Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (9): 2526-2534.doi: 10.12305/j.issn.1001-506X.2021.09.20

• Systems Engineering • Previous Articles     Next Articles

Label order optimization method of classifier chains based on co-occurrence analysis

Dedi LAI, Zhihui LUO, Yinglong MA*   

  1. School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
  • Received:2020-07-29 Online:2021-08-20 Published:2021-08-26
  • Contact: Yinglong MA

Abstract:

Aiming at the problem that the performance of classification chain model will be greatly affected by randomly generated label sequence, a two label sequence optimization strategies based on greedy algorithm and n-gram model is proposed to improve the performance of classification chain model through co-occurrence analysis technology. The strategy based on greedy algorithm generates the optimized classification chain labels sequence by calculating and sorting the co-occurrence rate between labels, while the strategy based on n-gram model generates the optimized classification chain labels sequence by maximizing the conditional probability between labels. Finally, experiments are carried out on multiple multi label benchmark datasets. The experimental results show that compared with the current popular classification chain models, the proposed two strategies are very competitive and can significantly improve the multi label classification effect.

Key words: multi-label classification, classification chain, co-occurrence analysis, n-gram, binary relevance

CLC Number: 

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