TY - GEN

T1 - On the duplication distance of binary strings

AU - Alon, Noga

AU - Bruck, Jehoshua

AU - Farnoud, Farzad

AU - Jain, Siddharth

PY - 2016/8/10

Y1 - 2016/8/10

N2 - We study the tandem duplication distance between binary sequences and their roots. This distance is motivated by genomic tandem duplication mutations and counts the smallest number of tandem duplication events that are required to take one sequence to another. We consider both exact and approximate tandem duplications, the latter leading to a combined duplication/Hamming distance. The paper focuses on the maximum value of the duplication distance to the root. For exact duplication, denoting the maximum distance to the root of a sequence of length n by f(n), we prove that f(n) = Θ(n). For the case of approximate duplication, where a β-fraction of symbols may be duplicated incorrectly, we show using the Plotkin bound that the maximum distance has a sharp transition from linear to logarithmic in n at β = 1/2.

AB - We study the tandem duplication distance between binary sequences and their roots. This distance is motivated by genomic tandem duplication mutations and counts the smallest number of tandem duplication events that are required to take one sequence to another. We consider both exact and approximate tandem duplications, the latter leading to a combined duplication/Hamming distance. The paper focuses on the maximum value of the duplication distance to the root. For exact duplication, denoting the maximum distance to the root of a sequence of length n by f(n), we prove that f(n) = Θ(n). For the case of approximate duplication, where a β-fraction of symbols may be duplicated incorrectly, we show using the Plotkin bound that the maximum distance has a sharp transition from linear to logarithmic in n at β = 1/2.

UR - http://www.scopus.com/inward/record.url?scp=84985916609&partnerID=8YFLogxK

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U2 - 10.1109/ISIT.2016.7541301

DO - 10.1109/ISIT.2016.7541301

M3 - Conference contribution

AN - SCOPUS:84985916609

T3 - IEEE International Symposium on Information Theory - Proceedings

SP - 260

EP - 264

BT - Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2016 IEEE International Symposium on Information Theory, ISIT 2016

Y2 - 10 July 2016 through 15 July 2016

ER -