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Title: Hierarchical cancer heterogeneity analysis based on histopathological imaging features
Abstract In cancer research, supervised heterogeneity analysis has important implications. Such analysis has been traditionally based on clinical/demographic/molecular variables. Recently, histopathological imaging features, which are generated as a byproduct of biopsy, have been shown as effective for modeling cancer outcomes, and a handful of supervised heterogeneity analysis has been conducted based on such features. There are two types of histopathological imaging features, which are extracted based on specific biological knowledge and using automated imaging processing software, respectively. Usingbothtypes of histopathological imaging features, our goal is to conduct the first supervised cancer heterogeneity analysisthat satisfies a hierarchical structure. That is, the first type of imaging features defines a rough structure, and the second type defines a nested and more refined structure. A penalization approach is developed, which has been motivated by but differs significantly from penalized fusion and sparse group penalization. It has satisfactory statistical and numerical properties. In the analysis of lung adenocarcinoma data, it identifies a heterogeneity structure significantly different from the alternatives and has satisfactory prediction and stability performance.  more » « less
Award ID(s):
1916251
PAR ID:
10364142
Author(s) / Creator(s):
 ;  ;  ;  ;  ;  
Publisher / Repository:
Oxford University Press
Date Published:
Journal Name:
Biometrics
Volume:
78
Issue:
4
ISSN:
0006-341X
Format(s):
Medium: X Size: p. 1579-1591
Size(s):
p. 1579-1591
Sponsoring Org:
National Science Foundation
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