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The Predictive Normalized Maximum Likelihood (pNML) scheme has been recently suggested for universal learning in the individual setting, where both the training and test samples are individual data. The goal of universal learning is to…

机器学习 · 计算机科学 2020-01-09 Koby Bibas , Yaniv Fogel , Meir Feder

Graph Neural Networks (GNNs) are deep-learning architectures designed for graph-type data, where understanding relationships among individual observations is crucial. However, achieving promising GNN performance, especially on unseen data,…

机器学习 · 计算机科学 2024-05-22 Lequan Lin , Dai Shi , Andi Han , Zhiyong Wang , Junbin Gao

Continual lifelong learning requires an agent or model to learn many sequentially ordered tasks, building on previous knowledge without catastrophically forgetting it. Much work has gone towards preventing the default tendency of machine…

机器学习 · 计算机科学 2020-03-05 Shawn Beaulieu , Lapo Frati , Thomas Miconi , Joel Lehman , Kenneth O. Stanley , Jeff Clune , Nick Cheney

This work evaluates the effectiveness of spatiotemporal Graph Neural Networks (GNNs) for multi-store retail sales forecasting and compares their performance against ARIMA, LSTM, and XGBoost baselines. Using weekly sales data from 45 Walmart…

机器学习 · 计算机科学 2025-11-25 Manish Singh , Arpita Dayama

Web-scale ranking systems at Meta serving billions of users is complex. Improving ranking models is essential but engineering heavy. Automated Machine Learning (AutoML) can release engineers from labor intensive work of tuning ranking…

Leveraging network information for predictive modeling has become widespread in many domains. Within the realm of referral and targeted marketing, influencer detection stands out as an area that could greatly benefit from the incorporation…

社会与信息网络 · 计算机科学 2024-09-11 Elena Tiukhova , Emiliano Penaloza , María Óskarsdóttir , Bart Baesens , Monique Snoeck , Cristián Bravo

Forecasting the trend of stock prices is an enduring topic at the intersection of finance and computer science. Periodical updates to forecasters have proven effective in handling concept drifts arising from non-stationary markets. However,…

计算工程、金融与科学 · 计算机科学 2024-01-18 Shiluo Huang , Zheng Liu , Ye Deng , Qing Li

Reactive anomaly detection methods, which are commonly deployed to identify anomalies after they occur based on observed deviations, often fall short in applications that demand timely intervention, such as industrial monitoring, finance,…

机器学习 · 计算机科学 2026-02-13 Luis Olmos , Rashida Hasan

Link prediction is a fundamental problem in many graph based applications, such as protein-protein interaction prediction. Graph neural network (GNN) has recently been widely used for link prediction. However, existing GNN based link…

机器学习 · 计算机科学 2023-03-02 Kai-Lang Yao , Wu-Jun Li

We propose a learning-augmented framework for accelerating max-flow computation and image segmentation by integrating Graph Neural Networks (GNNs) with the Ford-Fulkerson algorithm. Rather than predicting initial flows, our method learns…

机器学习 · 计算机科学 2026-04-24 Eleanor Wiesler , Trace Baxley

Generative, explainable, and flexible recommender systems, derived using Large Language Models (LLM) are promising and poorly adapted to the cold-start user situation, where there is little to no history of interaction. The current…

机器学习 · 计算机科学 2025-07-23 Yushang Zhao , Huijie Shen , Dannier Li , Lu Chang , Chengrui Zhou , Yinuo Yang

Consumer demand forecasting is of high importance for many e-commerce applications, including supply chain optimization, advertisement placement, and delivery speed optimization. However, reliable time series sales forecasting for…

机器学习 · 计算机科学 2024-05-24 Dan Kalifa , Uriel Singer , Ido Guy , Guy D. Rosin , Kira Radinsky

We present a novel dataset collected by ASOS (a major online fashion retailer) to address the challenge of predicting customer returns in a fashion retail ecosystem. With the release of this substantial dataset we hope to motivate further…

Optimal power flow (OPF) has been used for real-time grid operations. Prior efforts demonstrated that utilizing flexibility from dynamic topologies will improve grid efficiency. However, this will convert the linear OPF into a mixed-integer…

系统与控制 · 电气工程与系统科学 2024-10-24 Thuan Pham , Xingpeng Li

In today's globalised trade, supply chains form complex networks spanning multiple organisations and even countries, making them highly vulnerable to disruptions. These vulnerabilities, highlighted by recent global crises, underscore the…

计算工程、金融与科学 · 计算机科学 2025-03-11 Ge Zheng , Alexandra Brintrup

In the realm of Mobility-on-Demand (MoD) systems, the forecasting of rider demand is a cornerstone for operational decision-making and system optimization. Traditional forecasting methodologies primarily yield point estimates, thereby…

机器学习 · 计算机科学 2024-03-06 Xiaoming Li , Hubert Normandin-Taillon , Chun Wang , Xiao Huang

With increasing competition and pace in the financial markets, robust forecasting methods are becoming more and more valuable to investors. While machine learning algorithms offer a proven way of modeling non-linearities in time series,…

计算金融 · 定量金融 2019-07-09 Lukas Ryll , Sebastian Seidens

Model-Agnostic Meta-Learning (MAML), a popular gradient-based meta-learning framework, assumes that the contribution of each task or instance to the meta-learner is equal. Hence, it fails to address the domain shift between base and novel…

机器学习 · 计算机科学 2021-12-02 Krishnateja Killamsetty , Changbin Li , Chen Zhao , Rishabh Iyer , Feng Chen

Natural language understanding(NLU) is challenging for finance due to the lack of annotated data and the specialized language in that domain. As a result, researchers have proposed to use pre-trained language model and multi-task learning…

计算与语言 · 计算机科学 2023-03-28 Bixing Yan , Shaoling Chen , Yuxuan He , Zhihan Li

Efficient anomaly detection and diagnosis in multivariate time-series data is of great importance for modern industrial applications. However, building a system that is able to quickly and accurately pinpoint anomalous observations is a…

机器学习 · 计算机科学 2022-05-17 Shreshth Tuli , Giuliano Casale , Nicholas R. Jennings