嵌入式继电保护应用中文件完整性摘要管理模块的设计

继电保护行业已全面进入信息化时代,有许多应用都基于文件交互。由于传输异常、网络攻击等因素的存在,通常需要验证文件完整性摘要来保证应用程序的可靠性。一些系统在设计初期没有考虑该需求,由于文件操作接口设计一致性不足等原因,在升级改造过程中,开发人员通常会违背开闭原则,大量修改文件操作模块的代码,实现和测试成本很高。针对继电保护装置文件读写并发程度不高的特点,提出一种基于Linux的文件完整性摘要管理模块的设计方法,使用Linux系统的inotify机制和文件扩展属性,实现一个与现有软件充分解耦的摘要管理模块,使系统遵守开闭原则,该模块摘要算法可扩展,兼顾系统效率。

基于Internet的高效文件备份方法

针对当前文件备份领域中存在备份效率低、速度慢的问题,提出一种基于差异的远程文件备份方法。改进传统Rsync算法,实现差异文件的计算功能,从而减少网络数据传输,保证传输的高效性。实验结果表明,与传统文件备份方法相比,该方法能减少网络流量,提升备份与恢复的效率。

办公室文件传阅工作的过程管理研究

现代化办公室内部的文件传阅管理工作,对于提高办公效率,强化信息内容安全等方面,都具有十分重要的作用。本文首先对办公室文件传阅工作所需要遵循的基本管理原则进行了简要论述。随后,提出了办公室文件传阅工作的优化改进和系统管理方法,希望能为该领域关注者提供有益参考。

基于PowerDesigner生成数据库测试数据

在管理信息系统开发设计过程中,经常需要输入大量的测试数据来验证数据库的性能,本文介绍在了在管理信息系统开发过程中,如何利用计算机辅助设计工具PowerDesigner为数据库生成测试数据,对数据库的质量进行评估。

基于树状语料库的中文短语相似度计算

在诸如文件摘要、个性化搜索、学术诚信检测、常见问题自动解答、自动翻译等领域,短语相似度计算是核心算法。通过引入树状语料库,精确定义、计算词汇相似度,对基于抽取关键词序列的中文短语相似度算法做进一步改进。实验证明,该方法在提高中文短语相似度计算的准确率上达到了预期效果,更符合人的直观感觉。

网络论坛情报收集系统研究

本文提出一种基于网络论坛FAQ(Frequently Asked Questions)生成的情报收集系统的结构,并讨论了研发系统涉及的关键技术,在此基础上设计了系统性能评估实验。实验结果表明,研究的网络论坛情报收集系统能够有效地实现情报收集工作。

Summarization based on physical features and logical structure of multi documents

With the rapid development of the Internet, multi documents summarization is becoming a very hot research topic. In order to generate a summarization that can effectively characterize the original information from documents, this paper proposes a multi documents summarization approach based on the physical features and logical structure of the document set. This method firstly clusterssimilar sentences into several Logical Topics (LTs), and then orders these topics according to their physical features of multi documents. After that, sentences used for the summarization are extracted from these LTs, and finally the summarization is generated via certain sorting algorithms. Our experiments show that the information coverage rate of our method is 8.83% higher than those methods based solely on logical structures, and 14.31% higher than Top-N method.

Constructing a taxonomy to support multi-document summarization of dissertation abstracts

This paper reports part of a study to develop a method for automatic multi-document summarization. The current focus is on dissertations, in the field of sociology. The summarization method uses macro-level and micro-level discourse structure to identify important information that can be extracted from dissertation abstracts, and then uses a variable-based framework to integrate and organize extracted information across dissertation abstracts. This framework focuses more on research concepts and their research relationships found in sociology dissertation abstracts and has a hierarchical structure. A taxonomy is constructed to support the summarization process in two ways: (1) helping to identify important concepts and relations expressed in the text, and (2) providing a structure for linking similar concepts in different abstracts. This paper describes the variable-based framework and the summarization process, and then reports the construction of the taxonomy for supporting the summarization process. An example is provided to show how to use the constructed taxonomy to identify important concepts and integrate the concepts extracted from different abstracts.

Firefox中鲜为人知的秘密

Firefox浏览器以功能强大、使用简单、漏洞少。一直被大家推崇。使用方法不再赘述。在此告诉你一些鲜为人知的秘密。相信会对你起到一定的帮助。