Application of Active Learning for Churn Prediction with Class Imbalance

2018 ◽  
Author(s):  
Bing Zhu ◽  
Yin Pan ◽  
Zihan Gao
Keyword(s):  
Active Learning ◽  
Class Imbalance ◽  
Churn Prediction

A two-stage clustering-based cold-start method for active learning

2021 ◽  
Vol 25 (5) ◽  
pp. 1169-1185
Author(s):  
Deniu He ◽  
Hong Yu ◽  
Guoyin Wang ◽  
Jie Li
Keyword(s):  
Active Learning ◽  
Class Imbalance ◽  
Imbalanced Data ◽  
Cold Start ◽  
Classification Performance ◽  
The Novel ◽  
Two Stage ◽  
Minority Class ◽  
Novel Method ◽  
Multiple Clusters

The problem of initialization of active learning is considered in this paper. Especially, this paper studies the problem in an imbalanced data scenario, which is called as class-imbalance active learning cold-start. The novel method is two-stage clustering-based active learning cold-start (ALCS). In the first stage, to separate the instances of minority class from that of majority class, a multi-center clustering is constructed based on a new inter-cluster tightness measure, thus the data is grouped into multiple clusters. Then, in the second stage, the initial training instances are selected from each cluster based on an adaptive candidate representative instances determination mechanism and a clusters-cyclic instance query mechanism. The comprehensive experiments demonstrate the effectiveness of the proposed method from the aspects of class coverage, classification performance, and impact on active learning.

scholarly journals Online Active Learning Paired Ensemble for Concept Drift and Class Imbalance

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 73815-73828 ◽  
Author(s):  
Hang Zhang ◽  
Weike Liu ◽  
Jicheng Shan ◽  
Qingbao Liu
Keyword(s):  
Active Learning ◽  
Concept Drift ◽  
Class Imbalance

Class Imbalance and Active Learning

2013 ◽  
pp. 101-149 ◽  
Author(s):  
Josh Attenberg ◽  
Şeyda Ertekin
Keyword(s):  
Active Learning ◽  
Class Imbalance

Similarity-Based Active Learning for Image Classification Under Class Imbalance

2018 ◽  
Author(s):  
Chuanhai Zhang ◽  
Wallapak Tavanapong ◽  
Gavin Kijkul ◽  
Johnny Wong ◽  
Piet C. de Groen ◽  
...  
Keyword(s):  
Active Learning ◽  
Image Classification ◽  
Class Imbalance
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