浅谈Web网站的功能与性能测试的实现

为了有效确保Web网站的质量,需要针对Web网站的页面内容、链接、数据采集、速度、负载、压力、兼容性、安全性及易用性等功能及性能方面进行测试。本文重点针对Web网站的功能及性能测试的主要内容及方法进行了探讨,以供参考和借鉴。     

网页静态链接文本安全相关性分析算法研究

文中采用网页代码的静态文本特征分析的方法,讨论并分析网页静态链接安全相关性的技术研究．首先根据当前网站木马分析研究的现状及存在的问题,提出了网页静态链接关系分析模型,并描述了网页链接文本安全相关性的分析算法;然后对模型及算法进行了算法的数学表示,并给出算法实现的数据结构．最后通过对实验结果的分析,验证了该算法的可靠性和合理性．     

基于双向关联规则的网络消费者偏好挖掘研究

通过分析电子商务网站的 Web 服务器日志提取网络消费者的商品浏览行为信息,利用消费者的浏览频率、浏览时间、链接路径数及路径深度估计商品对网络消费者当前浏览期间偏好的影响权重.结合双向关联规则理论和 Apriori 算法挖掘具有相互依赖关系的商品,找出网络消费者的商品偏好浏览路径,根据消费者当前的浏览行为发现其可能感兴趣的商品,并进一步计算消费者对商品的偏好程度.最后利用自主开发的旅游电子商务网站的Web 日志数据进行仿真实验,挖掘网络消费者的旅游偏好.实验结果表明,在相同的实验条件下,与基于关联规则的偏好挖掘方法相比,基于双向关联规则的偏好挖掘方法的推荐精度增加,推荐覆盖率扩大.     

Web2．0在图书馆网站构建中的应用

传统图书馆刚站存在缺少主动服务、互动服务、个性化服务以及共享难等缺点。Web2．0技术为改进图书馆网站提供了技术支撑。Web2．0的服务形式主要有Blog、WIKI、RSS、TAG、BookMark、WebService等。Web2．0环境下的图书馆网站应满足如下几方面要求：开通图书馆博召,增强交流;利用wiki来构建公众知识库;实施信息订阅,及时传递最新信息;开创大众化tag,方便信息理解;建立个’陀化书签,发抖个性化服务;大力开展Web服务,实现信息共享。     

一种Deep Web聚焦爬虫爬行策略

实现大规模Deep Web数据源集成是方便用户使用Deep Web信息的一种有效途径,Deep Web爬虫是Deep Web数据源集成的关键组成部分,提出一种针对结构化Deep Web的聚焦爬虫爬行策略,通过对查询接口的特征分析来判断Deep Web数据源的主题相关性,同时,在评价链接重要性时,综合考虑了页面内容的主题相关性和链接的相关信息,实验证明该方法是有效的.     

基于关联规则的网络行为分析

网络用户访问网站的过程中,产生了大量的用户浏览网页的相关记录,隐含着用户在上网过程中的行为习惯。但其中潜在的用户信息难以发现。因此,急需有效的方法提取这些数据中的信息,数据挖掘应用而生。其中,关联规则技术是应用广泛的技术之一。文中利用Apriori算法对Web结构数据进行关联规则挖掘,所得到的规则反映出页面之间的链接关系。分析挖掘结果可得到用户访问的行为规律,为相关网站的安全性和优化改进提供有效的决策依据。     

基于聚类分析策略生成动态网页链接

通过聚类方法分析用户的行为模式(喜好和习惯),对Web日志数据进行数据净化、用户识别、会话识别、帧页面识别和路径补充,然后自动生成动态的链接,让用户能迅速地从数量庞大的网站网页中找到自己喜欢的、想要的数据,从而节约了用户的网络资源和时间,也提升了网站的竞争能力。     

一种基于用户访问模式优化网站结构的算法

提出一种算法，通过挖掘Web日志中的关联规则，发现用户访问兴趣间的关联度和站点拓扑结构的不一致，并结合网站既有的拓扑结构，对于通常在用户的某次浏览过程中同时被访问．但在网站拓扑中相距较远的内容页面集，增加页面间的直接链接，最终实现网站系统结构的调整、优化，提高网站的访问效能。     

基于网站制作的Web前端开发技术与优化

所谓Web就是全球广域网,它标志着信息时代的到来,是科技信息发展的产物。Web前端开发的前身是网页制作,初始的网站设计通常以静态为主,网站用户主要在网站上进行信息浏览。其后Web不断的发展和进步,数据的交互开始不断刷新,网页跳转的次数也逐渐变少。面临着数据信息时代,Web前端开发技术还需要不断优化和发展,以此来满足更多人的信息需求。本文主要就网站制作的Web前段开发技术进行了相关阐述,并且分析了它的优化方向。     

“违法和不良信息举报中心信息处理系统”启用

为进一步加强互联网管理，依法打击国内违法网站，中国互联网协会新闻信息服务工作委员会启用了“违法和不良信息举报中心信息处理系统”。有效处理公众对为淫秽色情等违法网站提供链接和广告服务的境内网站进行的举报。重庆市互联网协会根据相关工作精神，及时制定了《违法和不良信息举报处理流程（暂行）》。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.     

New insert layer structure OLEDs

An insert layer structure organic electroluminescent device（OLED） based on a new luminescent material （Zn（salen）） is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn（salen）/Liq/LiF/A1/CuPc/NPD/Zn（salen）/Liq/LiF/A1. Effective insert electrode layers comprising LiF（1nm）/Al（5 nm） are used as a single semitransparent mirror, and bilayer cathode LiF（1 nm）/A1（100 nm） is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.