12 research outputs found

    基于自适应搜索的空时上下文目标跟踪算法

    Get PDF
    视频监控行业已经快速进入了智能监控的时代.然而,自然非受控条件下获取的视频中,环境复杂多变,对其中各类行人目标检测跟踪带来挑战.针对各种复杂场景及不同目标,如何设计实现效率高、鲁棒性好、实时性强的目标跟踪识别技术仍然是当今业界研究的热点及难点.因此以监控领域非刚性的行人为主要研究对象,拟实现目标稳定检测跟踪,尤其是提高复杂背景下行人跟踪的精度.实验表明本文所提算法的重叠率准则(OR)和跟踪中心误差(CLE)超过现有最优目标跟踪算法算法,同时其跟踪速度也超过大多数算法.福建省教育厅科技项目(AT170435

    Study on Planning of Library Data Center Virtualization Network

    Get PDF
    针对厦门大学图书馆虚拟数据中心的网络设计问题,对底层虚拟网络进行分析和调优,提出数据隔离、链路冗余、带宽共用的虚拟网络设计原则,以期实现一个兼顾性能和可靠性的虚拟化数据中心网络设计方案。This paper targets on the network design problems in virtual data center of Xiamen University Library,including analysis and tuning of virtualized infrastructural network.It proposes the design principles of data segregation,links redundancy,and bandwidth sharing in order to implement a virtualized data center network with balance between performance and reliability

    基于改进自编码器的文本分类算法

    Get PDF
    词的向量化表达是文本挖掘应用的必要前提。为了改善自编码器在词嵌入中的效果,提高文本分类的准确性,提出了一种改进的自编码器并将其用于文本分类。在传统自编码器的基础上,在隐藏层加入了一个全局调整函数,其将绝对值小的特征值调整到绝对值大的特征值上,实现了隐藏层特征向量的稀疏化。得到调整后的特征向量之后,采用全连接神经网络进行文本分类。在20news数据集上的实验结果表明,所提方法具有更好的词向量嵌入式效果,并且在文本分类中也具有更好的效果。赛尔网络下一代互联网技术创新项目(NGII20160410)资

    大数据环境下图书馆用户个人的信息保护研究

    Get PDF
    本文从技术角度对大数据环境下图书馆用户个人的信息保护进行研究,探讨目前主流的用户个人信息保护技术,基于用户身份加密和属性加密的双重算法对用户信息保护的方法,结果满足图书馆个人信息保护需求,得出在大数据环境下用户身份和属性双重加密能够提高图书馆用户个人信息的保护能力.福建省中青年教师教育科研项目(JZ170332);福建省中青年教师教育科研项目(JAT170436

    Research and Practice of Virtualizing a Traditional DataCenter with Cloud Computing Technology

    No full text
    云计算与虚拟化是当今信息产业界最受关注的新技术。云计算的目标是将各种IT资源以服务的方式通过网络交付给用户。包括计算资源、存储资源、软件资源,都将像水电基础服务一样方便地被使用,并可按量计费。虚拟化实现了IT资源的逻辑抽象和统一表示,在大规模数据中心管理和解决方案交付方面发挥着巨大的作用,是支撑云计算构想的最重要的技术基石。 本文基于厦门大学一卡通数据中心2012年虚拟化改造项目,研究传统数据中心虚拟化升级遇到的技术难点,总结虚拟化实践中的软硬件方案规划原则,对底层虚拟网络、存储系统、服务器等组件进行了分析和调优.本文提出了数据隔离、链路冗余、带宽共用、集中存储、专用服务器、外设网络化等虚拟...Cloud computing and virtualization is today's most talked about new technologies of information industry. The goal of cloud computing is the way to a variety of IT resources to service delivery to users over the network including computing resources, storage, software resources, will be as easily be used as water and electricity infrastructure services, and metering. Virtualization realize the log...学位:工学硕士院系专业:信息科学与技术学院计算机科学系_计算机技术学号:X200722102

    The Management System of Campus Dormitory Network

    No full text
    简单网络管理协议(SNMP)是各类网络设备中通用程度度最高的协议之一,通过该协议可以实行对各类网络设备的控制及管理.本文给出了基于SNMP技术,对拥有各类不同品牌网络接入设备的复杂校园宿舍运营网的计费及控制管理系统的实现方法.Simple Network Management Protocol(SNMP) is one of the most universal protocol for network management.We can control and manage network device by this protocol.The paper based on SNMP,and described how to design and implement a simple network management system

    The Improvement of Measuring in Available Bandwidth Based on Pathload

    No full text
    有效带宽测量一直是计算机网络领域热衷研究的方向之一,但实际测量中受到诸多条件的限制,导致测试结果和用户使用体验总是不能令人满意.因此,在已有的端到端测量技术自加载的周期性探测流(SlOPS)上,通过摒弃不必要的反复迭代,改进其评估和速率调整算法,一定程度上提高了测试速度,更主要的是降低了网络不可靠因素等现实条件给测试结果带来精准度下降的可能性.实验表明,改进带来的测试结果较之前更贴近实际的网络状况,降低了参数的波动,提高了稳定性.The available bandwidth is one of hot topics in computer network research all the time.However,the measurement of it is constrained by several conditions.This paper bases on the popular techniques of end to end measurement for available bandwidth named SLoPS.It presents an improving algorithm of evaluating network capacity,which keep away from unnecessary iterations among the procedure.Users can shorten the whole measurement procedure to some degree,and will reduce the passive effects that some unreliable conditions lead to for the results of examines by this way.The experiment shows that results from optimization design are more precise than the original measurement stems from pathload.Meanwhile fluctuation of response parameters is also declined which enhances the stability of results

    福建省工程图学学科发展研究报告

    No full text
    总结了福建省工程图学学科的科技研究与应用、现代图学科技普及与技能培训、图学教育改革和人才培养的发展现状与存在的问题,指明了所面临的机遇和挑战,提出了我省工程图学学科今后一段时间的主要发展目标、海西建设的重点发展领域和具体对策

    Ziprasidone versus other atypical antipsychotics for schizophrenia

    No full text

    JUNO Sensitivity on Proton Decay pνˉK+p\to \bar\nu K^+ Searches

    Get PDF
    The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in pνˉK+p\to \bar\nu K^+ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via pνˉK+p\to \bar\nu K^+ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is 9.6×10339.6 \times 10^{33} years, competitive with the current best limits on the proton lifetime in this channel
    corecore