55 citations · 71 across the 27 of their papers we have counts for
6 papers · 1 filter
A pseudo-inverse of a line graph
Sevvandi Kandanaarachchi, Philip Kilby, Cheng Soon Ong
Line graphs are an alternative representation of graphs where each vertex of the original (root) graph becomes an edge. However not all graphs have a corresponding root graph, henc…
Graphon Mixtures
Sevvandi Kandanaarachchi, Cheng Soon Ong
Social networks have a small number of large hubs, and a large number of small dense communities. We propose a generative model that captures both hub and dense structures. Based o…
Graphons of Line Graphs
Sevvandi Kandanaarachchi, Cheng Soon Ong
We consider the problem of estimating graph limits, known as graphons, from observations of sequences of sparse finite graphs. In this paper we show a simple method that can shed l…
Comprehensive Algorithm Portfolio Evaluation using Item Response Theory
Sevvandi Kandanaarachchi, Kate Smith-Miles
Item Response Theory (IRT) has been proposed within the field of Educational Psychometrics to assess student ability as well as test question difficulty and discrimination power. M…
Short-term prediction of stream turbidity using surrogate data and a meta-model approach
Bhargav Rele, Caleb Hogan, Sevvandi Kandanaarachchi +1
Many water-quality monitoring programs aim to measure turbidity to help guide effective management of waterways and catchments, yet distributing turbidity sensors throughout networ…
Unsupervised Anomaly Detection Ensembles using Item Response Theory
Sevvandi Kandanaarachchi
Constructing an ensemble from a heterogeneous set of unsupervised anomaly detection methods is challenging because the class labels or the ground truth is unknown. Thus, traditiona…