Heather Turner

Heather Turner
The University of Warwick · Department of Statistics

PhD Statistics

About

32
Publications
6,689
Reads
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826
Citations
Citations since 2017
13 Research Items
443 Citations
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Introduction
Heather Turner is a freelance consultant and an Associate Fellow at the Department of Statistics, The University of Warwick. Her publications are the result of collaborative work across the fields of statistics, social science, bioinformatics and agriculture.

Publications

Publications (32)
Article
Full-text available
Conferences are spaces to meet and network within and across academic and technical fields, learn about new advances, and share our work. They can help define career paths and create long-lasting collaborations and opportunities. However, these opportunities are not equal for all. This article introduces 10 simple rules to host an inclusive confere...
Article
Full-text available
We propose a hazard model for entry into marriage, based on a bell-shaped function to model the dependence on age. We demonstrate near-aliasing in an extension that estimates the support of the hazard and mitigate this via re-parameterization. Our proposed model parameterizes the maximum hazard and corresponding age, thereby facilitating more gener...
Article
Full-text available
This paper presents the R package PlackettLuce, which implements a generalization of the Plackett–Luce model for rankings data. The generalization accommodates both ties (of arbitrary order) and partial rankings (complete rankings of subsets of items). By default, the implementation adds a set of pseudo-comparisons with a hypothetical item, ensurin...
Preprint
Full-text available
This paper introduces a natural extension of the pair-comparison-with-ties model of Davidson (1970, J. Amer. Statist. Assoc.), to allow for ties when more than two items are compared. Properties of the new model are discussed. It is found that this "Davidson-Luce" model retains the many appealing features of Davidson's solution, while extending the...
Preprint
Full-text available
This paper presents the R package PlackettLuce, which implements a generalization of the Plackett-Luce model for rankings data. The generalization accommodates both ties (of any order) and partial rankings (rankings of only some items). By default, the implementation adds a set of pseudo-comparisons with a hypothetical item, ensuring that the netwo...
Article
Full-text available
Background: Eye movement desensitization and reprocessing (EMDR) is a psychological therapy for post-traumatic stress disorder, or any disorder where the patient reports distressing imagery. We report here a prospective case series to test the prediction that the average number of distress images tends to seven. Methods: Patients in a sexual health...
Article
Full-text available
Clinical efficacy regularly requires the combination of drugs. For an early estimation of the clinical value of (potentially many) combinations of pharmacologic compounds during discovery, the observed combination effect is typically compared to that expected under a null model. Mechanistic accuracy of that null model is not aspired to; to the cont...
Article
Full-text available
Background: In 2015, new disability weights (DWs) for infectious diseases were constructed based on data from four European countries. In this paper, we evaluated if country, age, sex, disease experience status, income and educational levels have an impact on these DWs. Methods: We analyzed paired comparison responses of the European DW study by...
Article
Many scholars see social mobility as a key factor that contributes to the emergence of cultural omnivores. In this article, we discuss three versions of the social mobility argument and assess their empirical validity using recent survey data on music and visual arts consumption in the United Kingdom. By applying diagonal reference models to our da...
Article
Full-text available
The NIH-funded LINCS program has been initiated to generate a library of integrated, network-based, cellular signatures (LINCS). A novel high-throughput gene-expression profiling assay known as L1000 was the main technology used to generate more than a million transcriptional profiles. The profiles are based on the treatment of 14 cell lines with o...
Article
Background Epratuzumab is a monoclonal antibody targeting CD22 that is currently in phase III clinical trials in systemic lupus erythematosus (SLE) patients. CD22 is found almost exclusively on B cells, and in in vitro B-cell cultures, epratuzumab down-regulates B-cell receptor (BCR)-dependent cell signaling and B-cell activation events1,2. Objecti...
Article
Full-text available
This is a short overview of the R add-on package BradleyTerry2, which facilitates the specification and fitting of Bradley-Terry logit, probit or cauchit models to pair-comparison data. Included are the standard ‘unstructured’ Bradley-Terry model, structured versions in which the parameters are related through a linear predictor to explanatory vari...
Data
Supplementary gene expression tables and gene set enrichment analysis results.
Article
Full-text available
The transcription factor MYC is a critical regulator of diverse cellular processes, including both replication and apoptosis. Differences in MYC-regulated gene expression responsible for such opposing outcomes in vivo remain obscure. To address this we have examined time-dependent changes in global gene expression in two transgenic mouse models in...
Conference Paper
We seek to model the hazard of entry into marriage for a sample of women in Ireland born between 1950 and 1973. Motivated by the work of Blossfeld and Huinink (1991), we propose a nonlinear discrete-time hazard model, which estimates the risk period and allows the effect of covariates on both the scale of risk and the age of maximum risk to be inve...
Technical Report
Full-text available
When modeling the hazard of entry into marriage, the non-mono-tonic dependence on age needs to be taken into account. In this paper, nonlinear discrete-time hazard models based on a bell-shaped func-tion are proposed, in which the support of the hazard function, the maximum hazard and the age of maximum hazard are estimated. Starting in the proport...
Article
Microarrays have become a standard tool for investigating gene function and more complex microarray experiments are increasingly being conducted. For example, an experiment may involve samples from several groups or may investigate changes in gene expression over time for several subjects, leading to large three-way data sets. In response to this i...
Article
A new algorithm is presented for fitting the plaid model, a biclustering method developed for clustering gene expression data. The approach is based on speedy individual differences clustering and uses binary least squares to update the cluster membership parameters, making use of the binary constraints on these parameters and simplifying the other...
Article
Full-text available
This paper reviews current methods for fitting a range of models to censored seed germination data and recommends adoption of a probability-based model for the time to germination. It shows that, provided the probability of a seed eventually germinating is not on the boundary, maximum likelihood estimates, their standard errors and the resultant de...
Article
Planting of genotype mixtures is a major strategy for the non-chemical control of willow rust in short-rotation coppice willows grown for biomass. In 1997 and 1998, the relative severity and spatiotemporal distribution of stem canker damage by Melampsora spp. on Salix viminalis 'Bowles Hybrid' in a field trial containing monocultures and two design...
Article
Summary • Planting of willow genotype mixtures for biomass production has been suggested as a non-chemical strategy for pest management. Basic information on spatial dynamics of important insects and pathogens is necessary for the effective deployment of host genotypes in a plantation. In 1998 and 1999 the degree and spatial distribution of damage...

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