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In this article, we introduce a Gegenbauer autoregressive tempered fractionally integrated moving average (GARTFIMA) process. We work on the spectral density and autocovariance function for the introduced process. The parameter estimation…

统计理论 · 数学 2022-08-31 Niharika Bhootna , Arun Kumar

The success of autonomous systems will depend upon their ability to safely navigate human-centric environments. This motivates the need for a real-time, probabilistic forecasting algorithm for pedestrians, cyclists, and other agents since…

机器人学 · 计算机科学 2017-06-21 Henry O. Jacobs , Owen K. Hughes , Matthew Johnson-Roberson , Ram Vasudevan

We suggest how to construct joint confidence distributions for several parameters and apply these ideas to an autoregressive process of general order. The implied non informative prior for the parameters, i.e. the ratio between the…

统计方法学 · 统计学 2025-03-11 Rolf Larsson

Accurate prediction of financial time series is a key concern for market economy makers and investors. The article selects online store sales and Australian beer sales as representatives of non-stationary, trending, and seasonal financial…

信号处理 · 电气工程与系统科学 2024-06-10 Wei Chen , Yuanyuan Yang , Jianyu Liu

In this paper we consider the problem of decentralized (distributed) adaptive learning, where the aim of the network is to train the coefficients of a widely linear autoregressive moving average (ARMA) model by measurements collected by the…

分布式、并行与集群计算 · 计算机科学 2016-07-13 Azam Khalili , Reza G. Rahmati , Amir Rastegarnia , Wael M. Bazzi

In quantitative finance, it is often necessary to analyze the distribution of the sum of specific functions of observed values at discrete points of an underlying process. Examples include the probability density function, the hedging…

统计金融 · 定量金融 2019-08-15 Jong Jun Park , Kyungsub Lee

The article focuses on determining the predictive uncertainty of a model on the example of atrial fibrillation detection problem by a single-lead ECG signal. To this end, the model predicts parameters of the beta distribution over class…

计算机视觉与模式识别 · 计算机科学 2018-08-08 Alexander Kuvaev , Roman Khudorozhkov

Multivariate normal mixtures provide a flexible model for high-dimensional data. They are widely used in statistical genetics, statistical finance, and other disciplines. Due to the unboundedness of the likelihood function, classical…

统计理论 · 数学 2008-05-27 Jiahua Chen , Xianming Tan

The posterior in probabilistic programs with stochastic support decomposes as a weighted sum of the local posterior distributions associated with each possible program path. We show that making predictions with this full posterior…

机器学习 · 计算机科学 2024-04-15 Tim Reichelt , Luke Ong , Tom Rainforth

Accurate forecasting of project performance metrics is crucial for successfully managing and delivering urban road reconstruction projects. Traditional methods often rely on static baseline plans and fail to consider the dynamic nature of…

机器学习 · 计算机科学 2024-12-02 Soheila Sadeghi

During the last decade Levy processes with jumps have received increasing popularity for modelling market behaviour for both derviative pricing and risk management purposes. Chan et al. (2009) introduced the use of empirical likelihood…

统计方法学 · 统计学 2012-01-16 Steven Kou , Tony Sit , Zhiliang Ying

Forecasting time series data is an important subject in economics, business, and finance. Traditionally, there are several techniques to effectively forecast the next lag of time series data such as univariate Autoregressive (AR),…

机器学习 · 计算机科学 2019-03-05 Sima Siami-Namini , Akbar Siami Namin

Although the Bayesian paradigm offers a formal framework for estimating the entire probability distribution over uncertain parameters, its online implementation can be challenging due to high computational costs. We suggest the Adaptive…

机器学习 · 计算机科学 2023-10-23 Pedram Agand , Mo Chen , Hamid D. Taghirad

In this paper, we consider the distributed estimation problem of a linear stochastic system described by an autoregressive model with exogenous inputs (ARX) when both the system orders and parameters are unknown. We design distributed…

系统与控制 · 电气工程与系统科学 2021-10-20 Die Gan , Zhixin Liu

Univariate and multivariate normal probability distributions are widely used when modeling decisions under uncertainty. Computing the performance of such models requires integrating these distributions over specific domains, which can vary…

机器学习 · 统计学 2024-07-31 Abhranil Das , Wilson S Geisler

This paper attempts to answer a "simple question" in building predictive models using machine learning algorithms. Although diagnostic and predictive models for various diseases have been proposed using data from large cohort studies and…

机器学习 · 计算机科学 2024-09-04 Isao Goto

Distributed statistical learning problems arise commonly when dealing with large datasets. In this setup, datasets are partitioned over machines, which compute locally, and communicate short messages. Communication is often the bottleneck.…

统计理论 · 数学 2022-10-25 Edgar Dobriban , Yue Sheng

Many AI researchers argue that probability theory is only capable of dealing with uncertainty in situations where a full specification of a joint probability distribution is available, and conclude that it is not suitable for application in…

人工智能 · 计算机科学 2013-04-05 Linda C. van der Gaag

Performance estimation aims at estimating the loss that a predictive model will incur on unseen data. These procedures are part of the pipeline in every machine learning project and are used for assessing the overall generalisation ability…

机器学习 · 计算机科学 2021-08-31 Vitor Cerqueira , Luis Torgo , Igor Mozetic

Automated variable selection is widely applied in statistical model development. Algorithms like forward, backward or stepwise selection are available in statistical software packages like R and SAS. Many researchers have criticized the use…

统计方法学 · 统计学 2023-06-19 Bernd Engelmann