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Plasticity, the ability of a neural network to quickly change its predictions in response to new information, is essential for the adaptability and robustness of deep reinforcement learning systems. Deep neural networks are known to lose…

机器学习 · 计算机科学 2023-11-28 Clare Lyle , Zeyu Zheng , Evgenii Nikishin , Bernardo Avila Pires , Razvan Pascanu , Will Dabney

We present two architectures for multi-task learning with neural sequence models. Our approach allows the relationships between different tasks to be learned dynamically, rather than using an ad-hoc pre-defined structure as in previous…

计算与语言 · 计算机科学 2018-11-27 Pengfei Liu , Jie Fu , Yue Dong , Xipeng Qiu , Jackie Chi Kit Cheung

Graph neural networks (GNNs) often struggle to learn discriminative node representations for heterophilic graphs, where connected nodes tend to have dissimilar labels and feature similarity provides weak structural cues. We propose…

机器学习 · 计算机科学 2025-12-30 Ayushman Raghuvanshi , Gonzalo Mateos , Sundeep Prabhakar Chepuri

We study the average case performance of multi-task Gaussian process (GP) regression as captured in the learning curve, i.e. the average Bayes error for a chosen task versus the total number of examples $n$ for all tasks. For GP covariances…

机器学习 · 计算机科学 2012-11-05 Simon R. F. Ashton , Peter Sollich

Multitask learning (MTL) aims to learn multiple tasks simultaneously through the interdependence between different tasks. The way to measure the relatedness between tasks is always a popular issue. There are mainly two ways to measure…

机器学习 · 计算机科学 2019-04-04 Ya Li , Xinmei Tian , Tongliang Liu , Dacheng Tao

Graph convolutional neural networks (GCNNs) have become a machine learning workhorse for screening the chemical space of crystalline materials in fields such as catalysis and energy storage, by predicting properties from structures.…

Graph Neural Networks (GNNs) have been widely employed for feature representation learning in molecular graphs. Therefore, it is crucial to enhance the expressiveness of feature representation to ensure the effectiveness of GNNs. However, a…

机器学习 · 计算机科学 2024-09-16 Chengyu Yao , Hong Huang , Hang Gao , Fengge Wu , Haiming Chen , Junsuo Zhao

Graph learning has emerged as a promising technique for multi-view clustering with its ability to learn a unified and robust graph from multiple views. However, existing graph learning methods mostly focus on the multi-view consistency…

机器学习 · 计算机科学 2021-07-06 Youwei Liang , Dong Huang , Chang-Dong Wang , Philip S. Yu

To address the challenges of long-tailed classification, researchers have proposed several approaches to reduce model bias, most of which assume that classes with few samples are weak classes. However, recent studies have shown that tail…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Yanbiao Ma , Licheng Jiao , Fang Liu , Maoji Wen , Lingling Li , Wenping Ma , Shuyuan Yang , Xu Liu , Puhua Chen

We introduce a neural implicit framework that exploits the differentiable properties of neural networks and the discrete geometry of point-sampled surfaces to approximate them as the level sets of neural implicit functions. To train a…

图形学 · 计算机科学 2024-03-07 Tiago Novello , Guilherme Schardong , Luiz Schirmer , Vinicius da Silva , Helio Lopes , Luiz Velho

As object recognition becomes an increasingly common ML task, and recent research demonstrating CNNs vulnerability to attacks and small image perturbations necessitate fully understanding the foundations of object recognition. We focus on…

计算机视觉与模式识别 · 计算机科学 2018-11-01 Megha Srivastava , Kalanit Grill-Spector

The importance of studying properties of networks is manifest in diverse fields ranging from biology, engineering, physics, chemistry, neuroscience, and medicine. The functionality of networks with regard to performance, throughput,…

Multi-task learning (MTL) refers to the paradigm of learning multiple related tasks together. In contrast, in single-task learning (STL) each individual task is learned independently. MTL often leads to better trained models because they…

机器学习 · 统计学 2019-07-03 Jian Liang , Ziqi Liu , Jiayu Zhou , Xiaoqian Jiang , Changshui Zhang , Fei Wang

Understanding the curvature evolution of the loss landscape is fundamental to analyzing the training dynamics of neural networks. The most commonly studied measure, Hessian sharpness ($\lambda_{\max}^H$) -- the largest eigenvalue of the…

Graph neural networks, trained on experimental or calculated data are becoming an increasingly important tool in computational materials science. Networks, once trained, are able to make highly accurate predictions at a fraction of the cost…

材料科学 · 物理学 2024-06-19 Johannes Allotey , Keith T. Butler , Jeyan Thiyagalingam

A key feature of neural network architectures is their ability to support the simultaneous interaction among large numbers of units in the learning and processing of representations. However, how the richness of such interactions trades off…

Graph convolutional networks are a new promising learning approach to deal with data on irregular domains. They are predestined to overcome certain limitations of conventional grid-based architectures and will enable efficient handling of…

计算机视觉与模式识别 · 计算机科学 2018-09-17 Lasse Hansen , Jasper Diesel , Mattias P. Heinrich

A number of network structural characteristics have recently been the subject of particularly intense research, including degree distributions, community structure, and various measures of vertex centrality, to mention only a few. Vertices…

社会与信息网络 · 计算机科学 2016-03-23 Igor Trpevski , Tamara Dimitrova , Tommy Boshkovski , Ljupco Kocarev

There has been a recent surge of interest in using machine learning to approximate density functional theory (DFT) in materials science. However, many of the most performant models are evaluated on large databases of computed properties of,…

材料科学 · 物理学 2021-07-02 Filip Ekström , Rickard Armiento , Fredrik Lindsten

Curvature influences generalization, robustness, and how reliably neural networks respond to small input perturbations. Existing sharpness metrics are typically defined in parameter space (e.g., Hessian eigenvalues) and can be expensive,…

机器学习 · 计算机科学 2025-11-04 Jacob Poschl