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Spatio-temporal forecasting has numerous applications in analyzing wireless, traffic, and financial networks. Many classical statistical models often fall short in handling the complexity and high non-linearity present in time-series data.…

机器学习 · 统计学 2021-06-14 Soumyasundar Pal , Liheng Ma , Yingxue Zhang , Mark Coates

For a Bayesian, real-time forecasting with the posterior predictive distribution can be challenging for a variety of time series models. First, estimating the parameters of a time series model can be difficult with sample-based approaches…

应用统计 · 统计学 2022-08-08 Taylor R. Brown

Accurately predicting the prices of financial time series is essential and challenging for the financial sector. Owing to recent advancements in deep learning techniques, deep learning models are gradually replacing traditional statistical…

统计金融 · 定量金融 2023-09-29 Cheng Zhang , Nilam Nur Amir Sjarif , Roslina Ibrahim

We propose a Bayesian nonparametric model including time-varying predictors in dynamic network inference. The model is applied to infer the dependence structure among financial markets during the global financial crisis, estimating effects…

统计方法学 · 统计学 2014-07-08 Daniele Durante , David B. Dunson

This article studies the financial time series data processing for machine learning. It introduces the most frequent scaling methods, then compares the resulting stationarity and preservation of useful information for trend forecasting. It…

统计金融 · 定量金融 2019-07-09 Fabrice Daniel

While time series momentum is a well-studied phenomenon in finance, common strategies require the explicit definition of both a trend estimator and a position sizing rule. In this paper, we introduce Deep Momentum Networks -- a hybrid…

机器学习 · 统计学 2020-09-29 Bryan Lim , Stefan Zohren , Stephen Roberts

We investigate the effectiveness of different machine learning methodologies in predicting economic cycles. We identify the deep learning methodology of Bi-LSTM with Autoencoder as the most accurate model to forecast the beginning and end…

综合经济学 · 经济学 2021-07-26 Zihao Wang , Kun Li , Steve Q. Xia , Hongfu Liu

We use deep neural networks to estimate an asset pricing model for individual stock returns that takes advantage of the vast amount of conditioning information, while keeping a fully flexible form and accounting for time-variation. The key…

统计金融 · 定量金融 2021-08-12 Luyang Chen , Markus Pelger , Jason Zhu

This research paper introduces innovative approaches for multivariate time series forecasting based on different variations of the combined regression strategy. We use specific data preprocessing techniques which makes a radical change in…

机器学习 · 统计学 2024-05-09 Aryan Bhambu , Arabin Kumar Dey

We introduce a Bayesian sequential data assimilation method for COVID-19 forecasting. It is assumed that suitable transmission, epidemic and observation models are available and previously validated and the transmission and epidemic models…

The stock market is a fundamental component of financial systems, reflecting economic health, providing investment opportunities, and influencing global dynamics. Accurate stock market predictions can lead to significant gains and promote…

机器学习 · 计算机科学 2024-08-23 Gonzalo Lopez Gil , Paul Duhamel-Sebline , Andrew McCarren

Scientists often use observational time series data to study complex natural processes, but regression analyses often assume simplistic dynamics. Recent advances in deep learning have yielded startling improvements to the performance of…

机器学习 · 计算机科学 2023-04-21 Cory Shain , William Schuler

Precise financial series predicting has long been a difficult problem because of unstableness and many noises within the series. Although Traditional time series models like ARIMA and GARCH have been researched and proved to be effective in…

机器学习 · 计算机科学 2018-12-11 Xin-Yao Qian

Long term investment is one of the major investment strategies. However, calculating intrinsic value of some company and evaluating shares for long term investment is not easy, since analyst have to care about a large number of financial…

机器学习 · 计算机科学 2024-04-11 Nikola Milosevic

Time Series Classification and Extrinsic Regression are important and challenging machine learning tasks. Deep learning has revolutionized natural language processing and computer vision and holds great promise in other fields such as time…

The Prevalence of Community support and engagement for different domains in the tech industry has changed and evolved throughout the years. In this study, we aim to understand, analyze and predict the trends of technology in a scientific…

机器学习 · 计算机科学 2021-08-19 Raja CSP Raman , Rohith Mahadevan , Divya Perumal , Vedha Sankar , Talha Abdur Rahman

Extracting previously unknown patterns and information in time series is central to many real-world applications. In this study, we introduce a novel approach to modeling financial time series using a deep learning model. We use a Long…

统计金融 · 定量金融 2020-07-15 Jungsik Hwang

Financial literacy is increasingly dependent on the ability to interpret complex financial data and utilize advanced forecasting tools. In this context, this study proposes a novel approach that combines transformer-based time series models…

统计金融 · 定量金融 2025-06-10 Sukru Selim Calik , Andac Akyuz , Zeynep Hilal Kilimci , Kerem Colak

Organizing and managing cryptocurrency portfolios and decision-making on transactions is crucial in this market. Optimal selection of assets is one of the main challenges that requires accurate prediction of the price of cryptocurrencies.…

机器学习 · 计算机科学 2024-12-20 Arash Peik , Mohammad Ali Zare Chahooki , Amin Milani Fard , Mehdi Agha Sarram

Data augmentation methods in combination with deep neural networks have been used extensively in computer vision on classification tasks, achieving great success; however, their use in time series classification is still at an early stage.…

统计金融 · 定量金融 2020-10-29 Elizabeth Fons , Paula Dawson , Xiao-jun Zeng , John Keane , Alexandros Iosifidis