Research on Frequency Table Storage Method Based on Least Square Method

被引：0
|
作者：
Lu, Jun [1 ]
Lin, Changwu [1 ]
Wang, Qiong [1 ]
Zhang, Haoyu [1 ]
Shi, Xinyi [1 ]
Chang, Cheng [1 ]
机构：
[1] Heilongjiang Univ, Coll Comp Sci & Technol, Harbin, Heilongjiang, Peoples R China
来源：
2019 IEEE 4TH INTERNATIONAL CONFERENCE ON CLOUD COMPUTING AND BIG DATA ANALYSIS (ICCCBDA) | 2019年
关键词：
universal combinatorial coding; least square method; frequency table; COMPRESSION;
D O I：
10.1109/icccbda.2019.8725751
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, the storage method of frequency table in universal combinatorial coding is researched. According to frequency characteristics of the data which the content is irregular, the trend of the total frequency value of each character is analyzed, and the information of frequency table of each segment data is predicted, then the storage rules of frequency table are determined. By calculating the frequency distribution information of each character, the least square method was used to calculate the frequency value. The optimal frequency value was first obtained by linear fitting of the average frequency value, and then the difference between the frequency value of each segment and the obtained optimal frequency value was calculated. Experimental results show that the method proposed in this paper can improve the efficiency of frequency table storage and save the storage space required by coding.
引用
收藏
页码：604 / 608
页数：5
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