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Robust Simulations and Significant Separations [article]

Lance Fortnow, Rahul Santhanam
2010 arXiv   pre-print
There is a significant separation of L from C if there is no robust simulation of L in C.  ...  and Williams, can be strengthened to significant separations, though in each case, an almost everywhere separation is unknown.  ...  To address all these issues, we describe a new notion of "robust simulation" and a corresponding notion of "significant separation".  ... 
arXiv:1012.2034v1 fatcat:vfwmhda34ncfjgxzica7wcxd3q

Robust Simulations and Significant Separations [chapter]

Lance Fortnow, Rahul Santhanam
2011 Lecture Notes in Computer Science  
There is a significant separation of L from C if there is no robust simulation of L ∈ C.  ...  notion of "significant separations".  ...  To address all these issues, we describe a new notion of "robust simulation" and a corresponding notion of "significant separation".  ... 
doi:10.1007/978-3-642-22006-7_48 fatcat:okkkx5sudrb5xc34fsf3uf5v44

Robust simulations and significant separations

Lance Fortnow, Rahul Santhanam
2017 Information and Computation  
There is a significant separation of L from C if there is no robust simulation of L ∈ C.  ...  notion of "significant separations".  ...  To address all these issues, we describe a new notion of "robust simulation" and a corresponding notion of "significant separation".  ... 
doi:10.1016/j.ic.2017.07.002 fatcat:q737uj4vojfiros42l6fjjlebm

Fast, robust DC and transient fault simulation for nonlinear analogue circuits

Z. R. Yang, M. Zwolinski
1999 Proceedings of the conference on Design, automation and test in Europe - DATE '99  
The algorithm has been successfully applied to both DC and transient analyses. A significant increase in the speed of analogue fault simulation has been obtained.  ...  A robust, fast algorithm for concurrent analogue fault simulation is presented in this paper.  ...  We conducted separate fault simulations and a concurrent fault simulation. The times of the separate fault simulations are listed in Table 1 .  ... 
doi:10.1145/307418.307498 fatcat:ds24aoh2mjbehac4qbbs35w72u

Node-failure robustness of inter-layer 3 networking with ID/Locator separation architecture

Hiroyuki Urabayashi, Miki Yamamoto, Tomohiko Yagyu
2013 IEICE Communications Express  
Our simulation results show that significant improvement of robustness can be obtained only with small number of vertical links going through multiple network planes.  ...  This inter-layer 3 networking brings several benefits in addition to routing table size improvement, e.g. improvement of shortest path and robustness.  ...  Acknowledgments This work was partly supported by National Institute of Information and Communications Technology (NICT) Japan.  ... 
doi:10.1587/comex.2.372 fatcat:7ghtgqe7orhmra2phzvdbta4dy

Bootstrap p-values reduce type 1 error of the robust rank-order test of difference in medians [article]

Nirvik Sinha
2020 arXiv   pre-print
The robust rank-order test (Fligner and Policello, 1981) was designed as an improvement of the non-parametric Wilcoxon-Mann-Whitney U-test to be more appropriate when the samples being compared have unequal  ...  This is especially true for low values of significance levels (< 5%).  ...  Simulation set 1 In this simulation set the sample pairs were drawn from the same distribution type (repeated for left-skewed and right-skewed distributions separately, see Table 1 ) with identical median  ... 
arXiv:2009.02362v1 fatcat:3q223htrobgkfcbfnbbklvvudm

Dynamic single and Dual Rail spin transfer torque look up tables with enhanced robustness under CMOS and MTJ process variations

Aliyar Attaran, Hassan Salmani, Houman Homayoun, Hamid Mahmoodi
2016 2016 IEEE 34th International Conference on Computer Design (ICCD)  
In this paper, we investigate the limitation of existing STT-LUT designs and propose two new circuit styles of designing STT-LUTs that offer higher performance and robustness compared to the conventional  ...  The proposed DDR scheme offers the best overall performance even when considering the state of the art Separated Precharge Sensing Amplifier and Separated Decoding schemes.  ...  PROPOSED STT-LUT DESIGN: DSR ROBUSTNESS ANALYSIS Simulation Setup The designs are simulated in a predictive 16nm CMOS process [5] with nominal supply voltage of 0.7V.  ... 
doi:10.1109/iccd.2016.7753300 dblp:conf/iccd/AttaranSHM16 fatcat:ys3yxgomffffbeum6o3zhn55ry

The superiority of the minimal spanning tree in percolation analyses of cosmological data sets

Suketu P. Bhavsar, Randall J. Splinter
1996 Monthly notices of the Royal Astronomical Society  
We apply these statistics to Particle-Mesh simulations of large-scale structure formation.  ...  The computer simulations were performed on the Convex Exemplar at the University of Kentucky. We also thank Oliver Sk6ellin and Bill Lahaise for helping with the MST and separation code.  ...  To make the comparisons more qualitative, we compute the Kolmogorov-Smimov (KS) statistic and significance level (Press et al. 1992 ) Table 1 .  ... 
doi:10.1093/mnras/282.4.1461 fatcat:akk5hc5n6zcxporv5xpkh3tlti

Southern Hemisphere Stationary Wave Response to Changes of Ozone and Greenhouse Gases

Lei Wang, Paul J. Kushner, Darryn W. Waugh
2013 Journal of Climate  
A suite of chemistry climate model simulations are examined to explore the underlying cause and the separate effects of anthropogenic forcing from ozone depleting substances (ODSs) and greenhouse gases  ...  In simulations with changing ODSs, this increase in amplitude is reproduced during the ozone depletion period and is reversed during the ozone recovery period.  ...  We acknowledge the modeling groups for making their simulations available for this analysis, the Chemistry-Climate Model Validation (CCMVal) Activity for WCRP's (World Climate Research Programme) SPARC  ... 
doi:10.1175/jcli-d-13-00160.1 fatcat:a3qehz2efbcqvk6uqgcsy2faki

Separation of the largest eigenvalues in eigenanalysis of genotype data from discrete subpopulations

Katarzyna Bryc, Wlodek Bryc, Jack W. Silverstein
2013 Theoretical Population Biology  
We present a mathematical model, and the corresponding mathematical analysis, that justifies and quantifies the use of principal component analysis of biallelic genetic marker data for a set of individuals  ...  . • We obtain K large eigenvalues in the presence of K subpopulations, justified by mathematical theory showing strong separation between the large eigenvalues corresponding to population structure and  ...  LD-pruning implemented in PLINK ) is a simple yet robust technique.  ... 
doi:10.1016/j.tpb.2013.08.004 pmid:23973732 pmcid:PMC3825268 fatcat:sl3qjqttdjfq5ht65nkwufgii4

Reliability of simulated robustness testing in fast liquid chromatography, using state-of-the-art column technology, instrumentation and modelling software

Róbert Kormány, Jenő Fekete, Davy Guillarme, Szabolcs Fekete
2014 Journal of Pharmaceutical and Biomedical Analysis  
The goal of this study was to evaluate the accuracy of simulated robustness testing using commercial modelling software (DryLab) and state-of-the-art stationary phases.  ...  Because the simulated robustness testing requires significantly less experimental work than the DoE based predictions, we think that robustness could now be investigated in the early stage of method development  ...  The reliability of this "early stage" simulated robustness approach was critically evaluated for real-life separations applying short narrow bore columns (50 × 2.1 mm) and fast separations.  ... 
doi:10.1016/j.jpba.2013.10.029 pmid:24252726 fatcat:vnhgmpi4xfdgrnv6y57yi37mtu

Convolution-variation separation method for efficient modeling of optical lithography

Shiyuan Liu, Xinjiang Zhou, Wen Lv, Shuang Xu, Haiqing Wei
2013 Optics Letters  
Optical image simulations for defocus and aberration variations with applications in robust inverse lithography technology and lens aberration metrology have demonstrated the main concept of the CVS method  ...  We propose a general method called convolution-variation separation (CVS) to enable efficient optical imaging calculations without sacrificing accuracy when simulating images for a wide range of process  ...  The significance of Eqs.  ... 
doi:10.1364/ol.38.002168 pmid:23811866 fatcat:5ywfhzbibjg3tme2dnga27ajhm

Application of Six Sigma Robust Optimization in Sheet Metal Forming

Y. Q. Li
2005 AIP Conference Proceedings  
reliability optimization and robust improvement.  ...  Numerical simulation technology and optimization method have been applied in sheet metal forming process to improve design quality and shorten design cycle.  ...  In order to predict defects and avoid time consuming in trial and error tryout procedure, numerical simulation and optimization method have been separately applied for decades.  ... 
doi:10.1063/1.2011323 fatcat:ywrennemazbinf67bhxax7hww4

Bias of using odds ratio estimates in multinomial logistic regressions to estimate relative risk or prevalence ratio and alternatives

Suzi Alves Camey, Vanessa Bielefeldt Leotti Torman, Vania Naomi Hirakata, Renan Xavier Cortes, Alvaro Vigo
2014 Cadernos de Saúde Pública  
This study aimed to present and discuss alternative methods to multinomial logistic regression based upon robust Poisson regression and the log-binomial model.  ...  The approaches were compared by simulating various possible scenarios.  ...  robust Poisson regressions and those estimated by the separate log-binomial models.  ... 
doi:10.1590/0102-311x00077313 pmid:24627010 fatcat:4wcterdo7jekzgjpfrr3he2ii4

Sigma-delta resolution enhancement for far-field acoustic source separation

Amin Fazel, Shantanu Chakrabartty
2008 Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing  
Many source separation algorithms fail to deliver robust performance when applied to signals recorded using highdensity microphone arrays where distance between sensor elements is much smaller than the  ...  Numerical experiments simulating far-field recording conditions demonstrate consistent improvements over a benchmark setup used for independent component analysis (ICA).  ...  Separation and localization of acoustic sources using micro/nano scale microphone arrays, however, poses a significant challenge due to fundamental limitations imposed by the physics of sound propagation  ... 
doi:10.1109/icassp.2008.4518010 dblp:conf/icassp/FazelC08 fatcat:wlinczrsjfchjjnlu3pxbxfjpy
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