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Analysis of failure time data with missing and informative auxiliary covariates.
Title
Analysis of failure time data with missing and informative auxiliary covariates.
Author
Ghosh, Lipika
Date Created
2011
Subjects--Topical
Statistics, Mathematics, Biometry
Description
In this dissertation we use Cox's regression model to failure time data with continuous informative auxiliary variables in the presence of a validation subsample. The work is motivated by a common problem of missing or mismeasured covariates in su...
STUDY OF HYBRID STRATEGIES FOR MULTI-OBJECTIVE OPTIMIZATION USING GRADIENT BASED METHODS AND EVOLUTIONARY ALGORITHMS
Title
STUDY OF HYBRID STRATEGIES FOR MULTI-OBJECTIVE OPTIMIZATION USING GRADIENT BASED METHODS AND EVOLUTIONARY ALGORITHMS
Author
Paez Bautista, Diego
Date Created
2013
Subjects--Topical
Mechanical engineering, Mathematics
Description
Most of the optimization problems encountered in engineering have conflicting objectives. In order to solve these problems, genetic algorithms (GAs) and gradient-based methods are widely used. GAs are relatively easy to implement, because these al...