Now showing items 1-20 of 471

    • 2-3 查找树: 概念、算法和分析 

      郭福顺; 廖明宏; 李莲治; 刘桂英 (哈尔滨工业大学学报, 1994-08)
      从抽象数据类型的观点提出2-3查找树的概念, 给出一系列与集合运算有关的算法, 包括求并集、交集、差集, 测集合包含关系等, 并分析算法的时问复杂性。结果表明, 它比二元查找树更为有效。 。
    • 2个代理签名方案的安全性分析 

      黄斌; 史亮 (2013-03-28)
      针对fu等提出的改进的适用于移动通信的代理签名方案和代理聚合签名方案的安全性,提出了相应的攻击方法.通过对代理私钥的等价构造,原始签名人可以容易地伪造合法的代理签名和代理聚合签名,从而说明fu等添加随机数的方法是无效的.安全分析表明,fu等的代理签名方案和代理聚合签名方案都不满足强不可伪造性,是不安全的代理签名方案,不能应用于移动通信.
    • 3D虚拟现实技术在动画教学中的应用研究 

      陈俐燕; 王备战 (2011-10-15)
      文章分析了3D虚拟现实系统的特点、构成及功能类型,深入探讨了3D虚拟现实技术在动画教学中的应用,从课程拓展、知识学习、实验探索以及远程教学四个方面进行了阐述。同时,对3D虚拟现实技术现存的问题和以后的发展前景也进行了讨论。
    • 4G移动通信关键技术浅析 

      于倩 (2009)
      随着人们对传输速度、传输质量要求的不断提高,移动通信系统也在不断更新换代。4g通信系统更以高传输速率、无缝漫游、高智能性以及良好覆盖性吸引着人们的眼球,本文拟对4g移动通信系统中的关键技术进行分析,展望4g移动通信系统的前景发展。
    • A 2-Layer Web Server for Enzyme and Multifunctional Enzyme Identification 

      Wei, Leyi; Li, Guilin; Gao, Xing; Chen, Weicheng; Xuan, Ping; Liao, Minghong; 李贵林; 高星; 廖明宏 (BENTHAM SCIENCE PUBL LTD, 2014 FEB)
      With the explosive growth of databanks consisting of protein sequences, there is an increasing need for annotating a number of newly discovered enzyme sequences. Given a protein sequence, the question arises on how to ...
    • A class similarity based weight estimation algorithm for the personalized enterprise search engines 

      Wang, Wei; Chen, Liyan; 陈俐燕 (Binary Information Press, 2014)
      Personalized search is important for the enterprise search engines. Class based model is a typical model to represent the personality of a user. A weight, representing the degree of a user's preference to a particular ...
    • A clonal selection algorithm for classification of mangroves remote sensing image 

      Luo, Yan-Mi; Liao, Ming-Hong; 廖明宏 (Science and Engineering Research Support Society, 2014)
      As a new computational intelligence model based on artificial immune systems, clonal selection algorithm has been widely utilized for data analysis and pattern recognition. Recently it was applied to remote-sensing image ...
    • A general measure of similarity for categorical sequences 

      Kelil, Abdellali; Wang, Shengrui; Jiang, Qingshan; Brzezinski, Ryszard; 姜青山 (KNOWL INF SYST, 2010-08)
      Measuring the similarity between categorical sequences is a fundamental process in many data mining applications. A key issue is extracting and making use of significant features hidden behind the chronological and structural ...
    • A genetic programming-based approach to the classification of multiclass microarray datasets 

      Liu, Kun-Hong; Xu, Chun-Gui; 刘昆宏 (BIOINFORMATICS, 2009-02-01)
      Motivation: Feature selection approaches have been widely applied to deal with the small sample size problem in the analysis of microarray datasets. For the multiclass problem, the proposed methods are based on the idea ...
    • A heuristic approximately duplicate records detection algorithm based on attributes analysis 

      Zhang, Zhongnan; He, Ling; Tan, Yize; Liao, Minghong; 张仲楠; 廖明宏 (Advanced Institute of Convergence Information Technology, 2012 March)
      Approximately duplicate records' cleaning is important in the field of data cleaning. However, due to different data representations in different data sources or errors because of various reasons, determining whether two ...
    • A Method for Automatically Determining The Number of Clusters of LAC 

      Liu, Han; Wu, Qingfeng; 吴清锋; Dong, Huailin; Wang, Shuangshuang; Cai, Qing; Ma, Zhuo (2009)
      The algorithm of locally adaptive clustering for high dimensional data (LAC) processes soft subspace clustering by local weightings of features. To solve the localization of LAC in specifying the number of clusters, this ...
    • A method of cartoon image vecorization based on diffusion curve 

      Liao, Minghong; Zhou, Shaobin; Gao, Xing; Lin, Juncong; Yang, Lihua; Li, Guilin; 廖明宏; 高星; 林俊聪; 李贵林 (Binary Information Press, 2014 Decem)
      As the vector image takes little space to store, and it won't be distorted to have sawtooth when being zoomed or rotated, it can be used to show high-quality cartoon pictures on mobile devices. According to the characteristics ...
    • A model of virtual resource scheduling in cloud computing and its solution using EDAs 

      Zhao, Jianfeng; Zeng, Wenhua; Liu, Miu; Li, Guangming; 曾文华 (Advanced Institute of Convergence Information Technology, 2012 March)
      Resource scheduling becomes more complex as the introduction of virtualization technology in cloud computing. This paper proposed a resource scheduling model using the concept of resource service ratio as an object function ...
    • A new index of navigating complex for maritime traffic situation 

      Pan, Jiaca; Jiang, Qingshan; Shao, Zheping; 姜青山 (Binary Information Press, 2014 Decem)
      This paper describes a real time index of navigating complex model based on the traffic information from the ship's Automatic Identification System (AIS). This index model shows the real time navigating complex situation ...
    • A new model for finding approximate tandem repeats in DNA sequences 

      Jiang, Qingshan; Li, Sheng; Guo, Shun; Wei, Dan; 姜青山 (Academy Publisher, 2011)
      In gene analysis, finding approximate tandem repeats in DNA sequence is an important issue. SUA_SATR is one of the latest methods for finding those repetitions, which suffers deficiencies of runtime cost and poor result ...
    • A Novel Enterprise Credit Scoring Method Based On Random Forest 

      Wu Jing; Dong Huailin; Wu Qingfeng; Wang Wei; Maoqing, LI; 吴清锋 (2008)
      In this paper we propose a new method for enterprise credit scoring model. The proposed method is based on Random Forest. Recently, with the development of economy, enterprise credit scoring system play an increasingly ...
    • A Novel Eye Localization Method Based on Log-Gabor Transform and Integral Image 

      Wang, Jinglei; Long, Fei; Chen, Jiping; Yao, Junfeng; 姚俊峰 (NATURAL SCIENCES PUBLISHING CORPORATION, 2012-04)
      A robust and precise eye localization method plays a critical role in automatic face recognition system. In this paper, a novel eye localization approach using Log-Gabor transform and integral image is proposed. This method ...
    • A novel hierarchical clustering algorithm for gene sequences 

      Wei, Dan; Jiang, Qingshan; Wei, Yanjie; Wang, Shengrui; 姜青山; 王声瑞; 魏丹 (BioMed Central Ltd., 2012 July )
      Background: Clustering DNA sequences into functional groups is an important problem in bioinformatics. We propose a new alignment-free algorithm, mBKM, based on a new distance measure, DMk, for clustering gene sequences. ...
    • A Novel Method for Fatigue Detection Based on Fuzzy Logic 

      Dong, Huailin; Chen, Weijin; Wu, Qingfeng; Zhilin, Z; Wang, P; 吴清锋 (2011)
      The problem of fatigue is becoming one of the factors impacting on the working and studying people. Therefore, how to detect whether the people are tired simply and effectively is paid attention to by more and more ...
    • A novel mobility model based on semi-random circular movement in mobile ad hoc networks 

      Wang, Wei; Guan, Xiaohong; Wang, Beizhan; Wang, Yaping; 王备战 (INFORM SCIENCES, 2010-02-01)
      When simulating a mobile ad hoc network (MANET), it is important to use a realistic mobility model to reflect the actual performance of a mobile system. The spatial distribution of node locations in a mobile model plays a ...