Comprehensive evaluation of error correction methods for high-throughput sequencing data
Manikandan, Gowthami Jayashri
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https://hdl.handle.net/2142/97787
Description
Title
Comprehensive evaluation of error correction methods for high-throughput sequencing data
Author(s)
Manikandan, Gowthami Jayashri
Issue Date
2017-04-27
Director of Research (if dissertation) or Advisor (if thesis)
Chen, Deming
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Computational genomics
Algorithms
Parallel computing
Abstract
The advent of DNA and RNA sequencing has significantly revolutionized the study of genomics and molecular biology. Development of high-throughput sequencing technologies have brought about a quick and cheaper way to sequence genomes. Different technologies use different underlying methods for sequencing and are prone to different error rates. Though many tools exist for error correction in high-throughput sequencing data, no standard technology-independent method is available yet to evaluate the accuracy and effectiveness of these error correction tools. In order to supply a standard way to evaluate error correction methods for DNA and RNA sequencing, this thesis presents a Software Package for Error Correction Tool Assessment on nuCLEic acid sequences (SPECTACLE). SPECTACLE can evaluate corrected DNA and RNA reads from many underlying sequencing technologies and differentiate heterozygous alleles from sequencing errors. The work provides some key insights on many factors that stress the challenges in error correction by compiling high-throughput sequencing read sets from technologies like Illumina, PacBio and ONT. The performances of 23 different error correction tools have been analyzed using SPECTACLE and the compiled datasets. This thesis also provides unique and helpful insights into the strengths and weaknesses of various error correction tools and aims to establish a standard platform for evaluating error correction tools in the future.
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