1,078,163 Hits in 4.0 sec

Designing Types for R, Empirically

Alexi, Aviral, Filip, Jan
2020 Zenodo  
The starting point for our work are the twin questions: what expressive power is needed to accurately type R code? and which type system is the R community willing to adopt?  ...  As a starting point, we infer type signatures for 25,215 functions from 412 packages among the most widely used open source R libraries.  ...  Introduction This is the artifact for the OOPSLA 2020 paper Designing Types for R, Empirically.  ... 
doi:10.5281/zenodo.4037277 fatcat:gpajluduifehhjomst3nkud5be

Autocorrelation effect on type I error rate of Revusky´s Rn test

Sierra V., Quera V., Solanas A
2000 Psicológica  
A corrected R n statistic was proposed to reach a reasonable fit between theoretical (exact) and empirical Type I error rates.  ...  Monte Carlo simulation was used to determine how violation of the independence assumption affects the empirical probability distribution and Type I error rates of Revusky's R n statistical test.  ...  the exact Type I error rate described above for the two design sizes).  ... 
doaj:ed411a148eb34e70ab59323dbf838148 fatcat:7jjda3fltfdbddp5r67tnbyhzu

Experimental study of hydraulic engine mounts using multiple inertia tracks and orifices: Narrow and broad band tuning concepts

Benjamin Barszcz, Jason T. Dreyer, Rajendra Singh
2012 Journal of Sound and Vibration  
Refined linear time-invariant models of fixed decoupler-type designs are developed to critically assess the dynamic stiffness measurements and to explore a family of alternate designs.  ...  Three narrowband devices are investigated for accurately predicting the frequencies corresponding to peak loss angles for the first time, in addition to examining and validating an n ¼ 3 track mount.  ...  Science Foundation Industry/University Cooperative Research Centers program ( for supporting this work.  ... 
doi:10.1016/j.jsv.2012.07.001 fatcat:kg5oa45r35cofo4cx7r5tsbzne

A Heteroscedastic, Rank-Based Approach for Analyzing 2 x 2 Independent Groups Designs

Laura Mills, Robert A. Cribbie, Wei-Ming Luh
2009 Journal of Modern Applied Statistical Methods  
Results suggest that the ANOVA F is not appropriate when assumptions of normality and variance homogeneity are violated, and that the Welch/Johansen on ranks offers the best balance of empirical Type I  ...  A Monte Carlo investigation compared Type I error and power rates of the ANOVA F, Alexander-Govern with trimmed means and Johnson transformation, Welch-James with trimmed means and Johnson Transformation  ...  It is hypothesized that the W r will be such a procedure, following the findings of Cribbie, et al. (2007) for one-way designs.  ... 
doi:10.22237/jmasm/1241137800 fatcat:oj4jvrl7qrbmrldxyow3av72bm

Statistical Assessment of Biosimilarity based on the Relative Distance between Follow-on Biologics in the (k+ 1)-Arm Parallel Design

Seung-Ho Kang, Wooyoung Shin
2015 Communications for Statistical Applications and Methods  
Type I error rates and powers were investigated both theoretically and empirically.  ...  The three-arm parallel design consists of two arms for the reference product and one arm for the biosimilar product.  ...  Similarly, the empirical powers are also computed. Table 1 displays asymptotic and empirical type I error rates at n 1 = 100 and n 1 = 200, respectively.  ... 
doi:10.5351/csam.2015.22.6.605 fatcat:t34xvwc4afekniy63y3ynfeqfq

The Personnel Economics Approach to Public Workforce Research

Michael Gibbs
2009 Journal of Public Health Management and Practice  
PE has evolved on this foundation to a strong practical emphasis, with theoretical insights designed for practical use and with strong focus on empirical research.  ...  The types of datasets that personnel economists use are described. If similar datasets can be obtained for public sector workforces, PE should be a very useful approach for studying them.  ...  A fourth type of data that PE researchers have used is surveys that they design and send to a set of firms. This provides for data across firms, but tends to lack the depth of personnel records.  ... 
doi:10.1097/phh.0b013e3181b3a4c6 pmid:19829236 fatcat:axhrbrxkfzdnzdnhfwpp7qag3u

Statistical tests for biosimilarity based on relative distance between follow-on biologics for ordinal endpoints

Myung Soo Yoo, Donguk Kim
2020 Communications for Statistical Applications and Methods  
This paper extends existing design for ordinal endpoints. Using measure of nominal-ordinal association and relative distances between drugs are defined so that testing procedures are developed.  ...  Through simulation studies, we investigate type I error rate and power to show the performance of our suggested method.  ...  For the empirical type I error rate, random samples under null hypothesis are generated according to sample size.  ... 
doi:10.29220/csam.2020.27.1.001 fatcat:vrubbt2g2fddjdx3laewvwvw4u

Page 96 of American Water Works Association. Journal Vol. 45, Issue 2 [page]

1953 American Water Works Association. Journal  
Write for your copy today. ... andthe EMPIRE TYPE 14 AN ALL-BRONZE METER FOR WARM CLIMATES Especially designed for use below the frost belt.  ...  96 P&R JOURNAL AWWA Vol. 45, No.2 The Symbol for Service, Quality and Performance in Water Meters ROCKWELL EMPIRE TYPE 12 METER The First Meter to be fully FROST, PROTECTED INTERNALLY HERE’S HOW IT WORKS  ... 

Research contribution in human-computer interaction

Jacob O. Wobbrock, Julie A. Kientz
2016 Interactions  
ACKNOWLEDGMENTS We thank Frank Bentley, Jofish Kaye, and James Fogarty for their feedback on early drafts.  ...  Contribution types for CHI 2006-2008. Authors also submitted a 30-word contributions and benefits statement. . Contribution types for CHI 2016.I N T E R A C T I O N S .  ...  An important difference from Wobbrock's original list was that the empirical contribution type was split in two, one for studies of systems and one for studies of people.  ... 
doi:10.1145/2907069 fatcat:btszh7begnczjkppthxwthge6y

Ultimate Compressive Strength of Stiffened Panel: An Empirical Formulation for Flat-Bar Type

Do Kyun Kim, Su Young Yu, Hui Ling Lim, Nak-Kyun Cho
2020 Journal of Marine Science and Engineering  
The outcome obtained will be useful for ship structural designers in predicting the ultimate strength performance of flat-bar type stiffened panel under longitudinal compression.  ...  The ultimate strength behaviours obtained were used as data for the development of closed form shape empirical formulation.  ...  • In addition, other types of stiffener (angle-bar type) should also be studied to develop the empirical formulation.  ... 
doi:10.3390/jmse8080605 fatcat:ovs3ggdipncg5gckzprkdwecvq

Targeting the Optimal Design in Randomized Clinical Trials with Binary Outcomes and No Covariate: Simulation Study

Antoine Chambaz, Mark J. van der Laan
2011 The International Journal of Biostatistics  
In addition, it shows in the testing framework that type I error control at the prescribed level is guaranteed and that all sampling procedures only suffer from a very slight increase of the type II error  ...  It notably shows in the estimation framework that the confidence intervals we obtain achieve the desired coverage even for moderate sample sizes.  ...  This is in agreement with the empirical validation of the central limit theorem for g ⋆ n -adaptive design, but not for g a n -adaptive design.  ... 
doi:10.2202/1557-4679.1310 fatcat:ujkdxjhfuvbbzh27y5tzjz46xu

Software Metrics Validation Methodologies in Software Engineering

K.P. Srinivasan, T. Devi
2014 International Journal of Software Engineering & Applications  
In most cases, theoretical and empirical validations are conducted for software metrics validations in software engineering .  ...  This paper discusses the validation methodology, techniques and different properties of measures that are used for software metrics validation.  ...  There are two types of validations for validating software metrics: "theoretical" and "empirical" validations. These two types of software metrics validations are given in Figure 1 .  ... 
doi:10.5121/ijsea.2014.5606 fatcat:ujnxlx5pbbezjlivwtfz52l6fu

A CIN-like TCP transcription factor (LsTCP4) having retrotransposon insertion associates with a shift from Salinas type to Empire type in crisphead lettuce (Lactuca sativa L.)

Kousuke Seki, Kenji Komatsu, Keisuke Tanaka, Masahiro Hiraga, Hiromi Kajiya-Kanegae, Hideo Matsumura, Yuichi Uno
2020 Horticulture Research  
In a field cultivation test of Empire type (serrated leaf) and Salinas type (wavy leaf) cultivars, Empire type cultivars showed increased tipburn susceptibility and late bolting compared with Salinas type  ...  We attempted genetic mapping of leaf shape and bolting time by ddRAD-seq using the F2 population derived from a cross between 'VI185' (Empire type) and 'ShinanoGreen' (Salinas type).  ...  the Genome Research for BioResource, NODAI Genome Research Center, Tokyo University of Agriculture for K.S. and K.K., Grant-in-Aid for Scientific Research for K.K., MEXT-Supported Program for the Strategic  ... 
doi:10.1038/s41438-020-0241-4 pmid:32025318 pmcid:PMC6994696 fatcat:v7socuekwngzzm5mqgqewvfjxu

Optical Modeling Analysis of Red, Green, and Yellow Phosphors with a Blue LED

Wen-Shing Sun, Chuen-Lin Tien
2018 Advances in Condensed Matter Physics  
The simulation and experimental results provide a cross-reference for better packaging and encapsulating designs for lumen improvement.  ...  A comparison of the four types of LED package modules tested shows that the yellow phosphor encapsulated with a semispherical module takes up a lesser percentage of the total weight percentage of a constructed  ...  The weights were 1.24 mg for the dispensing type, 0.42 mg for the conformal type, 1.97 mg for the remote type, and 0.24 mg for the semispherical type, as shown in Figure 15 .  ... 
doi:10.1155/2018/5716259 fatcat:w2kfu3go3bfv5cwqlgzor3iowa

Design and Statistical Analysis of Pooled Next Generation Sequencing for Rare Variants

Tao Wang, Chang-Yun Lin, Yuanhao Zhang, Ruofeng Wen, Kenny Ye
2012 Journal of Probability and Statistics  
Our results also provide guidelines for designing an efficient pooled.  ...  However, several key issues need to be addressed for pooled NGS.  ...  Testing for Multiple Variants Type I Error Rate The empirical type I error rate at a significant level of 0.05 for testing association of multiple rare variants is shown in Table 3 .  ... 
doi:10.1155/2012/524724 fatcat:rcjvknlduzasxpoxvd576a4zxe
« Previous Showing results 1 — 15 out of 1,078,163 results