Research And Implementation Of Improved TreeMap Algorithm Based On Data Visualization System

In today's society,the level of information is constantly improving,and the data is also expanding,in order to improve the efficiency and accuracy of data processing,the data visualization technology that based on TreeMap algorithm are widely used.But the presence of classical performance TreeMap algorithm have the problems about overall performance,which greatly reducing the use of data visualization.In the paper,based on the classic TreeMap algorithm,an improved TreeMap algorithm has been put forward and applicated in data visualization system,which improved data visualization overall performance,in addition,the system security has also done a detailed design and implementation to improve the safety performance of the system.Firstly,the basic theory of visualization technology is discussed in this paper,the characteristics of different types of data visualization techniques are also summarized.The basic theory of tree-map layout algorithm,the classic tree-map layout algorithm,and the various features of each algorithm have been analyzed.And the paper also show the basics of Cross Site Scripting,the characteristics and the basic defensive approach each attack.Secondly,the paper focus on the improved tree-map layout algorithm of data visualization systems.And the algorithm ideological which is the core of the system,is an improved tree layout algorithm named Squarified-PartialOrdering algorithm,the main idea of this algorithm and the system security are analyzed too.The structure of this system has been designed,the code of the key part of the realization and result of each module have been also shown in the paper.Finally,according to the system functional requirements,the various aspects of performance of the system have been tested,and the test result are analyzed and summarized.In the visualization function,the system can visualize large amounts of data,and have a certain security and defense capabilities.In visual terms of performance,the system after the improved TreeMap algorithm has improved the classic problems caused by the defect,not only has a high aspect ratio of the visual performance,but also ensure the continuity of data,and avoid the final piece problems arise narrow area.The system has a higher overall performance,improves the efficiency and correctly of user access to information.