搜索结果: 1-15 共查到“理学 sampling”相关记录113条 . 查询时间(0.14 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Direct sampling method to inverse wave-number-dependent source problems: determination of the support of a stationary source
反波数 相关源问题 直接采样 固定源
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2023/11/29
This talk is concerned with a direct sampling method for imaging the support of a frequency-dependent source term embedded in a homogeneous and isotropic medium. The source term is given by the Fourie...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Deep adaptive sampling for numerical PDEs
数值 偏微分方程 深度 自适应采样
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2023/5/15
Adaptive computation is of great importance in numerical simulations. The ideas for adaptive computations can be dated back to adaptive finite element methods in 1970s. In this talk, we shall first re...
昆明理工大学理学院概率论与数理统计课件Chapter 6 Random Sampling--Sampling Distributions
昆明理工大学理学院 概率论与数理统计 课件 Chapter 6 Random Sampling Sampling Distributions
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2017/4/17
昆明理工大学理学院概率论与数理统计课件Chapter 6 Random Sampling--Sampling Distributions.
昆明理工大学理学院概率论与数理统计课件Chapter 6 Random Sampling--Some Important Statistics
昆明理工大学理学院 概率论与数理统计 课件 Chapter 6 Random Sampling Some Important Statistics
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2017/4/17
昆明理工大学理学院概率论与数理统计课件Chapter 6 Random Sampling--Some Important Statistics.
昆明理工大学理学院概率论与数理统计课件Chapter 6 Random Sampling--Random Sampling
昆明理工大学理学院 概率论与数理统计 课件 Chapter 6 Random Sampling Random Sampling
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2017/4/17
昆明理工大学理学院概率论与数理统计课件Chapter 6 Random Sampling--Random Sampling.
Scalable Implementation of Boson Sampling with Trapped Ions
Scalable Implementation Boson Sampling Trapped Ions
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2016/1/22
Boson sampling solves a classically intractable problem by sampling from a probability distribution given by matrix permanents. We propose a scalable implementation of boson sampling using local trans...
Selective sampling during catastrophic disruption:Mapping the location of reaccumulated fragments in the original parent body
Asteroids Collisions Internal structure Gravitational reaccumulations
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2015/12/25
In this paper, we simulate numerically the catastrophic disruption of a large asteroid as a result of a collision with a smaller projectile and the subsequent reaccumulation of fragments as a result o...
Low-speed impact simulations into regolith in support of asteroid sampling mechanism design I:Comparison with 1-g experiments
Asteroids Surfaces Collisional physics Granular material Sampling mechanism Geological processes Regoliths
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2015/12/25
This study is carried out in the framework of sample-return missions to asteroids that use a low-speed projectile as the primary component of its sampling mechanism (e.g., JAXA’s Hayabusa and Hayabusa...
OPTIMAL BEAM PATTERN DESIGN FOR VERY LARGE SENSOR ARRAYS WITH SPARSE SAMPLING
OPTIMAL BEAM PATTERN DESIGN VERY LARGE SENSOR ARRAYS SPARSE SAMPLING
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2015/9/29
Consider a large scale sensor array having N sensors that monitors a surveillance area. Using all sensors simultaneously may be unreasonable in terms of power consumption and data processing.For examp...
Sampling and Estimation in Hidden Populations Using Respondent-Driven Sampling
Hidden Population Sampling
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2015/9/11
Sampling and Estimation in Hidden Populations Using Respondent-Driven Sampling。
EXTENSIONS OF RESPONDENT-DRIVEN SAMPLING: ANALYZING CONTINUOUS VARIABLES AND CONTROLLING FOR DIFFERENTIAL RECRUITMENT
RESPONDENT-DRIVEN SAMPLING DIFFERENTIAL RECRUITMENT
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2015/9/11
Respondent-driven sampling (RDS) is a network-based method
for sampling hidden and hard-to-reach populations that has been
shown to produce asymptotically unbiased population estimates
when its ass...
Seismic-induced accelerations detected by two parallel gravity meters in continuous recording with a high sampling rate at Etna volcano
gravimeters earthquakes seismic-induced effects gravity fluctuations resonance
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2015/9/1
We analyse a microgravity data set acquired from two spring LaCoste & Romberg gravity meters operated in parallel at the same site on Etna volcano (Italy) for about two months (August September 2005)....
A Method for Inferring Label Sampling Mechanisms in Semi-Supervised Learning
Inferring Label Sampling Mechanisms Semi-Supervised Learning
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2015/8/21
We consider the situation in semi-supervised learning, where the “label sampling” mechanism stochastically depends on the true response (as well as potentially on the features). We suggest a method of...
A Sketch-based Sampling Algorithm on Sparse Data
Random Sampling Sketches Data Sparsity
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2015/8/21
We propose a sketch-based sampling algorithm, which effectively exploits the data sparsity. Sampling methods have become popular in large-scale data mining and information retrieval, where high data s...
One Sketch For All:Theory and Application of Conditional Random Sampling
One Sketch For All Theory and Application Conditional Random Sampling
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2015/8/21
Conditional Random Sampling (CRS) was originally proposed for efficiently computing pairwise (l2, l1) distances, in static, large-scale, and sparse data. This study modifies the original CRS and exten...