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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A novel and faster quantum-inspired algorithm for solving linear systems
线性系统 新颖 量子衍生算法
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2023/4/17
In this talk, we introduce a modified classical algorithm to solve linear systems in a model that resembles the QRAM used by quantum linear solvers. Specifically, we demonstrate that for the linear sy...
Brown mathematicians’ algorithm to serve as cryptography standard for quantum computing era（图）
算法 量子计算 密码学标准
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2023/6/26
The federal government selected four algorithms to serve as standards for public key security in the pending era of quantum computers, three of which are based on technology devised by a team of Brown...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：An overlapping domain decomposition splitting algorithm for stochastic NLS equation
随机NLS方程 重叠域 分解拆分 非线性薛定谔方程
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2023/4/24
In this talk, we will introduce a novel overlapping domain decomposition splitting algorithm based on a Crank--Nisolson method is developed for the stochastic NLS equation driven by a multiplicative n...
Algorithm breakthrough may lead to new applications for quantum computers（图）
Algorithm breakthrough new applications quantum computers
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2020/12/11
Researchers led by City College of New York physicist Pouyan Ghaemi report the development of a quantum algorithm with the potential to study a class of many-electron quantum systems using q...
ALGORITHM AND APPLICATION OF GCP-INDEPENDENT BLOCK ADJUSTMENT FOR SUPER LARGE-SCALE DOMESTIC HIGH RESOLUTION OPTICAL SATELLITE IMAGERY
Rational Function Model (RFM) Virtual Control Points Least-squares Block Adjustment Alternating Direction Method Geometric Constraints of Horizontal and Vertical
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2018/5/15
The accurate positioning of optical satellite image without control is the precondition for remote sensing application and small/medium scale mapping in large abroad areas or with large-scale images. ...
A THRESHOLD-FREE FILTERING ALGORITHM FOR AIRBORNE LIDAR POINT CLOUDS BASED ON EXPECTATION-MAXIMIZATION
Airborne LiDAR Point clouds Filtering Ground points Expectation-maximization Intensity
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2018/5/14
Filtering is a key step for most applications of airborne LiDAR point clouds. Although lots of filtering algorithms have been put forward in recent years, most of them suffer from parameters setting o...
Researchers Develop Algorithm to 3D Print Vibrational Sounds
Researchers 3D Print Vibrational Sounds
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2015/11/12
In creating what looks to be a simple children’s musical instrument—a xylophone with keys in the shape of zoo animals—computer scientists at Columbia Engineering, Harvard, and MIT have demonstrated th...
A MORPHOLOGICAL RECONSTRUCTION ALGORITHM FOR SEPARATING OFF-TERRAIN POINTS FROM TERRAIN POINTS IN LASER SCANNING DATA
LIDAR morphological reconstruction terrain points off-terrain points DTM
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2015/8/13
During the last decade various techniques have been proposed to extract the ground surface from airborne LIDAR data. The basic
problem is the separation of terrain points from off-terrain points whi...
MULTISPECTRAL LANDSAT IMAGES CLASSIFICATION USING A DATA CLUSTERING ALGORITHM
Multispectral Image Classification Networks Fuzzy Logic
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2015/7/29
This paper presents a new application of a data-clustering algorithm in Landsat image classification, which improves on
conventional classification methods. Neural networks have been widely used in ...
BAYESIAN-BASED DESPECKLING IN WAVELET DOMAIN USING “A TROUS” ALGORITHM
Transformation Estimation SAR, Radar Statistics Multiresolution.
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2015/7/29
In this paper an improved speckle noise reduction method is presented based on wavelet transform. A 2D Gaussian function is found
to be the best model fitted to the speckle noise pattern cross-secti...
A DNA ALGORITHM FOR THE BATIMETRIC MAPPING IN THE LAGOON OF VENICE USING QUICKBIRD MULTISPECTRAL DATA
Remote Sensing Bathymetry Mapping High resolution
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2015/7/29
During the last decade, several studies have focused on the use of passive multispectral remote sensing to derive the bathymetry in
coastal zone. In particular, data acquired with the SPOT and the L...
ORIENTATION SPECTRUM ALGORITHM DEVELOPMENT
Shape Analysis Mathematical Morphology Maragos Pattern Spectra
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2015/5/21
A morphological orientation spectra is proposed. This spectrum describes basic directions of shape parts. Fast discrete-continuous
algorithm for computing orientation spectrum is presented. It is bas...
Superfluid-Insulator Transition in Commensurate Disordered Bosonic Systems: Large-Scale Worm Algorithm Simulations
Monte carlo simulation insulator dynamics
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2014/12/20
We report results of large-scale Monte Carlo simulations of superfluid-insulator transitions in disordered commensurate 2D bosonic systems. In the off-diagonal disorder case, we find that the transiti...
Worm Algorithm for Continuous-Space Path Integral Monte Carlo Simulations
Integral monte carlo method the worm simulation lattice model the continuous spatial multibody system thermodynamics
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2014/12/20
We present a new approach to path integral Monte Carlo (PIMC) simulations based on the worm algorithm, originally developed for lattice models and extended here to continuous-space many-body systems. ...
Worm algorithm and diagrammatic Monte Carlo: A new approach to continuous-space path integral Monte Carlo simulations
Worm algorithm quantum multibody system thermodynamic properties continuous space
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2014/12/20
A detailed description is provided of a new worm algorithm, enabling the accurate computation of thermodynamic properties of quantum many-body systems in continuous space, at finite temperature. The a...