no code implementations • 27 Jan 2023 • Zhifan Gao, Yifeng Guo, Jiajing Zhang, Tieyong Zeng, Guang Yang
HP-ALF can perceive the image information in the hierarchical mechanism: image-level perception and patch-level perception.
no code implementations • 15 Dec 2020 • Yifeng Guo, Yu Su, Zebin Yang, Aijun Zhang
In this paper, we propose the explainable recommendation systems based on a generalized additive model with manifest and latent interactions (GAMMLI).
no code implementations • 23 Jun 2020 • Yifeng Guo, Chengjia Wang, Heye Zhang, Guang Yang
The performance of traditional compressive sensing-based MRI (CS-MRI) reconstruction is affected by its slow iterative procedure and noise-induced artefacts.
no code implementations • 5 Jun 2018 • XingYu Fu, JinHong Du, Yifeng Guo, Mingwen Liu, Tao Dong, XiuWen Duan
The effectiveness of the stock selection strategy is validated in Chinese stock market in both statistical and practical aspects, showing that: 1) Stacking outperforms other models reaching an AUC score of 0. 972; 2) Genetic Algorithm picks a subset of 114 features and the prediction performances of all models remain almost unchanged after the selection procedure, which suggests some features are indeed redundant; 3) LR and DNN are radical models; RF is risk-neutral model; Stacking is somewhere between DNN and RF.
no code implementations • 1 May 2018 • Yifeng Guo, Xingyu Fu, Yuyan Shi, Mingwen Liu
We proposed a new Portfolio Management method termed as Robust Log-Optimal Strategy (RLOS), which ameliorates the General Log-Optimal Strategy (GLOS) by approximating the traditional objective function with quadratic Taylor expansion.