학술논문

Kimimila: A New Model to Classify NGS Short Reads by Their Allele Origin
Document Type
Conference
Source
2014 IEEE International Conference on Healthcare Informatics Healthcare Informatics (ICHI), 2014 IEEE International Conference on. :340-342 Sep, 2014
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Signal Processing and Analysis
Bioinformatics
Genomics
Reliability
Accuracy
Classification algorithms
Sequential analysis
Geometry
Healthcare
knowledge
inference
Language
Abstract
Next generation sequencing (NGS) technologies, often referred to as massively parallel sequencing, are having a huge impact on genomics and clinical applications. These technologies generate billions of short sequences (reads) that are consequently mapped to their corresponding reference genome to find out known and/or novel genomic variants potentially correlated to patients phenotype. DNA fragment library is usually derived from a diploid genome: we refer to genotyping on NGS data as the analytical process to assign the zygosity of identified variants. Current algorithms typically rely on data of the single genomic locus where variants have been called and are based on the condition of independence between variant locus and reads. These strong assumptions might bring to possible inaccuracies throughout the genotyping process. We have therefore developed an efficient assumption-free algorithm based on a kinetic model approach and distance geometry (Kimimila) that delivers the belonging allele for each read using the inference provided by the measure of differences (i.e. Variants) among overlapping reads.