Modelo modificado de urna reforzada aleatoriamente (MRRU) y su aplicación en la asignación aleatoria de pacientes a tratamientos médicos
| dc.contributor.advisor | Blanco Castañeda, Liliana | spa |
| dc.contributor.author | Rodríguez Arango, Emiliano | spa |
| dc.contributor.researchgroup | Procesos Estocásticos | spa |
| dc.date.accessioned | 2021-02-22T20:50:18Z | spa |
| dc.date.available | 2021-02-22T20:50:18Z | spa |
| dc.date.issued | 2020-07-30 | spa |
| dc.description.abstract | In this paper we present a study of an response-adaptive design study described in terms of a two-color ball urn model. Through simulations, possible advantages of this design were explored by modifying the values of the initialization parameters. An exploratory analysis of the number of patients assigned to the lower treatment by the design was made and the power of the hypothesis test carried out to compare the two treatments considered was explored. It was found that within the initialization parameters considered those that presented the lowest values of the calculated statistics were = 0:9 and = 0:9. As for the power of the hypothesis test, it was found that they were practically the same (values very close together) for each one of the choices of and considered, under the same diference of the means and the same sample size. | spa |
| dc.description.abstract | En este trabajo se presenta un estudio de un diseño de respuesta adaptada descrito en términos de un modelo de urna de dos colores. A través de simulaciones se exploraron posibles ventajas de este diseño modi cando los valores de los parámetros de inicialización. Posteriormente se llevó a cabo un análisis exploratorio del número de pacientes asignados al tratamiento inferior por parte del diseño y se exploró la potencia de la prueba de hipótesis realizada para comparar los dos tratamientos considerados. Se encontró que, dentro de los parámetros de inicialización considerados, los que presentaron los valores más bajos de los estadísticos calculados fueron = 0:9 y = 0:9. En cuanto a la potencia de la prueba de hipótesis se encontró que eran prácticamente iguales (valores muy cercanos entre ellas) para cada una de las escogencias de y consideradas, bajo una misma diferencia de medias y un mismo tamaño de muestra. | spa |
| dc.description.additional | Línea de Investigación: Procesos estocásticos | spa |
| dc.description.degreelevel | Maestría | spa |
| dc.format.extent | 1 recurso en línea (68 páginas) | spa |
| dc.format.mimetype | application/pdf | spa |
| dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/79283 | |
| dc.language.iso | spa | spa |
| dc.publisher.branch | Universidad Nacional de Colombia - Sede Bogotá | spa |
| dc.publisher.department | Departamento de Estadística | spa |
| dc.publisher.program | Bogotá - Ciencias - Maestría en Ciencias - Estadística | spa |
| dc.relation.references | Aletti, G., Ghiglietti, A., y Paganoni, A. (2011). A modi ed randomly reinforced urn design. MOX{Report No. 32. | spa |
| dc.relation.references | Beggs, A. (2005). On the convergence of reinforcement learning. Journal of Economic Theory, 122(1):1 { 36. | spa |
| dc.relation.references | Blanco, L., Arunachalam, V., y Selvamuthu, D. (2012). Introduction to Probability and Stochastic Processes with Applications. John Wiley Sons, Inc | spa |
| dc.relation.references | Gallo, P., Chuang-Stein, C., Dragalin, V., Gaydos, B., Krams, M., y Pinheiro, J. (2006). Adaptive designs in clinical drug development|an executive summary of the pharma working group. Journal of Biopharmaceutical Statistics, 16(3):275{283. PMID: 16724485. | spa |
| dc.relation.references | Ghiglietti, A. y Paganoni, A. (2014). Statistical properties of two-color randomly reinforced urn design targeting xed allocations. Electronic Journal of Statistics [electronic only], 8. | spa |
| dc.relation.references | Ghiglietti, A., Scarale, M., Miceli, R., Ieva, F., Mariani, L., Gavazzi, C., Paganoni, A., y Edefonti, V. (2018). Urn models for response-adaptive randomized designs: a simulation study based on a non-adaptive randomized trial. Journal of Biopharmaceutical Statistics, 28(6):1203{1215. | spa |
| dc.relation.references | Jacod, J. y Protter, P. (2004). Probability essentials. 2nd revised ed, Springer. | spa |
| dc.relation.references | Johnson, N. L. y Kotz, S. (1977). Urn models and their application|an approach to modern discrete probability theory, new york: Wiley. | spa |
| dc.relation.references | Mahmoud, H. (2008). Polya Urn Models. Chapman Hall/CRC, 1 edition. | spa |
| dc.relation.references | May, C. y Flournoy, N. (2009). Asymptotics in response-adaptive designs generated by a two-color, randomly reinforced urn. Ann. Statist., 37(2):1058{1078. | spa |
| dc.relation.references | Mel , V., Page, C., y Geraldes, M. (2000). An adaptive randomized design with application to estimation. Can. J. Statist., 29. | spa |
| dc.relation.references | Muliere, P., Paganoni, A., y Secchi, P. (2006). A randomly reinforced urn. Journal of Statistical Planning and Inference, 136:1853{1874. | spa |
| dc.relation.references | Muliere, P. y Secchi, A. (2006). Randomly reinforced urns for clinical trials with continuous responses, Dipartimento di Matematica, Politecnico di Milan. | spa |
| dc.relation.references | Paganoni, A. y Secchi, P. (2007). A numerical study for comparing two response-adaptive designs for continuous treatment effects. Statistical Methods and Applications, 16:321{346. | spa |
| dc.relation.references | Park, H. M. (2010). Hypothesis testing and statistical power of a test. The University Information Technology Services (UITS) Center for Statistical and Mathematical Computing, Indiana University. | spa |
| dc.relation.references | Pontes, C., Ríos, J., y Torres, F. (2013). Luces y sombras en la investigación clínica, Nuevos diseños en investigación clínica, Desa fios y oportunidades. Triacastela. | spa |
| dc.relation.references | Resnick, S. (2001). A Probability Path. Birkh auser. | spa |
| dc.relation.references | Rincón, L. (2012). Introducción a los procesos estocásticos. Departamento de Matemáticas, Facultad de Ciencias UNAM, Circuito Exterior de CU04510 México DF. | spa |
| dc.relation.references | Rosenberger, W. (2002). Randomized urn models and sequential design. (with comments and rejoinder). Sequential Analysis, 21. | spa |
| dc.relation.references | Garegnani, L., Arancibia, M., Madrid Aris, E., y Franco, J. (2020). Ensayos clínicos con análisis secuencial y su interrupción precoz ¿cómo interpretarlos? Medwave, 20:e7930. | spa |
| dc.relation.references | Viada, C., López, M., Robaina, M., Luaces, P., Crombet, T., Abraham, A., Brito, B., Pérez, L., Troche, M., y Dávila, A. (2009). Diseños adaptativos para ensayos clínicos fase ii o iii en pacientes con cáncer en Cuba. Investigación Operacional, ISSN 0257-4306, Vol. 30, No 3, 2009, págs. 205-213. | spa |
| dc.relation.references | Weiss, N. (2012). Introductory Statistics. 9th edition. | spa |
| dc.relation.references | Zelen, M. (1969). Play the winner rule and the controlled clinical trial. Journal of the American Statistical Association, 64(325):131{146. | spa |
| dc.relation.references | Zhang, D. (2009). Statistical principles of clinical trials. Lecture Notes (Modi ed from Dr. A. Tsiatis' Lecture Notes) Department of Statistics North Carolina State University. | spa |
| dc.relation.references | Zhang, L.-X., Hu, F., y Cheung, S. H. (2006). Asymptotic theorems of sequential estimation adjusted urn models. Ann. Appl. Probab., 16(1):340{369. | spa |
| dc.rights | Derechos reservados - Universidad Nacional de Colombia | spa |
| dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
| dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional | spa |
| dc.rights.spa | Acceso abierto | spa |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | spa |
| dc.subject.ddc | 510 - Matemáticas::519 - Probabilidades y matemáticas aplicadas | spa |
| dc.subject.proposal | Urn Model | spa |
| dc.subject.proposal | Urn Model | eng |
| dc.subject.proposal | Diseño de respuesta adaptada | spa |
| dc.subject.proposal | Response Adaptive Designs | eng |
| dc.subject.proposal | Modelo RRU | spa |
| dc.subject.proposal | RRU Model | eng |
| dc.subject.proposal | Modelo MRRU | spa |
| dc.title | Modelo modificado de urna reforzada aleatoriamente (MRRU) y su aplicación en la asignación aleatoria de pacientes a tratamientos médicos | spa |
| dc.type | Trabajo de grado - Maestría | spa |
| dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | spa |
| dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa | spa |
| dc.type.content | Text | spa |
| dc.type.driver | info:eu-repo/semantics/masterThesis | spa |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | spa |
| oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |

