Search Results for author: Zhenyu Zhao

Found 12 papers, 3 papers with code

Opportunities and challenges in the application of large artificial intelligence models in radiology

no code implementations24 Mar 2024 Liangrui Pan, Zhenyu Zhao, Ying Lu, Kewei Tang, Liyong Fu, Qingchun Liang, Shaoliang Peng

Influenced by ChatGPT, artificial intelligence (AI) large models have witnessed a global upsurge in large model research and development.

Video Generation

Integrating Active Learning in Causal Inference with Interference: A Novel Approach in Online Experiments

no code implementations20 Feb 2024 Hongtao Zhu, Sizhe Zhang, Yang Su, Zhenyu Zhao, Nan Chen

In the domain of causal inference research, the prevalent potential outcomes framework, notably the Rubin Causal Model (RCM), often overlooks individual interference and assumes independent treatment effects.

Active Learning Causal Inference

HiDiffusion: Unlocking High-Resolution Creativity and Efficiency in Low-Resolution Trained Diffusion Models

no code implementations29 Nov 2023 Shen Zhang, Zhaowei Chen, Zhenyu Zhao, Zhenyuan Chen, Yao Tang, Yuhao Chen, Wengang Cao, Jiajun Liang

We introduce HiDiffusion, a tuning-free framework comprised of Resolution-Aware U-Net (RAU-Net) and Modified Shifted Window Multi-head Self-Attention (MSW-MSA) to enable pretrained large text-to-image diffusion models to efficiently generate high-resolution images (e. g. 1024$\times$1024) that surpass the training image resolution.

Attribute Image Generation

Measurement of In-Circuit Common-Mode Impedance at the AC Input of a Motor Drive System

no code implementations6 Oct 2021 Zhenyu Zhao, Fei Fan, Arjuna Weerasinghe, Pengfei Tu, Kye Yak See

The in-circuit common-mode (CM) impedance at the AC input of a motor drive system (MDS) provides valuable inputs for evaluating and estimating the CM electromagnetic interference (EMI) noise generated by the switching of power semiconductor devices in the MDS.

Impact of Motor Stator Winding Faults on Common-Mode Current

no code implementations6 Oct 2021 Fei Fan, Zhenyu Zhao, Pengfei Tu, Huamin Jie, Kye Yak See

This paper investigates the influence of different motor stator failures on the common-mode (CM) current.

In-Circuit Differential-Mode Impedance Extraction at the AC Input of a Motor Drive System

no code implementations1 Oct 2021 Arjuna Weerasinghe, Zhenyu Zhao, Fei Fan, Pengfei Tu, Kye Yak See

The in-circuit differential-mode (DM) impedance at the AC input of a motor drive system (MDS) serves as a key parameter to evaluate and estimate the DM electromagnetic interference (EMI) noise caused by the switching of power semiconductor devices in the MDS.

Robust Machine Reading Comprehension by Learning Soft labels

no code implementations COLING 2020 Zhenyu Zhao, Shuangzhi Wu, Muyun Yang, Kehai Chen, Tiejun Zhao

Neural models have achieved great success on the task of machine reading comprehension (MRC), which are typically trained on hard labels.

Machine Reading Comprehension

CausalML: Python Package for Causal Machine Learning

2 code implementations25 Feb 2020 Huigang Chen, Totte Harinen, Jeong-Yoon Lee, Mike Yung, Zhenyu Zhao

CausalML is a Python implementation of algorithms related to causal inference and machine learning.

BIG-bench Machine Learning Causal Inference

Maximum Relevance and Minimum Redundancy Feature Selection Methods for a Marketing Machine Learning Platform

2 code implementations15 Aug 2019 Zhenyu Zhao, Radhika Anand, Mallory Wang

This paper describes the approach to extend, evaluate, and implement the mRMR feature selection methods for classification problem in a marketing machine learning platform at Uber that automates creation and deployment of targeting and personalization models at scale.

BIG-bench Machine Learning feature selection +1

Uplift Modeling for Multiple Treatments with Cost Optimization

no code implementations14 Aug 2019 Zhenyu Zhao, Totte Harinen

An important but so far neglected use case for uplift modeling is an experiment with multiple treatment groups that have different costs, such as for example when different communication channels and promotion types are tested simultaneously.

Marketing

Relaxed Majorization-Minimization for Non-smooth and Non-convex Optimization

no code implementations25 Nov 2015 Chen Xu, Zhouchen Lin, Zhenyu Zhao, Hongbin Zha

We propose a new majorization-minimization (MM) method for non-smooth and non-convex programs, which is general enough to include the existing MM methods.

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