Search Results for author: Joan Lasenby

Found 23 papers, 12 papers with code

CGA-PoseNet: Camera Pose Regression via a 1D-Up Approach to Conformal Geometric Algebra

1 code implementation10 Feb 2023 Alberto Pepe, Joan Lasenby

This 1D-Up approach to CGA can be employed to overcome the dichotomy between translational and orientational components in camera pose regression in a compact and elegant way.

regression

Sky-image-based solar forecasting using deep learning with multi-location data: training models locally, globally or via transfer learning?

1 code implementation3 Nov 2022 Yuhao Nie, Quentin Paletta, Andea Scott, Luis Martin Pomares, Guillaume Arbod, Sgouris Sgouridis, Joan Lasenby, Adam Brandt

With more and more sky image datasets open sourced in recent years, the development of accurate and reliable deep learning-based solar forecasting methods has seen a huge growth in potential.

Transfer Learning

Evaluating Self-Supervised Learning for Molecular Graph Embeddings

1 code implementation NeurIPS 2023 Hanchen Wang, Jean Kaddour, Shengchao Liu, Jian Tang, Joan Lasenby, Qi Liu

Graph Self-Supervised Learning (GSSL) provides a robust pathway for acquiring embeddings without expert labelling, a capability that carries profound implications for molecular graphs due to the staggering number of potential molecules and the high cost of obtaining labels.

Self-Supervised Learning

Omnivision forecasting: combining satellite observations with sky images for improved intra-hour solar energy predictions

no code implementations7 Jun 2022 Quentin Paletta, Guillaume Arbod, Joan Lasenby

In this study, we integrate these two complementary points of view on the cloud cover in a single machine learning framework to improve intra-hour (up to 60-min ahead) irradiance forecasting.

SPIN: Simplifying Polar Invariance for Neural networks Application to vision-based irradiance forecasting

no code implementations29 Nov 2021 Quentin Paletta, Anthony Hu, Guillaume Arbod, Philippe Blanc, Joan Lasenby

Translational invariance induced by pooling operations is an inherent property of convolutional neural networks, which facilitates numerous computer vision tasks such as classification.

Data Augmentation Solar Irradiance Forecasting

Pre-training Molecular Graph Representation with 3D Geometry

1 code implementation ICLR 2022 Shengchao Liu, Hanchen Wang, Weiyang Liu, Joan Lasenby, Hongyu Guo, Jian Tang

However, the lack of 3D information in real-world scenarios has significantly impeded the learning of geometric graph representation.

Graph Representation Learning Self-Supervised Learning

Rotaflip: A New CNN Layer for Regularization and Rotational Invariance in Medical Images

no code implementations5 Aug 2021 Juan P. Vigueras-Guillén, Joan Lasenby, Frank Seeliger

Regularization in convolutional neural networks (CNNs) is usually addressed with dropout layers.

Redesigning Fully Convolutional DenseUNets for Large Histopathology Images

no code implementations5 Aug 2021 Juan P. Vigueras-Guillén, Joan Lasenby, Frank Seeliger

The automated segmentation of cancer tissue in histopathology images can help clinicians to detect, diagnose, and analyze such disease.

Segmentation

ECLIPSE : Envisioning CLoud Induced Perturbations in Solar Energy

2 code implementations26 Apr 2021 Quentin Paletta, Anthony Hu, Guillaume Arbod, Joan Lasenby

Efficient integration of solar energy into the electricity mix depends on a reliable anticipation of its intermittency.

Benchmarking of Deep Learning Irradiance Forecasting Models from Sky Images -- an in-depth Analysis

no code implementations1 Feb 2021 Quentin Paletta, Guillaume Arbod, Joan Lasenby

A number of industrial applications, such as smart grids, power plant operation, hybrid system management or energy trading, could benefit from improved short-term solar forecasting, addressing the intermittent energy production from solar panels.

Benchmarking energy trading +1

A Temporally Consistent Image-based Sun Tracking Algorithm for Solar Energy Forecasting Applications

no code implementations2 Dec 2020 Quentin Paletta, Joan Lasenby

Improving irradiance forecasting is critical to further increase the share of solar in the energy mix.

Unsupervised Point Cloud Pre-Training via Occlusion Completion

1 code implementation ICCV 2021 Hanchen Wang, Qi Liu, Xiangyu Yue, Joan Lasenby, Matthew J. Kusner

We find that even when we construct a single pre-training dataset (from ModelNet40), this pre-training method improves accuracy across different datasets and encoders, on a wide range of downstream tasks.

3D Point Cloud Linear Classification Few-Shot 3D Point Cloud Classification +5

Pre-Training by Completing Point Clouds

no code implementations28 Sep 2020 Hanchen Wang, Qi Liu, Xiangyu Yue, Joan Lasenby, Matt Kusner

There has recently been a flurry of exciting advances in deep learning models on point clouds.

Convolutional Neural Networks applied to sky images for short-term solar irradiance forecasting

no code implementations22 May 2020 Quentin Paletta, Joan Lasenby

This work presents preliminary results on the application of deep Convolutional Neural Networks for 2 to 20 min irradiance forecasting using hemispherical sky images and exogenous variables.

Solar Irradiance Forecasting

Neural Random Subspace

1 code implementation18 Nov 2019 Yun-Hao Cao, Jianxin Wu, Hanchen Wang, Joan Lasenby

The random subspace method, known as the pillar of random forests, is good at making precise and robust predictions.

Representation Learning

The unreasonable effectiveness of the forget gate

1 code implementation13 Apr 2018 Jos van der Westhuizen, Joan Lasenby

Given the success of the gated recurrent unit, a natural question is whether all the gates of the long short-term memory (LSTM) network are necessary.

Bayesian LSTMs in medicine

no code implementations5 Jun 2017 Jos van der Westhuizen, Joan Lasenby

The medical field stands to see significant benefits from the recent advances in deep learning.

BIG-bench Machine Learning General Classification +2

Techniques for visualizing LSTMs applied to electrocardiograms

no code implementations23 May 2017 Jos van der Westhuizen, Joan Lasenby

This paper explores four different visualization techniques for long short-term memory (LSTM) networks applied to continuous-valued time series.

Time Series Time Series Analysis

Single camera pose estimation using Bayesian filtering and Kinect motion priors

1 code implementation20 May 2014 Michael Burke, Joan Lasenby

This model is combined with measurements of the human head and hand positions, using recursive Bayesian estimation to incorporate temporal information.

2D Pose Estimation Computational Efficiency +4

ChESS - Quick and Robust Detection of Chess-board Features

1 code implementation23 Jan 2013 Stuart Bennett, Joan Lasenby

Localization of chess-board vertices is a common task in computer vision, underpinning many applications, but relatively little work focusses on designing a specific feature detector that is fast, accurate and robust.

3D Reconstruction Camera Calibration

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