基于改進的TreeMap算法的數據可視化系統的研究與實現
[Abstract]:In order to improve the efficiency and correctness of data processing, the technology of data visualization based on TreeMap algorithm is widely used. However, the classical TreeMap algorithm has some problems, such as low synthesis performance, which leads to the inefficiency of data visualization based on this algorithm. Based on the advantages of the classical TreeMap algorithm, this paper proposes an improved TreeMap algorithm for the problem of poor synthesis performance of the classical TreeMap algorithm, and applies it to the data visualization system to improve the comprehensive performance of the data visualization processing. In addition, the visual system is vulnerable to cross-domain script attacks, and the system is defended in detail. First of all, this paper discusses the basic theory of visualization technology, summarizes the characteristics of different types of visualization technology, expounds the basic theory of TreeMap algorithm, enumerates the classical TreeMap algorithm. At the same time, the basic knowledge of cross-domain script attacks is discussed, and the characteristics and basic defense methods of different types of cross-domain scripting attacks are expounded. Secondly, the research and design of data visualization system based on improved TreeMap algorithm are carried out. This paper puts forward the core algorithm of the system, a kind of improved TreeMap algorithm partial reverse layout algorithm (Squarified-PartialOrdering algorithm), analyzes the main thought strategy of the algorithm in depth, and studies the concrete application of the algorithm in the system. The security vulnerabilities of the system are analyzed, and the defense design work is done in detail. At the same time, the other functional modules of the system are deeply studied, and the design work is refined to each sub-module. On this basis, the implementation of each functional module of the system has been done in detail, corresponding to the previous module design work, the implementation work is also refined to each sub-module of the system, and the key part of the implementation code is given. And each functional module after the implementation of the effect diagram. Finally, according to the functional requirements of the system, a reasonable test environment is set up, the main functions and visual performance of the system are tested in detail, and the test results are analyzed and summarized. In terms of system functions, the system can visualize a large amount of data and has a certain cross-domain script attack defense function. In the aspect of visualization performance, after adopting the improved TreeMap algorithm, the system improves the problems caused by the defects of some classical TreeMap algorithms, obtains a higher performance of the visual aspect ratio, and at the same time ensures the continuity of the data. It also avoids the narrow problem in the last area. As a whole, the system not only has perfect visualization function and certain security defense, but also has high visual comprehensive performance, which improves the efficiency and correctness of users' obtaining information to a certain extent.
【學位授予單位】:北京郵電大學
【學位級別】:碩士
【學位授予年份】:2016
【分類號】:TP309
【參考文獻】
相關期刊論文 前10條
1 陳誼;胡海云;李志龍;;樹圖布局算法的比較與優(yōu)化研究[J];計算機輔助設計與圖形學學報;2013年11期
2 陳誼;賈艷杰;孫悅紅;;分塊排序的正方化樹圖布局算法[J];計算機輔助設計與圖形學學報;2013年05期
3 張昕;袁曉如;;樹圖可視化[J];計算機輔助設計與圖形學學報;2012年09期
4 肖衛(wèi)東;孫揚;趙翔;周城;封孝生;;層次信息可視化技術研究綜述[J];小型微型計算機系統;2011年01期
5 張敏;;基于Treemap的大規(guī)模商務層次數據可視化研究[J];科技傳播;2010年17期
6 陳建青;張玉清;;Web跨站腳本漏洞檢測工具的設計與實現[J];計算機工程;2010年06期
7 谷建濤;周哲;佟玉霞;;基于樹圖雙向正方化算法的實驗研究[J];計算機應用與軟件;2009年09期
8 陳嘉迅;;論跨站腳本(XSS)攻擊的危害、成因及防范[J];網絡與信息;2008年09期
9 景民昌;孫潔麗;;大型層次信息可視化方法研究[J];情報科學;2008年04期
10 劉波;徐學文;;可視化分類方法對比研究[J];情報雜志;2008年02期
相關重要報紙文章 前1條
1 奇云;;“虛擬中國人”向我們走來![N];中國審計報;2002年
相關碩士學位論文 前8條
1 許文鵬;數據可視化系統架構的設計與實現[D];北京交通大學;2015年
2 李希娟;大數據時代下的數據可視化研究[D];河北大學;2014年
3 曾悠;大數據時代背景下的數據可視化概念研究[D];浙江大學;2014年
4 章明;Web應用程序客戶端腳本安全技術研究[D];上海交通大學;2012年
5 張哲;Web應用中安全漏洞檢測技術的研究[D];西安電子科技大學;2011年
6 雷超;企業(yè)辦公及科研管理可視化系統的研究與開發(fā)[D];西安電子科技大學;2011年
7 黃文鋒;DOM型XSS攻擊防范模型研究[D];廣州大學;2010年
8 沈壽忠;基于網絡爬蟲的SQL注入與XSS漏洞挖掘[D];西安電子科技大學;2009年
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