Results 1 to 10 of about 6,320,699 (97)

performance: An R Package for Assessment, Comparison and Testing of Statistical Models

Journal of Open Source Software, 2021
A crucial part of statistical analysis is evaluating a model's quality and fit, or performance. During analysis, especially with regression models, investigating the fit of models to data also often involves selecting the best fitting model amongst many ...
D. Lüdecke, Mattan S. Ben-Shachar, Indrajeet Patil, Philip D. Waggoner, D. Makowski   +4 more
semanticscholar   +1 more source

antiSMASH 6.0: improving cluster detection and comparison capabilities

Nucleic Acids Res., 2021
Many microorganisms produce natural products that form the basis of antimicrobials, antivirals, and other drugs. Genome mining is routinely used to complement screening-based workflows to discover novel natural products.
K. Blin, S. Shaw, Alexander M. Kloosterman, Z. Charlop-Powers, G. P. Wezel, M. Medema, T. Weber   +6 more
semanticscholar   +1 more source

CheXpert: A Large Chest Radiograph Dataset with Uncertainty Labels and Expert Comparison [PDF]

AAAI Conference on Artificial Intelligence, 2019
Large, labeled datasets have driven deep learning methods to achieve expert-level performance on a variety of medical imaging tasks. We present CheXpert, a large dataset that contains 224,316 chest radiographs of 65,240 patients.
J. Irvin, Pranav Rajpurkar, M. Ko, Yifan Yu, Silviana Ciurea-Ilcus, Chris Chute, H. Marklund, Behzad Haghgoo, Robyn L. Ball, K. Shpanskaya, J. Seekins, D. Mong, S. Halabi, J. Sandberg, Ricky Jones, D. Larson, C. Langlotz, B. Patel, M. Lungren, A. Ng   +19 more
semanticscholar   +1 more source

Sensitivity of Chest CT for COVID-19: Comparison to RT-PCR

Radiology, 2020
In a series of 51 patients with chest CT and real-time polymerase chain reaction assay (RT-PCR) performed within 3 days, the sensitivity of CT for 2019 novel coronavirus infection was 98% and that ...
Yicheng Fang, Huangqi Zhang, Jicheng Xie, Minjie Lin, Lingjun Ying, P. Pang, W.-B. Ji   +6 more
semanticscholar   +1 more source

Comparison of Convenience Sampling and Purposive Sampling

, 2016
This article studied and compared the two nonprobability sampling techniques namely, Convenience Sampling and Purposive Sampling. Convenience Sampling and Purposive Sampling are Nonprobability Sampling Techniques that a researcher uses to choose a sample
I. Etikan, Sulaiman Abubakar Musa, Rukayya S. Alkassim   +2 more
semanticscholar   +1 more source

Improved tools for biological sequence comparison.

Proceedings of the National Academy of Sciences of the United States of America, 1988
We have developed three computer programs for comparisons of protein and DNA sequences. They can be used to search sequence data bases, evaluate similarity scores, and identify periodic structures based on local sequence similarity.
W. Pearson, D. Lipman
semanticscholar   +1 more source

A comparison of methods to test mediation and other intervening variable effects.

Psychological methods, 2002
A Monte Carlo study compared 14 methods to test the statistical significance of the intervening variable effect. An intervening variable (mediator) transmits the effect of an independent variable to a dependent variable. The commonly used R. M. Baron and
D. Mackinnon, C. Lockwood, J. Hoffman, S. West, V. Sheets   +4 more
semanticscholar   +1 more source

Measuring agreement in method comparison studies

Statistical Methods in Medical Research, 1999
Agreement between two methods of clinical measurement can be quantified using the differences between observations made using the two methods on the same subjects.
J. Bland, D. Altman
semanticscholar   +1 more source

Comparison of Multiobjective Evolutionary Algorithms: Empirical Results

Evolutionary Computation, 2000
In this paper, we provide a systematic comparison of various evolutionary approaches to multiobjective optimization using six carefully chosen test functions.
E. Zitzler, K. Deb, L. Thiele
semanticscholar   +1 more source

Quantifying biodiversity: procedures and pitfalls in the measurement and comparison of species richness

, 2001
Species richness is a fundamental measurement of community and regional diversity, and it underlies many ecological models and conservation strategies.
N. Gotelli, Robert K. Colwell
semanticscholar   +1 more source