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基于双向图与完全有向图融合的缺失数据插补方法创新研究
针对表格数据中特征间依赖关系未被充分挖掘的难题,华东师范大学团队提出BCGNN模型,通过结合双向图(Bipartite Graph)和完全有向图(Complete Directed Graph)结构,创新性地建模特征-特征高阶依赖关系。实验表明,该模型在多种缺失机制下平均降低15%的MAE(平均绝对 ...
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