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Deep learning algorithms have made many breakthroughs and have various applications in real life. Computational resources become a bottleneck as the data and complexity of the deep learning pipeline increases. In this paper, we propose…

机器学习 · 计算机科学 2021-05-05 Salman Ahmed , Hammad Naveed

Online learning algorithms are fast, memory-efficient, easy to implement, and applicable to many prediction problems, including classification, regression, and ranking. Several online algorithms were proposed in the past few decades, some…

机器学习 · 计算机科学 2015-07-03 Francesco Orabona , Koby Crammer , Nicolò Cesa-Bianchi

This paper proposes a new multi-linear projection method for denoising and estimation of high-dimensional matrix-variate factor time series. It assumes that a $p_1\times p_2$ matrix-variate time series consists of a dynamically dependent,…

统计方法学 · 统计学 2025-08-04 Zhaoxing Gao , Ruey S. Tsay

Our proposal is on a new stochastic optimizer for non-convex and possibly non-smooth objective functions typically defined over large dimensional design spaces. Towards this, we have tried to bridge noise-assisted global search and faster…

机器学习 · 计算机科学 2025-03-03 Uttam Suman , Mariya Mamajiwala , Mukul Saxena , Ankit Tyagi , Debasish Roy

Time series forecasting has important applications in financial analysis, weather forecasting, and traffic management. However, existing deep learning models are limited in processing non-stationary time series data because they cannot…

机器学习 · 计算机科学 2025-05-13 Yuqi Xiong , Yang Wen

One of the challenging questions in time series forecasting is how to find the best algorithm. In recent years, a recommender system scheme has been developed for time series analysis using a meta-learning approach. This system selects the…

机器学习 · 统计学 2019-08-23 Sasan Barak , Mahdi Nasiri , Mehrdad Rostamzadeh

Time-series forecasting in real-world applications such as finance and energy often faces challenges due to limited training data and complex, noisy temporal dynamics. Existing deep forecasting models typically supervise predictions using…

机器学习 · 计算机科学 2026-01-14 Jiacheng You , Jingcheng Yang , Yuhang Xie , Zhongxuan Wu , Xiucheng Li , Feng Li , Pengjie Wang , Jian Xu , Bo Zheng , Xinyang Chen

In this paper, we introduce ProNet, an novel deep learning approach designed for multi-horizon time series forecasting, adaptively blending autoregressive (AR) and non-autoregressive (NAR) strategies. Our method involves dividing the…

机器学习 · 计算机科学 2024-08-13 Yang Lin

Recent breakthroughs in natural language processing and computer vision, driven by efficient pre-training on large datasets, have enabled foundation models to excel on a wide range of tasks. However, this potential has not yet been fully…

机器学习 · 计算机科学 2025-02-03 Özgün Turgut , Philip Müller , Martin J. Menten , Daniel Rueckert

In the context of time series forecasting, it is a common practice to evaluate multiple methods and choose one of these methods or an ensemble for producing the best forecasts. However, choosing among different ensembles over multiple…

机器学习 · 计算机科学 2021-12-16 Himanshi Charotia , Abhishek Garg , Gaurav Dhama , Naman Maheshwari

We propose a three-stage framework for forecasting high-dimensional time-series data. Our method first estimates parameters for each univariate time series. Next, we use these parameters to cluster the time series. These clusters can be…

机器学习 · 计算机科学 2021-10-28 Reese Pathak , Rajat Sen , Nikhil Rao , N. Benjamin Erichson , Michael I. Jordan , Inderjit S. Dhillon

This work studies and develop projection-free algorithms for online learning with linear optimization oracles (a.k.a. Frank-Wolfe) for handling the constraint set. More precisely, this work (i) provides an improved (optimized) variant of an…

最优化与控制 · 数学 2026-05-20 Julien Weibel , Pierre Gaillard , Wouter M. Koolen , Adrien Taylor

Online updating of time series forecasting models aims to address the concept drifting problem by efficiently updating forecasting models based on streaming data. Many algorithms are designed for online time series forecasting, with some…

机器学习 · 计算机科学 2023-09-25 Yi-Fan Zhang , Qingsong Wen , Xue Wang , Weiqi Chen , Liang Sun , Zhang Zhang , Liang Wang , Rong Jin , Tieniu Tan

A large collection of time series poses significant challenges for classical and neural forecasting approaches. Classical time series models fail to fit data well and to scale to large problems, but succeed at providing uncertainty…

机器学习 · 统计学 2018-12-04 Danielle C. Maddix , Yuyang Wang , Alex Smola

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

We present an alternative and simpler method for computing principal typings of flow networks. When limited to planar flow networks, the method can be made to run in fixed-parameter linear-time -- where the parameter not to be exceeded is…

数据结构与算法 · 计算机科学 2018-07-20 Assaf Kfoury

Time series forecasting at scale presents significant challenges for modern prediction systems, particularly when dealing with large sets of synchronized series, such as in a global payment network. In such systems, three key challenges…

Network traffic matrix estimation is an ill-posed linear inverse problem: it requires to estimate the unobservable origin destination traffic flows, X, given the observable link traffic flows, Y, and a binary routing matrix, A, which are…

网络与互联网体系结构 · 计算机科学 2021-12-20 Syed Muhammad Atif , Nicolas Gillis , Sameer Qazi , Imran Naseem

Many real-life applications involve simultaneously forecasting multiple time series that are hierarchically related via aggregation or disaggregation operations. For instance, commercial organizations often want to forecast inventories…

机器学习 · 计算机科学 2021-02-26 Xing Han , Sambarta Dasgupta , Joydeep Ghosh

Forecasting based on financial time-series is a challenging task since most real-world data exhibits nonstationary property and nonlinear dependencies. In addition, different data modalities often embed different nonlinear relationships…

机器学习 · 计算机科学 2019-03-19 Dat Thanh Tran , Juho Kanniainen , Moncef Gabbouj , Alexandros Iosifidis