A
Alexis Boukouvalas
Researcher at University of Manchester
Publications - 36
Citations - 1150
Alexis Boukouvalas is an academic researcher from University of Manchester. The author has contributed to research in topics: Gaussian process & Inference. The author has an hindex of 12, co-authored 34 publications receiving 850 citations. Previous affiliations of Alexis Boukouvalas include Aston University & Amazon.com.
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Journal Article
GPflow: a Gaussian process library using tensorflow
Alexander G. de G. Matthews,Mark van der Wilk,Thomas Nickson,Keisuke Fujii,Alexis Boukouvalas,Pablo León-Villagrá,Zoubin Ghahramani,James Hensman +7 more
TL;DR: GPflow as discussed by the authors is a Gaussian process library that uses TensorFlow for its core computations and Python for its front end The distinguishing features of GPflow are that it uses variational inference as the primary approximation method.
Journal ArticleDOI
What to do when K-means clustering fails: A simple yet principled alternative algorithm
TL;DR: The simplicity and effectiveness of this algorithm on the health informatics problem of clinical sub-typing in a cluster of diseases known as parkinsonism is demonstrated as well as being statistically rigorous as it is based on nonparametric Bayesian Dirichlet process mixture modeling.
Posted Content
GPflow: A Gaussian process library using TensorFlow
Alexander G. de G. Matthews,Mark van der Wilk,Thomas Nickson,Keisuke Fujii,Alexis Boukouvalas,Pablo León-Villagrá,Zoubin Ghahramani,James Hensman +7 more
TL;DR: GPflow is a Gaussian process library that uses TensorFlow for its core computations and Python for its front end and has a particular emphasis on software testing and is able to exploit GPU hardware.
Proceedings ArticleDOI
Predicting room occupancy with a single passive infrared (PIR) sensor through behavior extraction
TL;DR: The approach allows us to understand and make use of the motion patterns generated by people within the monitored environment and shows how flexible nonparametric machine learning algorithms extract useful information about the occupancy from a single PIR sensor.
Journal ArticleDOI
Age‐associated changes in long‐chain fatty acid profile during healthy aging promote pro‐inflammatory monocyte polarization via PPARγ
Chathyan Pararasa,John Ikwuobe,Shahjahan Shigdar,Alexis Boukouvalas,Ian T. Nabney,James Brown,Andrew Devitt,Clifford J. Bailey,Stuart J. Bennett,Helen R. Griffiths +9 more
TL;DR: It is shown that plasma saturated, poly‐ and mono‐unsaturated FAs increase with age, and a midlife adult FA profile impairs the switch from proinflammatory to lower energy, requiring anti‐inflammatory macrophages through metabolic reprogramming.