@ARTICLE{8337008, author={P. {Zhao} and Y. {Zhang} and M. {Wu} and S. C. H. {Hoi} and M. {Tan} and J. {Huang}}, journal={IEEE Transactions on Knowledge and Data Engineering}, title={Adaptive Cost-Sensitive Online Classification}, year={2019}, volume={31}, number={2}, pages={214-228}, keywords={learning (artificial intelligence);pattern classification;adaptive cost-sensitive online classification;sketching technique;data stream;online anomaly detection tasks;adaptive regularization;second-order information;first-order information;weighted misclassification cost;Predictive models;Task analysis;Prediction algorithms;Optimization;Sensitivity;Indexes;Cost-sensitive classification;online learning;adaptive regularization;sketching learning}, doi={10.1109/TKDE.2018.2826011}, ISSN={}, month={Feb},}