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Compositional data, such as human gut microbiomes, consist of non-negative variables whose only the relative values to other variables are available. Analyzing compositional data such as human gut microbiomes needs a careful treatment of…

机器学习 · 统计学 2022-05-04 Binglin Li , Jeongyoun Ahn

Motivated by the needs from an airline crew scheduling application, we introduce structured convolutional kernel networks (Struct-CKN), which combine CKNs from Mairal et al. (2014) in a structured prediction framework that supports…

机器学习 · 计算机科学 2021-07-26 Yassine Yaakoubi , François Soumis , Simon Lacoste-Julien

Canonical correlation analysis (CCA) is a technique to find statistical dependencies between a pair of multivariate data. However, its application to high dimensional data is limited due to the resulting time complexity. While the…

机器学习 · 计算机科学 2020-12-29 Naoko Koide-Majima , Kei Majima

Reduced modeling of a computationally demanding dynamical system aims at approximating its trajectories, while optimizing the trade-off between accuracy and computational complexity. In this work, we propose to achieve such an approximation…

机器学习 · 统计学 2025-02-20 Patrick Héas , Cédric Herzet , Benoit Combès

Principal Component Analysis (PCA) is a dimensionality reduction technique widely used to reduce the computational cost associated with numerical simulations of combustion phenomena. However, PCA, which transforms the thermo-chemical state…

流体动力学 · 物理学 2026-02-26 Anirudh Jonnalagadda , Shubham P. Kulkarni , Akash Rodhiya , Hemanth Kolla , Konduri Aditya

A methodological framework for ensemble-based estimation and simulation of high dimensional dynamical systems such as the oceanic or atmospheric flows is proposed. To that end, the dynamical system is embedded in a family of reproducing…

数学物理 · 物理学 2024-01-02 Benjamin Dufée , Bérenger Hug , Etienne Mémin , Gilles Tissot

In this paper, we study the problem of identifying the impulse response of a linear time invariant (LTI) dynamical system from the knowledge of the input signal and a finite set of noisy output observations. We adopt an approach based on…

系统与控制 · 计算机科学 2015-03-20 Francesco Dinuzzo

We propose a clustering-based approach for identifying coherent flow structures in continuous dynamical systems. We first treat a particle trajectory over a finite time interval as a high-dimensional data point and then cluster these data…

动力系统 · 数学 2022-12-27 Wai Ming Chau , Shingyu Leung

Canonical correlation analysis (CCA) is a multivariate statistical technique for finding the linear relationship between two sets of variables. The kernel generalization of CCA named kernel CCA has been proposed to find nonlinear relations…

机器学习 · 统计学 2017-01-17 Xiaowei Zhang , Delin Chu , Li-Zhi Liao , Michael K. Ng

The canonical tensor model (CTM) is a tensor model in Hamilton formalism and is studied as a model for gravity in both classical and quantum frameworks. Its dynamical variables are a canonical conjugate pair of real symmetric three-index…

高能物理 - 理论 · 物理学 2018-07-04 Taigen Kawano , Dennis Obster , Naoki Sasakura

We implement an all-optical setup demonstrating kernel-based quantum machine learning for two-dimensional classification problems. In this hybrid approach, kernel evaluations are outsourced to projective measurements on suitably designed…

This paper presents a canonical polyadic (CP) tensor decomposition that addresses unaligned observations. The mode with unaligned observations is represented using functions in a reproducing kernel Hilbert space (RKHS). We introduce a…

机器学习 · 统计学 2025-08-12 Runshi Tang , Tamara Kolda , Anru R. Zhang

This paper investigates a novel algorithmic approach to data representation based on kernel methods. Assuming that the observations lie in a Hilbert space X, the introduced Kernel Autoencoder (KAE) is the composition of mappings from…

机器学习 · 统计学 2020-12-03 Pierre Laforgue , Stephan Clémençon , Florence d'Alché-Buc

We introduce a kernel method for manifold alignment (KEMA) and domain adaptation that can match an arbitrary number of data sources without needing corresponding pairs, just few labeled examples in all domains. KEMA has interesting…

机器学习 · 统计学 2016-04-04 Devis Tuia , Gustau Camps-Valls

This paper builds the theoretical foundations for dynamic mode decomposition (DMD) of control-affine dynamical systems by leveraging the theory of vector-valued reproducing kernel Hilbert spaces (RKHSs). Specifically, control Liouville…

最优化与控制 · 数学 2024-03-19 Joel A. Rosenfeld , Rushikesh Kamalapurkar

This paper presents a new method for learning dissipative Hamiltonian dynamics from a limited and noisy dataset. The method uses the Helmholtz decomposition to learn a vector field as the sum of a symplectic and a dissipative vector field.…

机器学习 · 计算机科学 2025-03-18 Torbjørn Smith , Olav Egeland

A data-driven and equation-free approach is proposed and discussed to model ships maneuvers in waves, based on the dynamic mode decomposition (DMD). DMD is a dimensionality-reduction/reduced-order modeling method, which provides a linear…

动力系统 · 数学 2021-05-28 Matteo Diez , Andea Serani , Emilio F. Campana , Frederick Stern

We introduce a new scalable variational Gaussian process approximation which provides a high fidelity approximation while retaining general applicability. We propose the harmonic kernel decomposition (HKD), which uses Fourier series to…

机器学习 · 计算机科学 2021-06-14 Shengyang Sun , Jiaxin Shi , Andrew Gordon Wilson , Roger Grosse

Similarity measures based purely on word embeddings are comfortably competing with much more sophisticated deep learning and expert-engineered systems on unsupervised semantic textual similarity (STS) tasks. In contrast to commonly used…

计算与语言 · 计算机科学 2019-10-08 Vitalii Zhelezniak , April Shen , Daniel Busbridge , Aleksandar Savkov , Nils Hammerla

The availability of multi-modality datasets provides a unique opportunity to characterize the same object of interest using multiple viewpoints more comprehensively. In this work, we investigate the use of canonical correlation analysis…

机器学习 · 计算机科学 2024-10-28 Vaishnavi Subramanian , Tanveer Syeda-Mahmood , Minh N. Do