Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Text availability

Article attribute

Article type

Publication date

Search Results

1,268 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Results By Year timeline is not available.
Page 1
Generalized Ordinal Patterns and the KS-Entropy.
Gutjahr T, Keller K. Gutjahr T, et al. Among authors: keller k. Entropy (Basel). 2021 Aug 23;23(8):1097. doi: 10.3390/e23081097. Entropy (Basel). 2021. PMID: 34441237 Free PMC article.
The general reason for this is that, roughly speaking, the system of ordinal patterns obtained for a real-valued "measuring arrangement" has high potential for separating orbits. Starting from a slightly different approach of A. Antoniouk, K. Keller and S. Maksymenk …
The general reason for this is that, roughly speaking, the system of ordinal patterns obtained for a real-valued "measuring arrangement" has …
On Rényi Permutation Entropy.
Gutjahr T, Keller K. Gutjahr T, et al. Among authors: keller k. Entropy (Basel). 2021 Dec 24;24(1):37. doi: 10.3390/e24010037. Entropy (Basel). 2021. PMID: 35052063 Free PMC article.
Ordinal symbolic analysis and its application to biomedical recordings.
Amigó JM, Keller K, Unakafova VA. Amigó JM, et al. Among authors: keller k. Philos Trans A Math Phys Eng Sci. 2015 Feb 13;373(2034):20140091. doi: 10.1098/rsta.2014.0091. Philos Trans A Math Phys Eng Sci. 2015. PMID: 25548264 Free PMC article. Review.
Injection Site Matters: A Comparative Analysis of Transpulmonary Thermodilution via Simultaneous Femoral and Jugular Indicator Injections under Veno-Venous Extracorporeal Membrane Oxygenation Therapy.
Kopp S, Windschmitt J, Schnauder L, Münzel T, Keller K, Karbach S, Hobohm L, Lurz P, Sagoschen I, Wild J. Kopp S, et al. Among authors: keller k. J Clin Med. 2024 Apr 17;13(8):2334. doi: 10.3390/jcm13082334. J Clin Med. 2024. PMID: 38673607 Free PMC article.
1,268 results