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This paper proposes a hierarchical adaptive sampling scheme for passivity characterization of large-scale linear lumped macromodels. Here, large-scale is intended both in terms of dynamic order and especially number of input/output ports.…

计算工程、金融与科学 · 计算机科学 2020-11-06 Marco De Stefano , Stefano Grivet-Talocia , Torben Wendt , Cheng Yang , Christian Schuster

A path tracking algorithm that adaptively adjusts precision is presented. By adjusting the level of precision in accordance with the numerical conditioning of the path, the algorithm achieves high reliability with less computational cost…

数值分析 · 数学 2007-05-23 Daniel J. Bates , Andrew J. Sommese , Charles W. Wampler

We present a novel, real-time algorithm to track the trajectory of each pedestrian in moderately dense crowded scenes. Our formulation is based on an adaptive particle-filtering scheme that uses a combination of various multi-agent…

计算机视觉与模式识别 · 计算机科学 2014-09-17 Aniket Bera , David Wolinski , Julien Pettré , Dinesh Manocha

Maneuvering target tracking is a challenging problem for sensor systems because of the unpredictability of the targets' motions. This paper proposes a novel data-driven method for learning the dynamical motion model of a target.…

信号处理 · 电气工程与系统科学 2022-11-28 Mengwei Sun , Mike E. Davies , Ian K. Proudler , James R. Hopgood

An AI-powered quality engineering platform uses artificial intelligence to boost software quality assessments through automated defect prediction and optimized performance alongside improved feature extraction. Existing models result in…

人工智能 · 计算机科学 2025-03-21 Seshu Babu Barma , Mohanakrishnan Hariharan , Satish Arvapalli

We propose a parametric sampling strategy for the reduction of large-scale PDE systems with multidimensional input parametric spaces by leveraging models of different fidelity. The design of this methodology allows a user to adaptively…

Programs with high levels of complexity often face challenges in adjusting execution parameters, particularly when these parameters vary based on the execution context. These dynamic parameters significantly impact the program's…

分布式、并行与集群计算 · 计算机科学 2024-06-18 Joao B. Fernandes , Felipe H. S. da Silva , Samuel Xavier-de-Souza , Italo A. S. Assis

We provide a method to identify system parameters of dynamical systems, called ID-ODE -- Inference by Differentiation and Observing Delay Embeddings. In this setting, we are given a dataset of trajectories from a dynamical system with…

机器学习 · 计算机科学 2022-11-17 Alex Tong Lin , Adrian S. Wong , Robert Martin , Stanley J. Osher , Daniel Eckhardt

Segment anything model (SAM) has demonstrated excellent generalizability in common vision scenarios, yet falling short of the ability to understand specialized data. Recently, several methods have combined parameter-efficient techniques…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Yiran Song , Qianyu Zhou , Xuequan Lu , Zhiwen Shao , Lizhuang Ma

We develop an advanced mean field method for approximating averages in probabilistic data models that is based on the TAP approach of disorder physics. In contrast to conventional TAP, where the knowledge of the distribution of couplings…

无序系统与神经网络 · 物理学 2009-11-07 Manfred Opper , Ole Winther

Simulation parameter settings such as contact models and object geometry approximations are critical to training robust robotic policies capable of transferring from simulation to real-world deployment. Previous approaches typically…

机器人学 · 计算机科学 2023-10-03 Allen Z. Ren , Hongkai Dai , Benjamin Burchfiel , Anirudha Majumdar

For robots to be useful outside labs and specialized factories we need a way to teach them new useful behaviors quickly. Current approaches lack either the generality to onboard new tasks without task-specific engineering, or else lack the…

Two established approaches to engineer adaptive systems are architecture-based adaptation that uses a Monitor-Analysis-Planning-Executing (MAPE) loop that reasons over architectural models (aka Knowledge) to make adaptation decisions, and…

软件工程 · 计算机科学 2021-03-22 Danny Weyns , Bradley Schmerl , Masako Kishida , Alberto Leva , Marin Litoiu , Necmiye Ozay , Colin Paterson , Kenji Tei

In this paper, a self-adaptive contractive (SAC) algorithm is proposed for enhanced dynamic phasor estimation in the diverse operating conditions of modern power systems. At a high-level, the method is composed of three stages: parameter…

信号处理 · 电气工程与系统科学 2019-05-01 Francisco Messina , Pablo Marchi , Leonardo Rey Vega , Cecilia Galarza

Reconstructing PDE solutions from sparse observations is a core challenge in scientific computing. We present FM4PDE, a flow-matching generative framework that learns the joint distribution of PDE coefficients (or initial states) and…

机器学习 · 统计学 2026-05-26 Xifeng Zhang , Jin Zhao

The normalized subband adaptive filter (NSAF) is widely accepted as a preeminent adaptive filtering algorithm because of its efficiency under the colored excitation. However, the convergence rate of NSAF is slow. To address this drawback,…

信息论 · 计算机科学 2017-03-20 Lu Lu , Haiquan Zhao

The generalized approximate message passing (GAMP) algorithm is an efficient method of MAP or approximate-MMSE estimation of $x$ observed from a noisy version of the transform coefficients $z = Ax$. In fact, for large zero-mean i.i.d…

信息论 · 计算机科学 2015-08-11 Jeremy Vila , Philip Schniter , Sundeep Rangan , Florent Krzakala , Lenka Zdeborova

Partial Differential Equations (PDEs) are fundamental tools for modeling physical phenomena, yet most PDEs of practical interest cannot be solved analytically and require numerical approximations. The feasibility of such numerical methods,…

数值分析 · 数学 2025-12-03 Juan Esteban Suarez Cardona , Holger Boche , Gitta Kutyniok

Tracking-by-detection algorithms are widely used for visual tracking, where the problem is treated as a classification task where an object model is updated over time using online learning techniques. In challenging conditions where an…

计算机视觉与模式识别 · 计算机科学 2017-08-04 Xiaofei Du , Alessio Dore , Danail Stoyanov

Non-autonomous differential equations are crucial for modeling systems influenced by external signals, yet fitting these models to data becomes particularly challenging when the signals change abruptly. To address this problem, we propose a…

机器学习 · 计算机科学 2025-07-10 Hyeontae Jo , Krešimir Josić , Jae Kyoung Kim