title: Wavelet-based gene selection method for survival prediction in diffuse large B-cell lymphomas patients.
abstract: Microarray technology allows simultaneous measurements of expression levels for thousands of genes. An important aspect of microarray studies includes the prediction of patient survival based on their gene expression profile. This naturally calls for the use of a dimension reduction procedure together with the survival prediction model. In this study, a new method based on wavelet transform for survival-relevant gene selection is presented. Cox proportional hazard model is typically used to build prediction model for patients' survival using the selected genes. The prediction model will be evaluated with the R2, concordance index, likelihood ratio statistic and Akaike information criteria. The results proved that good performance of survival prediction is achieved based on the selected genes. The results suggested the possibility of developing more advanced tools based on wavelets for gene selection from microarray data sets in the context of survival analysis.
authors.forename: Maryam
authors.initials: M
authors.lastname: Farhadian
authors.forename: Hossein
authors.initials: H
authors.lastname: Mahjub
authors.forename: Abbas
authors.initials: A
authors.lastname: Moghimbeigi
authors.forename: Paulo J G
authors.initials: PJ
authors.lastname: Lisboa
authors.forename: Jalal
authors.initials: J
authors.lastname: Poorolajal
authors.forename: Muharram
authors.initials: M
authors.lastname: Mansoorizadeh
mesh_terms: D000465:Algorithms; D014408:Biomarkers, Tumor / Q000378:metabolism*; D020869:Gene Expression Profiling / Q000379:methods*; D006801:Humans; D016393:Lymphoma, B-Cell / Q000378:metabolism* / Q000401:mortality*; D010363:Pattern Recognition, Automated / Q000379:methods; D011379:Prognosis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D016019:Survival Analysis; D058067:Wavelet Analysis
chemical_list: D014408:Biomarkers, Tumor