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相关论文: Weighted and controlled frames

200 篇论文

Survey statisticians make use of the available auxiliary information to improve estimates. One important example is given by calibration estimation, that seeks for new weights that are close (in some sense) to the basic design weights and…

统计方法学 · 统计学 2014-05-23 M. Giovanna Ranalli , Antonio Arcos , Maria del Mar Rueda , Annalisa Teodoro

It is well-understood that the robustness of mechanical and robotic control systems depends critically on minimizing sensitivity to arbitrary application-specific details whenever possible. For example, if a system is defined and performs…

信号处理 · 电气工程与系统科学 2018-06-06 Bo Zhang , Jeffrey Uhlmann

We study randomized variants of two classical algorithms: coordinate descent for systems of linear equations and iterated projections for systems of linear inequalities. Expanding on a recent randomized iterated projection algorithm of…

最优化与控制 · 数学 2008-06-19 D. Leventhal , A. S. Lewis

In this paper, we obtain some new properties of weaving frames and present some conditions under which a family of frames is woven in Hilbert spaces. Some characterizations of weaving frames in terms of operators are given. We also give a…

泛函分析 · 数学 2019-01-08 Dongwei Li

In this paper we discuss some topics related to the general theory of frames. In particular we focus our attention to the existence of different 'reconstruction formulas' for a given vector of a certain Hilbert space and to some refinement…

funct-an · 数学 2008-02-03 Fabio Bagarello

In this work, we present a novel method for combining predictions of object detection models: weighted boxes fusion. Our algorithm utilizes confidence scores of all proposed bounding boxes to constructs the averaged boxes. We tested method…

计算机视觉与模式识别 · 计算机科学 2021-02-09 Roman Solovyev , Weimin Wang , Tatiana Gabruseva

In this article, we introduce a novel normalization technique for neural network weight matrices, which we term weight conditioning. This approach aims to narrow the gap between the smallest and largest singular values of the weight…

计算机视觉与模式识别 · 计算机科学 2026-03-16 Hemanth Saratchandran , Thomas X. Wang , Simon Lucey

Weighted model counting computes the sum of the rational-valued weights associated with the satisfying assignments for a Boolean formula, where the weight of an assignment is given by the product of the weights assigned to the positive and…

数值分析 · 数学 2025-08-11 Randal E. Bryant

We introduce a new approach for robotic manipulation tasks in human settings that necessitates understanding the 3D geometric connections between a pair of objects. Conventional end-to-end training approaches, which convert pixel…

机器人学 · 计算机科学 2024-05-22 Xuxin Cheng , Heng Yu , Harry Zhang , Wenxing Deng

Given a total sequence in a Hilbert space, we speak of an upper (resp. lower) semi-frame if only the upper (resp. lower) frame bound is valid. Equivalently, for an upper semi-frame, the frame operator is bounded, but has an unbounded…

数学物理 · 物理学 2012-10-12 J-P. Antoine , P. Balazs

Recently, fusion frames and frames for operators were considered as generalizations of frames in Hilbert spaces. In this paper, we generalize some of the known results in frame theory to fusion frames related to a linear bounded operator K…

泛函分析 · 数学 2021-12-10 Yuxiang Xu , Dongwei Li , Jinsong Leng

We present a post-training quantization algorithm with error estimates relying on ideas originating from frame theory. Specifically, we use first-order Sigma-Delta ($\Sigma\Delta$) quantization for finite unit-norm tight frames to quantize…

机器学习 · 计算机科学 2024-04-15 Wojciech Czaja , Sanghoon Na

Calibration weighting has been widely used to correct selection biases in non-probability sampling, missing data, and causal inference. The main idea is to calibrate the biased sample to the benchmark by adjusting the subject weights.…

统计方法学 · 统计学 2023-05-30 Chenyin Gao , Shu Yang , Jae Kwang Kim

A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in certain approaches or applications a description in terms of a finite overcomplete system of vectors, called a finite tight frame, may offer…

数学物理 · 物理学 2010-04-22 Nicolae Cotfas , Jean Pierre Gazeau

Approximately dual frames as a generalization of duality notion in Hilbert spaces have applications in Gabor systems, wavelets, coorbit theory and sensor modeling. In recent years, the computing of the associated deviations of the canonical…

泛函分析 · 数学 2019-05-02 M. Hajiabootorabi , H. Javanshiri , M. R. Mardanbeigi

Finite frame theory has become a powerful tool for many applications of mathematics. In this paper we introduce a new area of research in frame theory: Integer frames. These are frames having all integer coordinates with respect to a fixed…

泛函分析 · 数学 2015-10-26 Peter G. Casazza , Richard G. Lynch , Janet C. Tremain , Lindsey M. Woodland

We introduce a novel algorithm for the task of coherently controlling a quantum mechanical system to implement any chosen unitary dynamics. It performs faster than existing state of the art methods by one to three orders of magnitude…

量子物理 · 物理学 2015-06-04 Pierre de Fouquieres

Recent advances in deep learning have achieved impressive gains in classification accuracy on a variety of types of data, including images and text. Despite these gains, however, concerns have been raised about the calibration, robustness,…

机器学习 · 计算机科学 2018-11-20 Dallas Card , Michael Zhang , Noah A. Smith

Our main goal in this paper, is to generalize to Hilbert C*-modules the concept of fusion frames. Indeed we introduce the notion of *\~nfusion frames associated to weighted sequences of orthogonally complemented submodules of a Hilbert…

综合数学 · 数学 2023-08-22 Nadia Assila , Samir Kabbaj , Hicham Zoubeir

Weight-sharing is ubiquitous in deep learning. Motivated by this, we propose a "weight-sharing regularization" penalty on the weights $w \in \mathbb{R}^d$ of a neural network, defined as $\mathcal{R}(w) = \frac{1}{d - 1}\sum_{i > j}^d |w_i…

机器学习 · 计算机科学 2024-03-12 Mehran Shakerinava , Motahareh Sohrabi , Siamak Ravanbakhsh , Simon Lacoste-Julien