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10,700 | Dynamical Equilibrium, trajectories study in an economical system. The case of the labor market | stat.AP | The paper deals with the study of labor market dynamics, and aims to
characterize its equilibriums and possible trajectories. The theoretical
background is the theory of the segmented labor market. The main idea is that
this theory is well adapted to interpret the observed trajectories, due to the
heterogeneity of the ... | statistics |
10,701 | Missing Data: A Comparison of Neural Network and Expectation Maximisation Techniques | stat.AP | The estimation of missing input vector elements in real time processing
applications requires a system that possesses the knowledge of certain
characteristics such as correlations between variables, which are inherent in
the input space. Computational intelligence techniques and maximum likelihood
techniques do possess... | statistics |
10,702 | An Integrated Human-Computer System for Controlling Interstate Disputes | stat.AP | In this paper we develop a scientific approach to control inter-country
conflict. This system makes use of a neural network and a feedback control
approach. It was found that by controlling the four controllable inputs:
Democracy, Dependency, Allies and Capability simultaneously, all the predicted
dispute outcomes coul... | statistics |
10,703 | Mixed models for longitudinal left-censored repeated measures | stat.AP | Longitudinal studies could be complicated by left-censored repeated measures.
For example, in Human Immunodeficiency Virus infection, there is a detection
limit of the assay used to quantify the plasma viral load. Simple imputation of
the limit of the detection or of half of this limit for left-censored measures
biases... | statistics |
10,704 | Finite Element Model Updating Using Bayesian Approach | stat.AP | This paper compares the Maximum-likelihood method and Bayesian method for
finite element model updating. The Maximum-likelihood method was implemented
using genetic algorithm while the Bayesian method was implemented using the
Markov Chain Monte Carlo. These methods were tested on a simple beam and an
unsymmetrical H-s... | statistics |
10,705 | Evaluating Throwing Ability in Baseball | stat.AP | We present a quantitative analysis of throwing ability for major league
outfielders and catchers. We use detailed game event data to tabulate success
and failure events in outfielder and catcher throwing opportunities. We
attribute a run contribution to each success or failure which are tabulated for
each player in eac... | statistics |
10,706 | Modeling Hourly Ozone Concentration Fields | stat.AP | This paper presents a dynamic linear model for modeling hourly ozone
concentrations over the eastern United States. That model, which is developed
within an Bayesian hierarchical framework, inherits the important feature of
such models that its coefficients, treated as states of the process, can change
with time. Thus ... | statistics |
10,707 | Controlling for individual heterogeneity in longitudinal models, with applications to student achievement | stat.AP | Longitudinal data tracking repeated measurements on individuals are highly
valued for research because they offer controls for unmeasured individual
heterogeneity that might otherwise bias results. Random effects or mixed models
approaches, which treat individual heterogeneity as part of the model error
term and use ge... | statistics |
10,708 | M-estimation of Boolean models for particle flow experiments | stat.AP | Probability models are proposed for passage time data collected in
experiments with a device designed to measure particle flow during aerial
application of fertilizer. Maximum likelihood estimation of flow intensity is
reviewed for the simple linear Boolean model, which arises with the assumption
that each particle req... | statistics |
10,709 | Does heterosexual transmission drive the HIV/AIDS epidemic in Sub-Saharan Africa (or elsewhere)? | stat.AP | A two-sex Basic Reproduction Number (BRN) is used to investigate the
conditions under which the Human Immunodeficiency Virus (HIV) may spread
through heterosexual contacts in Sub-Saharan Africa. (The BRN is the expected
number of new infections generated by one infected individual; the disease
spreads if the BRN is lar... | statistics |
10,710 | Application of probabilistic PCR5 Fusion Rule for Multisensor Target Tracking | stat.AP | This paper defines and implements a non-Bayesian fusion rule for combining
densities of probabilities estimated by local (non-linear) filters for tracking
a moving target by passive sensors. This rule is the restriction to a strict
probabilistic paradigm of the recent and efficient Proportional Conflict
Redistribution ... | statistics |
10,711 | An iterative tomogravity algorithm for the estimation of network traffic | stat.AP | This paper introduces an iterative tomogravity algorithm for the estimation
of a network traffic matrix based on one snapshot observation of the link loads
in the network. The proposed method does not require complete observation of
the total load on individual edge links or proper tuning of a penalty parameter
as exis... | statistics |
10,712 | A representative sampling plan for auditing health insurance claims | stat.AP | A stratified sampling plan to audit health insurance claims is offered. The
stratification is by dollar amount of the claim. The plan is representative in
the sense that with high probability for each stratum, the difference in the
average dollar amount of the claim in the sample and the average dollar amount
in the po... | statistics |
10,713 | Data selection and confounding in the court case of Lucia de Berk | stat.AP | The nurse Lucia de Berk was convicted by the Dutch courts as a serial killer
with 7 murders and 3 attempts at murder in three hospitals where she worked.
The nurse however always professed her innocence and indeed was never observed
in such an act of murder. The courts based their decision on circumstantial
evidence an... | statistics |
10,714 | Applied statistics: A review | stat.AP | The main phases of applied statistical work are discussed in general terms.
The account starts with the clarification of objectives and proceeds through
study design, measurement and analysis to interpretation. An attempt is made to
extract some general notions. | statistics |
10,715 | A correlated topic model of Science | stat.AP | Topic models, such as latent Dirichlet allocation (LDA), can be useful tools
for the statistical analysis of document collections and other discrete data.
The LDA model assumes that the words of each document arise from a mixture of
topics, each of which is a distribution over the vocabulary. A limitation of
LDA is the... | statistics |
10,716 | Coupling hidden Markov models for the discovery of Cis-regulatory modules in multiple species | stat.AP | Cis-regulatory modules (CRMs) composed of multiple transcription factor
binding sites (TFBSs) control gene expression in eukaryotic genomes.
Comparative genomic studies have shown that these regulatory elements are more
conserved across species due to evolutionary constraints. We propose a
statistical method to combine... | statistics |
10,717 | A statistical approach to simultaneous mapping and localization for mobile robots | stat.AP | Mobile robots require basic information to navigate through an environment:
they need to know where they are (localization) and they need to know where
they are going. For the latter, robots need a map of the environment. Using
sensors of a variety of forms, robots gather information as they move through
an environment... | statistics |
10,718 | Random-set methods identify distinct aspects of the enrichment signal in gene-set analysis | stat.AP | A prespecified set of genes may be enriched, to varying degrees, for genes
that have altered expression levels relative to two or more states of a cell.
Knowing the enrichment of gene sets defined by functional categories, such as
gene ontology (GO) annotations, is valuable for analyzing the biological
signals in micro... | statistics |
10,719 | Elevated soil lead: Statistical modeling and apportionment of contributions from lead-based paint and leaded gasoline | stat.AP | While it is widely accepted that lead-based paint and leaded gasoline are
primary sources of elevated concentrations of lead in residential soils,
conclusions regarding their relative contributions are mixed and generally
study specific. We develop a novel nonlinear regression for soil lead
concentrations over time. It... | statistics |
10,720 | Of mice and men: Sparse statistical modeling in cardiovascular genomics | stat.AP | In high-throughput genomics, large-scale designed experiments are becoming
common, and analysis approaches based on highly multivariate regression and
anova concepts are key tools. Shrinkage models of one form or another can
provide comprehensive approaches to the problems of simultaneous inference that
involve implici... | statistics |
10,721 | Control of the mean number of false discoveries, Bonferroni and stability of multiple testing | stat.AP | The Bonferroni multiple testing procedure is commonly perceived as being
overly conservative in large-scale simultaneous testing situations such as
those that arise in microarray data analysis. The objective of the present
study is to show that this popular belief is due to overly stringent
requirements that are typica... | statistics |
10,722 | Spatial variation of total column ozone on a global scale | stat.AP | The spatial dependence of total column ozone varies strongly with latitude,
so that homogeneous models (invariant to all rotations) are clearly unsuitable.
However, an assumption of axial symmetry, which means that the process model is
invariant to rotations about the Earth's axis, is much more plausible and
considerab... | statistics |
10,723 | A resampling-based test to detect person-to-person transmission of infectious disease | stat.AP | Early detection of person-to-person transmission of emerging infectious
diseases such as avian influenza is crucial for containing pandemics. We
developed a simple permutation test and its refined version for this purpose. A
simulation study shows that the refined permutation test is as powerful as or
outcompetes the c... | statistics |
10,724 | Probabilistic projections of HIV prevalence using Bayesian melding | stat.AP | The Joint United Nations Programme on HIV/AIDS (UNAIDS) has developed the
Estimation and Projection Package (EPP) for making national estimates and
short-term projections of HIV prevalence based on observed prevalence trends at
antenatal clinics. Assessing the uncertainty about its estimates and
projections is importan... | statistics |
10,725 | A multivariate semiparametric Bayesian spatial modeling framework for hurricane surface wind fields | stat.AP | Storm surge, the onshore rush of sea water caused by the high winds and low
pressure associated with a hurricane, can compound the effects of inland
flooding caused by rainfall, leading to loss of property and loss of life for
residents of coastal areas. Numerical ocean models are essential for creating
storm surge for... | statistics |
10,726 | MOST: detecting cancer differential gene expression | stat.AP | We propose a new statistics for the detection of differentially expressed
genes, when the genes are activated only in a subset of the samples. Statistics
designed for this unconventional circumstance has proved to be valuable for
most cancer studies, where oncogenes are activated for a small number of
disease samples. ... | statistics |
10,727 | Estimation of Missing Data Using Computational Intelligence and Decision Trees | stat.AP | This paper introduces a novel paradigm to impute missing data that combines a
decision tree with an auto-associative neural network (AANN) based model and a
principal component analysis-neural network (PCA-NN) based model. For each
model, the decision tree is used to predict search bounds for a genetic
algorithm that m... | statistics |
10,728 | Timescale effect estimation in time-series studies of air pollution and health: A Singular Spectrum Analysis approach | stat.AP | A wealth of epidemiological data suggests an association between
mortality/morbidity from pulmonary and cardiovascular adverse events and air
pollution, but uncertainty remains as to the extent implied by those
associations although the abundance of the data. In this paper we describe an
SSA (Singular Spectrum Analysis... | statistics |
10,729 | Panel and Pseudo-Panel Estimation of Cross-Sectional and Time Series Elasticities of Food Consumption: The Case of American and Polish Data | stat.AP | The problem addressed in this article is the bias to income and expenditure
elasticities estimated on pseudo-panel data caused by measurement error and
unobserved heterogeneity. We gauge empirically these biases by comparing
cross-sectional, pseudo-panel and true panel data from both Polish and American
expenditure sur... | statistics |
10,730 | Decomposition of variance in terms of conditional means | stat.AP | We test against two different sets of data an apparently new approach to the
analysis of the variance of a numerical variable which depends on qualitative
characters. We suggest that this approach be used to complement other existing
techniques to study the interdependence of the variables involved. According to
our me... | statistics |
10,731 | Reliability of Module Based Software System | stat.AP | This paper consider the problem of determining the reliability of a software
system which can be decomposed in a number of modules. We have derived the
expression of the reliability of a system using the Markovian model for the
transfer of control between modules in order. We have given the expression of
reliability by... | statistics |
10,732 | Problems of Testology | stat.AP | Some problems of testology are discussed. | statistics |
10,733 | Interference Cancelation in Coherent CDMA Systems Using Parallel Iterative Algorithms | stat.AP | Least mean square-partial parallel interference cancelation (LMS-PPIC) is a
partial interference cancelation using adaptive multistage structure in which
the normalized least mean square (NLMS) adaptive algorithm is engaged to obtain
the cancelation weights. The performance of the NLMS algorithm is mostly
dependent to ... | statistics |
10,734 | Interference Cancelation in Non-coherent CDMA Systems Using Parallel Iterative Algorithms | stat.AP | Parallel least mean square-partial parallel interference cancelation
(PLMS-PPIC) is a partial interference cancelation which employs adaptive
multistage structure. In this algorithm the channel phases for all users are
assumed to be known. Having only their quarters in (0,2\pi), a modified version
of PLMS-PPIC is propo... | statistics |
10,735 | Full MIMO Channel Estimation Using A Simple Adaptive Partial Feedback Method | stat.AP | Partial feedback in multiple-input multiple-output (MIMO) communication
systems provides tremendous capacity gain and enables the transmitter to
exploit channel condition and to eliminate channel interference. In the case of
severely limited feedback, constructing a quantized partial feedback is an
important issue. To ... | statistics |
10,736 | Attrition and Non-Response in Panel Data: The Case of the Canadian Survey of Labor and Income Dynamics | stat.AP | This paper provides an analysis of the effects of attrition and non-response
on employment and wages using the Canadian Survey of Labour and Income
Dynamics. We consider a structural model composed of three freely correlated
equations for nonattrition/response, employment and wages. The model is
estimated using microda... | statistics |
10,737 | How to evaluate the calibration of a disease risk prediction tool | stat.AP | To evaluate the calibration of a disease risk prediction tool, the quantity
$E/O$, i.e., the ratio of the expected number of events to the observed number
of events, is generally computed. However, because of censoring, or more
precisely because of individuals who drop out before the termination of the
study, this quan... | statistics |
10,738 | Estimating exposure response functions using ambient pollution concentrations | stat.AP | This paper presents an approach to estimating the health effects of an
environmental hazard. The approach is general in nature, but is applied here to
the case of air pollution. It uses a computer model involving ambient pollution
and temperature inputs, to simulate the exposures experienced by individuals in
an urban ... | statistics |
10,739 | Pattern recognition on random trees associated to protein functionality families | stat.AP | In this paper, we address the problem of identifying protein functionality
using the information contained in its aminoacid sequence. We propose a method
to define sequence similarity relationships that can be used as input for
classification and clustering via well known metric based statistical methods.
In our exampl... | statistics |
10,740 | Residual-based localization and quantification of peaks in x-ray diffractograms | stat.AP | We consider data consisting of photon counts of diffracted x-ray radiation as
a function of the angle of diffraction. The problem is to determine the
positions, powers and shapes of the relevant peaks. An additional difficulty is
that the power of the peaks is to be measured from a baseline which itself must
be identif... | statistics |
10,741 | MCMC Inference for a Model with Sampling Bias: An Illustration using SAGE data | stat.AP | This paper explores Bayesian inference for a biased sampling model in
situations where the population of interest cannot be sampled directly, but
rather through an indirect and inherently biased method. Observations are
viewed as being the result of a multinomial sampling process from a tagged
population which is, in t... | statistics |
10,742 | Comparison of Spline with Kriging in an Epidemiological Problem | stat.AP | There are various methods to analyze different kinds of data sets. Spatial
data is defined when data is dependent on each other based on their respective
locations. Spline and Kriging are two methods for interpolating and predicting
spatial data. Under certain conditions, these methods are equivalent, but in
practice t... | statistics |
10,743 | A practical illustration of the importance of realistic individualized treatment rules in causal inference | stat.AP | The effect of vigorous physical activity on mortality in the elderly is
difficult to estimate using conventional approaches to causal inference that
define this effect by comparing the mortality risks corresponding to
hypothetical scenarios in which all subjects in the target population engage in
a given level of vigor... | statistics |
10,744 | Editorial: Statistics and forensic science | stat.AP | Forensic science is usually taken to mean the application of a broad spectrum
of scientific tools to answer questions of interest to the legal system.
Despite such popular television series as CSI: Crime Scene Investigation and
its spinoffs--CSI: Miami and CSI: New York--on which the forensic scientists
use the latest ... | statistics |
10,745 | The rarity of DNA profiles | stat.AP | It is now widely accepted that forensic DNA profiles are rare, so it was a
surprise to some people that different people represented in offender databases
are being found to have the same profile. In the first place this is just an
illustration of the birthday problem, but a deeper analysis must take into
account depen... | statistics |
10,746 | Interpretation of interaction: A review | stat.AP | Several different types of statistical interaction are defined and
distinguished, primarily on the basis of the nature of the factors defining the
interaction. Illustrative examples, mostly epidemiological, are given. The
emphasis is primarily on interpretation rather than on methods for detecting
interactions. | statistics |
10,747 | The pigeonhole bootstrap | stat.AP | Recently there has been much interest in data that, in statistical language,
may be described as having a large crossed and severely unbalanced random
effects structure. Such data sets arise for recommender engines and information
retrieval problems. Many large bipartite weighted graphs have this structure
too. We woul... | statistics |
10,748 | A statistical analysis of memory CD8 T cell differentiation: An application of a hierarchical state space model to a short time course microarray experiment | stat.AP | CD8 T cells are specialized immune cells that play an important role in the
regulation of antiviral immune response and the generation of protective
immunity. In this paper we investigate the differentiation of memory CD8 T
cells in the immune response using a short time course microarray experiment.
Structurally, this... | statistics |
10,749 | Curve alignment by moments | stat.AP | A significant problem with most functional data analyses is that of
misaligned curves. Without adjustment, even an analysis as simple as estimation
of the mean will fail. One common method to synchronize a set of curves
involves equating ``landmarks'' such as peaks or troughs. The landmarks method
can work well but wil... | statistics |
10,750 | Accounting for spatial correlation in the scan statistic | stat.AP | The spatial scan statistic is widely used in epidemiology and medical studies
as a tool to identify hotspots of diseases. The classical spatial scan
statistic assumes the number of disease cases in different locations have
independent Poisson distributions, while in practice the data may exhibit
overdispersion and spat... | statistics |
10,751 | Crossing paths in 2D Random Walks | stat.AP | We investigate crossing path probabilities for two agents that move randomly
in a bounded region of the plane or on a sphere (denoted $R$). At each discrete
time-step the agents move, independently, fixed distances $d_1$ and $d_2$ at
angles that are uniformly distributed in $(0,2\pi)$. If $R$ is large enough and
the in... | statistics |
10,752 | Correction: A correlated topic model of Science | stat.AP | Correction to Annals of Applied Statistics 1 (2007) 17--35
[doi:10.1214/07-AOAS114] | statistics |
10,753 | Improving population-specific allele frequency estimates by adapting supplemental data: an empirical Bayes approach | stat.AP | Estimation of the allele frequency at genetic markers is a key ingredient in
biological and biomedical research, such as studies of human genetic variation
or of the genetic etiology of heritable traits. As genetic data becomes
increasingly available, investigators face a dilemma: when should data from
other studies an... | statistics |
10,754 | The BARISTA: A model for bid arrivals in online auctions | stat.AP | The arrival process of bidders and bids in online auctions is important for
studying and modeling supply and demand in the online marketplace. A popular
assumption in the online auction literature is that a Poisson bidder arrival
process is a reasonable approximation. This approximation underlies theoretical
derivation... | statistics |
10,755 | A statistical framework for the analysis of microarray probe-level data | stat.AP | In microarray technology, a number of critical steps are required to convert
the raw measurements into the data relied upon by biologists and clinicians.
These data manipulations, referred to as preprocessing, influence the quality
of the ultimate measurements and studies that rely upon them. Standard
operating procedu... | statistics |
10,756 | Describing disability through individual-level mixture models for multivariate binary data | stat.AP | Data on functional disability are of widespread policy interest in the United
States, especially with respect to planning for Medicare and Social Security
for a growing population of elderly adults. We consider an extract of
functional disability data from the National Long Term Care Survey (NLTCS) and
attempt to devel... | statistics |
10,757 | Diverse correlation structures in gene expression data and their utility in improving statistical inference | stat.AP | It is well known that correlations in microarray data represent a serious
nuisance deteriorating the performance of gene selection procedures. This paper
is intended to demonstrate that the correlation structure of microarray data
provides a rich source of useful information. We discuss distinct correlation
substructur... | statistics |
10,758 | Chemical and forensic analysis of JFK assassination bullet lots: Is a second shooter possible? | stat.AP | The assassination of President John Fitzgerald Kennedy (JFK) traumatized the
nation. In this paper we show that evidence used to rule out a second assassin
is fundamentally flawed. This paper discusses new compositional analyses of
bullets reportedly to have been derived from the same batch as those used in
the assassi... | statistics |
10,759 | On the Empirical Importance of the Conditional Skewness Assumption in Modelling the Relationship Between Risk and Return | stat.AP | The main goal of this paper is an application of Bayesian inference in
testing the relation between risk and return on the financial instruments. On
the basis of the Intertemporal CAPM model we built a general sampling model
suitable in analysing such a relationship. The most important feature of our
assumptions is tha... | statistics |
10,760 | Bilinear Mixed Effects Models For Relations Between Universities | stat.AP | this article illustrates the use of linear and bilinear random effects models
to represent statistical dependencies that often characterize dyadic data such
as international relations. In particular, we show how to estimate models for
dyadic data that simultaneously take into account: regressor variables and
third-orde... | statistics |
10,761 | A preferential attachment model with Poisson growth for scale-free networks | stat.AP | We propose a scale-free network model with a tunable power-law exponent. The
Poisson growth model, as we call it, is an offshoot of the celebrated model of
Barab\'{a}si and Albert where a network is generated iteratively from a small
seed network; at each step a node is added together with a number of incident
edges pr... | statistics |
10,762 | Markovian Memory Embedded in Two-State Natural Processes | stat.AP | Markovian memory embedded in a binary system is shaping its evolution on the
basis of its current state and introduces either clustering or dispersion of
binary states. The consequence is directly observed in the lengthening or
shortening of the runs of the same binary state and also in the way the
proportion of a stat... | statistics |
10,763 | The Inverse Simpson Paradox (How To Win Without Overtly Cheating) | stat.AP | Given two sets of data which lead to a similar statistical conclusion, the
Simpson Paradox describes the tactic of combining these two sets and achieving
the opposite conclusion. Depending upon the given data, this may or may not
succeed. Inverse Simpson is a method of decomposing a given set of comparison
data into tw... | statistics |
10,764 | A regional Bayesian POT model for flood frequency analysis | stat.AP | Flood frequency analysis is usually based on the fitting of an extreme value
distribution to the local streamflow series. However, when the local data
series is short, frequency analysis results become unreliable. Regional
frequency analysis is a convenient way to reduce the estimation uncertainty. In
this work, we pro... | statistics |
10,765 | Modeling All Exceedances Above a Threshold Using an Extremal Dependence Structure: Inferences on Several Flood Characteristics | stat.AP | Flood quantile estimation is of great importance for many engineering studies
and policy decisions. However, practitioners must often deal with small data
available. Thus, the information must be used optimally. In the last decades,
to reduce the waste of data, inferential methodology has evolved from annual
maxima mod... | statistics |
10,766 | Usefulness of the Reversible Jump Markov Chain Monte Carlo Model in Regional Flood Frequency Analysis | stat.AP | Regional flood frequency analysis is a convenient way to reduce estimation
uncertainty when few data are available at the gauging site. In this work, a
model that allows a non-null probability to a regional fixed shape parameter is
presented. This methodology is integrated within a Bayesian framework and uses
reversibl... | statistics |
10,767 | Causal Models for Estimating the Effects of Weight Gain on Mortality | stat.AP | Suppose, contrary to fact, in 1950, we had put the cohort of 18 year old
non-smoking American men on a stringent mandatory diet that guaranteed that no
one would ever weigh more than their baseline weight established at age 18. How
would the counter-factual mortality of these 18 year olds have compared to
their actual ... | statistics |
10,768 | Homoscedastic controlled calibration model | stat.AP | In the context of the usual calibration model, we consider the case in which
the independent variable is unobservable, but a pre-fixed value on its
surrogate is available. Thus, considering controlled variables and assuming
that the measurement errors have equal variances we propose a new calibration
model. Likelihood ... | statistics |
10,769 | An efficient methodology for modeling complex computer codes with Gaussian processes | stat.AP | Complex computer codes are often too time expensive to be directly used to
perform uncertainty propagation studies, global sensitivity analysis or to
solve optimization problems. A well known and widely used method to circumvent
this inconvenience consists in replacing the complex computer code by a reduced
model, call... | statistics |
10,770 | Testing polynomial covariate effects in linear and generalized linear mixed models | stat.AP | An important feature of linear mixed models and generalized linear mixed
models is that the conditional mean of the response given the random effects,
after transformed by a link function, is linearly related to the fixed
covariate effects and random effects. Therefore, it is of practical importance
to test the adequac... | statistics |
10,771 | PGA Tour Scores as a Gaussian Random Variable | stat.AP | In this paper it is demonstrated that the scoring at each PGA Tour stroke
play event can be reasonably modeled as a Gaussian random variable. All 46
stroke play events in the 2007 season are analyzed. The distributions of scores
are favorably compared with a Gaussian distribution using the
Kolmogorov-Smirnov test. This... | statistics |
10,772 | Bayesball: A Bayesian hierarchical model for evaluating fielding in major league baseball | stat.AP | The use of statistical modeling in baseball has received substantial
attention recently in both the media and academic community. We focus on a
relatively under-explored topic: the use of statistical models for the analysis
of fielding based on high-resolution data consisting of on-field location of
batted balls. We co... | statistics |
10,773 | Statistical aspects of birth--and--growth stochastic processes | stat.AP | The paper considers a particular family of set--valued stochastic processes
modeling birth--and--growth processes. The proposed setting allows us to
investigate the nucleation and the growth processes. A decomposition theorem is
established to characterize the nucleation and the growth. As a consequence,
different cons... | statistics |
10,774 | Influence of Speed Limit on Roadway Safety in Indiana | stat.AP | The influence of speed limits on roadway safety is an extremely important
social issue and is subject to an extensive debate in the State of Indiana and
nationwide. With around 800-900 fatalities and thousands of injuries annually
in Indiana, traffic accidents place an incredible social and economic burden on
the state... | statistics |
10,775 | Editorial: Statistics and "The lost tomb of Jesus" | stat.AP | What makes a problem suitable for statistical analysis? Are historical and
religious questions addressable using statistical calculations? Such issues
have long been debated in the statistical community and statisticians and
others have used historical information and texts to analyze such questions as
the economics of... | statistics |
10,776 | In-season prediction of batting averages: A field test of empirical Bayes and Bayes methodologies | stat.AP | Batting average is one of the principle performance measures for an
individual baseball player. It is natural to statistically model this as a
binomial-variable proportion, with a given (observed) number of qualifying
attempts (called ``at-bats''), an observed number of successes (``hits'')
distributed according to the... | statistics |
10,777 | False discovery rate analysis of brain diffusion direction maps | stat.AP | Diffusion tensor imaging (DTI) is a novel modality of magnetic resonance
imaging that allows noninvasive mapping of the brain's white matter. A
particular map derived from DTI measurements is a map of water principal
diffusion directions, which are proxies for neural fiber directions. We
consider a study in which diffu... | statistics |
10,778 | On regression adjustments in experiments with several treatments | stat.AP | Regression adjustments are often made to experimental data. Since
randomization does not justify the models, bias is likely; nor are the usual
variance calculations to be trusted. Here, we evaluate regression adjustments
using Neyman's nonparametric model. Previous results are generalized, and more
intuitive proofs are... | statistics |
10,779 | Simultaneous inference: When should hypothesis testing problems be combined? | stat.AP | Modern statisticians are often presented with hundreds or thousands of
hypothesis testing problems to evaluate at the same time, generated from new
scientific technologies such as microarrays, medical and satellite imaging
devices, or flow cytometry counters. The relevant statistical literature tends
to begin with the ... | statistics |
10,780 | Sparse estimation of large covariance matrices via a nested Lasso penalty | stat.AP | The paper proposes a new covariance estimator for large covariance matrices
when the variables have a natural ordering. Using the Cholesky decomposition of
the inverse, we impose a banded structure on the Cholesky factor, and select
the bandwidth adaptively for each row of the Cholesky factor, using a novel
penalty we ... | statistics |
10,781 | Skip sequencing: A decision problem in questionnaire design | stat.AP | This paper studies questionnaire design as a formal decision problem,
focusing on one element of the design process: skip sequencing. We propose that
a survey planner use an explicit loss function to quantify the trade-off
between cost and informativeness of the survey and aim to make a design choice
that minimizes los... | statistics |
10,782 | Coordinate descent algorithms for lasso penalized regression | stat.AP | Imposition of a lasso penalty shrinks parameter estimates toward zero and
performs continuous model selection. Lasso penalized regression is capable of
handling linear regression problems where the number of predictors far exceeds
the number of cases. This paper tests two exceptionally fast algorithms for
estimating re... | statistics |
10,783 | A statistical framework for testing functional categories in microarray data | stat.AP | Ready access to emerging databases of gene annotation and functional pathways
has shifted assessments of differential expression in DNA microarray studies
from single genes to groups of genes with shared biological function. This
paper takes a critical look at existing methods for assessing the differential
expression ... | statistics |
10,784 | Accounting for self-protective responses in randomized response data from a social security survey using the zero-inflated Poisson model | stat.AP | In 2004 the Dutch Department of Social Affairs conducted a survey to assess
the extent of noncompliance with social security regulations. The survey was
conducted among 870 recipients of social security benefits and included a
series of sensitive questions about regulatory noncompliance. Due to the
sensitive nature of ... | statistics |
10,785 | Transcription factor binding site prediction with multivariate gene expression data | stat.AP | Multi-sample microarray experiments have become a standard experimental
method for studying biological systems. A frequent goal in such studies is to
unravel the regulatory relationships between genes. During the last few years,
regression models have been proposed for the de novo discovery of cis-acting
regulatory seq... | statistics |
10,786 | Optimal factorial designs for cDNA microarray experiments | stat.AP | We consider cDNA microarray experiments when the cell populations have a
factorial structure, and investigate the problem of their optimal designing
under a baseline parametrization where the objects of interest differ from
those under the more common orthogonal parametrization. First, analytical
results are given for ... | statistics |
10,787 | Assessing surrogate endpoints in vaccine trials with case-cohort sampling and the Cox model | stat.AP | Assessing immune responses to study vaccines as surrogates of protection
plays a central role in vaccine clinical trials. Motivated by three ongoing or
pending HIV vaccine efficacy trials, we consider such surrogate endpoint
assessment in a randomized placebo-controlled trial with case-cohort sampling
of immune respons... | statistics |
10,788 | A hidden spatial-temporal Markov random field model for network-based analysis of time course gene expression data | stat.AP | Microarray time course (MTC) gene expression data are commonly collected to
study the dynamic nature of biological processes. One important problem is to
identify genes that show different expression profiles over time and pathways
that are perturbed during a given biological process. While methods are
available to ide... | statistics |
10,789 | Letter to the editor. NAA and JFK: Can revisionism take us home? | stat.AP | Occasionally during the course of the human learning experience we are faced
with an anomaly. An aberration of sorts, which try as we might, defies
appropriate classification. The recent paper by Spiegelman et al.--Chemical and
forensic analysis of JFK assassination bullet lots: Is a second shooter
possible?--is one su... | statistics |
10,790 | Response to the Letter to the Editor | stat.AP | This paper has attracted interest around the world from the media (both TV
and newspapers). In addition, we have received letters, emails and telephone
calls. One of our favorites was a voicemail message asking us to return a call
to Australia at which point we would learn who really killed JFK. We welcome
the opportun... | statistics |
10,791 | Statistical advances and challenges for analyzing correlated high dimensional SNP data in genomic study for complex diseases | stat.AP | Recent advances of information technology in biomedical sciences and other
applied areas have created numerous large diverse data sets with a high
dimensional feature space, which provide us a tremendous amount of information
and new opportunities for improving the quality of human life. Meanwhile, great
challenges are... | statistics |
10,792 | Statistical analysis of an archeological find | stat.AP | In 1980, a burial tomb was unearthed in Jerusalem containing ossuaries
(limestone coffins) bearing such inscriptions as Yeshua son of Yehosef, Marya,
Yoseh--names which match those of New Testament (NT) figures, but were
otherwise in common use. This paper discusses certain statistical aspects of
authenticating or repu... | statistics |
10,793 | Discussion of: Statistical analysis of an archeological find | stat.AP | Discussion of ``Statistical analysis of an archeological find'' by Andrey
Feuerverger [arXiv:0804.0079] | statistics |
10,794 | Discussion of: Statistical analysis of an archeological find | stat.AP | Discussion of ``Statistical analysis of an archeological find'' by Andrey
Feuerverger [arXiv:0804.0079] | statistics |
10,795 | Discussion of: Statistical analysis of an archaeological find | stat.AP | Discussion of ``Statistical analysis of an archeological find'' by Andrey
Feuerverger [arXiv:0804.0079] | statistics |
10,796 | Discussion of: Statistical analysis of an archeological find--skeptical counting challenges to an archaeological find | stat.AP | Discussion of ``Statistical analysis of an archeological find'' by Andrey
Feuerverger [arXiv:0804.0079] | statistics |
10,797 | Discussion of: Statistical analysis of an archeological find | stat.AP | Discussion of ``Statistical analysis of an archeological find'' by Andrey
Feuerverger [arXiv:0804.0079] | statistics |
10,798 | Discussion of: Statistical analysis of an archaeological find | stat.AP | We critique the analysis by A. Feuerverger of an archaeological find
[arXiv:0804.0079] that has been alleged by some to be the tomb of Jesus of
Nazareth. We show that his analysis rests on six faulty assumptions that have
been severely criticized by historians, archaeologists, and scholars in related
disciplines. We su... | statistics |
10,799 | Discussion of: Statistical analysis of an archeological find | stat.AP | Discussion of ``Statistical analysis of an archeological find'' by Andrey
Feuerverger [arXiv:0804.0079] | statistics |
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