畢業(yè)論文--論網(wǎng)絡(luò)信息過濾技術(shù)

論網(wǎng)絡(luò)信息過濾技術(shù)

摘要  互聯(lián)網(wǎng)的飛速發(fā)展在給人們的工作、學(xué)習(xí)、生活等諸多方面帶來巨大便利的同時(shí)也帶來諸如“信息超載”以及“不良信息”和垃圾信息的侵害等問題。信息過濾技術(shù)由此產(chǎn)生，并廣泛應(yīng)用到了網(wǎng)絡(luò)的各種信息處理過程中，對網(wǎng)絡(luò)信息實(shí)用化具有極大的推動作用。
本文對此項(xiàng)技術(shù)中的關(guān)鍵匹配算法結(jié)合實(shí)際系統(tǒng)進(jìn)行分析，以達(dá)到對此技術(shù)的詳細(xì)了解和理論探析。在研究關(guān)鍵匹配算法的原理時(shí)，通過各類算法的對比分析，結(jié)合實(shí)際中各算法的應(yīng)用，總結(jié)其優(yōu)缺點(diǎn)、技術(shù)關(guān)鍵及適用的方向。論文中采用的數(shù)據(jù)來自網(wǎng)絡(luò)上發(fā)布權(quán)威性統(tǒng)計(jì)數(shù)據(jù)，算法理論部分參考專業(yè)書刊，均具備權(quán)威性，可信性。
由研究得出，系統(tǒng)應(yīng)當(dāng)向更貼近用戶使用習(xí)慣的需要和更為嚴(yán)格的過濾機(jī)制的方向發(fā)展。智能化、可視化發(fā)展是今后發(fā)展的大趨勢。本文提出了多層次多類型的過濾機(jī)制。對規(guī)則模型的建立提出了新的方法，尚未進(jìn)行實(shí)現(xiàn)。

關(guān)鍵詞：信息過濾;匹配算法;用戶模型;系統(tǒng)結(jié)構(gòu)

Of Network Information Filtering
Student: Qi Min Fu
Instructor: Zhang Xiang
Abstract:The rapid development of the Internet to people in the work, Xue Xi, many aspects of life and also bring great convenience to bring such as "information overload" and "bad information" and spam against other issues. The resulting information filtering technology, and widely applied to various information processing network, the network information of great practical impetus.
In this paper, the technology of the key matching algorithm to analyze real system in order to achieve a detailed understanding of this technology, and Theory. Matching algorithm in the key principle of the time, through comparative analysis of various algorithms, combined with practical application of the algorithm, summing up the strengths and weaknesses, key technology and application directions. Paper used data from the network to publish authoritative statistics, the algorithm theory is partly based on professional books, all with authority, credibility.
Derived from the study, the system should be closer to users accustomed to the needs and more stringent filtering direction. Intelligence, visual development is the future trend of development. This paper presents a multi-level type of filtering mechanism. Model of the rules proposed new method, has not yet been achieved.
Keywords: information filtering; matching algorithm; user model; system structure

目錄
1 引言 1
1.1信息過濾系統(tǒng)的社會需求 1
1.2國內(nèi)外主要研究成果 1
1.3本文的主要研究方向和內(nèi)容 3
2信息過濾系統(tǒng)的分類 4
2.1信息過濾系統(tǒng)的基本結(jié)構(gòu) 4
2.1.1數(shù)據(jù)分析部件（A） 4
2.1.2過濾部件（B） 4
2.1.3用戶模型部件（C） 5
2.1.4學(xué)習(xí)部件（D） 5
2.2系統(tǒng)分類 5
2.2.1按信息的處理類型分類 6
2.2.2按過濾的操作位置分類 7
2.2.3按適用群體分類 7
2.2.4按建立用戶模型的方式分類 8
3信息過濾技術(shù)中的關(guān)鍵匹配技術(shù) 9
3.1布爾邏輯模型 9
3.2空間向量模型 10
3.3概率模型 13
3.4實(shí)際應(yīng)用中的其他模型 14
3.5多層級多類型模型的過濾機(jī)制 15
4基于VSM自適應(yīng)過濾系統(tǒng)的分析 16
5結(jié)論 20
致謝 21
參考文獻(xiàn) 22