no code implementations • 26 Sep 2023 • Daniel Agyapong, Jeffrey Ryan Propster, Jane Marks, Toby Dylan Hocking
Previous methods for evaluating the quality of the inferred network include using external data, and network consistency across sub-samples, both which have several drawbacks that limit their applicability in real microbiome composition data sets.
2 code implementations • 2 Jul 2021 • Jonathan Hillman, Toby Dylan Hocking
ROC curves can also be used in other problems that have false positive and true positive rates such as changepoint detection.
1 code implementation • 12 Dec 2020 • Arnaud Liehrmann, Guillem Rigaill, Toby Dylan Hocking
We show that the unconstrained multiple changepoint detection model, with alternative noise assumptions and a suitable setup, reduces the over-dispersion exhibited by count data and turns out to detect peaks more accurately than algorithms which rely on these natural assumptions.
2 code implementations • 24 Jun 2020 • Toby Dylan Hocking, Anuraag Srivastava
In partially labeled data, it is important to correctly predict presence/absence of changes in positive/negative labeled regions, in both the train and test sets.
2 code implementations • 8 Jun 2020 • Avinash Barnwal, Hyunsu Cho, Toby Dylan Hocking
In this work, we implement loss functions for learning accelerated failure time (AFT) models in XGBoost, to increase the support for survival modeling for different kinds of label censoring.
4 code implementations • 29 Sep 2018 • Toby Dylan Hocking, Guillem Rigaill, Paul Fearnhead, Guillaume Bourque
We describe a new algorithm and R package for peak detection in genomic data sets using constrained changepoint algorithms.
Computation
1 code implementation • 21 Feb 2018 • Sean Jewell, Toby Dylan Hocking, Paul Fearnhead, Daniela Witten
Calcium imaging data promises to transform the field of neuroscience by making it possible to record from large populations of neurons simultaneously.
Methodology Neurons and Cognition Applications
1 code implementation • NeurIPS 2017 • Alexandre Drouin, Toby Dylan Hocking, François Laviolette
Learning a regression function using censored or interval-valued output data is an important problem in fields such as genomics and medicine.
7 code implementations • 9 Mar 2017 • Toby Dylan Hocking, Guillem Rigaill, Paul Fearnhead, Guillaume Bourque
This leads to a new algorithm which can solve problems with arbitrary affine constraints on adjacent segment means, and which has empirical time complexity that is log-linear in the amount of data.
1 code implementation • 3 Jun 2015 • Toby Dylan Hocking, Guillaume Bourque
To select the number of peaks in the segmentation, we propose a supervised penalty learning model.
3 code implementations • 30 Jan 2014 • David Venuto, Toby Dylan Hocking, Lakjaree Sphanurattana, Masashi Sugiyama
In ranking problems, the goal is to learn a ranking function from labeled pairs of input points.