chongqing 400044 Peoples R China
In recent years, a number of image encryption algorithms based oil the permutation-diffusion structure have been proposed. However, the control parameters used in the permutation stage are Usually fixed in the whole e... 详细信息
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