Semi-Supervised Ensemble Using Confidence Based Selection Metric in Nnon-Stationary Data Streams
Subject Areas : electrical and computer engineering
shirin khezri
1
,
jafar tanha
2
,
ali ahmadi
3
,
arash Sharifi
4
1 -
2 -
3 -
4 - Science and Research Branch, Islamic Azad University, Tehran, Iran
Keywords: Semi-supervised classifiersensemble classifiersselection metric concept driftdata stream mining,
Abstract :
In this article, we propose a novel Semi-Supervised Ensemble classifier using Confidence Based Selection metric, named SSE-CBS. The proposed approach uses labeled and unlabeled data, which aims at reacting to different types of concept drift. SSE-CBS combines an accuracy-based weighting mechanism known from block-based ensembles with the incremental nature of Hoeffding Tree. The proposed algorithm is experimentally compared to the state-of-the-art stream methods, including supervised, semi-supervised, single classifiers, and block-based ensembles in different drift scenarios. Out of all the compared algorithms, SSE-CBS outperforms other semi-supervised ensemble approaches. Experimental results show that SSE-CBS can be considered suitable for scenarios, involving many types of drift in limited labeled data.
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