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Preventing catastrophic forgetting while continually learning new tasks is an essential problem in lifelong learning. Structural regularization (SR) refers to a family of algorithms that mitigate catastrophic forgetting by penalizing the…

机器学习 · 计算机科学 2021-04-20 Haoran Li , Aditya Krishnan , Jingfeng Wu , Soheil Kolouri , Praveen K. Pilly , Vladimir Braverman

This paper proposes a regularizer called Implicit Neural Representation Regularizer (INRR) to improve the generalization ability of the Implicit Neural Representation (INR). The INR is a fully connected network that can represent signals…

机器学习 · 计算机科学 2023-03-29 Zhemin Li , Hongxia Wang , Deyu Meng

Feature selection identifies subsets of informative features and reduces dimensions in the original feature space, helping provide insights into data generation or a variety of domain problems. Existing methods mainly depend on feature…

机器学习 · 计算机科学 2021-06-07 Xinxing Wu , Qiang Cheng

Hyperspectral (HS) unmixing is the process of decomposing an HS image into material-specific spectra (endmembers) and their spatial distributions (abundance maps). Existing unmixing methods have two limitations with respect to noise…

图像与视频处理 · 电气工程与系统科学 2024-03-20 Kazuki Naganuma , Shunsuke Ono

In this paper we consider the training of single hidden layer neural networks by pseudoinversion, which, in spite of its popularity, is sometimes affected by numerical instability issues. Regularization is known to be effective in such…

神经与进化计算 · 计算机科学 2015-08-26 Rossella Cancelliere , Mario Gai , Patrick Gallinari , Luca Rubini

Consistency regularization is a commonly-used technique for semi-supervised and self-supervised learning. It is an auxiliary objective function that encourages the prediction of the network to be similar in the vicinity of the observed…

机器学习 · 计算机科学 2021-10-05 Erik Englesson , Hossein Azizpour

The kernel trick concept, formulated as an inner product in a feature space, facilitates powerful extensions to many well-known algorithms. While the kernel matrix involves inner products in the feature space, the sample covariance matrix…

统计计算 · 统计学 2017-07-20 Tomer Lancewicki

We propose a new constrained optimization approach to hyperspectral (HS) image restoration. Most existing methods restore a desirable HS image by solving some optimization problem, which consists of a regularization term(s) and a…

信号处理 · 电气工程与系统科学 2020-09-09 Saori Takeyama , Shunsuke Ono , Itsuo Kumazawa

Sequential learning, also called lifelong learning, studies the problem of learning tasks in a sequence with access restricted to only the data of the current task. In this paper we look at a scenario with fixed model capacity, and…

机器学习 · 统计学 2019-04-15 Rahaf Aljundi , Marcus Rohrbach , Tinne Tuytelaars

Isospectral reduction is an important tool for network/matrix analysis as it reduces the dimension of a matrix/network while preserving its eigenvalues and eigenvectors. The main contribution of this manuscript is a proposed algorithmic…

动力系统 · 数学 2025-03-18 Alexandre Baraviera , Pedro Duarte , Longmei Shu , Maria Joana Torres

Standard regularization methods that are used to compute solutions to ill-posed inverse problems require knowledge of the forward model. In many real-life applications, the forward model is not known, but training data is readily available.…

数值分析 · 数学 2015-06-19 Julianne Chung , Matthias Chung

Equivariance is a powerful inductive bias in neural networks, improving generalisation and physical consistency. Recently, however, non-equivariant models have regained attention, due to their better runtime performance and imperfect…

机器学习 · 计算机科学 2026-05-27 Torben Berndt , Jan Stühmer

Several state-of-the-art neural graph embedding methods are based on short random walks (stochastic processes) because of their ease of computation, simplicity in capturing complex local graph properties, scalability, and interpretibility.…

机器学习 · 计算机科学 2020-07-30 Charu Sharma , Jatin Chauhan , Manohar Kaul

Abstractive text summarization is a highly difficult problem, and the sequence-to-sequence model has shown success in improving the performance on the task. However, the generated summaries are often inconsistent with the source content in…

计算与语言 · 计算机科学 2018-05-11 Bingzhen Wei , Xuancheng Ren , Xu Sun , Yi Zhang , Xiaoyan Cai , Qi Su

Many inverse problems and signal processing problems involve low-rank regularizers based on the nuclear norm. Commonly, proximal gradient methods (PGM) are adopted to solve this type of non-smooth problems as they can offer fast and…

信号处理 · 电气工程与系统科学 2025-11-25 Rodrigo A. Lobos , Javier Salazar Cavazos , Raj Rao Nadakuditi , Jeffrey A. Fessler

Matrix approximations are a key element in large-scale algebraic machine learning approaches. The recently proposed method MEKA (Si et al., 2014) effectively employs two common assumptions in Hilbert spaces: the low-rank property of an…

机器学习 · 计算机科学 2022-01-21 Simon Heilig , Maximilian Münch , Frank-Michael Schleif

We propose a new iterative unfolding method for experimental data, making use of a regularization function. The use of this function allows one to build an improved normalization procedure for Monte Carlo spectra, unbiased by the presence…

数据分析、统计与概率 · 物理学 2009-07-23 Bogdan Malaescu

Regularization is a powerful technique for extracting useful information from noisy data. Typically, it is implemented by adding some sort of norm constraint to an objective function and then exactly optimizing the modified objective…

数据结构与算法 · 计算机科学 2011-04-28 Michael W. Mahoney , Lorenzo Orecchia

In this work, we analyze the regularizing property of the stochastic gradient descent for the efficient numerical solution of a class of nonlinear ill-posed inverse problems in Hilbert spaces. At each step of the iteration, the method…

最优化与控制 · 数学 2019-07-09 Bangti Jin , Zehui Zhou , Jun Zou

Randomized trace estimation is a popular and well studied technique that approximates the trace of a large-scale matrix $B$ by computing the average of $x^T Bx$ for many samples of a random vector $X$. Often, $B$ is symmetric positive…

数值分析 · 数学 2021-05-26 Alice Cortinovis , Daniel Kressner