This paper establishes a necessary and sufficient condition for the coincidence of non-commutative \(\log \) -algebras constructed from different faithful normal semifinite traces. Consequently, we provide a criterion for the isomorphism of \(\log \) -algebras built on non-commutative von Neumann algebras with different faithful normal semifinite traces. Additionally, we demonstrate a connection between the isomorphism of non-commutative \(\log \) -algebras and the isomorphism of the corresponding \(\log \) -algebras constructed on the center of these von Neumann algebras. Furthermore, we present a necessary and sufficient condition for the isomorphism of \(\log \) -algebras derived from different von Neumann algebras of type \(I_n\) .