PICA framework for performance analysis of pattern recognition systems and its application in broadcast news segmentation

被引：0
|
作者：
Wang, Xiangdong [2 ]
Li, Meiyin [2 ]
Lin, Shouxun [1 ]
Qian, Yueliang [1 ]
Liu, Qun [1 ]
机构：
[1] Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China
[2] Grad Univ Chinese Acad Sci, Beijing 100085, Peoples R China
来源：
NEW TRENDS IN APPLIED ARTIFICIAL INTELLIGENCE, PROCEEDINGS | 2007年 / 4570卷
关键词：
performance analysis; PICA; PIFA; pattern recognition; speech recognition; broadcast news segmentation;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, the performance influencing class analysis (PICA) framework is proposed for performance analysis of pattern recognition systems dealing with data with great variety and diversity. Through the PICA procedure, the population of data is divided into subsets on which the system achieves different performances by means of statistical methods. On basis of the division, performance assessment and analysis are conducted to estimate the system performance on the whole data population. The PICA framework can predict true performance in real application and facilitate comparison of different systems without the same test set. The PICA framework is applied to the analysis of a broadcast news segmentation system. The procedure is presented and experimental results were given, which verified the effectiveness of PICA.
引用
收藏
页码：925 / +
页数：2
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