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Existing approaches for estimating home-field advantage (HFA) include modeling the difference between home and away scores as a function of the difference between home and away team ratings that are treated either as fixed or random…

Applications · Statistics 2020-03-23 Andrew T. Karl

The fast growth of E-Commerce creates a global market worth USD 821 billion for online fashion shopping. What unique about fashion presentation is that, the same design can usually be offered with different cloths textures. However, only…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Youyi Zhan , Tuanfeng Y. Wang , Tianjia Shao , Kun Zhou

Multi-task learning (MTL) has been successfully used in many real-world applications, which aims to simultaneously solve multiple tasks with a single model. The general idea of multi-task learning is designing kinds of global parameter…

Machine Learning · Computer Science 2023-01-24 Xuewen Tao , Mingming Ha , Xiaobo Guo , Qiongxu Ma , Hongwei Cheng , Wenfang Lin

In this paper we introduce the Kumaraswamy autoregressive moving average models (KARMA), which is a dynamic class of models for time series taking values in the double bounded interval $(a,b)$ following the Kumaraswamy distribution. The…

Methodology · Statistics 2023-01-16 Fábio Mariano Bayer , Débora Missio Bayer , Guilherme Pumi

Producing probabilistic guarantee for several steps of a predicted signal follow a temporal logic defined behavior has its rising importance in monitoring. In this paper, we derive a method to compute the joint probability distribution of…

Systems and Control · Computer Science 2019-01-15 Xin Qin , Jyotirmoy V. Deshmukh

Prediction over tabular data is an essential task in many data science applications such as recommender systems, online advertising, medical treatment, etc. Tabular data is structured into rows and columns, with each row as a data sample…

Information Retrieval · Computer Science 2021-08-12 Jiarui Qin , Weinan Zhang , Rong Su , Zhirong Liu , Weiwen Liu , Ruiming Tang , Xiuqiang He , Yong Yu

International trade policies have recently garnered attention for limiting cross-border exchange of essential goods (e.g. steel, aluminum, soybeans, and beef). Since trade critically affects employment and wages, predicting future patterns…

Econometrics · Economics 2019-10-09 Feras Batarseh , Munisamy Gopinath , Ganesh Nalluru , Jayson Beckman

Piecewise Aggregate Approximation (PAA) is a competitive basic dimension reduction method for high-dimensional time series mining. When deployed, however, the limitations are obvious that some important information will be missed,…

Machine Learning · Computer Science 2019-07-02 Chunkai Zhang , Yingyang Chen , Ao Yin , Zhen Qin , Xing Zhang , Keli Zhang , Zoe L. Jiang

Given the scarcity of anomalies in real-world applications, the majority of literature has been focusing on modeling normality. The learned representations enable anomaly detection as the normality model is trained to capture certain key…

Machine Learning · Computer Science 2022-07-05 Feng Xue , Weizhong Yan

Weather forecasting benefits us in various ways from farmers in cultivation and harvesting their crops to airlines to schedule their flights. Weather forecasting is a challenging task due to the chaotic nature of the atmosphere. Therefore…

Machine Learning · Computer Science 2020-11-10 Eranga De Saa , Lochandaka Ranathunga

In this paper we discuss dynamic ARMA-type regression models for time series taking values in $(0,\infty)$. In the proposed model, the conditional mean is modeled by a dynamic structure containing autoregressive and moving average terms,…

For network administration and maintenance, it is critical to anticipate when networks will receive peak volumes of traffic so that adequate resources can be allocated to service requests made to servers. In the event that sufficient…

Networking and Internet Architecture · Computer Science 2023-03-27 Tucker Stewart , Bin Yu , Anderson Nascimento , Juhua Hu

Accurate probabilistic forecasting of intraday electricity prices is critical for market participants to inform trading decisions. Existing studies rely on specific domain features, such as Volume-Weighted Average Price (VWAP) and the last…

Computational Finance · Quantitative Finance 2026-02-17 Runyao Yu , Ruochen Wu , Yongsheng Han , Jochen L. Cremer

Successful quantitative investment usually relies on precise predictions of the future movement of the stock price. Recently, machine learning based solutions have shown their capacity to give more accurate stock prediction and become…

Machine Learning · Computer Science 2021-06-28 Hengxu Lin , Dong Zhou , Weiqing Liu , Jiang Bian

While numerical weather prediction (NWP) models are essential for forecasting thunderstorms hours in advance, NWP uncertainty, which increases with lead time, limits the predictability of thunderstorm occurrence. This study investigates how…

Atmospheric and Oceanic Physics · Physics 2025-02-20 Kianusch Vahid Yousefnia , Tobias Bölle , Christoph Metzl

This paper presents a novel approach that leverages Transformer-based multivariate time series model and Machine Learning Ensembles to predict the quality of human sleep, emotional states, and stress levels. A formula to calculate the…

Machine Learning · Computer Science 2024-10-16 Jinjae Kim , Minjeong Ma , Eunjee Choi , Keunhee Cho , Chanwoo Lee

Irregular Time Series Data (IRTS) has shown increasing prevalence in real-world applications. We observed that IRTS can be divided into two specialized types: Natural Irregular Time Series (NIRTS) and Accidental Irregular Time Series…

Machine Learning · Computer Science 2024-10-17 Liangwei Nathan Zheng , Zhengyang Li , Chang George Dong , Wei Emma Zhang , Lin Yue , Miao Xu , Olaf Maennel , Weitong Chen

Price movement forecasting, aimed at predicting financial asset trends based on current market information, has achieved promising advancements through machine learning (ML) methods. Most existing ML methods, however, struggle with the…

Machine Learning · Computer Science 2024-07-11 Liang Zeng , Lei Wang , Hui Niu , Ruchen Zhang , Ling Wang , Jian Li

We investigate the performance of dynamic portfolios constructed using more than 21,000 technical trading rules on 12 categorical and country-specific markets over the 2004-2015 study period, on rolling forward structures of different…

Statistical Finance · Quantitative Finance 2019-06-14 Georgios Sermpinis , Arman Hassanniakalager , Charalampos Stasinakis , Ioannis Psaradellis

We investigate model assessment and selection in a changing environment, by synthesizing datasets from both the current time period and historical epochs. To tackle unknown and potentially arbitrary temporal distribution shift, we develop…

Machine Learning · Computer Science 2024-06-05 Elise Han , Chengpiao Huang , Kaizheng Wang