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Bias correcting confidence intervals for a nearly common property

Daren B.H. Cline, Clifford H. Spiegelman
1991 Chemometrics and Intelligent Laboratory Systems  
Bias correcting confidence intervals for a nearly common property. Chemometrics and Intelligent Laboratory Systems, 11: 131-136. Confidence intervals are an important tool.  ...  Realistic confidence intervals account for both random errors and systematic errors (bias). We improve the usual method for combining random and systematic errors.  ...  When the sample size is 2 or 3 (a common Occurrence in one of the authors' experience) and the bias is large (M/u > 0.5) then the tail-approximation method is more accurate and produces shorter intervals  ... 
doi:10.1016/0169-7439(91)80060-4 fatcat:7u6jotuazjeijpahcydxfjkw2a

Scheduling with step-improving processing times

T.C. Edwin Cheng, Yong He, Han Hoogeveen, Min Ji, Gerhard J. Woeginger
2006 Operations Research Letters  
We consider the scheduling problem of minimizing the makespan on a single machine with step-improving job processing times around a common critical date.  ...  Theorem 3 Makespan minimization for jobs with step-improving processing times and a common critical date on a single machine possesses an FPTAS.  ...  Theorem 1 Makespan minimization for jobs with step-improving processing times and a common critical date on a single machine is NP-hard in the ordinary sense.  ... 
doi:10.1016/j.orl.2005.03.002 fatcat:4nh6guolu5hv7ocvm4uyazjvni

Identifying gene clusters by discovering common intervals in indeterminate strings

Daniel Doerr, Jens Stoye, Sebastian Böcker, Katharina Jahn
2014 BMC Genomics  
an (approximate) weak common interval pair.  ...  5 (approximate weak common intervals) Given two indeterminate strings Sand Tand a threshold δ ∈ N 0 , two intervals, [i, j] in Sand [k, l] in T, are approximate weak common intervals with common character  ... 
doi:10.1186/1471-2164-15-s6-s2 pmid:25571793 pmcid:PMC4274641 fatcat:eolhntpuzbhsja3eou26qcjudu

Potential of GPS Common Clock Single-differences for Deformation Monitoring

Steffen Schön, Hue Kiem Pham, Tobias Kersten, Julia Leute, Andreas Bauch
2016 Journal of Applied Geodesy  
However, for a kinematic analysis, i. e. for estimating high rate coordinate time series, the situation can be significantly improved if a common clock is connected to different GNSS receivers in a network  ...  Real data from baselines at the Physikalisch-Technische Bundesanstalt campus at Braunschweig where receivers are connected over 290 m via an optical fiber link to a common clock was analysed.  ...  All further clock modeling intervals leads to improvements in between.  ... 
doi:10.1515/jag-2015-0029 fatcat:dgwp2b7mlncnvmkkmky6gxsg4i

Research on Genetic Algorithm and Data Information based on Combined Framework for Nonlinear Functions Optimization

Zhigang Ji, Zhenyu Li, Zhiqiang Ji
2011 Procedia Engineering  
The technology is based on the balance between the approximate precision and simplified, and improves the approximate Linear A minimum number of department.  ...  The technology has been successfully applied in some common nonlinear function.  ...  With the increase of the number of the cluster, improve the approximation observation.  ... 
doi:10.1016/j.proeng.2011.11.2482 fatcat:47tsfb4serf7lmhpzlq5yut6oq

Quality-of-life results used to endorse changes in standard of care for recurrent platinum-sensitive ovarian cancer

Dana M Chase, Lari B Wenzel, Bradley J Monk
2012 Expert review of pharmacoeconomics & outcomes research  
As curative intent is less common after relapse, patients and doctors argue for improving quality-oflife (QoL) outcomes when therapies are selected.  ...  Indeed, the improved PFS seen in this study did not translate into an improvement in overall  ...  (improved) with therapy [1] .  ... 
doi:10.1586/erp.12.22 pmid:22812551 pmcid:PMC4920474 fatcat:ep24swu7prhx5mvjubxpb3eo4y


Paola Bonizzoni, Gianluca Della Vedova, Giancarlo Mauri
2000 International Journal of Foundations of Computer Science  
The Maximum Isomorphic Agreement Subtree (MIT) problem is one of the simplest versions of the Maximum Interval Weight Agreement Subtree method (MIWT) which is used to compare phylogenies.  ...  In this paper, the approximation complexity of the MIT problem is investigated, showing that it cannot be approximated in polynomial time within factor log δ n for any δ > 0 unless NP ⊆ DTIME(2 polylog  ...  Afterwards successive improvements have appeared in literature [4, 12, 15] .  ... 
doi:10.1142/s0129054100000363 fatcat:ptacmyb5irhmhgryc3i4bvjuyy

Fast Algorithm for Vectorcardiogram and Interbeat Intervals Analysis: Application for Premature Ventricular Contractions Classification

Irena Jekova, Vessela Krasteva
2005 Bioautomation  
step for VCG loop approximation.  ...  The statistical assessment of the proposed VCG and RR interval parameters showed distinguishing distributions for N and PVC beats.  ...  Another action towards results improvement is the use of smaller step for VCG loop approximation, which however is associated with large VCG matrixes and more heavy computation procedures.  ... 
doaj:313824e6b52d454691b4212a5bfca556 fatcat:7dizz56mobafpdhswoafrryc2a

Weighted empirical likelihood inference for multiple samples

Yuejiao Fu, Xiaogang Wang, Changbao Wu
2009 Journal of Statistical Planning and Inference  
We show that the proposed method can ideally be applied to the common mean problem and problems with related samples.  ...  Simulation studies show that the weighted empirical likelihood confidence intervals perform better than existing ones.  ...  We thank the editor, the associate editor and two anonymous referees for constructive comments and suggestions which lead to improved presentation of the paper.  ... 
doi:10.1016/j.jspi.2008.07.015 fatcat:z5eywtr6vrgzhlenirrcwgka74

They Are Not Monozygotic Twins ― Long QT Syndrome Type 1 (LQT1) and Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT) ―

Hiroshi Morita
2018 Circulation Journal  
However, exercise-induced syncope is a common feature in both CPVT and LQT1.  ...  The prognosis of CPVT is very poor and approximately 40% of patients die within 10 years of the diagnosis. 8 Beta-blockers and calcium antagonists improve the prognosis but cannot prevent sudden death.  ...  The prognosis of CPVT is very poor and approximately 40% of patients die within 10 years of the diagnosis. 8 Beta-blockers and calcium antagonists improve the prognosis but cannot prevent sudden death  ... 
doi:10.1253/circj.cj-18-0810 pmid:30089744 fatcat:avaaki5xsrbwxlfch4vuxxfwi4

On the inapproximability of the exemplar conserved interval distance problem of genomes

Zhixiang Chen, Richard H. Fowler, Bin Fu, Binhai Zhu
2007 Journal of combinatorial optimization  
This result implies that the exemplar conserved interval distance problem does not admit any approximation in polynomial time, unless P = NP .  ...  Second, we strengthen the first result under a weaker definition of approximation, called weak approximation.  ...  In this paper, We have improved the linear factor lower bound on weak approximation to a super-linear factor m 1.5 . Research in this paper is supported in part by  ... 
doi:10.1007/s10878-007-9077-1 fatcat:4sfsxmccmzhgtkjal2dbll2kle

Critical review and comparison of continuity correction methods: The normal approximation to the binomial distribution

Takeshi Emura, Yu-Ting Liao
2017 Communications in statistics. Simulation and computation  
We provide a comprehensive and critical review of Yates' continuity correction for the normal approximation to the binomial distribution, in particular emphasizing its poor ability to approximate extreme  ...  In addition, we demonstrate how Yates'continuity correction is used to improve the coverage probability of binomial confidence limits, and propose new confidence limits by applying Cressie's continuity  ...  Acknowledgments We thank the reviewer for his/her constructive suggestions about confidence intervals for binomial proportion.  ... 
doi:10.1080/03610918.2017.1341527 fatcat:sw2jmhgmd5gudopyxsxaft6yly

Page 98 of Biometrics Vol. 10, Issue 1 [page]

1954 Biometrics  
HlOMin'KU'S, MAlK'll 195» ‘JS when sampling terminates, the eontidenee interval is taken to be (y.v - y, Vs + zO- where a* denotes the common population variance.  ...  Then the true confidence coefficient for the calculated interval is approximately 0.255<„v;( <J (5) provided v is large (and provided that N is in no case allowed to be less than 3).  ... 

Page 125 of American Society of Civil Engineers. Collected Journals Vol. 124, Issue 3 [page]

1998 American Society of Civil Engineers. Collected Journals  
The Simpson-based methods improve the approximation of the ground surface by considering a second-degree polynomial in each direction of the grid (Easa 1988; Chambers 1989).  ...  The trapezoidal method, which is the most common, approximates the ground surface of each grid cell by a plane and computes the volume as the product of the area of the cell and the average excavation  ... 

Approximation Algorithms for 3-D Common Substructure Identification in Drug and Protein Molecules [chapter]

Samarjit Chakraborty, Somenath Biswas
1999 Lecture Notes in Computer Science  
These improvements consist of using randomization, and/or an approximate maximum matching scheme for bipartite graphs.  ...  In the latter case, we improve the known approximation ratio for this class of algorithms, while keeping the time complexity unchanged.  ...  Algorithms with Improved Approximation Ratio In this section shall we make use of the algorithm LCP-ROT to improve the approximation ratio of the algorithms presented in Section 2.  ... 
doi:10.1007/3-540-48447-7_26 fatcat:nii4c3q7evgmxm6xydlpbjicny
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