{"id":{"repo_id":"uthsc","oai_identifier":"oai:digitalcommons.library.tmc.edu:utgsbs_dissertations-1373"},"canonical_url":"https://search.dev.ndltd.org/etd/uthsc/oai:digitalcommons.library.tmc.edu:utgsbs_dissertations-1373","repository":{"repo_id":"uthsc","name":"University of Texas Health Science Center at Houston","base_url":"https://digitalcommons.library.tmc.edu/do/oai/"},"display":{"title":"Development of Novel Methods to Minimize The Impact of Sequencing Errors In The Next-Generation Sequencing Data Analysis","abstract":"<p>Next-generation sequencing (NGS) technology has become a prominent tool in biological and biomedical research. However, NGS data analysis, such as <em>de novo</em> assembly, mapping and variants detection is far from maturity, and the high sequencing error-rate is one of the major problems. .</p> <p>To minimize the impact of sequencing errors, we developed a highly robust and efficient method, MTM, to correct the errors in NGS reads. We demonstrated the effectiveness of MTM on both single-cell data with highly non-uniform coverage and normal data with uniformly high coverage, reflecting that MTM’s performance does not rely on the coverage of the sequencing reads. MTM was also compared with Hammer and Quake, the best methods for correcting non-uniform and uniform data respectively. For non-uniform data, MTM outperformed both Hammer and Quake. For uniform data, MTM showed better performance than Quake and comparable results to Hammer. By making better error correction with MTM, the quality of downstream analysis, such as mapping and SNP detection, was improved.</p> <p>SNP calling is a major application of NGS technologies. However, the existence of sequencing errors complicates this process, especially for the low coverage (</p>","abstract_html":"&lt;p&gt;Next-generation sequencing (NGS) technology has become a prominent tool in biological and biomedical research. However, NGS data analysis, such as &lt;em&gt;de novo&lt;/em&gt; assembly, mapping and variants detection is far from maturity, and the high sequencing error-rate is one of the major problems. .&lt;/p&gt; &lt;p&gt;To minimize the impact of sequencing errors, we developed a highly robust and efficient method, MTM, to correct the errors in NGS reads. We demonstrated the effectiveness of MTM on both single-cell data with highly non-uniform coverage and normal data with uniformly high coverage, reflecting that MTM’s performance does not rely on the coverage of the sequencing reads. MTM was also compared with Hammer and Quake, the best methods for correcting non-uniform and uniform data respectively. For non-uniform data, MTM outperformed both Hammer and Quake. For uniform data, MTM showed better performance than Quake and comparable results to Hammer. By making better error correction with MTM, the quality of downstream analysis, such as mapping and SNP detection, was improved.&lt;/p&gt; &lt;p&gt;SNP calling is a major application of NGS technologies. However, the existence of sequencing errors complicates this process, especially for the low coverage (&lt;/p&gt;","abstract_has_math":false,"creators":["Zheng, Xiaofeng"],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Dissertation (PhD)","degree_discipline":null,"degree_department":null,"school":null,"contributors":["Shoudan Liang","Peter Mueller","Yuan Ji"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013-05-01T07:00:00Z","date_published":"2013-05-01T07:00:00Z","updated_at":"2026-07-24T05:50:38Z","subjects":["next-generation sequencing","sequencing error","error correction","SNP detection","Bioinformatics","Biostatistics"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.library.tmc.edu/utgsbs_dissertations/338","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Shoudan Liang","Peter Mueller","Yuan Ji"]},{"key":"dc:creator","label":"Author","values":["Zheng, Xiaofeng"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2014-04-24T07:00:00Z"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation (PhD)"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["next-generation sequencing","sequencing error","error correction","SNP detection","Bioinformatics","Biostatistics"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.library.tmc.edu/utgsbs_dissertations/338"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["<p>Next-generation sequencing (NGS) technology has become a prominent tool in biological and biomedical research. However, NGS data analysis, such as <em>de novo</em> assembly, mapping and variants detection is far from maturity, and the high sequencing error-rate is one of the major problems. .</p> <p>To minimize the impact of sequencing errors, we developed a highly robust and efficient method, MTM, to correct the errors in NGS reads. We demonstrated the effectiveness of MTM on both single-cell data with highly non-uniform coverage and normal data with uniformly high coverage, reflecting that MTM’s performance does not rely on the coverage of the sequencing reads. MTM was also compared with Hammer and Quake, the best methods for correcting non-uniform and uniform data respectively. For non-uniform data, MTM outperformed both Hammer and Quake. For uniform data, MTM showed better performance than Quake and comparable results to Hammer. By making better error correction with MTM, the quality of downstream analysis, such as mapping and SNP detection, was improved.</p> <p>SNP calling is a major application of NGS technologies. However, the existence of sequencing errors complicates this process, especially for the low coverage (</p>"]},{"key":"dc:title","label":"Title","values":["Development of Novel Methods to Minimize The Impact of Sequencing Errors In The Next-Generation Sequencing Data Analysis"]}]}],"canonical_facts":{"dc:contributor":["Shoudan Liang","Peter Mueller","Yuan Ji"],"dc:creator":["Zheng, Xiaofeng"],"dc:date.available":["2014-04-24T07:00:00Z"],"dc:description.abstract":["<p>Next-generation sequencing (NGS) technology has become a prominent tool in biological and biomedical research. However, NGS data analysis, such as <em>de novo</em> assembly, mapping and variants detection is far from maturity, and the high sequencing error-rate is one of the major problems. .</p> <p>To minimize the impact of sequencing errors, we developed a highly robust and efficient method, MTM, to correct the errors in NGS reads. We demonstrated the effectiveness of MTM on both single-cell data with highly non-uniform coverage and normal data with uniformly high coverage, reflecting that MTM’s performance does not rely on the coverage of the sequencing reads. MTM was also compared with Hammer and Quake, the best methods for correcting non-uniform and uniform data respectively. For non-uniform data, MTM outperformed both Hammer and Quake. For uniform data, MTM showed better performance than Quake and comparable results to Hammer. By making better error correction with MTM, the quality of downstream analysis, such as mapping and SNP detection, was improved.</p> <p>SNP calling is a major application of NGS technologies. However, the existence of sequencing errors complicates this process, especially for the low coverage (</p>"],"dc:identifier":["https://digitalcommons.library.tmc.edu/utgsbs_dissertations/338"],"dc:subject":["next-generation sequencing","sequencing error","error correction","SNP detection","Bioinformatics","Biostatistics"],"dc:title":["Development of Novel Methods to Minimize The Impact of Sequencing Errors In The Next-Generation Sequencing Data Analysis"],"thesis:degree_level":["Dissertation (PhD)"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T05:50:38Z"}