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We introduce the Mori-Zwanzig Mode Decomposition (MZMD), a novel data-driven technique for efficient modal analysis of and reduced-order modeling of large-scale spatio-temporal dynamical systems. MZMD represents an extension of Dynamic Mode…

流体动力学 · 物理学 2025-05-09 Michael Woodward , Yen Ting Lin , Yifeng Tian , Christoph Hader , Hermann Fasel , Daniel Livescu

The idea of decision-aware model learning, that models should be accurate where it matters for decision-making, has gained prominence in model-based reinforcement learning. While promising theoretical results have been established, the…

机器学习 · 计算机科学 2024-03-04 Claas A Voelcker , Arash Ahmadian , Romina Abachi , Igor Gilitschenski , Amir-massoud Farahmand

In most applications of utilizing neural networks for mathematical optimization, a dedicated model is trained for each specific optimization objective. However, in many scenarios, several distinct yet correlated objectives or tasks often…

机器学习 · 计算机科学 2024-04-15 Wei Cui , Wei Yu

Recent research in non-intrusive data-driven model order reduction (MOR) enabled accurate and efficient approximation of parameterized ordinary differential equations (ODEs). However, previous studies have focused on constant parameters,…

动力系统 · 数学 2021-10-27 Jonas Kneifl , Julian Hay , Jörg Fehr

Closure problems are omnipresent when simulating multiscale systems, where some quantities and processes cannot be fully prescribed despite their effects on the simulation's accuracy. Recently, scientific machine learning approaches have…

数值分析 · 数学 2024-09-13 Benjamin Sanderse , Panos Stinis , Romit Maulik , Shady E. Ahmed

A new technique to derive delay models from systems of partial differential equations, based on the Mori-Zwanzig formalism, is used to derive a delay difference equation model for the Atlantic Multidecadal Oscillation. The Mori-Zwanzig…

动力系统 · 数学 2021-03-17 Swinda K. J. Falkena , Courtney Quinn , Jan Sieber , Henk A. Dijkstra

The pre-trained foundation models (PFMs) have become essential for facilitating large-scale multimodal learning. Researchers have effectively employed the ``pre-train, prompt, and predict'' paradigm through prompt learning to induce…

计算与语言 · 计算机科学 2025-12-24 Xiang Chen , Yixin Ou , Quan Feng , Lei Li , Piji Li , Haibo Ye , Sheng-Jun Huang , Shuofei Qiao , Shumin Deng , Huajun Chen , Ningyu Zhang

Reinforcement Learning faces an important challenge in partial observable environments that has long-term dependencies. In order to learn in an ambiguous environment, an agent has to keep previous perceptions in a memory. Earlier memory…

机器学习 · 计算机科学 2023-02-22 Alper Demir

Recent work has shown that memory modules are crucial for the generalization ability of neural networks on learning simple algorithms. However, we still have little understanding of the working mechanism of memory modules. To alleviate this…

机器学习 · 计算机科学 2019-07-02 Kexin Wang , Yu Zhou , Shaonan Wang , Jiajun Zhang , Chengqing Zong

It has been observed that neural networks perform poorly when the data or tasks are presented sequentially. Unlike humans, neural networks suffer greatly from catastrophic forgetting, making it impossible to perform life-long learning. To…

机器学习 · 计算机科学 2023-01-31 Longhui Yu , Tianyang Hu , Lanqing Hong , Zhen Liu , Adrian Weller , Weiyang Liu

Students have a limited time to study and are typically ineffective at allocating study time. Machine-directed study strategies that identify which items need reinforcement and dictate the spacing of repetition have been shown to help…

计算机与社会 · 计算机科学 2018-03-02 Shane Mooney , Karen Sun , Eric Bomgardner

Despite their success in image generation, diffusion models can memorize training data, raising serious privacy and copyright concerns. Although prior work has sought to characterize, detect, and mitigate memorization, the fundamental…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Juyeop Kim , Songkuk Kim , Jong-Seok Lee

We consider the problem of deep neural net compression by quantization: given a large, reference net, we want to quantize its real-valued weights using a codebook with $K$ entries so that the training loss of the quantized net is minimal.…

机器学习 · 计算机科学 2017-07-17 Miguel Á. Carreira-Perpiñán , Yerlan Idelbayev

Prompt learning approaches have made waves in natural language processing by inducing better few-shot performance while they still follow a parametric-based learning paradigm; the oblivion and rote memorization problems in learning may…

计算与语言 · 计算机科学 2023-09-20 Xiang Chen , Lei Li , Ningyu Zhang , Xiaozhuan Liang , Shumin Deng , Chuanqi Tan , Fei Huang , Luo Si , Huajun Chen

We propose incremental (re)training of a neural network model to cope with a continuous flow of new data in inference during model serving. As such, this is a life-long learning process. We address two challenges of life-long retraining:…

机器学习 · 计算机科学 2020-04-30 Diego Klabjan , Xiaofeng Zhu

Making neural networks remember over the long term has been a longstanding issue. Although several external memory techniques have been introduced, most focus on retaining recent information in the short term. Regardless of its importance,…

机器学习 · 计算机科学 2024-07-19 Sangjun Park , JinYeong Bak

Models trained on a new task typically degrade on prior tasks, a phenomenon known as forgetting. Traditionally, mitigating forgetting has required replaying stored exemplars from prior tasks, which is often impractical. By contrast,…

机器学习 · 计算机科学 2026-05-26 Martin Marek , Dongkyu Cho , Shikai Qiu , Rumi Chunara , Pavel Izmailov , Andrew Gordon Wilson

Recent advancements in large language models (LLMs) reveal a perplexing phenomenon in continual learning: despite extensive training, models experience significant performance declines, raising questions about task alignment and underlying…

机器学习 · 计算机科学 2025-01-24 Junhao Zheng , Xidi Cai , Shengjie Qiu , Qianli Ma

Structured state-space models (SSMs) have been developed to offer more persistent memory retention than traditional recurrent neural networks, while maintaining real-time inference capabilities and addressing the time-complexity limitations…

机器学习 · 计算机科学 2025-09-09 Takashi Morita

Significant efforts have been devoted in the last decade towards improving the predictivity of coarse-grained models in molecular dynamics simulations and providing a rigorous justification of their use, through a combination of theoretical…

化学物理 · 物理学 2019-01-16 Nicodemo Di Pasquale , Thomas Hudson , Matteo Icardi