Results 211 to 220 of about 30,970,765 (331)

K-means clustering algorithm and improvement methods [PDF]

This article introduces the K-means clustering algorithm as well as several improved K-means methods, including: K-means++, Incremental K-means and Kernel K-means, and describes application scenarios for the K- means ...
German, Y. O., Zhang Hengrui
core  

Unlabeled but Not Unseen: Cytotoxicity Classification of Re(I) Tricarbonyl Complexes via K‑Means Clustering. [PDF]

ACS Omega
Nedyalkova M, Demirci G, Cortat Y, Abraha L, Crochet A, Lattuada M, Zobi F.   +6 more
europepmc   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Bootstrap-based K-means feature selection strategy for fuzzy regression functions. [PDF]

Sci Rep
Ucan A, Yildiz D, Tak N.
europepmc   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Evaluation of Growth and Performance Traits in Limousin Weaned Bull Calves Using K-Means Clustering. [PDF]

Animals (Basel)
Demény MJ, Brassó DL, Fazekas N, Tőzsér J.   +3 more
europepmc   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

K-Means Community Detection Algorithm Based on Density Peaks. [PDF]

Entropy (Basel)
Gao H, Han J, Liu Y, Zhang P, Yang B, Zu Y, Liu F, Qian Y.   +7 more
europepmc   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Breathing K-Means: Superior K-Means Solutions through Dynamic K-Values [PDF]

We introduce the breathing k-means algorithm, which on average significantly improves solutions obtained by the widely-known greedy k-means++ algorithm, the default method for k-means clustering in the scikit-learn package.
Fritzke, Bernd
core