Bibliografías temáticas / Wilcoxon test

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Literatura académica sobre el tema "Wilcoxon test"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 3 de febrero de 2022

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Artículos de revistas sobre el tema "Wilcoxon test"

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Anaene Oyeka, Ikewelugo Cyprian y Godday Uwawunkonye Ebuh. "Modified Wilcoxon Signed-Rank Test". Open Journal of Statistics 02, n.º 02 (2012): 172–76. http://dx.doi.org/10.4236/ojs.2012.22019.

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Jasak, Zoran. "BENFORD’S LAW AND WILCOXON TEST". Journal of Mathematical Sciences: Advances and Applications 52, n.º 1 (10 de julio de 2018): 69–81. http://dx.doi.org/10.18642/jmsaa_7100121981.

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Phatarfod, R. M. y Aidan Sudbury. "A SIMPLE SEQUENTIAL WILCOXON TEST". Australian Journal of Statistics 30, n.º 1 (marzo de 1988): 93–106. http://dx.doi.org/10.1111/j.1467-842x.1988.tb00615.x.

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Barros, Roberto Souto Maior de, Juan Isidro González Hidalgo y Danilo Rafael de Lima Cabral. "Wilcoxon Rank Sum Test Drift Detector". Neurocomputing 275 (enero de 2018): 1954–63. http://dx.doi.org/10.1016/j.neucom.2017.10.051.

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Ozturk, Omer. "SUB-SAMPLE MANN–WHITNEY–WILCOXON TEST". Communications in Statistics - Theory and Methods 31, n.º 12 (31 de diciembre de 2002): 2361–77. http://dx.doi.org/10.1081/sta-120017230.

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Cuzick, Jack. "A wilcoxon-type test for trend". Statistics in Medicine 14, n.º 4 (28 de febrero de 1995): 445–46. http://dx.doi.org/10.1002/sim.4780140409.

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Cuzick, Jack. "A wilcoxon-type test for trend". Statistics in Medicine 4, n.º 1 (enero de 1985): 87–90. http://dx.doi.org/10.1002/sim.4780040112.

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Cuzick, Jack. "A wilcoxon-type test for trend". Statistics in Medicine 4, n.º 4 (octubre de 1985): 543–47. http://dx.doi.org/10.1002/sim.4780040416.

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Cuzick, Jack. "A wilcoxon-type test for trend". Statistics in Medicine 5, n.º 2 (marzo de 1986): 199. http://dx.doi.org/10.1002/sim.4780050210.

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Ludbrook, J. "The Wilcoxon-Mann-Whitney test condemned". British Journal of Surgery 83, n.º 1 (enero de 1996): 136–37. http://dx.doi.org/10.1002/bjs.1800830155.

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Tesis sobre el tema "Wilcoxon test"

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Kubáňová, Andrea. "Fúze obchodních korporací a jejich vliv na finanční situaci". Master's thesis, Vysoká škola ekonomická v Praze, 2016. http://www.nusl.cz/ntk/nusl-262379.

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This thesis is concerned with domestic mergers of business corporations realized between 2009 - 2012 and their influence on financial situation of chosen subjects. The first part of my paper describes basic theoretical aspects of mergers including their division and motives leading to the realization and their phases. The second chapter consists of trade-legal and accounting adjustment of mergers. Considering practical part, the main focus is on legal modification valid from 31. 12. 2011 to 1. 1. 2012. Following part of this thesis explains accounting solutions of mergers in example, where the immediate impact is shown on realization of the opening balance sheet. The fourth part is concerned with financial analysis, where the sources, users and relevant methods are mentioned. All analysis and results are submitted and described in the final part of my thesis.
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Lousa-Alvin, Alexandra. "Kungsängsverkets kväverening : inverkan på den interna fosforbelastningen i Ekoln". Thesis, Uppsala universitet, Institutionen för ekologi och genetik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-162249.

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Många sjöar är idag påverkade av mänsklig aktivitet, bland annat är 1 % av Sveriges sjöar eutrofierade, däribland Ekoln. Ekoln är en stor sjö i Uppsala län söder om Uppsala som länge varit eutrofierad. Fyrisån och Örsundaån är de största inflödena till Ekoln och Sävjaån är ett betydande biflöde till Fyrisån. Kungsängsverket är Uppsalas reningsverk och har sitt utlopp i Fyrisån och som ett led i att minska eutrofieringen byggdes fosforreningen ut 1972. Fosforhalterna i Ekoln sjönk och algblomningarna blev färre. Kvävereningen byggdes ut 1999 och i detta arbete utvärderas detta reningssteg.   Hypotesen är att när ammonium minskar i bottenvattnet kommer syrgasförhållandena att förbättras på grund av minskad ammoniumnedbrytning som förbrukar syrgas. Med ökad halt syrgas är det känt sedan tidigare studier att den interna fosforbelastningen och algblomningen minskar.   För att undersöka om det skett en signifikant minskning av näringsämnen i intransporten till Ekoln och av halterna i Ekoln utfördes statistiska test av ämnena för perioden före och perioden efter införandet av kväverening. Intransporterna modellerades även i StormTac.   Resultatet visar att det skett en minskning av kväve- och ammoniumtransport och en ökning av fosfor-, fosfat- och TOC-transport. I Ekoln har en minskning påvisats i ammonium-, totalfosforhalt och en ökning i fosfat- och TOC-halt. Ammoniumhalten har minskat i bottenvattnet så den minskade intransporten av ammonium gett en effekt. Fosfor- och fosfathalten har inte förändrats signifikant i bottenvattnet, men det har skett en viss minskning av fosfor och en viss ökning av fosfat i Ekoln perioden 1990-1998 till 2000-2010. Även syrgashalten har ökat i bottenvattnet.   Att det inte skett signifikanta förändringar i fosfor, fosfat och syrgas tyder på att intransporten till vattenmassan inte förändrats. Ökade TOC-halter leder till ökad nedbrytning där syrgas förbrukas i bottenvattnet. Det är möjligt att situationen sett ännu värre ut i Ekoln om inte kväveutsläppen minskat.
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Inga, de La Cruz Elvis Edgard. "A abordagem não paramétrica para avaliação da percepção de sustentabilidade do sistema de produção de arroz de terras altas". Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/5713.

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This study aimed, expand the method of Production Systems Sustainability Perception Rice High -MPSAT Lands. The choice of this method is justified by the fact that it has a good theoretical framework and be easily understood by the actors; however, it lacks nonparametric statistical approach. They were interviewed actors in the production chain of upland rice in Mato Grosso on two occasions, in 2006/07, when the MPSATA and 2014 was developed as part of this research. The methodology transformed the qualitative elements that make up the MPSATA (questions, attributes, indicators, key variables, secondary counselors, primary guiding and sustainability dimensions) for ordinal type and identified the sense of the order of the categories of these elements. Then it verified the significance of matched elements, considering the 2007 and 2014 surveys, with the IBM-SPSS 21. Later the element values were calculated. These elements have as a data source practices and managements carried out along the production chain. The end result of the research was the development of Parametric Method Not for Perception Sustainability Highlands Rice Production System - MPSATA-NP. The results obtained by MPSATA-NP allowed to accept or reject in statistical terms, if there were significant differences between the values of the features found in different eras who were surveyed, revealing that the 221 questions elements, eleven have statistical difference between their medians (three environmental dimension, two of the socioeconomic scale, four in the economic dimension and two territorial dimension). The other sustainability factors have changes compared to paired terms, however, it can´t be said that these elements are in fact different and represent more or less sustainable production conditions. So it follows that not hear significant change in the perception of the actors with respect to the sustainability of the land rice production system in the region.
O presente trabalho teve como objetivo, ampliar o método da Percepção de Sustentabilidade de Sistemas de Produção Arroz de Terras Altas -MPSAT1. A escolha desse método se justifica pelo fato do mesmo possuir uma boa estrutura teórica e ser de fácil compreensão pelos atores, no entanto, carece de abordagem estatística não paramétrica. Foram entrevistados atores da cadeia produtiva de arroz de terras altas em Mato Grosso em dois momentos, em 2006/07, quando o MPSATA foi desenvolvido e 2014, como parte integrante da presente pesquisa. A metodologia utilizada transformou os elementos qualitativos que compõem o MPSATA (quesitos, atributos, indicadores, variáveis essenciais, orientadores secundários, orientadores primários e dimensões de sustentabilidade) para o tipo ordinal e identificou o sentido da ordem das categorias desses elementos. Em seguida foi verificada a significância dos elementos emparelhados, considerando os levantamentos de 2007 e 2014, com o software IBM-SPSS 21. Posteriormente foram calculados os valores dos elementos. Estes elementos possuem como fonte de dados as práticas e manejos realizados ao longo da cadeia produtiva. O resultado final da pesquisa foi a elaboração do Método Não Paramétrico para a Percepção de Sustentabilidade de Sistema de produção de Arroz de Terras Altas – MPSATA-NP. Os resultados obtidos pelo MPSATA-NP permitiram aceitar ou rejeitar em termos estatísticos, se havia diferenças significativa entre os valores dos elementos quesitos encontrados nas diferentes épocas que foram pesquisados, revelando que dos 221 elementos quesitos, onze possuem diferença estatística entre as suas medianas (três da dimensão ambiental, duas da dimensão socioeconômica, quatro da dimensão econômica e dois da dimensão territorial). Os outros elementos de sustentabilidade possuem mudanças, no entanto, não pode-se se afirmar sejam de fato diferentes e que representem condições de produção mais ou menos sustentáveis. Assim, se conclui que não ouve mudança significativa na percepção dos atores com respeito à sustentabilidade do sistema de produção de arroz de terras na região.
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Öhman, Marie-Louise. "Aspects of analysis of small-sample right censored data using generalized Wilcoxon rank tests". Doctoral thesis, Umeå universitet, Statistiska institutionen, 1994. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-7313.

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The estimated bias and variance of commonly applied and jackknife variance estimators and observed significance level and power of standardised generalized Wilcoxon linear rank sum test statistics and tests, respectively, of Gehan and Prentice are compared in a Monte Carlo simulation study. The variance estimators are the permutational-, the conditional permutational- and the jackknife variance estimators of the test statistic of Gehan, and the asymptotic- and the jackknife variance estimators of the test statistic of Prentice. In unbalanced small sample size problems with right censoring, the commonly applied variance estimators for the generalized Wilcoxon rank test statistics of Gehan and Prentice may be biased. In the simulation study it appears that variance properties and observed level and power may be improved by using the jackknife variance estimator. To establish the sensitivity to gross errors and misclassifications for standardised generalized Wilcoxon linear rank sum statistics in small samples with right censoring, the sensitivity curves of Tukey are used. For a certain combined sample, which might contain gross errors, a relatively simple method is needed to establish the applicability of the inference drawn from the selected rank test. One way is to use the change of decision point, which in this thesis is defined as the smallest proportion of altered positions resulting in an opposite decision. When little is known about the shape of a distribution function, non-parametric estimates for the location parameter are found by making use of censored one-sample- and two-sample rank statistics. Methods for constructing censored small sample confidence intervals and asymptotic confidence intervals for a location parameter are also considered. Generalisations of the solutions from uncensored one-sample and two-sample rank tests are utilised. A Monte-Carlo simulation study indicates that rank estimators may have smaller absolute estimated bias and smaller estimated mean squared error than a location estimator derived from the Product-Limit estimator of the survival distribution function. The ideas described and discussed are illustrated with data from a clinical trial of Head and Neck cancer.
digitalisering@umu
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Moradi, Behrouz. "Utvärdering av tre olika metoder för Van Gieson Elastin färgning på Kolorektalcancer i syfte att identifiera venös invasion". Thesis, Örebro universitet, Institutionen för hälsovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-92919.

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Kolorektalcancer är den tredje vanligaste cancerformen hos både män och kvinnor i Sverige där storkärls invasion, venös invasion (VI), är en viktig prognostisk indikator. Noggrann bedömning av VI är särskilt viktigt för patienter med kolorektal cancer i stadium II eftersom det kan påverka beslutet att erbjuda adjuvant behandling. Histologisk bedömning av VI kan vara utmanande på rutinmässig Hematoxylin och Eosin färgning (H&E). Elastinfärgning med syfte att identifiera elastinfibrer i kärlväggen kan underlätta bedömning av VI. I dagsläget finns inte någon bra elastinfärgning som kan användas rutinmässigt hos klinisk patologi i Värmland, Centralsjukhuset Karlstad, prover måste skickas till annat laboratorium vilket är tidskrävande. Denna studie ska finna den optimala färgningsmetoden för elastin genom att utvärdera tre olika färgningsmetoder för elastin fibrer. Färgningens resultat bedömdes rent histokemiskt av överläkare enlig kriterierna, frånvaro av avsedda kärl (skala 0–1), specifik infärgning (skala 0–1), specifik infärgnings intensitet (skala 1–3) och ospecifik infärgning (skala 0–1) och data samlades för respektive metod. Resultatet tyder på att rent histokemiskt är den manuella elastinfärgning metoden från Region Jönköpings län konsekvent och visade signifikant skillnad. Därför metoden är potentiellt användbar för den större frågeställningen om storkärlsinväxt i kolorektal cancer samt rekommenderas starkt som en rutinmässig elastinfärgning till klinisk patologi i Värmland, Centralsjukhuset Karlstad.
The third most common form of cancer in both men and women in Sweden is Colorectal cancer. Prognostic indicators of colorectal cancer include Large vessel invasion and venous invasion (VI). Careful assessment of VI is of particular interest especially with patients having stage II colorectal cancer. This is because it may influence decisions to offer adjuvant therapy. Accurate histological assessment of VI can be challenging on routine hematoxylin and eosin staining. But staining that can identify the elastin fibers in the vessel can enhance the assessment of VI. Currently, there is not any good Elastin staining that can be routinely used in clinical pathology in Värmland, Karlstad Central Hospital. Therefore, samples are required to be sent to other laboratories which in effect is time consuming. This study is aimed at finding an optimal elastin staining method through evaluations of three different staining methods for elastin fibers. Staining results were assessed histochemically by the chief physician according to the following criteria, absence of intended vessels (scale 0–1), specific staining (scale 0–1), specific staining intensity (scale 1–3) and nonspecific staining (scale 0–1), while different data were collected for each method. The results indicate that purely histochemically, elastin staining-manual method Region Jönköping County is consistent and significant. Therefore, the method is potentially useful for the detection of colorectal cancer and is strongly recommended as a routine elastin staining for clinical pathology in Värmland, Karlstad Central Hospital.
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Zhang, Yan. "The impact of midbrain cauterize size on auditory and visual responses' distribution". unrestricted, 2009. http://etd.gsu.edu/theses/available/etd-04202009-145923/.

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Thesis (M.S.)--Georgia State University, 2009.
Title from file title page. Yu-Sheng Hsu, committee chair; Xu Zhang, Sarah. L. Pallas, committee members. Description based on contents viewed June 12, 2009. Includes bibliographical references (p. 37). Appendix A: SAS code: p. 38-53.
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NASCIMENTO, Rosângela Silveira do. "Análise de correlação de longo alcance no registro da atividade elétrica cortical no fenômeno da depressão alastrante em ratos". Universidade Federal Rural de Pernambuco, 2008. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5308.

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In the present work we analyze the dynamics of electrical cortical activity during the phenomenon of spreading depression (DA) and during the periods before and after this phenomenon. The characteristic of DA is reduced amplitude of spontaneous electrical activity that occurs in neural tissue after the application of stimulus that can be electrical, chemical, mechanical, luminous etc. In order to study properties of time series of electrical cortical activity recorded by ECoG (electrocortiogram) before,during and after DA, we apply Detrended Fluctuation Analysis(DFA). This method is designed to quantify long term correlations (memory) in temporal series such ECoG register. The method was successfully applied in studies of DNA sequences and non-stationary time series as heart rate variability, stride intervals, financial time series etc. The application of DFA results in scaling exponentα that quantifies correlation properties of nonlinear dynamical systems. This experiment indicates if temporal series posses long term correlations. In this work we calculate exponent α for different intervals: control (before the stimulus), after the stimulus, during the avalanche, during DA and after DA for two experimental groups of rats, nourished and malnourished. For both experimental groups the values of exponent α indicates persistent behavior for all intervals except during the avalanche in which correlations degrade. The presence of long term correlations in physiological time series observed in healthy organisms represents complexity that guaranties the organism’s adaptability to stress and disease. The absence of correlations during the avalanche indicates the loss of this complexity. Non-parametric Wilcoxon test was used to compare mean values of exponents α for all intervals of analyzed time series. In cases of nourished rats, the mean values ofα are significantly different for control, stimulus, avalanche, DA and after-DA intervals. Wilcoxon test was also used to compare mean values of α for corresponding intervals for the two experimental groups. The result is significant difference in mean values of α for control, stimulus avalanche, DA and after DA intervals between two experimental groups. The hypothesis that α =0.5 for avalanche intervals was not rejected by test, confirming the loss of correlations in this phase. Comparison of mean values of α for different intervals (control, stimulus, DA and after DA) with avalanche using the Wilcoxon test results in significant difference between two groups.
O presente estudo se propõe a analisar a dinâmica da atividade elétrica cortical durante o fenômeno da depressão alastrante (DA) e nos períodos que antecede e sucede o fenomêno. A DA é caracterizada pela redução da amplitude da atividade elétrica espontânea que ocorre no tecido neural, após a aplicação de um estímulo de natureza elétrica, química, mecânica, luminosa e outros. Visando estudar o comportamento da série temporal da atividade elétrica cortical, registrada no ECoG (eletrocorticograma), durante a DA e nos períodos que precede e sucede o fenômeno, foi aplicado o método do DFA (Detrended Fluctuation Analysis). Este método permite quantificar a existência de correlação de longo alcance (memória) numa série temporal, como é o caso do registro do ECoG. Anteriormente, o método foi aplicado em seqüências de DNA e no estudo de séries temporais não estacionárias, tais como, dinâmica da variabilidade cardíaca, flutuações de eletroencefalograma de humanos, intervalos entre passos sucessivos de humanos, séries econômicas e outros. A aplicação do DFA numa série temporal permite a determinação de um expoente de escalonamento α, que pode contribuir para a compreensão das propriedades dos sistemas dinâmicos não lineares. Este expoenteα revela se a série temporal apresenta correlação de longo alcance ou não. Neste trabalho os expoentes α foram calculados nas fases de controle, estímulo, avalanche, DA e após a DA para o ECoG, em dois grupos experimentais, ratos nutridos e ratos desnutridos. Em ambos os grupos experimentais, os valores obtidos para o expoente de escalonamento α denotam que a série temporal do ECoG apresenta correlação persistente (comportamento da série no presente se mantém no futuro) em todas as fases do processo com exceção da avalanche, período no qual ocorre perda de correlação. A presença de correlação de longo alcance numa série temporal biológica é uma resposta sempre observada em organismos saudáveis cuja complexidade do sinal registrado garante a adaptabilidade do organismo a situações de estresse e/ou distúrbios. Enquanto a ausência de correlação, observada na avalanche, indica a perda de propriedades fractais nos sistemas fisiológicos. O uso do método não-paramétrico de Wilcoxon, para comparar os valores médios dos expoentes α obtidos para o grupo de animais nutrido, durante as fases de controle, estimulação, DA, após DA, revelou que essas diferentes fasesdiferem significativamente. Os valores médios dos expoentes α obtidos para o grupo de animais desnutrido, durante as fases de controle, estimulação, DA, após DA, também não foram significativamente diferentes, quando comparados pelo método de Wilcoxon. Na comparação dos valores médios de α nas fases de controle, estimulação, DA, após DA entre os dois grupos de animais (nutrido e desnutrido) o teste de Wilcoxon revelou que as médias dos expoentes α em cada fase para os animais nutridos diferem significativamente daquelas obtidas para os animais desnutridos. Na avalanche a hipótese de que o expoente α é igual a 0,5, não foi rejeitada pelo teste de Wilcoxon, ou seja, o teste confirmou a perda de correlação nessa fase. Na comparação entre as médias dos expoentes α nos diferentes intervalos (controle, estimulação, DA, após DA) com o valor do expoente α na avalanche, o teste de Wilcoxon acusou diferença significativa tanto no grupo dos nutridos como no grupo dos desnutridos.
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FOSTER, WARREN R. "THE IMPACT OF A BIDDER WORKSHOP ON SELF-EFFICACY". University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1171310672.

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Fagerlund, Elias y Talukder Mashrukh. "Where to Invest? : Choosing the optimal stock market for investing in a cross-listed Nordic firm". Thesis, Umeå universitet, Företagsekonomi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-60556.

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The purpose of this study is to investigate whether the location of buying stocks in a Nordic cross-listed company matters in terms of 1) earning abnormal returns, or 2) gaining in optimizing the amount spent by buying the specific stock cheap. Nowadays, markets are becoming more integrated and if we believe in the efficient market hypothesis, prices of the same class of stocks paying the same dividend annually, of an MNC must be the same irrespective of the stock exchange it is listed upon. Though efficient market hypothesis exists in theory, market imperfection is a reality. All the Nordic (Swedish, Finnish, Norwegian, Danish and Icelandic) firms listed on foreign stock exchanges in addition to their home market have been included in the sample. In fact, this sample represents 100% of the population. The daily prices of cross-listed stocks have been analyzed and conclusions have been drawn based on the mean returns and mean prices along with Wilcoxon Signed-Rank test statistics. The data have been analyzed over the last ten years capturing the recent economic cycle. The whole period has also been divided into three sub-periods to establish comparisons with the whole period. This paper reports that even though returns on cross-listed stocks are statistically same over all periods, prices of the stocks vary according to the location of listing. That is, investors can buy from a stock exchange where the specific stock is underpriced thereby decreasing the amount invested in absolute term and optimizing the amount spent if not the return. The returns and prices have analyzed using the local currency of the MNC’s country of origin and Special Drawing Rights (SDRs). No considerable differences on the returns or pattern of price movements have been observed while using two currencies.
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Matsouaka, Roland Albert. "Contributions to Imputation Methods Based on Ranks and to Treatment Selection Methods in Personalized Medicine". Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10078.

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The chapters of this thesis focus two different issues that arise in clinical trials and propose novel methods to address them. The first issue arises in the analysis of data with non-ignorable missing observations. The second issue concerns the development of methods that provide physicians better tools to understand and treat diseases efficiently by using each patient's characteristics and personal biomedical profile. Inherent to most clinical trials is the issue of missing data, specially those that arise when patients drop out the study without further measurements. Proper handling of missing data is crucial in all statistical analyses because disregarding missing observations can lead to biased results. In the first two chapters of this thesis, we deal with the "worst-rank score" missing data imputation technique in pretest-posttest clinical trials. Subjects are randomly assigned to two treatments and the response is recorded at baseline prior to treatment (pretest response), and after a pre-specified follow-up period (posttest response). The treatment effect is then assessed on the change in response from baseline to the end of follow-up time. Subjects with missing response at the end of follow-up are assign values that are worse than any observed response (worst-rank score). Data analysis is then conducted using Wilcoxon-Mann-Whitney test. In the first chapter, we derive explicit closed-form formulas for power and sample size calculations using both tied and untied worst-rank score imputation, where the worst-rank scores are either a fixed value (tied score) or depend on the time of withdrawal (untied score). We use simulations to demonstrate the validity of these formulas. In addition, we examine and compare four different simplification approaches to estimate sample sizes. These approaches depend on whether data from the literature or a pilot study are available. In second chapter, we introduce the weighted Wilcoxon-Mann-Whitney test on un-tied worst-rank score (composite) outcome. First, we demonstrate that the weighted test is exactly the ordinary Wilcoxon-Mann-Whitney test when the weights are equal. Then, we derive optimal weights that maximize the power of the corresponding weighted Wilcoxon-Mann-Whitney test. We prove, using simulations, that the weighted test is more powerful than the ordinary test. Furthermore, we propose two different step-wise procedures to analyze data using the weighted test and assess their performances through simulation studies. Finally, we illustrate the new approach using data from a recent randomized clinical trial of normobaric oxygen therapy on patients with acute ischemic stroke. The third and last chapter of this thesis concerns the development of robust methods for treatment groups identification in personalized medicine. As we know, physicians often have to use a trial-and-error approach to find the most effective medication for their patients. Personalized medicine methods aim at tailoring strategies for disease prevention, detection or treatment by using each individual subject's personal characteristics and medical profile. This would result to (1) better diagnosis and earlier interventions, (2) maximum therapeutic benefits and reduced adverse events, (3) more effective therapy, and (4) more efficient drug development. Novel methods have been proposed to identify subgroup of patients who would benefit from a given treatment. In the last chapter of this thesis, we develop a robust method for treatment assignment for future patients based on the expected total outcome. In addition, we provide a method to assess the incremental value of new covariate(s) in improving treatment assignment. We evaluate the accuracy of our methods through simulation studies and illustrate them with two examples using data from two HIV/AIDS clinical trials.
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Libros sobre el tema "Wilcoxon test"

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Johnston, Frances Patricia. A study of the relative merits, by simulation, of tests for change in attitude using a median shift method, the Wilcoxon signed rank test and the sign test. [s.l: The Author], 1994.

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Doing the Wilcoxon Signed-Rank Test With the College Scorecard (2009–2013) in SPSS. 1 Oliver’s Yard, 55 City Road, London EC1Y 1SP United Kingdom: SAGE Publications, Ltd., 2018. http://dx.doi.org/10.4135/9781526437778.

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Doing the Wilcoxon Signed-Rank Test With the Health Insurance Marketplace (2014–2016) in SPSS. 1 Oliver’s Yard, 55 City Road, London EC1Y 1SP United Kingdom: SAGE Publications, Ltd., 2018. http://dx.doi.org/10.4135/9781526437952.

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Doing the Wilcoxon Signed-Rank Test With the World Development Indicators (2006–2012) in SPSS. 1 Oliver’s Yard, 55 City Road, London EC1Y 1SP United Kingdom: SAGE Publications, Ltd., 2018. http://dx.doi.org/10.4135/9781526438058.

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Capítulos de libros sobre el tema "Wilcoxon test"

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Gooch, Jan W. "Wilcoxon Signed Test". En Encyclopedic Dictionary of Polymers, 1002. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_15423.

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Neuhäuser, Markus. "Wilcoxon–Mann–Whitney Test". En International Encyclopedia of Statistical Science, 1656–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-04898-2_615.

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Rey, Denise y Markus Neuhäuser. "Wilcoxon-Signed-Rank Test". En International Encyclopedia of Statistical Science, 1658–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-04898-2_616.

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Gooch, Jan W. "Wilcoxon Rank-Sum Test". En Encyclopedic Dictionary of Polymers, 1002. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_15422.

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Gooch, Jan W. "Wilcoxon-Mann-Whitney Test". En Encyclopedic Dictionary of Polymers, 1002. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_15424.

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Holcomb, Zealure C. y Keith S. Cox. "Wilcoxon-Mann-Whitney Test". En Interpreting Basic Statistics, 207–9. Eighth edition. | New York, NY : Routledge, 2018.: Routledge, 2017. http://dx.doi.org/10.4324/9781315225647-65.

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Holcomb, Zealure C. y Keith S. Cox. "Wilcoxon Matched-Pairs Test". En Interpreting Basic Statistics, 210–12. Eighth edition. | New York, NY : Routledge, 2018.: Routledge, 2017. http://dx.doi.org/10.4324/9781315225647-66.

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Haynes, Winston. "Wilcoxon Rank Sum Test". En Encyclopedia of Systems Biology, 2354–55. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4419-9863-7_1185.

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Cox, Keith S. y Zealure C. Holcomb. "Wilcoxon-Mann-Whitney Test". En Interpreting Basic Statistics, 215–18. 9a ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003096764-64.

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Cox, Keith S. y Zealure C. Holcomb. "Wilcoxon Matched-Pairs Test". En Interpreting Basic Statistics, 219–22. 9a ed. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003096764-65.

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Actas de conferencias sobre el tema "Wilcoxon test"

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Ahad, Nor Aishah, Sharipah Soaad Syed Yahaya, Zahayu MdYusof, Suhaida Abdullah y Lim Yai Fung. "Performance of the modified Wilcoxon signed rank test". En INTERNATIONAL CONFERENCE ON QUANTITATIVE SCIENCES AND ITS APPLICATIONS (ICOQSIA 2014): Proceedings of the 3rd International Conference on Quantitative Sciences and Its Applications. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4903657.

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Golenko, Dmitry S. y Oleg V. Ampilov. "Unknown Signal Detection Based on Wilcoxon Signed-Rank Test". En 2016 International Conference on Engineering and Telecommunication (EnT). IEEE, 2016. http://dx.doi.org/10.1109/ent.2016.024.

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Kochengin, A. E., G. Chrysostomou y V. A. Shikhin. "Performance of Nonparametric Wilcoxon Test with Reference to the Samples with Singularities". En 2019 III International Conference on Control in Technical Systems (CTS). IEEE, 2019. http://dx.doi.org/10.1109/cts48763.2019.8973318.

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Krylov, Vladimir A., Gabriele Moser, Aurelie Voisin, Sebastiano B. Serpico y Josiane Zerubia. "Change detection with synthetic aperture radar images by Wilcoxon statistic likelihood ratio test". En 2012 19th IEEE International Conference on Image Processing (ICIP 2012). IEEE, 2012. http://dx.doi.org/10.1109/icip.2012.6467304.

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Liu Fang, Wang Ying, Zhang Luan-Qiao, Sun Fu-Wan, Zhang Shao-Gang, Wilton W. T. Fok, Vincent Tam y Jiaqu Yi. "Examination data analysis for open education teaching reform using Wilcoxon Rank Sum Test". En 2015 4th International Conference on Computer Science and Network Technology (ICCSNT). IEEE, 2015. http://dx.doi.org/10.1109/iccsnt.2015.7490800.

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Kusumandari, Dwi Esti, M. Faizal Amri, Artha I. S., Rina Ristiana, Maissy Jahja y Arjon Turnip. "EEG Patterns Analysis of Methadone Patients with Closed Eyes Condition using Wilcoxon Test". En International Conference on Culture Heritage, Education, Sustainable Tourism, and Innovation Technologies. SCITEPRESS - Science and Technology Publications, 2020. http://dx.doi.org/10.5220/0010339005740578.

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Zhang, Libao, Shuang Wang, Qiaoyue Sun y Aoxue Li. "Remote sensing image segmentation based on Wilcoxon rank sum test and mean absolute deviation". En IGARSS 2016 - 2016 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2016. http://dx.doi.org/10.1109/igarss.2016.7730657.

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Fetaji, Majlinda y Bekim Fetaji. "Assessing data processing using Wilcoxon signed-ranks test for polyclinic management system — Case study". En 2018 7th Mediterranean Conference on Embedded Computing (MECO). IEEE, 2018. http://dx.doi.org/10.1109/meco.2018.8405979.

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Liao, Chen, Shutao Li y Zhiyuan Luo. "Gene Selection for Cancer Classification using Wilcoxon Rank Sum Test and Support Vector Machine". En 2006 International Conference on Computational Intelligence and Security. IEEE, 2006. http://dx.doi.org/10.1109/iccias.2006.294156.

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Wang, Yan y Lu Tian. "The equivalence between Mann-Whitney Wilcoxon test and score test based on the proportional odds model for ordinal responses". En 2017 4th International Conference on Industrial Economics System and Industrial Security Engineering (IEIS). IEEE, 2017. http://dx.doi.org/10.1109/ieis.2017.8078606.

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Informes sobre el tema "Wilcoxon test"

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Chen, Juo-Fu. Benchmarking of flowtran with Mark-22 mockup flow excursion test data from Babcock Wilcox. Office of Scientific and Technical Information (OSTI), junio de 1990. http://dx.doi.org/10.2172/5035326.

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Chen, K. F. Benchmarking of FLOWTRAN with Mark-22 mockup flow excursion test data from Babcock Wilcox. Office of Scientific and Technical Information (OSTI), noviembre de 1991. http://dx.doi.org/10.2172/6621324.

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Chen, K. F. Benchmarking of FLOWTRAN with Mark-22 mockup flow excursion test data from Babcock & Wilcox. Office of Scientific and Technical Information (OSTI), noviembre de 1991. http://dx.doi.org/10.2172/10141167.

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Chen, Juo-Fu. Benchmarking of flowtran with Mark-22 mockup flow excursion test data from Babcock & Wilcox. Office of Scientific and Technical Information (OSTI), junio de 1990. http://dx.doi.org/10.2172/10163326.

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Chen, Kuo-Fu. Effect of flow leakage on the benchmarking of FLOWTRAN with Mark-22 mockup flow excursion test data from Babcock and Wilcox. Office of Scientific and Technical Information (OSTI), octubre de 1992. http://dx.doi.org/10.2172/10169734.

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Chen, Kuo-Fu. Effect of flow leakage on the benchmarking of FLOWTRAN with Mark-22 mockup flow excursion test data from Babcock and Wilcox. Office of Scientific and Technical Information (OSTI), octubre de 1992. http://dx.doi.org/10.2172/6293329.

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