5 citations · 12 across the 7 of their papers we have counts for
7 papers
An Efficient Model Selection for Gaussian Mixture Model in a Bayesian Framework
Ji Won Yoon
In order to cluster or partition data, we often use Expectation-and-Maximization (EM) or Variational approximation with a Gaussian Mixture Model (GMM), which is a parametric probab…
A data mining approach using transaction patterns for card fraud detection
Chae Chang Lee, Ji Won yoon
Credit and debit cards, rather than actual money, have become the universal payment means. With these cards, it has become possible to buy expensive items easily without an additio…
Statistical Denoising for single molecule fluorescence microscopic images
Ji Won Yoon
Single molecule fluorescence microscopy is a powerful technique for uncovering detailed information about biological systems, both in vitro and in vivo. In such experiments, the in…
Efficient Estimation of the number of neighbours in Probabilistic K Nearest Neighbour Classification
Ji Won Yoon, Nial Friel
Probabilistic k-nearest neighbour (PKNN) classification has been introduced to improve the performance of original k-nearest neighbour (KNN) classification algorithm by explicitly…
Bayesian ICA-based source separation of Cosmic Microwave Background by a discrete functional approximation
Simon P. Wilson, Jiwon Yoon
A functional approximation to implement Bayesian source separation analysis is introduced and applied to separation of the Cosmic Microwave Background (CMB) using WMAP data. The ap…
How to Compare the Scientific Contributions between Research Groups
Hyoungshick Kim, Ji Won Yoon
We present a method to analyse the scientific contributions between research groups. Given multiple research groups, we construct their journal/proceeding graphs and then compute t…