搜索结果: 1-15 共查到“k-NN”相关记录63条 . 查询时间(0.046 秒)
中国科学院上海有机化学研究所专利：NN配体、NN配体铁络合物、晶体、制备方法及应用
中国科学院上海有机化学研究所 专利 NN配体 NN配体铁络合物 晶体
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2023/6/2
中国科学院上海有机化学研究所专利：NN配体、NN配体铁络合物、晶体、制备方法及应用
IMAGE LABELING FOR LIDAR INTENSITY IMAGE USING K-NN OF FEATURE OBTAINED BY CONVOLUTIONAL NEURAL NETWORK
Image labeling Convolutional neural network K-nearest neighbour and LIDAR intensity image
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2016/7/28
We propose an image labeling method for LIDAR intensity image obtained by Mobile Mapping System (MMS) using K-Nearest Neighbor (KNN) of feature obtained by Convolutional Neural Network (CNN). Image la...
本文提出基于高斯加权距离以及聚类重构机制的K-NN文本聚类算法。文章提出K-NN近邻域的概念,通过高斯加权的近邻域算法实施K-NN聚类。利用高斯函数根据样本与聚类中心的距离为样本赋权,计算聚类距离。基于近邻域权重和聚类密度对形成的聚类实施重构,实现聚类数目的自适应调整。使用拆分算子拆分稀疏聚类并调整异常样本;使用合并算子合并相似聚类。实验显示聚类重构机制能够有效地提高聚类的准确率及召回率,增加聚类...
ALTERNATIVE APPLICATION OF THE K-NN METHOD FOR MAPPING FOREST COVER TYPE
k Nearest Neighbour method forest types Landsat TM image classification
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2015/9/8
The present study explores the performance of a non parametric approach applied to the classification of forest types in an area of
Northern Italy (Province of Trentino). The investigation has been c...
Backstepping的船舶运动RBF-NN稳定性控制研究
船舶运动 Back-stepping RBF-NN 稳定性分析 控制系统
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2016/3/2
针对船舶运动的非线性模型,设计了一种船舶航迹稳定性控制算法。首先将被控系统分解成与系统阶数相同的子系统,然后利用Backstepping技术,分别为每个子系统设计虚拟控制律,迭代得出虚拟输入控制律,其中的非线性未知函数用RBF-NN逼近,随着迭代次数的增加利用一阶低通滤波器解决计算量膨胀问题。最后通过Lyapunov第二判断法分析验证控制系统的稳定性,基于MATLAB仿真试验,结果表明该方法能够实...
NN, N-DELTA COUPLINGS AND THE QUARK-MODEL
Quark model vector axis vector
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2014/12/23
We examine mass-corrected SU(6) symmetry predictions in the quark model relating vector, axial-vector, and strong NN and NΔ couplings, and demonstrate that the experimental NΔ value is significantly h...
Chiral symmetry and the parity-violating NN pi Yukawa coupling
Lagrange differential pv coupling constant the standard model
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2014/12/22
We construct the complete SU(2) parity-violating (PV) π,N,Δ interaction Lagrangian with one derivative, and calculate the chiral corrections to the PV Yukawa NNπ coupling constant hπ through O(1/Λχ3) ...
AN -> NN weak interaction in effective-field theory
A remote physical goldstein bosons decay rate asymmetry
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2014/12/20
The nonleptonic weak ∣ΔS∣=1 ΛN interaction, responsible for the dominant nonmesonic decay of all but the lightest hypernuclei, is studied in the framework of an effective-field theory. The long-range ...
一种k-NN分类器k值自动选取方法
分类 k-NN算法 近邻数 近邻数选取
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2014/3/3
k-NN 分类算法已广泛应用于文本挖掘和模式识别等领域, 其近邻数k直接影响着分类精度, k 值过小
时k-NN 会受到噪声的影响, k值过大时同样会降低分类精度, 为此提出一种快速选取k值的方法. 首先给出k 值的
候选集, 然后在候选集上快速地选取k 值. 在100 个公开数据集上的实验结果表明, 所提出的算法能够选取一个有效
的近邻数k 是一种效果好、有潜力的方法.
一种k-NN分类器k值自动选取方法
分类 k-NN算法 近邻数 近邻数选取
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2014/2/28
k-NN 分类算法已广泛应用于文本挖掘和模式识别等领域, 其近邻数k直接影响着分类精度, k 值过小时k-NN 会受到噪声的影响, k值过大时同样会降低分类精度, 为此提出一种快速选取k值的方法. 首先给出k 值的候选集, 然后在候选集上快速地选取k 值. 在100 个公开数据集上的实验结果表明, 所提出的算法能够选取一个有效的近邻数k 是一种效果好、有潜力的方法.
New Way to Produce Dense Double-Antikaonic Dibaryon System, \bar{K}\bar{K} NN, through Lambda(1405)-Doorway Sticking in p+p Collisions
Produce Dense Double-Antikaonic Dibaryon System
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2011/7/20
A recent successful observation of a dense and deeply bound \bar{K} nuclear system, K^-pp, in the p + p \rightarrow K^+ + K^-pp reaction in a DISTO experiment indicates that the double-\bar{K} dibaryo...
Relativistic Description of Finite Nuclei Based on Realistic $NN$ Interactions
$NN$ Interactions
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2011/7/20
A set of relativistic mean field models is constructed including the Hartree and Hartree-Fock approximation accounting for the exchange of isoscalar and isovector mesons as well as the pion.
Dielectron continuum production from $\sqrt{s_{NN}}$ = 200 GeV p + p and Au + Au collisions at STAR
Dielectron continuum production sqrt Au + Au collisions STAR
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2011/7/20
We present the first STAR dielectron measurement in 200 GeV p + p and Au + Au collisions. Results are compared to hadron decay cocktails to search for vector meson in-medium modification in low mass r...
Measurement of the nuclear modification factor of electrons from heavy-flavour decays at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV with ALICE
nuclear modification electrons heavy-flavour decays Pb-Pb collisions
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2011/7/21
We present results on inclusive electrons for 1.5 $ < p_{\rm T} < $ 6 GeV/$c$ in {Pb-Pb} collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV measured with ALICE at the LHC and compare these to a cocktail of ...
Anisotropic flow of charged particles at $\mathbf{\sqrt{s_{NN}} = 2.76}$ TeV measured with the ALICE detector
Anisotropic flow ALICE detector sqrt
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2011/7/21
Measurements of anisotropic flow in heavy-ion collisions provide evidence for the creation of strongly interacting matter which appears to behave as an almost ideal fluid. Anisotropic flow signals the...