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Fractional processes have gained popularity in financial modeling due to the dependence structure of their increments and the roughness of their sample paths. The non-Markovianity of these processes gives, however, rise to conceptual and…

Mathematical Finance · Quantitative Finance 2018-02-07 Philipp Harms , David Stefanovits

Current linearizing encoding models that predict neural responses to sensory input typically neglect neuroscience-inspired constraints that could enhance model efficiency and interpretability. To address this, we propose a new method called…

We show that any affine invariant function on the set of positive definite matrices must factor through the determinant function, as long as the restriction of the function to scalar matrices is surjective. A motivation from robust…

Group Theory · Mathematics 2020-04-07 Jingbo Liu

This paper focuses on representing the $L^{\infty}$-norm of finite-dimensional linear time-invariant systems with parameter-dependent coefficients. Previous studies tackled the problem in a non-parametric scenario by simplifying it to…

Symbolic Computation · Computer Science 2023-12-05 Alban Quadrat , Fabrice Rouillier , Grace Younes

We present a method for approximating the solution of a parameterized, nonlinear dynamical system using an affine combination of solutions computed at other points in the input parameter space. The coefficients of the affine combination are…

Numerical Analysis · Mathematics 2013-04-09 Paul G. Constantine , Qiqi Wang

The problem of stationary robust L_infinity-induced deconvolution filtering for the uncertain continuous-time linear stochastic systems is addressed. The state space model of the system contains state- and input-dependent noise and…

Systems and Control · Computer Science 2013-12-31 Mehrdad Tabarraie

Unsupervised learning of latent variable models (LVMs) is widely used to represent data in machine learning. When such models reflect the ground truth factors and the mechanisms mapping them to observations, there is reason to expect that…

Machine Learning · Statistics 2023-01-23 Simon Buchholz , Michel Besserve , Bernhard Schölkopf

Given a multi-input, nonlinear, time-invariant, control-affine system and a controlled invariant, closed, embedded submanifold $\mathsf{N}$, the local transverse feedback linearization (TFL) problem seeks a coordinate and feedback…

Optimization and Control · Mathematics 2022-04-29 Rollen S. D'Souza , Christopher Nielsen

Latent force models (LFMs) are hybrid models combining mechanistic principles with non-parametric components. In this article, we shall show how LFMs can be equivalently formulated and solved using the state variable approach. We shall also…

Machine Learning · Computer Science 2012-02-20 Jouni Hartikainen , Simo Sarkka

Pre-trained vision models (PVMs) have demonstrated remarkable adaptability across a wide range of downstream vision tasks, showcasing exceptional performance. However, as these models scale to billions or even trillions of parameters,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Yi Xin , Jianjiang Yang , Siqi Luo , Yuntao Du , Qi Qin , Kangrui Cen , Yangfan He , Zhiwei Zhang , Bin Fu , Xiaokang Yang , Guangtao Zhai , Ming-Hsuan Yang , Xiaohong Liu

This paper proposes an anti-interference affine frequency division multiplexing (AFDM) system to ensure reliability and resource efficiency under malicious high-power interference originating from adversarial devices in high-mobility…

Information Theory · Computer Science 2025-12-18 Peng Yuan , Zulin Wang , Tao Luo , Yuanhan Ni

We study optimization-based criteria for the stability of switching systems, known as Path-Complete Lyapunov Functions, and ask the question "can we decide algorithmically when a criterion is less conservative than another". Our…

Dynamical Systems · Mathematics 2017-12-04 Matthew Philippe , Nikolaos Athanasopoulos , David Angeli , Raphaël M. Jungers

Learning identifiable representations and models from low-level observations is helpful for an intelligent spacecraft to complete downstream tasks reliably. For temporal observations, to ensure that the data generating process is provably…

Machine Learning · Computer Science 2024-12-05 Congxi Zhang , Yongchun Xie

We consider the reduction of parametric families of linear dynamical systems having an affine parameter dependence that differ from one another by a low-rank variation in the state matrix. Usual approaches for parametric model reduction…

Numerical Analysis · Mathematics 2019-12-25 Christopher Beattie , Serkan Gugercin , Zoran Tomljanovic

The Parameter-Efficient Fine-Tuning (PEFT) methods have been extensively researched for large language models in downstream tasks. Among all the existing approaches, the Low-Rank Adaptation (LoRA) has gained popularity for its streamlined…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Tangyu Jiang , Haodi Wang , Chun Yuan

Vision transformer family has dominated the satellite pan-sharpening field driven by the global-wise spatial information modeling mechanism from the core self-attention ingredient. The standard modeling rules within these promising…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Junming Hou , Zihan Cao , Naishan Zheng , Xuan Li , Xiaoyu Chen , Xinyang Liu , Xiaofeng Cong , Man Zhou , Danfeng Hong

The latent position model (LPM) is a popular method used in network data analysis where nodes are assumed to be positioned in a $p$-dimensional latent space. The latent shrinkage position model (LSPM) is an extension of the LPM which…

Methodology · Statistics 2024-04-25 Xian Yao Gwee , Isobel Claire Gormley , Michael Fop

Parameter-Efficient Fine-Tuning (PEFT) of text-to-image models has become an increasingly popular technique with many applications. Among the various PEFT methods, Low-Rank Adaptation (LoRA) and its variants have gained significant…

Machine Learning · Computer Science 2025-08-01 Zerui Tao , Yuhta Takida , Naoki Murata , Qibin Zhao , Yuki Mitsufuji

Representation of nonlinear dynamical systems as infinite-dimensional linear operators over Hilbert spaces enables analysis of nonlinear systems via pseudo-spectral operator analysis. In this paper, we provide a novel representation for…

Optimization and Control · Mathematics 2024-01-04 Zachary Morrison , Moad Abudia , Joel Rosenfeld , Rushikesh Kamalapurar

In this article, a new concept of LR-type interval-valued intuitionistic fuzzy numbers (LR-type IVIFN) has been introduced. The theory has also been enriched by demonstrating diagrammatic representations of LR-type IVIFNs and establishing…

Optimization and Control · Mathematics 2023-01-19 Manisha Malik , S. K. Gupta , Manuel Arana-Jiménez