Search Results for author: Lei Qin

Found 4 papers, 0 papers with code

Label-free detection of exosomes from different cellular sources based on surface-enhanced Raman spectroscopy combined with machine learning models

no code implementations25 Jan 2024 Yang Li, Xiaoming Lyu, Kuo Zhan, Haoyu Ji, Lei Qin, JianAn Huang

In comparison to other machine learning analysis, our method used small amount of SERS data to allow a simple and rapid exosome detection, which enables a timely subsequent study of cell-cell interactions, communication mechanisms, and disease mechanisms in life sciences.

Doubly Robust Uniform Confidence Bands for Group-Time Conditional Average Treatment Effects in Difference-in-Differences

no code implementations3 May 2023 Shunsuke Imai, Lei Qin, Takahide Yanagi

We consider a panel data analysis to examine the heterogeneity in treatment effects with respect to a pre-treatment covariate of interest in the staggered difference-in-differences setting of Callaway and Sant'Anna (2021).

valid

A Causal And-Or Graph Model for Visibility Fluent Reasoning in Tracking Interacting Objects

no code implementations CVPR 2018 Yuanlu Xu, Lei Qin, Xiaobai Liu, Jianwen Xie, Song-Chun Zhu

We introduce a Causal And-Or Graph (C-AOG) to represent the causal-effect relations between an object's visibility fluent and its activities, and develop a probabilistic graph model to jointly reason the visibility fluent change (e. g., from visible to invisible) and track humans in videos.

Visual Tracking

Hedged Deep Tracking

no code implementations CVPR 2016 Yuankai Qi, Shengping Zhang, Lei Qin, Hongxun Yao, Qingming Huang, Jongwoo Lim, Ming-Hsuan Yang

In recent years, several methods have been developed to utilize hierarchical features learned from a deep convolutional neural network (CNN) for visual tracking.

Visual Tracking

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