Kernelized sorting
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Updated: Jun 10, 2026

A Visual Guide to Sorting Electrophysiological Recordings Using 'SpikeSorter'
Published on: February 10, 2017
Novi Quadrianto1, Alex J Smola, Le Song
1RSISE, Australian National University and the Statistical Machine Learning Group, Canberra Research Laboratory, NICTA, Tower A, 7 London Circuit, Canberra City, ACT 2601, Australia. novi.quad@gmail.com
Abstract:
Object matching is a fundamental operation in data analysis. It typically requires the definition of a similarity measure between the classes of objects to be matched. Instead, we develop an approach which is able to perform matching by requiring a similarity measure only within each of the classes. This is achieved by maximizing the dependency between matched pairs of observations by means of the Hilbert-Schmidt Independence Criterion. This problem can be cast as one of maximizing a quadratic assignment problem with special structure and we present a simple algorithm for finding a locally optimal solution.
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