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sampling strategies

Optimized saturation recovery protocols for T1 mapping in the heart: influence of sampling strategies on precision

Optimized saturation recovery protocols for T1 mapping in the heart: influence of sampling strategies on precision

... Sampling strategies for saturation recovery methods for myocardial T1-mapping have been optimized and vali- dated experimentally. Improved precision may be achieved by using fixed saturation delays when ...

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Sampling Matters! An Empirical Study of Negative Sampling Strategies for Learning of Matching Models in Retrieval based Dialogue Systems

Sampling Matters! An Empirical Study of Negative Sampling Strategies for Learning of Matching Models in Retrieval based Dialogue Systems

... Negative sampling strategies have been studied in many machine learning ...pling strategies on the performance of link pre- diction in knowledge ...negative strategies to se- lect the most ...

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Carpenter ants use diverse antennae sampling strategies to track odor trails

Carpenter ants use diverse antennae sampling strategies to track odor trails

... antennae sampling used by ants is not inherent but rather context dependent, such that ants use different sampling strategies in different ...odor sampling on simple ...

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Sampling strategies for selecting general population comparison cohorts

Sampling strategies for selecting general population comparison cohorts

... following strategies for sampling comparison cohorts in matched cohort studies with respect to time to ischemic stroke and mortality: sampling without replacement in ran- dom order; sampling ...

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SOME SYSTEMATIC SAMPLING STRATEGIES USING MULTIPLE RANDOM STARTS

SOME SYSTEMATIC SAMPLING STRATEGIES USING MULTIPLE RANDOM STARTS

... a sampling-estimating strategy that minimizes the average mean square error or the variance where averaging is done with respect to the probability distribution of the underlying variables, namely, Y 1 , Y 2 , ...

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The Influence of Down Sampling Strategies on SVD Word Embedding Stability

The Influence of Down Sampling Strategies on SVD Word Embedding Stability

... The stability of word embedding algorithms, i.e., the consistency of the word representa- tions they reveal when trained repeatedly on the same data set, has recently raised concerns. We here compare word embedding ...

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Sampling strategies for biotope definition: minimal sampling area for selected groups of macroinvertebrates in the rocky subtidal of São Miguel, Azores

Sampling strategies for biotope definition: minimal sampling area for selected groups of macroinvertebrates in the rocky subtidal of São Miguel, Azores

... a sampling strategy with this kind of ...combine sampling strategies for algae and inverte- brates simultaneously in the same dive, and to minimize sampling effort, the area chosen for future ...

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A survey of potential sampling strategies for measurement of structured surfaces

A survey of potential sampling strategies for measurement of structured surfaces

... surface, sampling precision and efficiency can be improved. The adaptive sampling is such a ...advanced sampling strategies have been proposed in the past, especially in the last 20 ...

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New sampling strategies when searching for robust solutions

New sampling strategies when searching for robust solutions

... Abstract—Many real-world optimisation problems involve un- certainties, and in such situations it is often desirable to identify robust solutions that perform well over the possible future scenarios. In this paper, we ...

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Evaluation of sampling strategies to estimate crown biomass

Evaluation of sampling strategies to estimate crown biomass

... of sampling strategies have been carried out mainly for foliar biomass sampling rather than the total crown (branch wood, bark, and foliage) ...different sampling designs and sample size in ...

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The assessment of temperature and salinity sampling strategies in the Mediterranean Sea: idealized and real cases

The assessment of temperature and salinity sampling strategies in the Mediterranean Sea: idealized and real cases

... data sampling, although a desirable task, is in practice difficult to achieve due to financial and logistic ...of sampling strategies involving the collec- tion of temperature and salinity profiles ...

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Variability of snow depth at the plot scale: implications for mean depth estimation and sampling strategies

Variability of snow depth at the plot scale: implications for mean depth estimation and sampling strategies

... the sampling strategy became a relevant factor; snow depth esti- mates improved by maximizing the distance between sam- pling points within the plot and increasing the number of ...snow sampling should ...

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Sampling Strategies for Estimating Status and Cost of Watershed Management Policies

Sampling Strategies for Estimating Status and Cost of Watershed Management Policies

... This report explores relative efficiencies of altemative statistical sampling methods, sample sizes, and confidence intervals for estimating both the current status of management prac[r] ...

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Effect of conformation sampling strategies in genetic algorithm for multiple protein docking

Effect of conformation sampling strategies in genetic algorithm for multiple protein docking

... In this work, we analyzed the effect of the three para- meters in the GA optimization in Multi-LZerD, namely, the population size, whether to use the crossover opera- tion, and the threshold value in the structural ...

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Performance Analysis of Sorting Process with Different Sampling Strategies

Performance Analysis of Sorting Process with Different Sampling Strategies

... Abstract: Sorting data is one of the most important problems that play an important rule in many applications in operations research, computer science and many other applications. Many sorting algorithms are well studied ...

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Investigating temporal field sampling strategies for site specific calibration of three soil moisture–neutron intensity parameterisation methods

Investigating temporal field sampling strategies for site specific calibration of three soil moisture–neutron intensity parameterisation methods

... To identify the reasons for the relatively worse perfor- mance of the original solutions of HMF and COSMIC at RB and WB, we compared these with calibration solutions for which we used the same single days, but with our ...

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Counting Methods and Sampling Strategies Determining Pedestrian Numbers

Counting Methods and Sampling Strategies Determining Pedestrian Numbers

... Total Counts Temporal Distributions Sampling Periods Comparison of Manual and Video Data Expansion Factors for Manual and Video Data Validation by Survey Day Seasonal Variation Pedestria[r] ...

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Implementation of Association Methods for Less Constrained Sampling Strategies.

Implementation of Association Methods for Less Constrained Sampling Strategies.

... When parental data are missing, a likelihood-ratio test is implemented by using the expectation-maximization (EM) algorithm in incompletely genotyped triads (Weinberg, 1999b). Clayton (1999) proposed a likelihood ratio ...

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Accuracy and precision of variance components in occupational posture recordings: a simulation study of different data collection strategies

Accuracy and precision of variance components in occupational posture recordings: a simulation study of different data collection strategies

... for sampling strategies with larger block sizes, while they were not for strategies with block size 1, where observations will be (close to) unaffected by auto- ...by strategies where a ...

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CONTAMINATION OF ARSENIC IN DRINKING WATER IN AYEYARWADY DELTA REGION, MYANMAR

CONTAMINATION OF ARSENIC IN DRINKING WATER IN AYEYARWADY DELTA REGION, MYANMAR

... With comparable sampling strategies in both studies, we found almost double the proportion of wells that had high arsenic levels. Although this could imply that arsenic levels are getting worse over time, ...

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