title: Identification of chinese herbal medicines from zingiberaceae family using feature extraction and cascade classifier based on response signals from e-nose.
abstract: Identification of Chinese herbal medicines (CHMs) by human experience is often inaccurate because individual ability and external factors may influence the outcome. However, it might be promising to employ an electronic nose (E-nose) to identify them. This paper presents a rapid and reliable method for identification of ten different species of CHMs from Zingiberaceae family based on their response signals from E-nose. Ten Zingiberaceae CHMs were measured and their maximum response values were analyzed by principal component analysis (PCA). Result shows that E Zhu (Curcuma phaeocaulis Val.) and Yi Zhi (Alpinia oxyphylla Miq.) could not be distinguished completely by PCA. Two solutions were proposed: (i) using BestFirst+CfsSubsetEval (BC) method to extract more discriminative features to select sensors with higher contribution rate and remove the redundant signals; (ii) employing a novel cascade classifier with two stages to enhance the distinguishing-positive rate (DPR). Based on these strategies, six features were extracted and used in different stages of the cascade classifier with higher DPRs.
authors.affiliation: School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wang Jing Zhong Huan Nan Lu, Chao Yang District, Beijing 100102, China.
authors.forename: Lian
authors.initials: L
authors.lastname: Peng
authors.affiliation: Library, Beijing University of Chinese Medicine, No. 11 Bei San Huan Dong Lu, Chao Yang District, Beijing 100029, China.
authors.forename: Hui-Qin
authors.initials: HQ
authors.lastname: Zou
authors.affiliation: Institute of Pharmaceutical Science, University of Graz, Graz 8010, Austria.
authors.forename: Rudolf
authors.initials: R
authors.lastname: Bauer
authors.affiliation: School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wang Jing Zhong Huan Nan Lu, Chao Yang District, Beijing 100102, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wang Jing Zhong Huan Nan Lu, Chao Yang District, Beijing 100102, China.
authors.forename: Ou
authors.initials: O
authors.lastname: Tao
authors.affiliation: School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wang Jing Zhong Huan Nan Lu, Chao Yang District, Beijing 100102, China.
authors.forename: Su-Rong
authors.initials: SR
authors.lastname: Yan
authors.affiliation: Library, Beijing University of Chinese Medicine, No. 11 Bei San Huan Dong Lu, Chao Yang District, Beijing 100029, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Han
authors.affiliation: School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wang Jing Zhong Huan Nan Lu, Chao Yang District, Beijing 100102, China.
authors.forename: Jia-Hui
authors.initials: JH
authors.lastname: Li
authors.affiliation: School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wang Jing Zhong Huan Nan Lu, Chao Yang District, Beijing 100102, China.
authors.forename: Zhi-Yu
authors.initials: ZY
authors.lastname: Ren
authors.affiliation: School of Chinese Materia Medica, Beijing University of Chinese Medicine, No. 6 Wang Jing Zhong Huan Nan Lu, Chao Yang District, Beijing 100102, China.
authors.forename: Yong-Hong
authors.initials: YH
authors.lastname: Yan
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