A New Method on similarity of fingerprints and its critical value determination
The calculation about similarity of fingerprints and its critical value determination is an important approach to control the quality of traditional Chinese medicines (TCM) in the related study. There are many traditional calculation method to compute similarity, such as cosine of the angle, pearson correlation coefficient, euclidean distance, and so on. However, it is found that these traditional methods are not sensitive enough, so that they can not distinguish the difference among many TCM samples. And the critical value is always given subjective, so it is lack of objectivity. Basing on two previous problems and taking advantage of cosine of the angle and the idea of support vector machine (SVM), we propose a mew method: Linear measure, which is used to measure the similarity between two fingerprints. Then we give a way to the determination of critical value utilizing resampling method and empirical distribution function. At last two examples show linear measure has much more merits than traditional calculation method, and the final example proves the feasibility of the way to the critical value determination.
Fingerprint Similarity Cosine of the angle Linear measure Critical value
Xiaoqin Zhang Yunsheng Song
School of Mathematical Sciences Shanxi University Taiyuan, Shanxi 030006, P.R.C School of Mathematical Sciences Shanxi University Taiyuan, Shanxi 030006, P.R.C.
国际会议
上海
英文
2050-2054
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）