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Real-world multiobjective optimization problems usually involve conflicting objectives that change over time, which requires the optimization algorithms to quickly track the Pareto optimal front (POF) when the environment changes. In recent…

神经与进化计算 · 计算机科学 2021-02-25 Dejun Xu , Min Jiang , Weizhen Hu , Shaozi Li , Renhu Pan , Gary G. Yen

Support Vector Machine (SVM) algorithm requires a high computational cost (both in memory and time) to solve a complex quadratic programming (QP) optimization problem during the training process. Consequently, SVM necessitates high…

分布式、并行与集群计算 · 计算机科学 2023-11-28 Islam Elgarhy

Accuracy and timeliness are indeed often conflicting goals in prediction tasks. Premature predictions may yield a higher rate of false alarms, whereas delaying predictions to gather more information can render them too late to be useful. In…

机器学习 · 计算机科学 2024-06-19 Wei Shao , Yufan Kang , Ziyan Peng , Xiao Xiao , Lei Wang , Yuhui Yang , Flora D Salim

We consider the problem of power demand forecasting in residential micro-grids. Several approaches using ARMA models, support vector machines, and recurrent neural networks that perform one-step ahead predictions have been proposed in the…

神经与进化计算 · 计算机科学 2017-06-30 Riccardo Bonetto , Michele Rossi

The task of predicting future stock values has always been one that is heavily desired albeit very difficult. This difficulty arises from stocks with non-stationary behavior, and without any explicit form. Hence, predictions are best made…

计算金融 · 定量金融 2019-04-19 Hieu Quang Nguyen , Abdul Hasib Rahimyar , Xiaodi Wang

A multi-period planning framework is proposed that exploits multi-step ahead traffic predictions to address service overprovisioning and improve adaptability to traffic changes, while ensuring the necessary quality-of-service (QoS) levels.…

网络与互联网体系结构 · 计算机科学 2025-02-13 Hafsa Maryam , Tania Panayiotou , Georgios Ellinas

Predictive linear and nonlinear models based on kernel machines or deep neural networks have been used to discover dependencies among time series. This paper proposes an efficient nonlinear modeling approach for multiple time series, with a…

机器学习 · 计算机科学 2023-10-02 Kevin Roy , Luis Miguel Lopez-Ramos , Baltasar Beferull-Lozano

We propose advances that address two key challenges in future trajectory prediction: (i) multimodality in both training data and predictions and (ii) constant time inference regardless of number of agents. Existing trajectory predictions…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Sriram N N , Buyu Liu , Francesco Pittaluga , Manmohan Chandraker

Support vector machine (SVM), is a popular kernel method for data classification that demonstrated its efficiency for a large range of practical applications. The method suffers, however, from some weaknesses including; time processing,…

机器学习 · 计算机科学 2023-08-23 Lakhdar Remaki

We propose an improved version of the SMO algorithm for training classification and regression SVMs, based on a Conjugate Descent procedure. This new approach only involves a modest increase on the computational cost of each iteration but,…

最优化与控制 · 数学 2020-03-20 Alberto Torres-Barrán , Carlos Alaíz , José R. Dorronsoro

We introduce a novel application of Support Vector Machines (SVM), an important Machine Learning algorithm, to determine the beginning and end of recessions in real time. Nowcasting, "forecasting" a condition about the present time because…

综合金融 · 定量金融 2019-06-28 Alexander James , Yaser S. Abu-Mostafa , Xiao Qiao

A promising way to improve the sample efficiency of reinforcement learning is model-based methods, in which many explorations and evaluations can happen in the learned models to save real-world samples. However, when the learned model has a…

机器学习 · 计算机科学 2022-09-14 Haoxin Lin , Yihao Sun , Jiaji Zhang , Yang Yu

The derivation of multi-step-ahead prediction models from sampled data of a linear system is considered. A dedicated prediction model is built for each future time step of interest. In addition to a nominal model, the set of all models…

系统与控制 · 计算机科学 2018-02-28 Enrico Terzi , Lorenzo Fagiano , Marcello Farina , Riccardo Scattolini

We introduce an efficient method for training the linear ranking support vector machine. The method combines cutting plane optimization with red-black tree based approach to subgradient calculations, and has O(m*s+m*log(m)) time complexity,…

机器学习 · 统计学 2022-02-07 Antti Airola , Tapio Pahikkala , Tapio Salakoski

Subsampling is a widely used and effective approach for addressing the computational challenges posed by massive datasets. Substantial progress has been made in developing non-uniform, probability-based subsampling schemes that prioritize…

统计方法学 · 统计学 2026-05-07 Dingyi Wang , Haiying Wang , Qingpei Hu

Signal Temporal Logic (STL) enables formal specification of complex spatiotemporal constraints for robotic task planning. However, synthesizing long-horizon continuous control trajectories from complex STL specifications is fundamentally…

机器人学 · 计算机科学 2026-03-17 Hongrui Zheng , Zirui Zang , Ahmad Amine , Cristian Ioan Vasile , Rahul Mangharam

State estimation in robotic systems presents significant challenges, particularly due to the prevalence of multimodal posterior distributions in real-world scenarios. One effective strategy for handling such complexity is to compute maximum…

机器人学 · 计算机科学 2026-01-27 Min-Won Seo , Solmaz S. Kia

The participants of the electricity market concern very much the market price evolution. Various technologies have been developed for price forecast. SVM (Support Vector Machine) has shown its good performance in market price forecast. Two…

综合金融 · 定量金融 2009-11-13 C. Gao , E. Bompard , R. Napoli , Q. Wan

In this paper, we propose a simple variant of the original SVRG, called variance reduced stochastic gradient descent (VR-SGD). Unlike the choices of snapshot and starting points in SVRG and its proximal variant, Prox-SVRG, the two vectors…

机器学习 · 计算机科学 2018-10-31 Fanhua Shang , Kaiwen Zhou , Hongying Liu , James Cheng , Ivor W. Tsang , Lijun Zhang , Dacheng Tao , Licheng Jiao

Long-term activity forecasting is an especially challenging research problem because it requires understanding the temporal relationships between observed actions, as well as the variability and complexity of human activities. Despite…

计算机视觉与模式识别 · 计算机科学 2023-07-25 Reuben Tan , Matthias De Lange , Michael Iuzzolino , Bryan A. Plummer , Kate Saenko , Karl Ridgeway , Lorenzo Torresani