00401nas a2200157   4500000000100000000000100001008004100002260001600043100001400059700001300073700001600086700001600102700001500118700001600133245009400149       2022                            d  c3 July 20221 aLiao Chen1 aNing Jia1 aHongke Zhao1 aYanzhe Kang1 aJiang Deng1 aShoufeng Ma00aRefined analysis and a hierarchical multi-task learning approach for loan fraud detection