Modified generalized method of moments for a robust estimation of polytomous logistic model.

Abstract:

:The maximum likelihood estimation (MLE) method, typically used for polytomous logistic regression, is prone to bias due to both misclassification in outcome and contamination in the design matrix. Hence, robust estimators are needed. In this study, we propose such a method for nominal response data with continuous covariates. A generalized method of weighted moments (GMWM) approach is developed for dealing with contaminated polytomous response data. In this approach, distances are calculated based on individual sample moments. And Huber weights are applied to those observations with large distances. Mellow-type weights are also used to downplay leverage points. We describe theoretical properties of the proposed approach. Simulations suggest that the GMWM performs very well in correcting contamination-caused biases. An empirical application of the GMWM estimator on data from a survey demonstrates its usefulness.

journal_name

PeerJ

journal_title

PeerJ

authors

Wang X

doi

10.7717/peerj.467

subject

Has Abstract

pub_date

2014-07-01 00:00:00

pages

e467

issn

2167-8359

pii

467

journal_volume

2

pub_type

杂志文章

相关文献

PeerJ文献大全
  • Blue hypertext is a good design decision: no perceptual disadvantage in reading and successful highlighting of relevant information.

    abstract:BACKGROUND:Highlighted text in the Internet (i.e., hypertext) is predominantly blue and underlined. The perceptibility of these hypertext characteristics was heavily questioned by applied research and empirical tests resulted in inconclusive results. The ability to recognize blue text in foveal and parafoveal vision wa...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.2467

    authors: Gagl B

    更新日期:2016-09-20 00:00:00

  • Predictors of exercise participation in ambulatory and non-ambulatory older people with multiple sclerosis.

    abstract::Background. Exercise at moderate intensity may confer neuroprotective benefits in multiple sclerosis (MS), however it has been reported that people with MS (PwMS) exercise less than national guideline recommendations. We aimed to determine predictors of moderate to vigorous exercise among a sample of older Canadians w...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.1158

    authors: Ploughman M,Harris C,Wallack EM,Drodge O,Beaulieu S,Mayo N,Health Lifestyle and Aging with MS Canadian Consortium.

    更新日期:2015-08-06 00:00:00

  • Effect of fatigue and gender on kinematics and ground reaction forces variables in recreational runners.

    abstract::The presence of fatigue has been shown to modify running biomechanics. Overall in terms of gender, women are at lower risk than men for sustaining running-related injuries, although it depends on the factors taken into account. One possible reason for these differences in the injury rate and location might be the diss...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.4489

    authors: Bazuelo-Ruiz B,Durá-Gil JV,Palomares N,Medina E,Llana-Belloch S

    更新日期:2018-03-20 00:00:00

  • Comparison of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in the serum of hypothyroxinemic and euthyroid dogs.

    abstract:OBJECTIVE:To determine the profile of 14 polybrominated diphenyl ethers (PBDEs) and 23 polychlorinated biphenyls (PCBs) in serum of domestic canines and whether this was predictive of thyroid hormone status. SAMPLES:Serum samples were collected from 51 client-owned dogs visiting the University of California Davis Will...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3780

    authors: Lau G,Walter K,Kass P,Puschner B

    更新日期:2017-09-12 00:00:00

  • Transcriptome for the breast muscle of Jinghai yellow chicken at early growth stages.

    abstract:Background:The meat quality of yellow feathered broilers is better than the quality of its production. Growth traits are important in the broiler industry. The exploration of regulation mechanisms for the skeletal muscle would help to increase the growth performance of chickens. At present, some progress has been made ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.8950

    authors: Wu P,Zhang X,Zhang G,Chen F,He M,Zhang T,Wang J,Xie K,Dai G

    更新日期:2020-04-15 00:00:00

  • Microbial communities respond to experimental warming, but site matters.

    abstract::Because microorganisms are sensitive to temperature, ongoing global warming is predicted to influence microbial community structure and function. We used large-scale warming experiments established at two sites near the northern and southern boundaries of US eastern deciduous forests to explore how microbial communiti...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.358

    authors: Cregger MA,Sanders NJ,Dunn RR,Classen AT

    更新日期:2014-04-24 00:00:00

  • A quantitative look on northwestern Tethyan foraminiferal assemblages, Campanian Nierental Formation, Austria.

    abstract::Deposits spanning the Radotruncana calcarata Taxon Range Zone at the Postalm section, Northern Calcareous Alps (Austria) are examined quantitatively for foraminiferal assemblages, especially the planktonic group. This study focuses on establishing a high resolution record spanning an 800 ka long stratigraphic interval...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.1757

    authors: Wolfgring E,Wagreich M

    更新日期:2016-03-08 00:00:00

  • A comprehensive investigation of mesophotic coral ecosystems in the Hawaiian Archipelago.

    abstract::Although the existence of coral-reef habitats at depths to 165 m in tropical regions has been known for decades, the richness, diversity, and ecological importance of mesophotic coral ecosystems (MCEs) has only recently become widely acknowledged. During an interdisciplinary effort spanning more than two decades, we c...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.2475

    authors: Pyle RL,Boland R,Bolick H,Bowen BW,Bradley CJ,Kane C,Kosaki RK,Langston R,Longenecker K,Montgomery A,Parrish FA,Popp BN,Rooney J,Smith CM,Wagner D,Spalding HL

    更新日期:2016-10-04 00:00:00

  • Suppression of Wolbachia-mediated male-killing in the butterfly Hypolimnas bolina involves a single genomic region.

    abstract:Background:Sex ratio distorting agents (maternally inherited symbionts and meiotically-driving sex chromosomes) are common in insects. When these agents rise to high frequencies they create strong population sex ratio bias and selection then favours mutations that act to restore the rare sex. Despite this strong select...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.7677

    authors: Reynolds LA,Hornett EA,Jiggins CD,Hurst GDD

    更新日期:2019-10-01 00:00:00

  • Repurposing a traditional Japanese method of pest control for wintering pine moths, Komo-trap, for use against summer and winter populations of fall webworms.

    abstract:Background:The fall webworm, Hyphantria cunea Drury (Lepidoptera: Erebidae), is a widespread invasive species. It is native to North America, ranging from southern Canada to northern Mexico. During and after the 1940s, this pest was accidentally introduced in many parts of Europe and Asia. It has now spread to more tha...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.9244

    authors: Mikami OK,Takamatsu M,Yarita R

    更新日期:2020-06-02 00:00:00

  • Challenges of transferring models of fish abundance between coral reefs.

    abstract::Reliable abundance estimates for species are fundamental in ecology, fisheries, and conservation. Consequently, predictive models able to provide reliable estimates for un- or poorly-surveyed locations would prove a valuable tool for management. Based on commonly used environmental and physical predictors, we develope...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.4566

    authors: Sequeira AMM,Mellin C,Lozano-Montes HM,Meeuwig JJ,Vanderklift MA,Haywood MDE,Babcock RC,Caley MJ

    更新日期:2018-04-17 00:00:00

  • An integrated pipeline for next generation sequencing and annotation of the complete mitochondrial genome of the giant intestinal fluke, Fasciolopsis buski (Lankester, 1857) Looss, 1899.

    abstract::Helminths include both parasitic nematodes (roundworms) and platyhelminths (trematode and cestode flatworms) that are abundant, and are of clinical importance. The genetic characterization of parasitic flatworms using advanced molecular tools is central to the diagnosis and control of infections. Although the nuclear ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.207

    authors: Biswal DK,Ghatani S,Shylla JA,Sahu R,Mullapudi N,Bhattacharya A,Tandon V

    更新日期:2013-11-12 00:00:00

  • Physiological responses of Oxyrrhis marina to a diet of virally infected Emiliania huxleyi.

    abstract::The coccolithophore Emiliania huxleyi forms some of the largest phytoplankton blooms in the ocean. The rapid demise of these blooms has been linked to viral infections. E. huxleyi abundance, distribution, and nutritional status make them an important food source for the heterotrophic protists which are classified as m...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.6722

    authors: Goode AG,Fields DM,Archer SD,Martínez Martínez J

    更新日期:2019-04-19 00:00:00

  • Environmental influences on the Indo-Pacific octocoral Isis hippuris Linnaeus 1758 (Alcyonacea: Isididae): genetic fixation or phenotypic plasticity?

    abstract::As conspicuous modular components of benthic marine habitats, gorgonian (sea fan) octocorals have perplexed taxonomists for centuries through their shear diversity, particularly throughout the Indo-Pacific. Phenotypic incongruence within and between seemingly unitary lineages across contrasting environments can provid...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.1128

    authors: Rowley SJ,Pochon X,Watling L

    更新日期:2015-08-20 00:00:00

  • Analysis of the spike, ORF3, and nucleocapsid genes of porcine epidemic diarrhea virus circulating on Thai swine farms, 2011-2016.

    abstract::Porcine epidemic diarrhea virus (PEDV) outbreaks on pig farms have caused significant economic loss in the swine industry since it was first reported in Thailand a decade ago. Anecdotal evidence suggests that PEDV is now endemic in this region, therefore genome information of circulating PEDV is important for molecula...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.6843

    authors: Tuanthap S,Vongpunsawad S,Phupolphan C,Duang-In A,Wattanaphansak S,Assavacheep P,Theamboonlers A,Luengyosluechakul S,Amonsin A,Poovorawan Y

    更新日期:2019-04-30 00:00:00

  • Social network community structure and the contact-mediated sharing of commensal E. coli among captive rhesus macaques (Macaca mulatta).

    abstract::In group-living animals, heterogeneity in individuals' social connections may mediate the sharing of microbial infectious agents. In this regard, the genetic relatedness of individuals' commensal gut bacterium Escherichia coli may be ideal to assess the potential for pathogen transmission through animal social network...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.4271

    authors: Balasubramaniam K,Beisner B,Guan J,Vandeleest J,Fushing H,Atwill E,McCowan B

    更新日期:2018-01-17 00:00:00

  • 15-LOX metabolites and angiogenesis: angiostatic effect of 15(S)-HPETE involves induction of apoptosis in adipose endothelial cells.

    abstract::Inflammation is critical in the dysregulated growth of adipose tissue and associated vascular dysfunctions. 15-Lipoxygenase metabolites, important mediators of inflammation in adipose tissue during obese conditions, may contribute to codependence of inflammation and angiogenesis in adipose tissue. We have already repo...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.635

    authors: Soumya SJ,Binu S,Helen A,Reddanna P,Sudhakaran PR

    更新日期:2014-10-21 00:00:00

  • Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach.

    abstract:Background:Cholera, an acute enteric infection, is a serious health challenge in both the underdeveloped and the developing world. It is caused by Vibrio cholerae after ingestion of fecal contaminated food or water. Cholera outbreaks have recently been observed in regions facing natural calamities (i.e., earthquake in ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.6223

    authors: Rashid MI,Rehman S,Ali A,Andleeb S

    更新日期:2019-06-19 00:00:00

  • Microfungal oasis in an oligotrophic desert: diversity patterns and community structure in three freshwater systems of Cuatro Ciénegas, Mexico.

    abstract::The Cuatro Ciénegas Basin (CCB) comprises several oligotrophic aquatic ecosystems limited by phosphorus. These aquatic systems are dominated by a high prokaryotic diversity, shaped by the stress of low nutrient supplies and interspecific competition. Although fungi constitute a diverse and important component of micro...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.2064

    authors: Velez P,Gasca-Pineda J,Rosique-Gil E,Eguiarte LE,Espinosa-Asuar L,Souza V

    更新日期:2016-06-02 00:00:00

  • Evaluation of a new Argovit as an antiviral agent included in feed to protect the shrimp Litopenaeus vannamei against White Spot Syndrome Virus infection.

    abstract::In this study, four experimental assays were conducted to evaluate the use of a new silver nanoparticle formulation named Argovit-4, which was prepared with slight modifications to enhance its biological activity against white spot syndrome virus (WSSV) in shrimp culture. The goals of these assays were to (1) determin...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.8446

    authors: Romo-Quiñonez CR,Álvarez-Sánchez AR,Álvarez-Ruiz P,Chávez-Sánchez MC,Bogdanchikova N,Pestryakov A,Mejia-Ruiz CH

    更新日期:2020-02-27 00:00:00

  • Are invasive populations characterized by a broader diet than native populations?

    abstract:BACKGROUND:Invasive species are among the most significant threats to biodiversity. The diet of invasive animal populations is a crucial factor that must be considered in the context of biological invasions. A broad dietary spectrum is a frequently cited characteristic of invasive species, allowing them to thrive in a ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3250

    authors: Courant J,Vogt S,Marques R,Measey J,Secondi J,Rebelo R,De Villiers A,Ihlow F,De Busschere C,Backeljau T,Rödder D,Herrel A

    更新日期:2017-05-16 00:00:00

  • Variegated tropical landscapes conserve diverse dung beetle communities.

    abstract:BACKGROUND:Conserving biodiversity in tropical landscapes is a major challenge to scientists and conservationists. Current rates of deforestation, fragmentation, and land use intensification are producing variegated landscapes with undetermined values for the conservation of biological communities and ecosystem functio...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3125

    authors: Costa C,Oliveira VHF,Maciel R,Beiroz W,Korasaki V,Louzada J

    更新日期:2017-04-04 00:00:00

  • Environmental stressors may cause equine herpesvirus reactivation in captive Grévy's zebras (Equus grevyi).

    abstract::Equine Herpesviruses (EHV) are common and often latent pathogens of equids which can cause fatalities when transmitted to non-equids. Stress and elevated glucocorticoids have been associated with EHV reactivation in domestic horses, but little is known about the correlation between stress and viral reactivation in wil...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.5422

    authors: Seeber PA,Quintard B,Sicks F,Dehnhard M,Greenwood AD,Franz M

    更新日期:2018-08-22 00:00:00

  • Hydroclimatic variations reveal differences in carbon capture in two sympatric conifers in northern Mexico.

    abstract:Background:Forest ecosystems are considered among the largest terrestrial carbon sinks. The dynamics of forest carbon depend on where the carbon is stored and its responses to environmental factors, as well as the physiology of the trees. Thus, threatened forest regions with high biodiversity have great scientific impo...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.7085

    authors: González-Cásares M,Pompa-García M,Venegas-González A,Domínguez-Calleros P,Hernández-Díaz J,Carrillo-Parra A,González-Tagle M

    更新日期:2019-06-11 00:00:00

  • Synchrotron scanning reveals the palaeoneurology of the head-butting Moschops capensis (Therapsida, Dinocephalia).

    abstract::Dinocephalian therapsids are renowned for their massive, pachyostotic and ornamented skulls adapted for head-to-head fighting during intraspecific combat. Synchrotron scanning of the tapinocephalid Moschops capensis reveals, for the first time, numerous anatomical adaptations of the central nervous system related to t...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3496

    authors: Benoit J,Manger PR,Norton L,Fernandez V,Rubidge BS

    更新日期:2017-08-10 00:00:00

  • The homeodomain factor Gbx1 is required for locomotion and cell specification in the dorsal spinal cord.

    abstract::Dorsal horn neurons in the spinal cord integrate and relay sensory information to higher brain centers. These neurons are organized in specific laminae and different transcription factors are involved in their specification. The murine homeodomain Gbx1 protein is expressed in the mantle zone of the spinal cord at E12....

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.142

    authors: Meziane H,Fraulob V,Riet F,Krezel W,Selloum M,Geffarth M,Acampora D,Hérault Y,Simeone A,Brand M,Dollé P,Rhinn M

    更新日期:2013-08-29 00:00:00

  • Chemical analysis and evaluation of antioxidant and antimicrobial activities of fruit fractions of Mauritia flexuosa L. f. (Arecaceae).

    abstract:Background:Fruit consumption is currently considered beyond the nutritional aspects because of the important roles in disease prevention and benefits to health. The objective of this study was to characterize the chemical profile and evaluate the antioxidant and antimicrobial properties of different fractions obtained ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.5991

    authors: Nonato CFA,Leite DOD,Pereira RC,Boligon AA,Ribeiro-Filho J,Rodrigues FFG,da Costa JGM

    更新日期:2018-11-28 00:00:00

  • Proceraea exoryxae sp. nov. (Annelida, Syllidae, Autolytinae), the first known polychaete miner tunneling into the tunic of an ascidian.

    abstract::While studying organisms living in association with the solitary tunicate Phallusia nigra (Ascidiacea, Ascidiidae) from a shallow fringing reef at Zeytouna Beach (Egyptian Red Sea), one of the collected ascidians showed peculiar perforations on its tunic. Once dissected, the perforations revealed to be the openings of...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3374

    authors: Martin D,Nygren A,Cruz-Rivera E

    更新日期:2017-06-01 00:00:00

  • Effects of different ablation points of renal denervation on the efficacy of resistant hypertension.

    abstract:Objective:To explore the blood pressure response to different ablation points of renal denervation (RDN) in patients with resistant hypertension. Methods:A total of 42 cases with resistant hypertension treated by RDN in our center from 2013 to 2015 were retrospectively analyzed. The patients were divided into two grou...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.9842

    authors: Zhang H,Li LY,Xiao RX,Zhang TC,Liu ZJ,Gao JQ

    更新日期:2020-09-15 00:00:00

  • Trypophobia as an urbanized emotion: comparative research in ethnic minority regions of China.

    abstract::Trypophobia is a strong emotion of disgust evoked by clusters of holes or round objects (e.g., lotus seed pod). It has become increasingly popular and been studied since 2010s, mainly in the West and Japan. Considering this, trypophobia might be a modern emotion, and hence urbanization possibly plays key roles in tryp...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.8837

    authors: Zhu S,Sasaki K,Jiang Y,Qian K,Yamada Y

    更新日期:2020-03-18 00:00:00