12 citations
5 papers
A More Precise Elbow Method for Optimum K-means Clustering
Indra Herdiana, M Alfin Kamal, Triyani +2
K-means clustering is an unsupervised clustering method that requires an initial decision of number of clusters. One method to determine the number of clusters is the elbow method,…
Long-Term Evolution of Magnetic Fields in Flaring Active Region NOAA 12673
Johan Muhamad, Muhamad Zamzam Nurzaman, Tiar Dani +1
During the lifetime of AR 12673, its magnetic field evolved drastically and produced numerous large flares. In this study, using full maps of the Sun observed by the Solar Dynamics…
A New Left-Right Symmetry Model
Apriadi Salim Adam, Akmal Ferdiyan, Mirza Satriawan
We propose a new L-R symmetry model where the L-R symmetry transformation reverses both the L-R chirality and the local quantum number. We add to the model a global quantum number…
On the -boundedness of solution operator families for two-phase Stokes resolvent equations
Sri Maryani, Hirokazu Saito
The aim of this paper is to show the existence of -bounded solution operator families for two-phase Stokes resolvent equations in , where are…
Two dimension porous media reconstruction using granular model under influence of gravity
Pury Sundari, Umar Fauzi, Zaroh Irayani +1
Modeling of pores generation in 2-D with granular grains using molecular dynamics method is reported in this work. Grains with certain diameter distribution are let falling due to…