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Deep candidate generation (DCG) that narrows down the collection of relevant items from billions to hundreds via representation learning has become prevalent in industrial recommender systems. Standard approaches approximate maximum…

Information Retrieval · Computer Science 2021-06-07 Chang Zhou , Jianxin Ma , Jianwei Zhang , Jingren Zhou , Hongxia Yang

Counterfactual learning has become promising for understanding and modeling causality in complex and dynamic systems. This paper presents a novel method for counterfactual learning in the context of multivariate time series analysis and…

Machine Learning · Computer Science 2026-03-03 Gianlucca Zuin , Adriano Veloso

Solar flares occur in complex sunspot groups, but it remains unclear how the probability of producing a flare of a given magnitude relates to the characteristics of the sunspot group. Here, we use Geostationary Operational Environmental…

Solar and Stellar Astrophysics · Physics 2012-02-28 D. Shaun Bloomfield , Paul A. Higgins , R. T. James McAteer , Peter T. Gallagher

One essential component of operational space weather forecasting is the prediction of solar flares. With a multitude of flare forecasting methods now available online it is still unclear which of these methods performs best, and none are…

Space Physics · Physics 2020-08-04 Jordan A. Guerra , Sophie A. Murray , D. Shaun Bloomfield , Peter T. Gallagher

Risk assessments for a pediatric population are often conducted across multiple stages. For example, clinicians may evaluate risks prenatally, at birth, and during Well-Child visits. Although predictions made at later stages typically…

Machine Learning · Computer Science 2025-08-18 Minghui Sun , Matthew M. Engelhard , Benjamin A. Goldstein

The efficient utilization of wind power by wind turbines relies on the ability of their pitch systems to adjust blade pitch angles in response to varying wind speeds. However, the presence of multiple health conditions in the pitch system…

Machine Learning · Computer Science 2023-08-14 Zixuan Wang , Bo Qin , Mengxuan Li , Chenlu Zhan , Mark D. Butala , Peng Peng , Hongwei Wang

This paper addresses the pressing need for an accurate solar energy prediction model, which is crucial for efficient grid integration. We explore the influence of the Air Quality Index and weather features on solar energy generation,…

Machine Learning · Computer Science 2024-10-07 Arjun Shah , Varun Viswanath , Kashish Gandhi , Nilesh Madhukar Patil

A solar active region can significantly disrupt the Sun Earth space environment, often leading to severe space weather events such as solar flares and coronal mass ejections. As a consequence, the automatic classification of active region…

Solar and Stellar Astrophysics · Physics 2024-10-24 Edoardo Legnaro , Sabrina Guastavino , Michele Piana , Anna Maria Massone

Data augmentation is one of the most successful techniques to improve the classification accuracy of machine learning models in computer vision. However, applying data augmentation to tabular data is a challenging problem since it is hard…

Machine Learning · Computer Science 2022-07-26 Azhar Mohammed , Dang Nguyen , Bao Duong , Thin Nguyen

Contrastive learning-based recommendation algorithms have significantly advanced the field of self-supervised recommendation, particularly with BPR as a representative ranking prediction task that dominates implicit collaborative filtering.…

Information Retrieval · Computer Science 2024-03-13 Shipeng Song , Bin Liu , Fei Teng , Tianrui Li

The problem of the Remaining Useful Life (RUL) prediction, aiming at providing an accurate estimate of the remaining time from the current predicting moment to the complete failure of the device, has gained significant attention from…

Machine Learning · Computer Science 2024-12-31 En Fu , Yanyan Hu , Kaixiang Peng , Yuxin Chu

Machine learning has become more important in real-life decision-making but people are concerned about the ethical problems it may bring when used improperly. Recent work brings the discussion of machine learning fairness into the causal…

Machine Learning · Statistics 2022-02-28 Haoyu Chen , Wenbin Lu , Rui Song , Pulak Ghosh

Whilst deep learning techniques have achieved excellent emotion prediction, they still require large amounts of labelled training data, which are (a) onerous and tedious to compile, and (b) prone to errors and biases. We propose Multi-Task…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Ravikiran Parameshwara , Ibrahim Radwan , Akshay Asthana , Iman Abbasnejad , Ramanathan Subramanian , Roland Goecke

AI-FLARES (Artificial Intelligence for the Analysis of Solar Flares Data) is a research project funded by the Agenzia Spaziale Italiana and by the Istituto Nazionale di Astrofisica within the framework of the ``Attivit\`a di Studio per la…

Solar storms can have a major impact on the infrastructure of the earth. Some of the causing events are observable from ground in the H{\alpha} spectral line. In this paper we propose a new method for the simultaneous detection of flares…

Computer Vision and Pattern Recognition · Computer Science 2013-04-29 Gernot Riegler , Thomas Pock , Werner Pötzi , Astrid Veronig

This study progresses solar flare prediction research by presenting a full-disk deep-learning model to forecast $\geq$M-class solar flares and evaluating its efficacy on both central (within $\pm$70$^\circ$) and near-limb (beyond…

Solar and Stellar Astrophysics · Physics 2023-08-31 Chetraj Pandey , Anli Ji , Trisha Nandakumar , Rafal A. Angryk , Berkay Aydin

Decision support systems are essential for maintaining grid stability in low-carbon power systems, such as wind power plants, by providing real-time alerts to control room operators regarding potential events, including Wind Power Ramp…

Feature quality is paramount for classification performance, particularly in few-shot scenarios. Contrastive learning, a widely adopted technique for enhancing feature quality, leverages sample relations to extract intrinsic features that…

Computer Vision and Pattern Recognition · Computer Science 2025-01-24 Guowei Yin , Sheng Huang , Luwen Huangfu , Yi Zhang , Xiaohong Zhang

In this paper, we present an application of neural networks in the renewable energy domain. We have developed a methodology for the daily prediction of global solar radiation on a horizontal surface. We use an ad-hoc time series…

Artificial Intelligence · Computer Science 2009-06-02 Christophe Paoli , Cyril Voyant , Marc Muselli , Marie-Laure Nivet

The uncertainty of the energy generated by photovoltaic systems incurs an additional cost for a guaranteed, reliable supply of energy (i.e., energy storage). This investigation aims to decrease the additional cost by introducing…

Machine Learning · Computer Science 2023-01-19 Guillermo Terrén-Serrano , Manel Martínez-Ramón