ALPHA掘金系列之十四:GBDT+NN机器学习可转债择券策略

国金证券股份有...
Jan 09, 2025

神经网络模型——以GRU 为代表的优化探索对于GRU 模型,我们发现利用日度K 线和转债的三种溢价率作为输入,可以取得最好的效果。为了提升模型的多头表现,我们尝试使用专注于多头的损失函数,但效果不佳,反而导致信息比率和多空指标下滑。为应对训练样本不足的问题,我们引入了数据增强策略,尤其在2022 年之前的数据上取得了显著成效。然而,在数据充足的2022 年之后,使用原始数据反而更能适应市场变化。...

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