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Discrete optimization is a central problem in artificial intelligence. The optimization of the aggregated cost of a network of cost functions arises in a variety of problems including (W)CSP, DCOP, as well as optimization in stochastic…

人工智能 · 计算机科学 2018-01-12 Ferdinando Fioretto , Enrico Pontelli , William Yeoh , Rina Dechter

We propose a fast algorithm for evaluating the moments of Bingham distribution. The calculation is done by piecewise rational approximation, where interpolation and Gaussian integrals are utilized. Numerical test shows that the algorithm…

数值分析 · 数学 2017-11-23 Yixiang Luo , Jie Xu , Pingwen Zhang

We develop a meta-algorithm that, given a polynomial (in one or more variables), and a prime p, produces a fast (logarithmic time) algorithm that takes a positive integer n and outputs the number of times each residue class modulo p appears…

组合数学 · 数学 2015-03-09 Shalosh B. Ekhad , N. J. A. Sloane , Doron Zeilberger

With the increasing popularity of deep learning in image processing, many learned lossless image compression methods have been proposed recently. One group of algorithms that have shown good performance are based on learned pixel-based…

图像与视频处理 · 电气工程与系统科学 2022-12-27 Fatih Kamisli

We propose a very fast and effective one-step restoring method for blurry face images. In the last decades, many blind deblurring algorithms have been proposed to restore latent sharp images. However, these algorithms run slowly because of…

计算机视觉与模式识别 · 计算机科学 2017-11-28 Lingxiao Wang , Yali Li , Shengjin Wang

In this paper, we consider spectral-collocation method base on Legendre-Gauss-Lobatto point. We present a computational method for solving a class of fractional integral equation of the second kind. Then based on Legendre-Gauss-Lobatto…

数值分析 · 数学 2019-07-16 A. Yousefi , S. Javadi , E. Babolian

Quantum Computing offers an entirely new way of doing computation governed by the rules of quantum mechanics like Superposition and Entanglement. These rules allow us to do computation over all the possible states simultaneously. Hence,…

量子物理 · 物理学 2021-07-08 Mohd. Hussain Mir , Harkirat Singh

Linear computation coding is concerned with the compression of multidimensional linear functions, i.e. with reducing the computational effort of multiplying an arbitrary vector to an arbitrary, but known, constant matrix. This paper…

信息论 · 计算机科学 2025-07-02 Hans Rosenberger , Johanna S. Fröhlich , Ali Bereyhi , Ralf R. Müller

We introduce 3D Moments, a new computational photography effect. As input we take a pair of near-duplicate photos, i.e., photos of moving subjects from similar viewpoints, common in people's photo collections. As output, we produce a video…

计算机视觉与模式识别 · 计算机科学 2022-05-13 Qianqian Wang , Zhengqi Li , David Salesin , Noah Snavely , Brian Curless , Janne Kontkanen

The increasing volume of data streams poses significant computational challenges for detecting changepoints online. Likelihood-based methods are effective, but a naive sequential implementation becomes impractical online due to high…

统计计算 · 统计学 2025-08-08 Liudmila Pishchagina , Gaetano Romano , Paul Fearnhead , Vincent Runge , Guillem Rigaill

Pixel diffusion models have recently regained attention for visual generation. However, training advanced pixel-space models from scratch demands prohibitive computational and data resources. To address this, we propose the Latent-to-Pixel…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Zhennan Chen , Junwei Zhu , Xu Chen , Jiangning Zhang , Jiawei Chen , Zhuoqi Zeng , Wei Zhang , Chengjie Wang , Jian Yang , Ying Tai

We present an improved algorithm for computing the $4$-edge-connected components of an undirected graph in linear time. The new algorithm uses only elementary data structures, and it is simple to describe and to implement in the pointer…

数据结构与算法 · 计算机科学 2021-08-20 Loukas Georgiadis , Giuseppe F. Italiano , Evangelos Kosinas

We present a scheme for fast environment light estimation from the RGBD appearance of individual objects and their local image areas. Conventional inverse rendering is too computationally demanding for real-time applications, and the…

计算机视觉与模式识别 · 计算机科学 2020-08-07 Xin Wei , Guojun Chen , Yue Dong , Stephen Lin , Xin Tong

For a linearly recurrent vector sequence P[n+1] = A(n) * P[n], consider the problem of calculating either the n-th term P[n] or L<=n arbitrary terms P[n_1],...,P[n_L], both for the case of constant coefficients A(n)=A and for a matrix A(n)…

符号计算 · 计算机科学 2007-05-23 Martin Ziegler

A new algorithms for computing discrete logarithms on elliptic curves defined over finite fields is suggested. It is based on a new method to find zeroes of summation polynomials. In binary elliptic curves one is to solve a cubic system of…

密码学与安全 · 计算机科学 2015-04-07 Igor Semaev

Lossy compression algorithms take advantage of the inherent limitations of the human eye and discard information that cannot be seen. In the present paper, a technique termed as Lossy Data Compression using Logarithm (LDCL) is proposed to…

信息论 · 计算机科学 2016-04-08 Vivek Kumar , Srijita Barthwal , Rishabh Kishore , Ruchika Saklani , Anuj Sharma , Sandeep Sharma

Low level image restoration is an integral component of modern artificial intelligence (AI) driven camera pipelines. Most of these frameworks are based on deep neural networks which present a massive computational overhead on resource…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Avisek Lahiri , Sourav Bairagya , Sutanu Bera , Siddhant Haldar , Prabir Kumar Biswas

In this paper, we present a new algorithm for fast, online 3D reconstruction of dynamic scenes using times of arrival of photons recorded by single-photon detector arrays. One of the main challenges in 3D imaging using single-photon lidar…

Considering efficiency, ultra-high-definition (UHD) low-light image restoration is extremely challenging. Existing methods based on Transformer architectures or high-dimensional complex convolutional neural networks often suffer from the…

图像与视频处理 · 电气工程与系统科学 2026-04-13 Xiaohan Wang , Chen Wu , Dawei Zhao , Guangwei Gao , Dianjie Lu , Guijuan Zhang , Linwei Fan , Xu Lu , Shuai Wu , Hang Wei , Zhuoran Zheng

We derive several numerical methods for designing optimized first-order algorithms in unconstrained convex optimization settings. Our methods are based on the Performance Estimation Problem (PEP) framework, which casts the worst-case…

最优化与控制 · 数学 2025-07-29 Yassine Kamri , Julien M. Hendrickx , François Glineur