Learning very fast decision tree from uncertain data streams with positive and unlabeled samples

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Liang, Chunquan, Zhang, Yanchun, Shi, Peng and Hu, Zhengguo (2012) Learning very fast decision tree from uncertain data streams with positive and unlabeled samples. Information Sciences, 213. pp. 50-67. ISSN 0020-0255 (print), 1872-6291 (online)

Abstract

Most data stream classification algorithms need to supply input with a large amount of precisely labeled data. However, in many data stream applications, streaming data contains inherent uncertainty, and labeled samples are difficult to be collected, while abundant data are unlabeled. In this paper, we focus on classifying uncertain data streams with only posi- tive and unlabeled samples available. Based on concept-adapting very fast decision tree (CVFDT) algorithm, we propose an algorithm namely puuCVFDT (CVFDT for positive and unlabeled uncertain data). Experimental results on both synthetic and real-life datasets demonstrate the strong ability and efficiency of puuCVFDT to handle concept drift with uncertainty under positive and unlabeled learning scenario. Even when 90% of the samples in the stream are unlabeled, the classification performance of the proposed algorithm is still compared to that of CVFDT, which is learned from fully labeled data without uncertainty.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/22129
DOI https://doi.org/10.1016/j.ins.2012.05.023
Official URL http://www.sciencedirect.com/science/article/pii/S...
Subjects Current > FOR Classification > 0804 Data Format
Current > FOR Classification > 0807 Library and Information Studies
Current > Division/Research > College of Science and Engineering
Keywords ResPubID25830, positive unlabeled learning, uncertain attributes, algorithms
Citations in Scopus 34 - View on Scopus
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