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 ...
A signed bipartite graph G(U,V) is a bipartite graph in which each edge is assigned a positive or a negative sign. The signed degree of a vertex x in G(U, V) is the number of positive edges incident ...
We consider the bipartite matching model of customers and servers introduced by Caldentey, Kaplan and Weiss (2009). Customers and servers play symmetrical roles.There are finite sets C and S of ...