指纹和声音自动识别系统的设计与实现

为了快速和准确地鉴别有关人员的身份,开发一个指纹和语音自动识别系统。该系统通过采集指纹图像和语音信号,采用参考模型和相似度计算分别实现了指纹和语音识别。实验结果表明该系统不仅能自动地识别指纹和语音,而且还能实时地将识别结果与指纹和语音数据库进行比对,从而迅速地获得被识别人员的身份信息。该系统在监控出入境关口、机场车站、机关大院、住宅小区、以及刑事侦察等场合有着广泛的应用前景。     

The Nigerian Scam Just Keeps on Going and Going and Going and Going

Stop everything! I have found the answer to all your problems — millions of dollars, and it is free money! It is better than the Lotto! Better than gambling in Monte Carlo, or Las Vegas! There is no risk! No catch! You will no longer need to work. You can buy everything you ever wanted. Imagine that! Your kids can attend the best of schools; you can live in a great new house, with only one or two servants, as you don’t want to be too spoiled. No mortgage. No bills. Just think of it. You can jet with the jet set. You can travel the world first class. Oh, what a life!     

门限多代理多签名方案

将门限签名体制引入到多代理多签名方案中,首次提出了一个门限多代理多签名方案.新方案不仅能实现多个原始签名人将签名权委托给多个代理签名人,还能将每个代理人的密钥进行分享,实现一定数量的原始签名人就能授权,一定数量的代理签名人就能产生有效的代理签名.另外,新方案还可以控制代理签名的有效时间和回收代理签名权.     

矿井通风除尘试验装置及PLC监控系统设计

基于实验室通风环境,设计了一套矿井通风除尘试验装置及PLC监控系统。该通风除尘试验装置集通风与除尘功能于一体,能自动监测通风机与除尘器的风量、风压、阻力等性能参数;PLC监控系统可对通风机、发尘器进行远程/就地开停及变频调速控制,实时监测通风机、发尘器运行状态、运行电流、运行频率等参数,模拟并实现了矿井通风系统的井下通风计算机远程集中监控。实际应用表明,该系统运行稳定可靠、操作简便、可扩展性强。     

一种新的快速特征选择和数据分类方法

针对数据分类问题提出一种新型高效的特征选择和规则提取方法.首先通过减少初始区间数量改进Chi-Merge离散化方法,再采用改进的Chi-Merge离散化连续型特征变量;特征离散化后,统计样本数据在每个特征子集划分下的频数表,并根据频数表计算数据不一致率,再利用顺序前向最优搜索的方法,快速确定特征数量由小到大的每一个最优特征子集;根据特征子集对应的数据不一致率差异最小化原则,完成特征个数最小化的最优特征子集筛选;根据最优特征子集的数据频数表,可直接提取数据分类规则.实验表明,快速提取的规则可获得较好的分类效果.基于该特征选择方法,提出一种面向分布式同构数据的快速分类模型,不但具有良好的分类效果,还支持对样本数据内容的隐私保护.     

Confluence operators and their relationships with revision,update and merging

In this paper we introduce confluence operators, that are inspired by the existing links between belief revision, update and merging operators. Roughly, update operators can be considered as pointwise revision, whereas revision operators can be considered as special case of merging operators. Confluence operators are to merging operators what update operators are to revision operators. Similarly, update operators can be considered as special case of confluence operators just as revision can be considered as special case of merging operators. Confluence operators gives all possible agreement situations from a set of belief bases.     

基于物联网的生活废水智能管理与综合利用系统的设计与实现

为了解决用水与水资源紧缺的矛盾,保护环境,文章运用传感器技术,对生活废水进行统一的判断、处理和分类,并把得到的可二次利用的废水储存起来进行二次利用,给出了一种基于物联网的生活废水智能管理与综合利用系统的设计方案。整个系统采用软件与硬件相结合的模式,可实现生活废水的智能管理与综合利用;避免了化学试剂对废水处理所带来的环境影响,节省了人工处理所耗费的资源,提高了废水处理和废水利用的效率。     

基于ARM和GPRS的远程家用监控系统的设计

提出了基于ARM处理器、视频数据采集处理、GPRS、Web技术的远程家用监控系统.该系统可以根据需要对家里的情况进行实时监控,并可以通过手机对主人进行提示,以处理紧急事务.设计了系统的模型和主要的实现,达到系统的设计要求.完成对家里情况的实时监控,有效地提示家里的突发事件.     

弱电工程施工和管理研究与探讨

弱电工程项目的质量控制的关键是对工程的设计、施工和管理过程进行严格的控制和把关,并按规范步骤进行操作和实施。通过工程的前期沟通、技术选择、需求确定、配置清单和施工图纸等措施可规范设计过程。通过施工前会议、施工要点、材料和设备采购、工程进度、方案设计等措施可规范施工过程。通过制定施工组织和协调管理等措施可规范施工管理。通过规范的设计、施工和管理可以提高工程质量和工程效益。     

Remember and forget: video and text fusion for video question answering

Video question answering (Video QA) has received much attention in recent years. It can answer questions according to the visual content of a video clip. Video QA task can be solved only according to the video data. But if the video clip has some relevant text information, It can also be solved by using the fused video and text data. How to select the useful region features from the video frames and select the useful text features from the text information needs to be solved. And how to fuse the video and text features also needs to be solved. Therefore, we propose a forget memory network to solve these problems. The forget memory network with video framework can solve Video QA task only according to the video data. It can select the useful region features for the question and forget the irrelevant region features from the video frames. The forget memory network with video and text framework can extract the useful text features and forget the irrelevant text features for the question. And it can fuse the video and text data to solve Video QA task. The fused video and text features can help improve the experimental performance.     

复杂性和意义含糊问题的定性仿真和控制

许多系统是高阶、时变、非线性，传统的模型分析方法不容易应用。定性推理能避免复杂的数学计算，定性推理有吸引力是因为它涉及到物理系统一般原理的描述，这意味着一个特殊的定性模型能用于描述一个大范围的起作用的条件。在工程上定性推理用于监控和诊断。本文阐述如何用定性推理技术去仿真和控制液位系统的问题。     

基于Flex＋Spring体系的网络数据挖掘系统的设计与实现

提出一种基于Flex＋Spring体系的网络数据挖掘系统方案。用户通过浏览器远程调用各种数据挖掘算法对指定的数据源进行挖掘处理并最终获得挖掘结果的动态展示效果,实现数据挖掘系统的跨平台性、算法的可移植性以及客户端更丰富、更强的交互性和响应性。     

下采样和插值同一性的实现及其应用

针对常用的图像下采样方法无法满足不同应用需要的问题,提出下采样和插值在实现技术上具有同一性的特点,下采样可以采用插值的大量先进技术。将下采样与插值均看作是对邻域未知像素的预测,建立了统一的像素预测模型。实验结果验证了该同一性的思想,并表明与常用的下采样方法相比,在具有保持特征、保护边缘、维持平滑等特性的基础上,能够使下采样后的图像保持更多的信息,从而为下采样在不同应用中的实现提供了更多可选择的方法。     

板材排样中非拟合多边形的构造实现方法

非拟合多边形可用于处理两维的不规则形状的板材排样问题.先前,基于非拟合多边形的构造很难实现,并且也没有通用的方式来处理多种特殊情况,从而非拟合多边形并没有被广泛的使用.本文介绍了一种基于环绕的实现方式来构造非拟合多边形,对各种特殊情况能统一解决,例如互锁,交叉等.通过对ESICUP的数据集测试,表明该方法具有一定的效果,可以对板材排样的解决思路提供一定的借鉴.     

Data analytics and visualization for inspecting cancers and genes

This paper describes our latest research in data analytics and visualization for bioinformatics and healthcare. Each year many patients have suffered cancers. Analytics and visualization can help to simulate the development of malignant tumors and help identify weak spots of tumor for treatment, inspect malignant tumors in general and inspect whether genes have cancerous cells. Related literature, technologies, simulation results with explanation, performance evaluation and comparisons with other work have been discussed in details. We can process training data with a low completion time to achieve simulations of malignant tumors and genes to inspect their status, as well as the querying the output data within seconds. Our malignant tumor and gene simulation can achieve 360 degrees for an inspection of cancerous presence. We conclude that data analytics and visualization can provide effective and efficient healthcare research and also other type of interdisciplinary research.     

门限多代理多签名方案*

将门限签名体制引入到多代理多签名方案中,首次提出了一个门限多代理多签名方案。新方案不仅能实现多个原始签名人将签名权委托给多个代理签名人,还能将每个代理人的密钥进行分享,实现一定数量的原始签名人就能授权,一定数量的代理签名人就能产生有效的代理签名。另外,新方案还可以控制代理签名的有效时间和回收代理签名权。     

Enhanced locomotive and drilling microrobot using precessional and gradient magnetic field

We propose a new electromagnetic actuation (EMA) system for an intravascular microrobot with steering, locomotion and drilling functions. The EMA system consists of 3 pairs of Helmholtz coil and 1 pair of Maxwell coil. Generally, Helmholtz coils can align a microrobot in a desired direction by generating a uniform magnetic flux. If the uniform magnetic field generated by Helmholtz coils can be rotated, a microrobot with Helmholtz coils can also be rotated. On the other hand, a Maxwell coil, which generates a constant gradient magnetic flux, can supply the propulsion force for the microrobot. A microrobot actuated by the proposed EMA system has a spiral shaped body containing two magnets with different magnetization directions. With the proposed EMA system, the microrobot can move to the target region and perform drilling there by the precessional magnetic field of the Helmholtz coil pairs. The propulsion force for the microrobot is produced by the gradient magnetic field generated by the Maxwell coil pair. The moving velocity and the drilling performance of the microrobot can be increased by the propulsion force of the Maxwell coil pair. Through various tests, the feasibility and enhancement of the microrobot actuated by the proposed EMA system were verified.     

Path feasibility and modification

Kinematic feasibility of a planned robot path is restrained by the kinematic constraints of the robot executing the task, such as workspace, configuration, and singularity. Since these kinematic constraints can be described utilizing the geometry of the given robot, corresponding regions within the robot workspace can be expressed in geometrical representation. Consequently, geometric information can be derived from the planned path and the geometric boundaries of these regions. Then, by utilizing the geometric information and proper modification strategies, a Cartesian robot path that is kinematically infeasible can be modified according to different task requirements. To demonstrate the proposed feasibility and modification schemes, simulations for a 6R robot manipulator are executed.     

主动队列管理中的APD和APID控制器的设计*

AQM策略作为终端系统上网络拥塞控制的一种补充,能在保证较高吞吐量的基础上有效地控制队列长度,从而实现控制端到端的时延,保证QoS。理论上,很多AQM机制可以最终归结为PID控制器。因此在研究PD和PID控制器模型的基础上,设计了两种新的适应性控制机制,即APD和APID控制器,使系统在网络变化的情况下能提高其稳定性和网络性能,并仿真验证了这两种新算法的稳定性和网络性能。     

学校考试系统的设计与实现

学校考试系统采用上机考试的形式,教师可以对现有的试题库进行更新,学生可以答题,管理人员能够对现有的用户进行管理,快速实现考试过程中的各项任务。