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      "content": "通过预测投资组合中，各个投资标的的收益率排名（或相对大小）用于指导投资组合持仓是一种很有效的[Alpha策略](https://zhuanlan.zhihu.com/p/398127117)，竞赛采用九坤量化数据（匿名化），通过对过去时间进行建模，预测未来28日，投资组合中各项投资标的收益率相对大小，评价指标采用Pearson correlation coefficient。\n\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-user-content/o/inbox%2F1238483%2Fb7519cd3587fa39cd067a53a277388fc%2Flogo.jpg?generation=1659605476115299&alt=media)\n",
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