Microarray Missing Data Imputation based on a Set Theoretic Framework and Biological Constraints
File version
Author(s)
Liew, Alan Wee-Chung
Yan, Hong
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Tang, YY
Wang, SP
Lorette, G
Yeung, DS
Yan, H
Date
Size
141846 bytes
File type(s)
application/pdf
Location
Hong Kong, PEOPLES R CHINA
License
Abstract
Gene expressions measured using microarrays usually suffer from the missing value problem. Existing missing value imputation algorithms have some limitations. For example, some algorithms have good performance only when strong local correlation exists in data while some provide the best estimate when data is dominated by a global structure. In addition, these algorithms do not take into account many biological constraints in the imputation procedure. In this paper, we propose a set theoretic framework for missing data imputation. We design our algorithm by taking into consideration the biological characteristic of the data and exploit the local correlation and the global correlation structure adaptively. Experiments show that our algorithm can achieve a significant reduction of error compared with existing methods.
Journal Title
Conference Title
18TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOL 3, PROCEEDINGS
Book Title
Edition
Volume
3
Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
© 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.