Search Results for author: Jonathan R. Wells

Found 4 papers, 1 papers with code

Enabling clustering algorithms to detect clusters of varying densities through scale-invariant data preprocessing

no code implementations21 Jan 2024 Sunil Aryal, Jonathan R. Wells, Arbind Agrahari Baniya, KC Santosh

In this paper, we show that preprocessing data using a variant of rank transformation called 'Average Rank over an Ensemble of Sub-samples (ARES)' makes clustering algorithms robust to data representation and enable them to detect varying density clusters.

Clustering

Point-Set Kernel Clustering

1 code implementation14 Feb 2020 Kai Ming Ting, Jonathan R. Wells, Ye Zhu

This paper introduces a new similarity measure called point-set kernel which computes the similarity between an object and a set of objects.

Clustering Semantic Segmentation

Isolation Kernel: The X Factor in Efficient and Effective Large Scale Online Kernel Learning

no code implementations2 Jul 2019 Kai Ming Ting, Jonathan R. Wells, Takashi Washio

A current key approach focuses on ways to produce an approximate finite-dimensional feature map, assuming that the kernel used has a feature map with intractable dimensionality---an assumption traditionally held in kernel-based methods.

A simple efficient density estimator that enables fast systematic search

no code implementations3 Jul 2017 Jonathan R. Wells, Kai Ming Ting

We show that a recent outlying aspects miner can run orders of magnitude faster by simply replacing its density estimator with the proposed density estimator, enabling it to deal with large datasets with thousands of dimensions that would otherwise be impossible.

Small Data Image Classification

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