Optimizing Cost-Sensitive SVM for Imbalanced Data :Connecting Cluster to Classification

no code implementations • 6 Feb 2017 • Qiuyan Yan, Shixiong Xia, Fanrong Meng

Class imbalance is one of the challenging problems for machine learning in many real-world applications, such as coal and gas burst accident monitoring: the burst premonition data is extreme smaller than the normal data, however, which is the highlight we truly focus on.

General Classification

Adapting ELM to Time Series Classification: A Novel Diversified Top-k Shapelets Extraction Method

no code implementations • 20 Jun 2016 • Qiuyan Yan, Qifa Sun, Xinming Yan

Then, a novel diversity graph based top-k shapelets extraction algorithm named as \textbf{DivTopkshapelets}\ is proposed to search top-k diversified shapelets.

General Classification Time Series +2