%0 Journal Article %T RETRACTED ARTICLE: Research on shale gas productivity prediction method based on optimization algorithm %A Zhang, Shaowei %A Zhang, Mengzi %A Wang, Zhen %A Yin, Rongwang %J Journal of Combinatorial Optimization %V 45 %N 5 %@ 1382-6905 %D 2023-07-01 %I Springer US %~ DeepDyve