@techreport{TR-IC-PFG-18-19, number = {IC-PFG-18-19}, author = {Victor de Araujo Velloso and Andre Rodrigues Oliveira and Zanoni Dias}, title = {{Using Reinforcement Learning on Genome Rearrangement Problems}}, month = {December}, year = {2018}, institution = {Institute of Computing, University of Campinas}, note = {In English, 13 pages. \par\selectlanguage{english}\textbf{Abstract} Genome Rearrangement Problems compare different genomes considering events of mutations affecting a large segment of their DNA structure. Some examples of mutations are deletions, insertions, reversals, and transpositions. To make this comparison, genomes are considered as a group of blocks, formed by one or more genes, that are conserved between the genomes compared. By representing these blocks as numbers, and considering that there are no repeated blocks, we obtain permutations, and the distance between two genomes is the minimum number of rearrangements events required to transform one permutation into the other. Depending on the rearrangement events considered this problem becomes $\mathcal{NP}$-hard, so finding approximation algorithms with a low factor to solve this problem is of interest. In this work, we estimate the distance in permutations of length 10 and 15 using different Reinforcement Learning algorithms. The rearrangement events considered here were reversals and transpositions. We compare the performance and the results of each method with either the exact distance or the distance estimated by other approximation algorithms in the literature. } }