Search Results for author: Yifan Shen

Found 11 papers, 3 papers with code

Symmetry Adapted Residual Neural Network Diabatization: Conical Intersections in Aniline Photodissociation

no code implementations3 Nov 2024 Yifan Shen, David Yarkony

We present a symmetry adapted residual neural network (SAResNet) diabatization method to construct quasi-diabatic Hamiltonians that accurately represent ab initio adiabatic energies, energy gradients, and nonadiabatic couplings for moderate sized systems.

Continual Learning of Nonlinear Independent Representations

no code implementations11 Aug 2024 Boyang Sun, Ignavier Ng, Guangyi Chen, Yifan Shen, Qirong Ho, Kun Zhang

Identifying the causal relations between interested variables plays a pivotal role in representation learning as it provides deep insights into the dataset.

Continual Learning Representation Learning

On the Identification of Temporally Causal Representation with Instantaneous Dependence

no code implementations24 May 2024 Zijian Li, Yifan Shen, Kaitao Zheng, Ruichu Cai, Xiangchen Song, Mingming Gong, Zhengmao Zhu, Guangyi Chen, Kun Zhang

To fill this gap, we propose an \textbf{ID}entification framework for instantane\textbf{O}us \textbf{L}atent dynamics (\textbf{IDOL}) by imposing a sparse influence constraint that the latent causal processes have sparse time-delayed and instantaneous relations.

Motion Forecasting Representation Learning +2

Explainable Survival Analysis with Uncertainty using Convolution-Involved Vision Transformer

no code implementations journal 2024 Zhihao Tang, Li Liu, Yifan Shen, Zongyi Chen, Guixiang Ma, Jiyan Dong, Xujie Sun, Xi Zhang, Chaozhuo Li, Qingfeng Zheng, Lin Yang

Highlights•Without patching WSIs, a novel ViT-based model is proposed for survival predictions.•We first introduce aleatoric uncertainty into the survival loss function.•We explain survival prediction using a post-hoc explainable method.•Our method outperforms baselines in accuracy, explainability, and reliability.

Survival Analysis Survival Prediction

Practical Region-level Attack against Segment Anything Models

1 code implementation12 Apr 2024 Yifan Shen, Zhengyuan Li, Gang Wang

Segment Anything Models (SAM) have made significant advancements in image segmentation, allowing users to segment target portions of an image with a single click (i. e., user prompt).

Image Segmentation Semantic Segmentation

Towards Adversarially Robust Dataset Distillation by Curvature Regularization

no code implementations15 Mar 2024 Eric Xue, Yijiang Li, Haoyang Liu, Peiran Wang, Yifan Shen, Haohan Wang

Extensive empirical experiments suggest that our method not only outperforms standard adversarial training on both accuracy and robustness with less computation overhead but is also capable of generating robust distilled datasets that can withstand various adversarial attacks.

Adversarial Robustness Dataset Distillation

CaRiNG: Learning Temporal Causal Representation under Non-Invertible Generation Process

1 code implementation25 Jan 2024 Guangyi Chen, Yifan Shen, Zhenhao Chen, Xiangchen Song, Yuewen Sun, Weiran Yao, Xiao Liu, Kun Zhang

Identifying the underlying time-delayed latent causal processes in sequential data is vital for grasping temporal dynamics and making downstream reasoning.

Revisiting Open World Object Detection

1 code implementation3 Jan 2022 Xiaowei Zhao, Xianglong Liu, Yifan Shen, Yixuan Qiao, Yuqing Ma, Duorui Wang

Open World Object Detection (OWOD), simulating the real dynamic world where knowledge grows continuously, attempts to detect both known and unknown classes and incrementally learn the identified unknown ones.

Object object-detection +1

Self-learn to Explain Siamese Networks Robustly

no code implementations15 Sep 2021 Chao Chen, Yifan Shen, Guixiang Ma, Xiangnan Kong, Srinivas Rangarajan, Xi Zhang, Sihong Xie

Learning to compare two objects are essential in applications, such as digital forensics, face recognition, and brain network analysis, especially when labeled data is scarce and imbalanced.

Face Recognition Fairness +1

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