Search Results for author: Zhihao Gu

Found 6 papers, 3 papers with code

Zeroth-Order Stochastic Mirror Descent Algorithms for Minimax Excess Risk Optimization

no code implementations22 Aug 2024 Zhihao Gu, Zi Xu

The minimax excess risk optimization (MERO) problem is a new variation of the traditional distributionally robust optimization (DRO) problem, which achieves uniformly low regret across all test distributions under suitable conditions.

Towards Artistic Image Aesthetics Assessment: a Large-scale Dataset and a New Method

1 code implementation CVPR 2023 Ran Yi, Haoyuan Tian, Zhihao Gu, Yu-Kun Lai, Paul L. Rosin

To fill the gap in the field of artistic image aesthetics assessment (AIAA), we first introduce a large-scale AIAA dataset: Boldbrush Artistic Image Dataset (BAID), which consists of 60, 337 artistic images covering various art forms, with more than 360, 000 votes from online users.

Spatiotemporal Inconsistency Learning for DeepFake Video Detection

no code implementations4 Sep 2021 Zhihao Gu, Yang Chen, Taiping Yao, Shouhong Ding, Jilin Li, Feiyue Huang, Lizhuang Ma

To address this issue, we term this task as a Spatial-Temporal Inconsistency Learning (STIL) process and instantiate it into a novel STIL block, which consists of a Spatial Inconsistency Module (SIM), a Temporal Inconsistency Module (TIM), and an Information Supplement Module (ISM).

Binary Classification Face Swapping

A Novel Retinex-Based Fractional-Order Variational Model for Image with Severely Low Light

no code implementations2 Nov 2020 Zhihao Gu, Fang Li, Faming Fang, and Guixu Zhang

The proposed method is more flexible in controlling the reg- ularization extent than the existing integer-order regularization methods.

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