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Neural operators, which can act as implicit solution operators of hidden governing equations, have recently become popular tools for learning the responses of complex real-world physical systems. Nevertheless, most neural operator…

Materials Science · Physics 2024-01-12 Siavash Jafarzadeh , Stewart Silling , Ning Liu , Zhongqiang Zhang , Yue Yu

Neural operators have emerged as a powerful tool for solving partial differential equations (PDEs) and other complex scientific computing tasks. However, the performance of single operator block is often limited, thus often requiring…

Numerical Analysis · Mathematics 2025-07-18 Yichen Wang , Wenlian Lu

In this work, we consider a group of robots working together to manipulate a rigid object to track a desired trajectory in $SE(3)$. The robots do not know the mass or friction properties of the object, or where they are attached to the…

Robotics · Computer Science 2021-08-23 Preston Culbertson , Jean-Jacques E. Slotine , Mac Schwager

This work aims to develop a resource-efficient solution for obstacle-avoiding tracking control of a planar snake robot in a densely cluttered environment with obstacles. Particularly, Neuro-Evolution of Augmenting Topologies (NEAT) has been…

Robotics · Computer Science 2025-11-18 Advik Sinha , Akshay Arjun , Abhijit Das , Joyjit Mukherjee

The object sizes in images are diverse, therefore, capturing multiple scale context information is essential for semantic segmentation. Existing context aggregation methods such as pyramid pooling module (PPM) and atrous spatial pyramid…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Congcong Wang , Faouzi Alaya Cheikh , Azeddine Beghdadi , Ole Jakob Elle

We study the vision transformer structure in the mobile level in this paper, and find a dramatic performance drop. We analyze the reason behind this phenomenon, and propose a novel irregular patch embedding module and adaptive patch fusion…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Pengguang Chen , Yixin Chen , Shu Liu , Mingchang Yang , Jiaya Jia

Point cloud classifiers with rotation robustness have been widely discussed in the 3D deep learning community. Most proposed methods either use rotation invariant descriptors as inputs or try to design rotation equivariant networks.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Robin Wang , Yibo Yang , Dacheng Tao

Recent years have witnessed the promise of coupling machine learning methods and physical domain-specific insights for solving scientific problems based on partial differential equations (PDEs). However, being data-intensive, these methods…

Machine Learning · Computer Science 2025-06-03 Wuyang Chen , Jialin Song , Pu Ren , Shashank Subramanian , Dmitriy Morozov , Michael W. Mahoney

Self-supervised contrastive learning has emerged as a powerful paradigm for skeleton-based action recognition by enforcing consistency in the embedding space. However, existing methods rely on binary contrastive objectives that overlook the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Yingjie Feng , Yi Wang , Jiaze Wang , Anfeng Liu , Zhuotao Tian

We present PAT, a transformer-based network that learns complex temporal co-occurrence action dependencies in a video by exploiting multi-scale temporal features. In existing methods, the self-attention mechanism in transformers loses the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Faegheh Sardari , Armin Mustafa , Philip J. B. Jackson , Adrian Hilton

We propose Mixed-Panels-Transformer Encoder (MPTE), a novel framework for estimating factor models in panel datasets with mixed frequencies and nonlinear signals. Traditional factor models rely on linear signal extraction and require…

Econometrics · Economics 2026-01-26 Alessio Brini , Ekaterina Seregina

Continual Learning (CL) is a powerful tool that enables agents to learn a sequence of tasks, accumulating knowledge learned in the past and using it for problem-solving or future task learning. However, existing CL methods often assume that…

Machine Learning · Computer Science 2025-06-09 Chaofan Pan , Jiafen Liu , Yanhua Li , Linbo Xiong , Fan Min , Wei Wei , Xin Yang

DeepONet has recently been proposed as a representative framework for learning nonlinear mappings between function spaces. However, when it comes to approximating solution operators of partial differential equations (PDEs) with…

Numerical Analysis · Mathematics 2024-08-09 Yameng Zhu , Jingrun Chen , Weibing Deng

Large language models exhibit sophisticated capabilities, yet understanding how they work internally remains a central challenge. A fundamental obstacle is that training selects for behavior, not circuitry, so many weight configurations can…

Machine Learning · Computer Science 2026-02-27 Joshua S. Schiffman

The Transformer architecture has revolutionized artificial intelligence, yet a principled theoretical understanding of its internal mechanisms remains elusive. This paper introduces a novel analytical framework that reconceptualizes the…

Machine Learning · Computer Science 2025-09-30 Yukun Zhang , Xueqing Zhou

We consider a general class of nonsmooth optimal control problems with partial differential equation (PDE) constraints, which are very challenging due to its nonsmooth objective functionals and the resulting high-dimensional and…

Optimization and Control · Mathematics 2023-07-26 Yongcun Song , Xiaoming Yuan , Hangrui Yue

Forecasting future trajectories of agents in complex traffic scenes requires reliable and efficient predictions for all agents in the scene. However, existing methods for trajectory prediction are either inefficient or sacrifice accuracy.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Görkay Aydemir , Adil Kaan Akan , Fatma Güney

Autonomous AI agents operating in dynamic environments face a persistent challenge: acquiring new capabilities without erasing prior knowledge. We present Adaptive Memory Crystallization (AMC), a memory architecture for progressive…

Machine Learning · Computer Science 2026-04-16 Rajat Khanda , Mohammad Baqar Sambuddha Chakrabarti , Satyasaran Changdar

Domain Adaptation (DA) approaches achieved significant improvements in a wide range of machine learning and computer vision tasks (i.e., classification, detection, and segmentation). However, as far as we are aware, there are few methods…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Can Qin , Haoxuan You , Lichen Wang , C. -C. Jay Kuo , Yun Fu

Recently MLP-based methods have shown strong performance in point cloud analysis. Simple MLP architectures are able to learn geometric features in local point groups yet fail to model long-range dependencies directly. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Xingyilang Yin , Xi Yang , Liangchen Liu , Nannan Wang , Xinbo Gao
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