Control Systems and Computers, N2-3, 2021, Стаття 8

Control Systems and Computers, 2021, Issue 2-3 (292-293), pp. 20-27.

UDC 519.6

Ye.V. VODOLAZSKIY Senior Research Associate,
International Research and Training Centre of Information
Technologies and Systems of the NAS and MES of Ukraine,
Glushkovave., 40, Kyiv, 03187, Ukraine, waterlaz@gmail.com

A Modification of the Frechet Distance for Nonisomorphic Trees

The paper presents a modification of the Frechet distance for nonisomorphic trees. While the classical Frechet distance between nonisomorphic trees is undefined, a new measure called similarity of a tree to a reference tree is given that is defined for a wider class of trees. A polynomial-time algorithm is given to determine whether one tree’s similarity to another is less than a given number.

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Keywords: computational geometry, Frechet distance, trees.

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Received 01.06.2021