Abstract
Classification of gene expression data is the common denominator of various biomedical recognition tasks. However, obtaining class labels for large training samples may be difficult or even impossible in many cases. Therefore, semi-supervised classification techniques are required as semi-supervised classifiers take advantage of the unlabeled data. Furthermore, gene expression data is high dimensional which gives rise to the phenomena known under the umbrella of the curse of dimensionality, one of its recently explored aspects being the presence of hubs or hubness for short. Therefore, hubness-aware classifiers were developed recently, such as Naive Hubness Bayesian k-Nearest Neighbor (NHBNN). In this paper, we propose a semi-supervised extension of NHBNN and show in experiments on publicly available gene expression data that the proposed classifier outperforms all its examined competitors.
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Acknowledgments
This research was performed within the framework of the grant of the Hungarian Scientific Research Fund—OTKA 111710 PD. This paper was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences.
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Buza, K. (2016). Semi-supervised Naive Hubness Bayesian k-Nearest Neighbor for Gene Expression Data. In: Burduk, R., Jackowski, K., Kurzyński, M., Woźniak, M., Żołnierek, A. (eds) Proceedings of the 9th International Conference on Computer Recognition Systems CORES 2015. Advances in Intelligent Systems and Computing, vol 403. Springer, Cham. https://doi.org/10.1007/978-3-319-26227-7_10
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DOI: https://doi.org/10.1007/978-3-319-26227-7_10
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