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This paper presents a new method for combining (or aggregating or ensembling) multivariate probabilistic forecasts, considering dependencies between quantiles and marginals through a smoothing procedure that allows for online learning. We…

机器学习 · 统计学 2024-02-08 Jonathan Berrisch , Florian Ziel

Although Gaussian processes (GPs) with deep kernels have been successfully used for meta-learning in regression tasks, its uncertainty estimation performance can be poor. We propose a meta-learning method for calibrating deep kernel GPs for…

机器学习 · 统计学 2023-12-14 Tomoharu Iwata , Atsutoshi Kumagai

Ensuring high accuracy and efficiency of predictive models is paramount in the aerospace industry, particularly in the context of multidisciplinary design and optimization processes. These processes often require numerous evaluations of…

机器学习 · 计算机科学 2025-03-26 James M. Shihua , Paul Saves , Rhea P. Liem , Joseph Morlier

Model-based Reinforcement Learning (MBRL) is a promising framework for learning control in a data-efficient manner. MBRL algorithms can be fairly complex due to the separate dynamics modeling and the subsequent planning algorithm, and as a…

A grid search, at the cost of training and testing a large number of models, is an effective way to optimize the prediction performance of deep learning models. A challenging task concerning grid search is the time management. Without a…

机器学习 · 计算机科学 2025-04-08 Xia Jiang , Yijun Zhou , Chuhan Xu , Adam Brufsky , Alan Wells

This study investigates the potential of hybrid metaheuristic algorithms to enhance the training of Probabilistic Neural Networks (PNNs) by leveraging the complementary strengths of multiple optimisation strategies. Traditional learning…

神经与进化计算 · 计算机科学 2025-04-16 Piotr A. Kowalski , Szymon Kucharczyk , Jacek Mańdziuk

Probabilistic forecasting, i.e. estimating the probability distribution of a time series' future given its past, is a key enabler for optimizing business processes. In retail businesses, for example, forecasting demand is crucial for having…

人工智能 · 计算机科学 2019-02-25 David Salinas , Valentin Flunkert , Jan Gasthaus

Traditional machine learning methods have been widely studied in financial innovation. My study focuses on the application of deep learning methods on asset pricing. I investigate various deep learning methods for asset pricing, especially…

统计金融 · 定量金融 2022-09-27 Chen Zhang

In recent years, machine learning and deep learning have become popular methods for financial data analysis, including financial textual data, numerical data, and graphical data. This paper proposes to use sentiment analysis to extract…

统计金融 · 定量金融 2020-07-27 Yang Li , Yi Pan

Accurate load forecasting is critical for reliable and efficient planning and operation of electric power grids. In this paper, we propose a unifying deep learning framework for load forecasting, which includes time-varying feature…

机器学习 · 计算机科学 2023-05-10 Jing Xiong , Yu Zhang

Software analytics has been widely used in software engineering for many tasks such as generating effort estimates for software projects. One of the "black arts" of software analytics is tuning the parameters controlling a data mining…

软件工程 · 计算机科学 2019-02-04 Tianpei Xia , Rahul Krishna , Jianfeng Chen , George Mathew , Xipeng Shen , Tim Menzies

A multi-period planning framework is proposed that exploits multi-step ahead traffic predictions to address service overprovisioning and improve adaptability to traffic changes, while ensuring the necessary quality-of-service (QoS) levels.…

网络与互联网体系结构 · 计算机科学 2025-02-13 Hafsa Maryam , Tania Panayiotou , Georgios Ellinas

Deep learning is rapidly becoming a go-to tool for many artificial intelligence problems due to its ability to outperform other approaches and even humans at many problems. Despite its popularity we are still unable to accurately predict…

机器学习 · 计算机科学 2018-11-30 Daniel Justus , John Brennan , Stephen Bonner , Andrew Stephen McGough

Probabilistic electricity price forecasting (PEPF) is vital for short-term electricity markets, yet the multivariate nature of day-ahead prices - spanning 24 consecutive hours - remains underexplored. At the same time, real-time…

机器学习 · 统计学 2026-04-27 Simon Hirsch

Prognostic task is of great importance as it closely related to the survival analysis of patients, the optimization of treatment plans and the allocation of resources. The existing prognostic models have shown promising results on specific…

图像与视频处理 · 电气工程与系统科学 2025-01-14 Binyu Zhang , Shichao Li , Junpeng Jian , Zhu Meng , Limei Guo , Zhicheng Zhao

Accurate weather and climate modeling is critical for both scientific advancement and safeguarding communities against environmental risks. Traditional approaches rely heavily on Numerical Weather Prediction (NWP) models, which simulate…

机器学习 · 计算机科学 2024-09-13 Muhammad Akhtar Munir , Fahad Shahbaz Khan , Salman Khan

Capturing aleatoric uncertainty is a critical part of many machine learning systems. In deep learning, a common approach to this end is to train a neural network to estimate the parameters of a heteroscedastic Gaussian distribution by…

机器学习 · 计算机科学 2022-04-04 Maximilian Seitzer , Arash Tavakoli , Dimitrije Antic , Georg Martius

Multi-horizon price forecasting is central to portfolio allocation, risk management, and algorithmic trading, yet deep learning architectures have proliferated faster than rigorous financial benchmarks can evaluate them. This study provides…

统计金融 · 定量金融 2026-03-19 Nabeel Ahmad Saidd

Industrial forecasting often involves multi-source asynchronous signals and multi-output targets, while deployment requires explicit trade-offs between prediction error and model complexity. Current practices typically fix alignment…

机器学习 · 计算机科学 2026-04-10 Yumeng Zha , Shengxiang Yang , Xianpeng Wang

Although conventional machine learning algorithms have been widely adopted for stock-price predictions in recent years, the massive volume of specific labeled data required are not always available. In contrast, meta-learning technology…

机器学习 · 计算机科学 2022-02-18 Shin-Hung Chang , Cheng-Wen Hsu , Hsing-Ying Li , Wei-Sheng Zeng , Jan-Ming Ho