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This paper considers the problem of model selection within the context of finite element model updating. Given that a number of FEM updating models, with different updating parameters, can be designed, this paper proposes using the Bayesian…

统计计算 · 统计学 2008-10-16 Linda Mthembu , Tshilidzi Marwala , Michael I. Friswell , Sondipon Adhikari

Language models have shown unprecedented capabilities, sparking debate over the source of their performance. Is it merely the outcome of learning syntactic patterns and surface level statistics, or do they extract semantics and a world…

机器学习 · 计算机科学 2024-07-16 Adam Karvonen

Recurrent neural networks (RNNs) are more suitable for learning non-linear dependencies in dynamical systems from observed time series data. In practice all the external variables driving such systems are not known a priori, especially in…

As neural networks are increasingly being applied to real-world applications, mechanisms to address distributional shift and sequential task learning without forgetting are critical. Methods incorporating network expansion have shown…

机器学习 · 计算机科学 2021-03-26 Vinay Kumar Verma , Kevin J Liang , Nikhil Mehta , Piyush Rai , Lawrence Carin

The celebrated message-passing updates for graph neural networks allow representing large-scale graphs with local and computationally tractable updates. However, the updates suffer from backtracking, i.e., a message flowing through the same…

机器学习 · 计算机科学 2024-09-26 Seonghyun Park , Narae Ryu , Gahee Kim , Dongyeop Woo , Se-Young Yun , Sungsoo Ahn

Recent advances in deep learning optimization showed that, with some a-posteriori information on fully-trained models, it is possible to match the same performance by simply training a subset of their parameters. Such a discovery has a…

机器学习 · 计算机科学 2022-11-15 Andrea Bragagnolo , Enzo Tartaglione , Marco Grangetto

In this article, we study the efficient dynamical computation of all-pairs SimRanks on time-varying graphs. Li {\em et al}.'s approach requires $O(r^4 n^2)$ time and $O(r^2 n^2)$ memory in a graph with $n$ nodes, where $r$ is the target…

数据库 · 计算机科学 2017-11-02 Weiren Yu , Xuemin Lin , Wenjie Zhang , Julie A. McCann

We have developed a novel prediction method based on string invariants. The method does not require learning but a small set of parameters must be set to achieve optimal performance. We have implemented an evolutionary algorithm for the…

统计金融 · 定量金融 2016-06-29 Marek Bundzel , Tomas Kasanicky , Richard Pincak

State-of-the-art neural algorithmic reasoners make use of message passing in graph neural networks (GNNs). But typical GNNs blur the distinction between the definition and invocation of the message function, forcing a node to send messages…

机器学习 · 计算机科学 2024-01-15 Andrew Dudzik , Tamara von Glehn , Razvan Pascanu , Petar Veličković

A new algorithm, termed subspace evolution and transfer (SET), is proposed for solving the consistent matrix completion problem. In this setting, one is given a subset of the entries of a low-rank matrix, and asked to find one low-rank…

信息论 · 计算机科学 2010-02-03 Wei Dai , Olgica Milenkovic

The Finite Elements with Switch Detection (FESD) method is a highly accurate direct transcription method for optimal control of several classes of nonsmooth dynamical systems. This paper extends the FESD method to Projected Dynamical…

最优化与控制 · 数学 2024-04-09 Anton Pozharskiy , Armin Nurkanović , Moritz Diehl

This paper proposes AEDA (An Easier Data Augmentation) technique to help improve the performance on text classification tasks. AEDA includes only random insertion of punctuation marks into the original text. This is an easier technique to…

计算与语言 · 计算机科学 2021-08-31 Akbar Karimi , Leonardo Rossi , Andrea Prati

Part-based approaches for fine-grained recognition do not show the expected performance gain over global methods, although explicitly focusing on small details that are relevant for distinguishing highly similar classes. We assume that…

计算机视觉与模式识别 · 计算机科学 2023-07-31 Dimitri Korsch , Paul Bodesheim , Joachim Denzler

Storage systems have a strong need for substantially improving their error correction capabilities, especially for long-term storage where the accumulating errors can exceed the decoding threshold of error-correcting codes (ECCs). In this…

信息论 · 计算机科学 2018-11-12 Pulakesh Upadhyaya , Anxiao , Jiang

In this paper, the authors propose the utilization of Fibonacci Neural Networks (FNN) for solving arbitrary order differential equations. The FNN architecture comprises input, middle, and output layers, with various degrees of Fibonacci…

数论 · 数学 2024-08-27 Kushal Dhar Dwivedi , Anup Singh

To allow for tractable probabilistic inference with respect to domain sizes, lifted probabilistic inference exploits symmetries in probabilistic graphical models. However, checking whether two factors encode equivalent semantics and hence…

人工智能 · 计算机科学 2024-04-08 Malte Luttermann , Johann Machemer , Marcel Gehrke

Efficient Natural Evolution Strategies (eNES) is a novel alternative to conventional evolutionary algorithms, using the natural gradient to adapt the mutation distribution. Unlike previous methods based on natural gradients, eNES uses a…

人工智能 · 计算机科学 2012-09-27 Yi Sun , Daan Wierstra , Tom Schaul , Juergen Schmidhuber

Recent few-shot methods, such as parameter-efficient fine-tuning (PEFT) and pattern exploiting training (PET), have achieved impressive results in label-scarce settings. However, they are difficult to employ since they are subject to high…

计算与语言 · 计算机科学 2022-09-23 Lewis Tunstall , Nils Reimers , Unso Eun Seo Jo , Luke Bates , Daniel Korat , Moshe Wasserblat , Oren Pereg

Recent works have shown that gradient-update alignment is a powerful signal for modulating optimizer updates, often leading to faster training. We promote this update-wise heuristic as a mathematically grounded principle for selecting and…

机器学习 · 计算机科学 2026-05-08 Jaerin Lee , Kyoung Mu Lee

Training deep computer vision models requires manual oversight or hyperparameter tuning of the learning rate (LR) schedule. While existing adaptive optimizers schedule the LR automatically, they suffer from computational and memory…

机器学习 · 计算机科学 2026-01-22 Dhrubo Saha