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金融产品深度:资金流向相似性图谱与图神经网络-20230715-中信建投

本报告构建6种资金流向相似性图谱,并用于XGB 训练的特征工程环节、图神经网络的训练,为存量因子、模型和策略带来模型IC、TOP 组超额、多空收益、指数增强组合的收益增量。将XGB 和GAT叠加多图谱后进行集成,进一步带来额外增量。 资金流向相似性关系图谱 股票之间在同一时段内共同出现资金净流入或流出的频率,反应了驱动股价变化的相似资金行为的影响因素,本报告以此思路构建了6种资金流向相似性图谱。

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