基于c語言的反垃圾系統(tǒng)的實(shí)現(xiàn)(已修改)
2025-07-05 01:35 本頁面
【正文】 基于 C 語言的反垃圾系統(tǒng)的實(shí)現(xiàn)摘 要隨著 Inter 的迅速普及，電子郵件以其快捷、方便、低成本的特點(diǎn)逐漸成為人們進(jìn)行信息交流的主要媒介之一，但是隨之而來的垃圾郵件也越來越泛濫。垃圾郵件占用了有限的存儲、計(jì)算和網(wǎng)絡(luò)資源，耗費(fèi)了用戶大量的處理時(shí)間，影響和干擾了用戶的正常工作、生活和學(xué)習(xí)。如何有效地治理垃圾郵件是全世界共同面臨的一道難題，也是互連網(wǎng)上目前有待解決的問題。本文首先介紹了電子郵件對人們?nèi)粘Ｉ畹闹匾?，然后概要介紹了反垃圾郵件技術(shù)的發(fā)展歷史。研究了三種過濾垃圾郵件的方法，分別是黑白名單技術(shù)、主題關(guān)鍵字過濾技術(shù)和貝葉斯策略，對這三種技術(shù)的設(shè)計(jì)方法做了說明，重點(diǎn)介紹了貝葉斯過濾技術(shù)的設(shè)計(jì)原理和實(shí)現(xiàn)步驟。最后總結(jié)了這幾種過濾技術(shù)的不足之處和設(shè)計(jì)中遇到的難點(diǎn)問題。關(guān)鍵詞：電子郵件；垃圾郵件；黑白名單；主題關(guān)鍵字；貝葉斯Design of antispam mail management system based on ASPAbstractWith the rapid development of inter, the technology of is used widely in people39。s daily life. However, the occurrence of more and more spam s is annoying to user, which causes the great waste of user39。s time, money as well as work bandwidth. And what39。s worst, it can be harmful to users. It affects and interferes with the user39。s normal work, life and studying. How to deal with spam s effectively, that is a mon difficult problem for all over the world. In the current Inter it is a problem for waiting for us to resolve. At first this paper introduces the 39。s importance for people39。s daily life. Then it introduces simply development history of the antispam technology and researches three of spam filtering methods, they are black and white list technology, subject keyword filtering technology and bayesian strategy. Then the designing methods of three kinds of technology are introduced. Focusing on the bayesian filtering technology, this paper introduces its designing principle and implementation39。s steps. Finally I sums up some shortings of several kinds of filtering technology and some difficult problems in designing.Key words: 。 spam 。 black and white list。 subject keyword。 bayesian目 錄論文總頁數(shù)：22 頁1 引言 .....................................................................11．1 課題背景 ...............................................................11．2 開發(fā)概述 ...............................................................1 電子郵件概述 ........................................................1 反垃圾概述 ..........................................................22 電子郵件的工作原理 .......................................................22．1 電子郵件的結(jié)構(gòu) .........................................................22．2 電子郵件的傳輸 .........................................................33 需求分析 .................................................................33．1 數(shù)據(jù)庫需求分析 .........................................................33．2 開發(fā)環(huán)境需求 ...........................................................54 系統(tǒng)功能和技術(shù)描述 .......................................................64．1 系統(tǒng)功能模塊設(shè)計(jì) .......................................................64．2 基本功能 ...............................................................64．3 黑白名單技術(shù) ...........................................................74．4 關(guān)鍵字過濾技術(shù) .........................................................74．5 貝葉斯過濾技術(shù) .........................................................8 貝葉斯過濾算法的基本步驟 ............................................8 貝葉斯過濾算法舉例 ..................................................9 貝葉斯過濾模塊劃分 .................................................105 系統(tǒng)工作流程和詳細(xì)設(shè)計(jì) ..................................................115．1 系統(tǒng)工作流程圖 .......................................
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