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Accuracy on the Line: On the Strong Correlation Between Out-of-Distribution and In-Distribution Generalization [article]

John Miller, Rohan Taori, Aditi Raghunathan, Shiori Sagawa, Pang Wei Koh, Vaishaal Shankar, Percy Liang, Yair Carmon, Ludwig Schmidt
2021 arXiv   pre-print
Specifically, we demonstrate strong correlations between in-distribution and out-of-distribution performance on variants of CIFAR-10 & ImageNet, a synthetic pose estimation task derived from YCB objects  ...  In this paper, we empirically show that out-of-distribution performance is strongly correlated with in-distribution performance for a wide range of models and distribution shifts.  ...  Such scenarios motivate our study of the correlation between in-distribution and out-of-distribution generalization in this paper.  ... 
arXiv:2107.04649v2 fatcat:ty44g72ypvdrzbhehftgpsdrja

The Effects of Alcohol Intoxication on Accuracy and the Confidence-Accuracy Relationship in Photographic Simultaneous Line-ups

Heather D. Flowe, Melissa F. Colloff, Nilda Karoğlu, Katarzyna Zelek, Hannah Ryder, Joyce E. Humphries, Melanie K.T. Takarangi
2017 Applied Cognitive Psychology  
We would like to thank the anonymous reviewers who provided valuable comments on previous versions of this paper.  ...  ACKNOWLEDGEMENTS This research was funded by a grant from the Economic and Social Research Council.  ...  To investigate this issue in the context of line-ups, in the present study, we controlled for alcohol expectancy and assessed its effect on accuracy and the confidence-accuracy relationship.  ... 
doi:10.1002/acp.3332 pmid:28781426 pmcid:PMC5519942 fatcat:yu4uusvddzgxxk4ykz5x4csv6i

ON THE ACCURACY OF WEAK-LENSING CLUSTER MASS RECONSTRUCTIONS

Matthew R. Becker, Andrey V. Kravtsov
2011 Astrophysical Journal  
Such a calibration exercise needs to be carried out for each specific weak lensing mass estimation method, as the details of the method determine in part the expected scatter and bias.  ...  uncorrelated large-scale matter projections along the line-of-sight.  ...  We would like to thank Jeremy Tinker for supplying his halo finder code and Anatoly Klypin for providing us the simulation used in this study.  ... 
doi:10.1088/0004-637x/740/1/25 fatcat:mfn2jxtpb5htpfledkokllexoe

The effects of classifiers diversity on the accuracy of stacking

Mariele Lanes, Eduardo Borges, Renata Galante
2017 Proceedings of the 29th International Conference on Software Engineering and Knowledge Engineering  
The results revealed connections between some measures and the gain of stacking, but they imply a weak or moderate relationship that suggest predicting the improvement on the best base classifier accuracy  ...  The main goal of this paper is to evaluate the effects of classifier diversity on the accuracy of stacking.  ...  Thus, even low accuracy classifiers combined can generate a strong classifier, providing gain for stacking.  ... 
doi:10.18293/seke2017-016 dblp:conf/seke/LanesBG17 fatcat:h34havdhrnh4leenkllvudljou

Influence of Static Magnetic Field Stimulation on the Accuracy of Tachystoscopically Presented Line Bisection

Hikari Kirimoto, Tatsunori Watanabe, Nami Kubo, Shota Date, Toru Sunagawa, Tatsuya Mima, Katsuya Ogata, Hisato Nakazono, Shozo Tobimatsu, Antonio Oliviero
2020 Brain Sciences  
Nine out of 16 subjects misjudged pre-bisected lines by consistently underestimating the length of the right-side segment (judging lines to be exactly pre-bisected when the transector was located to the  ...  Visual stimuli consisted of symmetrically or asymmetrically transected lines, tachystoscopically presented for 150 ms on a computer monitor.  ...  At each trial, one of five lines was presented, differing in the position of the vertical transector (at midpoint, rightward, or leftward) and in the overall length of the line and of its right and left  ... 
doi:10.3390/brainsci10121006 pmid:33352946 fatcat:4dn3ol6wfnaqbbes4cxuz2wz3e

On the Accuracy of Language Trees

Simone Pompei, Vittorio Loreto, Francesca Tria, Matjaz Perc
2011 PLoS ONE  
In order to assess the accuracy of the inferred trees we introduce and characterize two generalizations of standard definitions of distances between trees.  ...  Finally we draw some conclusions about where the accuracy of the reconstructions in historical linguistics stands and about the leading directions to improve it.  ...  At the same time the authors wish to thank Simon J. Greenhill for having granted the permission of using the ABVD database. Author Contributions  ... 
doi:10.1371/journal.pone.0020109 pmid:21674034 pmcid:PMC3108590 fatcat:ps4ew6g2qbdkvbdqe52ixtbx7a

On the effect of curved streamlines on the accuracy of PIV vector fields

Sven Scharnowski, Christian J. Kähler
2012 Experiments in Fluids  
This article derives a method to estimate and correct the bias error of the shift vector's absolute length in the presence of curved streamlines.  ...  The approach is very general and can be applied to any vector field obtained from window-correlation particle image velocimetry (PIV), single-pixel ensemble-correlation PIV, particle tracking velocimetry  ...  Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s)  ... 
doi:10.1007/s00348-012-1435-9 fatcat:d7uig6dxdjhl3at4us77fuucee

On the accuracy of schedule-based GTFS for measuring accessibility

Nate Wessel, Steven Farber
2019 Journal of Transport and Land Use  
In this paper we assess the accuracy with which General Transit Feed Specification (GTFS) schedule data can be used to measure accessibility by public transit as it varies over space and time.  ...  Such over-and under-predictions exhibit strong spatial patterns which should be of concern to those using accessibility metrics in statistical models.  ...  While there is a positive correlation between the two lines for both origins (r ≈ .2), it rather seems to be the case that On the accuracy of schedule-based GTFS for measuring accessibility  with a  ... 
doi:10.5198/jtlu.2019.1502 fatcat:r623roijdnbrzcgikkubhalhju

On establishing the accuracy of noise tomography travel-time measurements in a realistic medium

Victor C. Tsai
2009 Geophysical Journal International  
This property has been derived assuming that the energy in normal modes is uncorrelated and perfectly equipartitioned, or that the distribution of noise sources is uniform in space and the waves measured  ...  in previous derivations do not hold for dispersive surface waves on the Earth.  ...  in the 2-D isotropic case, unlike the 3-D isotropic case where the sensitivity is strong away from the station-station line.  ... 
doi:10.1111/j.1365-246x.2009.04239.x fatcat:qqwsxt7iqzghznttbqor66wevy

Positional Accuracy of Spatial Data: Non-Normal Distributions and a Critique of the National Standard for Spatial Data Accuracy

Paul A Zandbergen
2008 Transactions on GIS  
The non-normal distribution of positional errors in spatial data has implications for spatial data accuracy standards and error propagation modeling.  ...  Existing spatial data accuracy standards, including the National Standard for Spatial Data Accuracy (NSSDA) used in the United States, commonly assume the positional error of spatial data is normally distributed  ...  An exception is Wilson (2006) who argues that the distribution can be approximated by a bivariate normal distribution with no correlation between the two variables; only a slice in any direction will  ... 
doi:10.1111/j.1467-9671.2008.01088.x fatcat:ehh6el5xmjcrvhg6kkdvvla63y

100% Classification Accuracy Considered Harmful: The Normalized Information Transfer Factor Explains the Accuracy Paradox

Francisco J. Valverde-Albacete, Carmen Peláez-Moreno, Matteo G. A. Paris
2014 PLoS ONE  
We are then able to obtain the entropy-modulated accuracy (EMA), a pessimistic estimate of the expected accuracy with the influence of the input distribution factored out, and the normalized information  ...  We show how the EMA and the NIT factor reject rankings based in accuracy, choosing more meaningful and interpretable classifiers.  ...  Bousoñ o and the anonymous reviewers for comments on previous versions of this paper. Author Contributions  ... 
doi:10.1371/journal.pone.0084217 pmid:24427282 pmcid:PMC3888391 fatcat:lfumaezsnfg6tmvbaoxwjf4qm4

Research on the accuracy and speed of threedimensional reconstruction of liver surface based on binocular structured light

Xin Zhang, Long Chen, Fengfeng Zhang, Lining Sun
2021 IEEE Access  
ACKNOWLEDGMENT The authors extend their gratitude to Soochow University Robotics and Microsystems Control Center. The authors would  ...  There is no correlation between the speed of 3D reconstruction of the liver surface in the three respiratory states.  ...  In section III, the calibration experiment of binocular system and the accuracy and speed of 3D reconstruction of liver surface based on respiratory platform are carried out.  ... 
doi:10.1109/access.2020.3048953 fatcat:at4teqilancn7p25wcwvuk3suq

Evaluation of Parameterized Quantum Circuits: on the relation between classification accuracy, expressibility and entangling capability [article]

Thomas Hubregtsen, Josef Pichlmeier, Patrick Stecher, Koen Bertels
2020 arXiv   pre-print
We find a strong correlation between the ability of the circuit to uniformly address the Hilbert space and the achieved classification accuracy for circuits that entail a single embedding layer followed  ...  In our work, we use methods and quantifications from prior art to perform a numerical study in order to evaluate the level of correlation.  ...  Acknowledgements The authors would like to thank Sukin Sim for providing the data points in Table 5 and valuable feedback; Nicola Pancotti and Christoph Segler for providing feedback on our statistical  ... 
arXiv:2003.09887v2 fatcat:zxjegip6dzbydltqdlrfn42hw4

On the Accuracy of Influence Functions for Measuring Group Effects [article]

Pang Wei Koh, Kai-Siang Ang, Hubert H. K. Teo, Percy Liang
2019 arXiv   pre-print
Our theoretical analysis shows that such strong correlation arises only under certain settings and need not hold in general, indicating that real-world datasets have particular properties that allow the  ...  In this paper, we find that across many different types of groups and for a range of real-world datasets, the predicted effect (using influence functions) of a group correlates surprisingly well with its  ...  PWK was supported by the Facebook Fellowship Program.  ... 
arXiv:1905.13289v2 fatcat:iqxxon3w4vagvozy6y3qzxyv7i

On the forecasting accuracy of multivariate GARCH models

Sébastien Laurent, Jeroen V. K. Rombouts, Francesco Violante
2011 Journal of applied econometrics  
This paper addresses the question of the selection of multivariate GARCH models in terms of variance matrix forecasting accuracy with a particular focus on relatively large scale problems.  ...  We consider 10 assets from the NYSE and compare 125 model based one, five and twenty-day ahead conditional variance forecasts over a period of 10 years using the Model Confidence Set (MCS) and the Superior  ...  The interaction between the two effects is particularly strong for the calm period.  ... 
doi:10.1002/jae.1248 fatcat:cuf76qwpibbjrfwgfxxveyb7gm
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