activity
20172023
most citedTighter risk certificates for neural networks

34 citations · 87 across the 9 of their papers we have counts for

collaborators

9 papers

cs.CY2023★ 2 cited

A Toolbox for Modelling Engagement with Educational Videos

Yuxiang Qiu, Karim Djemili, Denis Elezi +5

With the advancement and utility of Artificial Intelligence (AI), personalising education to a global population could be a cornerstone of new educational systems in the future. Th…

cs.IR2023

TrueLearn: A Python Library for Personalised Informational Recommendations with (Implicit) Feedback

Yuxiang Qiu, Karim Djemili, Denis Elezi +3

This work describes the TrueLearn Python library, which contains a family of online learning Bayesian models for building educational (or more generally, informational) recommendat…

cs.LG2022

Comparing the carbon costs and benefits of low-resource solar nowcasting

Ben Dixon, María Pérez-Ortiz, Jacob Bieker

Solar PV yield nowcasting is used to help anticipate peaks and troughs in demand to support grid integration. This paper compares multiple low-resource approaches to nowcasting sol…

cs.IR2021

Semantic TrueLearn: Using Semantic Knowledge Graphs in Recommendation Systems

Sahan Bulathwela, María Pérez-Ortiz, Emine Yilmaz +1

In informational recommenders, many challenges arise from the need to handle the semantic and hierarchical structure between knowledge areas. This work aims to advance towards buil…

cs.CY2021★ 22 cited

Could AI Democratise Education? Socio-Technical Imaginaries of an EdTech Revolution

Sahan Bulathwela, María Pérez-Ortiz, Catherine Holloway +1

Artificial Intelligence (AI) in Education has been said to have the potential for building more personalised curricula, as well as democratising education worldwide and creating a…

cs.LG2020★ 1 cited

A PAC-Bayesian Perspective on Structured Prediction with Implicit Loss Embeddings

Théophile Cantelobre, Benjamin Guedj, María Pérez-Ortiz +1

Many practical machine learning tasks can be framed as Structured prediction problems, where several output variables are predicted and considered interdependent. Recent theoretica…

cs.LG2020★ 34 cited

Tighter risk certificates for neural networks

María Pérez-Ortiz, Omar Rivasplata, John Shawe-Taylor +1

This paper presents an empirical study regarding training probabilistic neural networks using training objectives derived from PAC-Bayes bounds. In the context of probabilistic neu…

cs.CY2020★ 14 cited

Predicting Engagement in Video Lectures

Sahan Bulathwela, María Pérez-Ortiz, Aldo Lipani +2

The explosion of Open Educational Resources (OERs) in the recent years creates the demand for scalable, automatic approaches to process and evaluate OERs, with the end goal of iden…

astro-ph.IM2017★ 14 cited

Machine learning techniques to select Be star candidates. An application in the OGLE-IV Gaia south ecliptic pole field

M. F. Pérez-Ortiz, A. García-Varela, A. J. Quiroz +2

Statistical pattern recognition methods have provided competitive solutions for variable star classification at a relatively low computational cost. In order to perform supervised…