63 citations · 351 across the 34 of their papers we have counts for
4 papers · 1 filter
TiK-means: -means clustering for skewed groups
Nicholas S. Berry, Ranjan Maitra
The -means algorithm is extended to allow for partitioning of skewed groups. Our algorithm is called TiK-Means and contributes a -means type algorithm that assigns observatio…
Visualization of Labeled Mixed-featured Datasets
Yifan Zhu, Fan Dai, Ranjan Maitra
We develop methodology for visualization of labeled mixed-featured datasets. We first investigate datasets with continuous features where our Max-Ratio Projection (MRP) method util…
An efficient -means-type algorithm for clustering datasets with incomplete records
Andrew Lithio, Ranjan Maitra
The -means algorithm is arguably the most popular nonparametric clustering method but cannot generally be applied to datasets with incomplete records. The usual practice then is…
Merging -means with hierarchical clustering for identifying general-shaped groups
Anna D. Peterson, Arka P. Ghosh, Ranjan Maitra
Clustering partitions a dataset such that observations placed together in a group are similar but different from those in other groups. Hierarchical and -means clustering are tw…