Now showing items 1-20 of 6597

    • 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。 。
    • 2.5D网络游戏客户端中动作管理系统的设计与实现 

      黄昌彦 (2015-01-06)
      为了带给玩家流畅的动作体验、畅快的连招表现,必须为游戏量身订造一个动作管理系统。目前国外在售的商业游戏引擎,通常已经附带了动作管理系统。但对于国内的小型开发者团队而言,斥巨资购买昂贵的引擎未免性价比太低。作者所在的公司正是出于成本问题的考虑,将2.5D网游客户端游戏引擎的研发任务交给团队内部解决。 游戏动作管理系统是游戏引擎的一个模块,它将上层业务逻辑模块和下层游戏动作解释模块衔接起来。向上,它负责接收业务逻辑模块传来的动作指令并管理; ...
    • 24 小时宠物寄存管理系统的设计与实现 

      潘杨凡 (2016-03-02)
      随着人们生活水平的提高,工作压力也越来越大,为了舒缓压力,就会养宠物。现代人饲养宠物,或者为了舒缓压力,或者为了排解心中的寂寞,已经成为一种生活的需要。宠物的价值在于能够满足人社会需求的不足,或者说能够弥补人类生活中缺失的心理层次的内容。养宠物之后,问题就来了,饲主不可能全天候都陪着自己的爱宠,当饲主出差、旅游或者其他事情,不能带着自己的爱宠时,宠物该怎么办呢,宠物行业应运而生,宠物行业已经成为很多企业和个人投资看好的朝阳产业。 ...
    • 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 image skeleton algorithms 

      Wu, Jiangui; Duan, Hong; Zhong, Qi; 段鸿 (IEEE Computer Society, 2011)
      Skeletons are compact representations of the original objects, which are useful for many visualization tasks including medical imaging, computer graphics, computer-aided design. We introduce the basic concepts and properties ...
    • 3D打印成本核算系统的设计与实现 

      阙锦龙 (2018-01-02)
      3D打印技术作为第三次工业革命的代表性技术之一,越来越受到工业界和投资界的关注。当前3D打印成本高,不仅仅是企业级3D打印机价格高,更重要的是3D打印材料价格偏贵。因此,在将3D模型文件打印前,快速评估各种材料下的打印成本,是所有从业者非常迫切的需求。传统的打印成本核算都是基于线下的,即打印服务商收到3D打印模型后,人工通过3D模型软件进行体积计算,然后按照材料和自定义的计算公式计算打印成本。这种方式耗时长,人工成本高,错误率高,用户体验差。 ...
    • 3D棒球游戏的设计与实现 

      魏强 (2008-12-05)
      游戏是以计算机和游戏机为平台,通过人机互动的方式,将情感互动、故事铺展、视觉表现、用户界面、艺术风格融合在一起的一种大众娱乐方式。它综合运用了计算机图形学技术、人工智能技术、多媒体技术、网络与通信技术,是现代大众娱乐方式中的一个重要组成部分。游戏的发展从设计思想上可以划分为传统游戏、网络游戏和虚拟现实游戏,从技术上又经历了2D和3D两个阶段。传统游戏从最初简单的电视互动游戏开始,经过了电子游戏、益智游戏、电脑单机游戏等发展过程。随着电脑 ...
    • 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。
    • 4S店集团新车销售库存管理系统的 设计与实现 

      赵祖联 (2014-01-08)
      随着国民经济的发展,汽车由过去的奢侈品逐渐变成大众消费品,成了更多人的代步工具。作为汽车生产和销售大国,我国汽车经销商集团在迎来良好发展机遇的同时也面临着问题:总部和4S店之间沟通不及时,潜在客户成交管理、销售车辆分析、新车销售价格管控、销售运营报表管理等方面工作不规范,严重影响了汽车经销商集团企业的竞争能力。 本论文以某汽车集团为企业原型,针对其实际需求进行设计开发出一套实用的新车销售库存管理系统,提升4S店集团信息的灵活性和实时性, ...
    • 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 3D Controllable Head and Face Modeling Method for a Certain Person 

      Hong, Duan; 段鸿 (IEEE COMPUTER SOC, 2008)
      Presents a method to reconstruct a controllable 3D head and face model for a specific person. The 3D grid-muscle head and face model of the certain person is created after selecting key feature points from a front face ...
    • 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 collaborative filtering recommendation algorithm based on user clustering and Slope One scheme 

      Wang, Jingjin; Lin, Kunhui; Li, Jia; 林坤辉 (IEEE Computer Society, 2013)
      Recommendation system has been widely used in electronic commerce, news, web2.0, E-learning and other fields. Collaborative filtering is one of the most important algorithms. But as scale of recommendation system continues ...
    • A fast and smooth carving algorithm for online 3D reconstruction 

      Gao, Xing; Yu, Ning; Liao, Ming-Hong; 廖明宏 (Trans Tech Publications, 2013)
      Online rapid three-dimensional reconstruction is widely applied in virtual reality, heritage preservation, bio-engineering and architectural fields. The error caused by image quality or manual import is the main reason for ...
    • A Fast Eye Localization Algorithm Using Integral Image 

      Huang, Chunde; Lin, Kunhui; Long, Fei; 林坤辉; 龙飞 (IEEE COMPUTER SOC, 2009)
      Eye localization is an essential step in automatic face recognition system(AFRC), since it has a direct influence on the overall recognition performance. In this paper, we present a simple and fast eye localization algorithm, ...
    • A fast simulation for thousands of M/2M/2 parallel Homogeneous Fork/Join pipelines 

      Chen, Ray Jinzhu; Tong, Muchenxuan; Jiang, Chuan; 姜川 (IEEE Computer Society, 2011)
      We study a parallel K-pipeline HFJ (Homogeneous Fork/Join queueing) system in which each pipeline has two identical exponential first-in-first-out services where each service has an infinite capacity queue. Jobs arrive ...
    • A feature selection method for malware detection 

      Jiang, Qingshan; Zhao, Xinxing; Huang, Kai; 姜青山; 黄凯 (IEEE Computer Society, 2011)
      Due to the serious network security problems in recent years, a large number of malware features have been emerged, which leads to increasing time-complexity and space-consumption for malware detection systems. Moreover, ...
    • A fingers vector detection method based on K vector and K-medoids clustering algorithm 

      Duan, Hong; Cai, Kun Yu; 段鸿 (Trans Tech Publications Ltd, 2013)
      This paper proposed a method of computing the hand direction vector. At first, using Kvector method, compute the K-slope of all the points on the contour to get a series of peak point sets; Then, cluster the sets which ...