基于Web的客户端电子邮件系统的实现

该文阐述了在Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ上发送和接收电子邮件的原理及由Ｍｉｃｒｏｓｏｆｔ Ｅｘｃｈａｎｇｅ Ｓｅｒｖｅｒ组成的电子邮件系统传输电子邮件的过程,提出了一种应用ＡＳＰ技术通过ＶＢＳｃｒｉｐｔ语言调用ＩＩＳ提供的ＣＤＯＮＴＳ类库实现在Ｗｅｂ上发送和接收电子邮件的方法。     

语音邮件传真情──Pure Voice使用小技巧

当你想和远方的朋友、家人联系时，如果让你选择一种方法，是选择打长途电话还是写信？打长途电话费钱，写信路途时间太长，不及时，而且不能表达你的心声，于是就会想到电子邮件。电子邮件，作为正在迅猛发展的Internet的重要应用，正在改变着人们的生活方式，它既有着长途电话的及时，又有着普通信函的方便利费用低廉，因此，电子邮件在人们的生活中发挥着越来越重要的作用。但是，普通的电子邮件又没有电话所具有的功能──语音。俗话说，听话听音，在电话中，人们可以通过语言，充分的表达人们的感情。语言是最贴近生活的交流工具，也…     

基于XML与Oracle9i的邮件数据库的实现

XML是一种半结构化的标记语言,它提供了一种平台无关的交换机制,便于对数据信息进行智能化处理.电子邮件是高效、廉价的信息传送媒体,将电子邮件XML化,再保存在Oracle中,可以发挥Oracle强大的备份和查询功能.     

基于数字签名的安全电子邮件系统的研究

本文以电子邮件系统为研究背景,在数字签名技术的基础上,提出了一种基于数字签名技术的安全电子邮件系统的设计方案,并给出了发送电子邮件模块和接收电子邮件模块的详细的设计流程以及基于Java语言的具体的代码实现。     

如何建立Web方式的pop3电子邮件系统

电子邮件是一种通过网络传递信息的现代通信手段,也是Intranet/Internet上应用最为广泛的服务之一。基于TCP/IP协议的POP3电子邮件系统是Intranet/Internet上最为流行、最为成功的电子邮件解决方案。WEB方式的POP3电子邮件系统(如:Hotmail)是一种允许用户通过浏览器采用浏览WEB页面方式来享用电子邮件服务的WEB应用,是目前最受欢迎电子邮件工作方式。下面将围绕POP3电子     

全球首创语言学习服务eFlashcards

ＨｕｎｇｒｙＦｏｒＷｏｒｄｓ．ｃｏｍ宣布推出全球首创数码闪卡电子邮件服务 ,应用互联网技术教授外语。Ｈｕｎｇｒｙ ＦｏｒＷｏｒｄｓ．ｃｏｍ采用“易学卡”（ｅＦｌａｓｈｃａｒｄ）的语言学习方式为热爱学习语言的人士提供免费、简易及省时的个人化学习环境。易学卡服务每天用电子邮件为会员送上一个新的词汇 ,附有标准发音、常用例句 ,并可以在用户的母语和所学语言之间交错显示。采用闪卡学习是一种有效的学习方式 ,可以加强记忆 ,易学卡概念就是在此基础上推出的。易学卡服务提供崭新的“瞬间”学习周期 ,让会员逐步增加词汇 ,并…     

基于神经网络的电子邮件分类与过滤

现在电子邮件的应用非常广泛,已经成为人们生活中一种重要的通讯手段,但各种各样的垃圾邮件也是令我们十分困扰的问题,给出了一种电子邮件的分类过滤方法。电子邮件作为一种半结构化的文档,电子邮件信息包含了固定的语法部分和一定长度的可变文本部分,同时处理这两部分以得到更高的准确度。首先对邮件进行文本处理,得到特征向量;然后使用基于神经网络的方法对邮件进行分类过滤得到邮件分类器;最后通过实验验证分类器的有效性。     

跟我学编程之电子邮件收发程序

C Builder和Delphl是两种非常棒的面向对象的可视化编程工具。它们的基础语言分别是C 和Pascal,这次我就用这两种语言来编写一个完全相同的电子邮件收发程序。     

电子邮件真实性技术分析

电子邮件作为现代通信的一种重要方式,被越来越多的应用到电子商务及日常生活中。电子邮件的真伪的分析,也成为电子数据司法鉴定领域一项重要的课题。文章针对目前较为常见的电子邮件的篡改方法,通过对电子邮件客户端收发的邮件进行结构分析、邮件头分析、邮件内容分析、邮件附件分析、相关邮件分析及操作行为分析等相关内容的综合分析,对电子邮件的真实性进行分析提出了可行性的方法。     

安全电子邮件系统的设计与实现

随着电子邮件越来越广泛的应用,电子邮件的安全性问题也越显突出,本文提出了一种提供数据加密和数字签名的安全电子邮件系统,并详细讨论了其设计与实现技术.     

Java作业调度应用实例分析

Java语言凭借跨平台、面相对象、功能强大等优点,已经成为现在最流行的语言之一。在J2EE web项目中,有一种常见的应用被称作作业调度的应用。文中对作业调度的应用背景进行了归纳总结,并结合实例对作业调度的实现步骤进行了介绍,有助于读者从整体上快速掌握作业调度的概念和实现。同时只要对实例进行简单的修改就可以进行实际应用,具有较强的适用价值。     

Java作业调度应用实例分析

Java语言凭借跨平台、面相对象、功能强大等优点,已经成为现在最流行的语言之一.在J2EE web项目中,有一种常见的应用被称作作业调度的应用.文中对作业调度的应用背景进行了归纳总结,并结合实例对作业调度的实现步骤进行了介绍,有助于读者从整体上快速掌握作业调度的概念和实现.同时只要对实例进行简单的修改就可以进行实际应用,具有较强的适用价值.     

A method to build a super small but practically accurate language model for handheld devices

In this paper,an important question,whether a small language model can be practically accurate enough,is raised.Afterwards,the purpose of a language model,the problems that a language model faces,and the factors that affect the performance of a language model,are analyzed. Finally,a novel method for language model compression is proposed,which makes the large language model usable for applications in handheld devices,such as mobiles,smart phones,personal digital assistants (PDAs),and handheld personal computers (HPCs).In the proposed language model compression method,three aspects are included.First,the language model parameters are analyzed and a criterion based on the importance measure of n-grams is used to determine which n-grams should be kept and which removed.Second,a piecewise linear warping method is proposed to be used to compress the uni-gram count values in the full languagemodel.And third, a rank-based quantization method is adopted to quantize the bi-gram probability values.Experiments show that by using this compression method the language model can be reduced dramatically to only about 1M bytes while the performance almost does not decrease.This provides good evidence that a language model compressed by means of a well-designed compression technique is practically accurate enough,and it makes the language model usable in handheld devices.     

TQuery: a context-sensitive temporal query language.

Users of electronic medical databases request pertinent information by recasting their clinical questions into a formal database query language. Because the query language is the user's only access to the data, the query language must be powerful enough to enable users to express their data requirements. However, a competing need is for the query language to be restrictive enough so that queries can have unambiguous semantics and the query processor can generate correct answers. We describe a query language, called TQuery , that was designed specifically to formulate database queries that are dependent on temporal and contextual relationships. TQuery specifications express contextual constraints without the need to explicitly reference calendar dates. TQuery is the database query language used to retrieve patient data from an object-oriented electronic patient medical-record system called the temporal network (TNET). TNET and TQuery were developed to support the real-time temporal reasoning and representation needs of a LISP workstation-based medical expert system.     

基于知网的文本推理

文本推理在自然语言处理的应用中占有极为重要的位置,本文介绍了基于知网的一种推理方法,该方法以语义网络的形式表示知网中的知识,利用“标记传递”实现推理。其特点是引入构造-融合模型的思想,动态生成知识结构,有引导地在文本词汇间建立推理路径。利用16种推理类的实例对其进行测试,结果表明在有足够上下文的条件下,该方法能够得出较为理想的推理,并且代价不高。     

Model Checking Downward Simulations

This paper shows how downward simulation can be checked using existing temporal logic model checkers. In particular, we show how the branching time temporal logic CTL can be used to encode the standard downward simulation conditions. We do this for both a blocking, or guarded, interpretation of operations (often used when specifying reactive systems) as well as the more common non-blocking interpretation of operations used in many state-based specification languages (for modelling sequential systems). The approach is general enough to use with any state-based specification language, and any CTL model checker in which the language can be encoded.     

高性能电子邮件过滤系统的设计与实现

该系统采用基于全信息的自然语言理解方法论，对邮件从语法(关键词过滤)、语义(主题过滤)、语用(倾向过滤)三个层次上进行过滤，从而尽量避免对正常邮件的误判和对非法邮件的漏判。     

基于邮件队列的高速邮件系统设计

提出了一种基于邮件队列的邮件投递过滤方式。根据相应的可动态扩展的策略建立邮件队列,通过对特征邮件队列的限制实现对垃圾邮件的限制,使合法邮件得到及时处理,极大地提高了系统的性能。     

Architecture-independent parallel computation

The major parallel architecture classes are considered: single-instruction multiple-data (SIMD) computers, tightly coupled multiple-instruction multiple-data (MIMD) computers, hypercuboid computers and constant-valence MIMD computers. An argument that the PRAM model is universal over tightly coupled and hypercube systems, but not over constant-valence-topology, loosely coupled-system is reviewed, showing precisely how the PRAM model is too powerful to permit broad universality. Ways in which a model of computation can be restricted to become universal over less powerful architectures are discussed. The Bird-Meertens formalism (R.S. Bird, 1989), is introduced and it is shown how it is used to express computations in a compact way. It is also shown that the Bird-Meertens formalism is universal over all four architecture classes and that nontrivial restrictions of functional programming languages exist that can be efficiently executed on disparate architectures. The use of the Bird-Meertens formalism as the basis for a programming language is discussed, and it is shown that it is expressive enough to be used for general programming. Other models and programming languages with architecture-independent properties are reviewed