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In the present study, six meta-heuristic schemes are hybridized with artificial neural network (ANN), adaptive neuro-fuzzy interface system (ANFIS), and support vector machine (SVM), to predict monthly groundwater level (GWL), evaluate…

信号处理 · 电气工程与系统科学 2020-07-01 Akram Seifi , Mohammad Ehteram , Vijay P. Singh , Amir Mosavi

The present study introduces a method for improving the classification performance of imbalanced multiclass data streams from wireless body worn sensors. Data imbalance is an inherent problem in activity recognition caused by the irregular…

机器学习 · 计算机科学 2016-03-14 Roberto L. Shinmoto Torres , Damith C. Ranasinghe , Qinfeng Shi , Anton van den Hengel

Accurate and timely identification of plant leaf diseases is essential for resilient and sustainable agriculture, yet most deep learning approaches rely on large annotated datasets and computationally intensive models that are unsuitable…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Anika Islam , Tasfia Tahsin , Zaarin Anjum , Md. Bakhtiar Hasan , Md. Hasanul Kabir

Robot manipulation has increasingly adopted data-driven generative policy frameworks, yet the field faces a persistent trade-off: diffusion models suffer from high inference latency, while flow-based methods often require complex…

机器人学 · 计算机科学 2026-01-30 Han Fang , Yize Huang , Yuheng Zhao , Paul Weng , Xiao Li , Yutong Ban

This paper introduces Weighted Optimal Classification Forests (WOCFs), a new family of classifiers that takes advantage of an optimal ensemble of decision trees to derive accurate and interpretable classifiers. We propose a novel…

最优化与控制 · 数学 2024-12-02 Víctor Blanco , Alberto Japón , Justo Puerto , Peter Zhang

While adaptive experimental design has outgrown one-dimensional, staircase-based adaptations, most cognitive experiments still control a single factor and summarize performance with a scalar. We show a validation of a Bayesian, two-axis,…

机器学习 · 计算机科学 2025-10-02 Dom CP Marticorena , Chris Wissmann , Zeyu Lu , Dennis L Barbour

3D semantic occupancy and flow prediction are fundamental to spatiotemporal scene understanding. This paper proposes a vision-based framework with three targeted improvements. First, we introduce an occlusion-aware adaptive lifting…

计算机视觉与模式识别 · 计算机科学 2025-09-11 Dubing Chen , Jin Fang , Wencheng Han , Xinjing Cheng , Junbo Yin , Chenzhong Xu , Fahad Shahbaz Khan , Jianbing Shen

Surrogate modeling is a viable solution for applications involving repetitive evaluations of expensive computational fluid dynamics models, such as uncertainty quantification and inverse problems. This study proposes a multi-layer…

流体动力学 · 物理学 2024-06-24 Gurpreet S. Hora , Marco G. Giometto

Machine Learning (ML) is becoming increasingly popular in fluid dynamics. Powerful ML algorithms such as neural networks or ensemble methods are notoriously difficult to interpret. Here, we introduce the novel Shapley Additive Explanations…

流体动力学 · 物理学 2022-05-20 Martin Lellep , Jonathan Prexl , Bruno Eckhardt , Moritz Linkmann

Covalent organic frameworks (COFs) are promising photocatalysts for solar hydrogen production, yet the most electronically favorable linkages, imines, hydrolyze rapidly in water, creating a stability--activity trade-off that limits…

化学物理 · 物理学 2026-03-06 Iman Peivaste , Nicolas D. Boscher , Ahmed Makradi , Salim Belouettar

Flow-matching-based policies have recently emerged as a promising approach for learning-based robot manipulation, offering significant acceleration in action sampling compared to diffusion-based policies. However, conventional flow-matching…

机器人学 · 计算机科学 2025-10-03 Xuanran Zhai , Qianyou Zhao , Qiaojun Yu , Ce Hao

In the recent past, psychological stress has been increasingly observed in humans, and early detection is crucial to prevent health risks. Stress detection using on-device deep learning algorithms has been on the rise owing to advancements…

机器学习 · 计算机科学 2020-12-07 Abhijith Ragav , Gautham Krishna Gudur

Microarray technology is known as one of the most important tools for collecting DNA expression data. This technology allows researchers to investigate and examine types of diseases and their origins. However, microarray data are often…

定量方法 · 定量生物学 2021-01-05 Babak Nouri-Moghaddam , Mehdi Ghazanfari , Mohammad Fathian

Exploring the optimal management strategy for nitrogen and irrigation has a significant impact on crop yield, economic profit, and the environment. To tackle this optimization challenge, this paper introduces a deployable \textbf{CR}op…

人工智能 · 计算机科学 2024-11-12 Jing Wu , Zhixin Lai , Shengjie Liu , Suiyao Chen , Ran Tao , Pan Zhao , Chuyuan Tao , Yikun Cheng , Naira Hovakimyan

As Numerical Weather Prediction (NWP) models approach hectometric resolution, they increasingly enter a regime where urban heterogeneity is only partially resolved and the assumptions underlying conventional urban canopy models (UCMs)…

流体动力学 · 物理学 2026-05-21 Jingzi Huang , Maarten van Reeuwijk

We address the linear-mode analysis performed near an equilibrium configuration in the fluid rest frame with a dynamical magnetic field perturbed on a constant configuration. We develop a simple and general algorithm for an analytic…

等离子体物理 · 物理学 2024-09-30 Zhe Fang , Koichi Hattori , Jin Hu

PURPOSE: To extend magnitude-based PDFF (Proton Density Fat Fraction) and $R_2^*$ mapping with resolved water-fat ambiguity to calculate field inhomogeneity (field map) using the phase images. THEORY: The estimation is formulated in matrix…

AC optimal power flow (ACOPF) is foundational yet computationally expensive in power grid operations, driving learning-based surrogates for large-scale grid analysis. These surrogates, however, often fail to generalize across network…

机器学习 · 计算机科学 2026-05-05 Hongwei Jin , Keunju Song , Zeeshan Memon , Yijiang Li , Stefano Fenu , Hongseok Kim , Liang Zhao , Kibaek Kim

ReaxFF is a computationally efficient model for reactive molecular dynamics simulations, which has been applied to a wide variety of chemical systems. When ReaxFF parameters are not yet available for a chemistry of interest, they must be…

Reinforcement learning from human feedback (RLHF) shows promise for aligning diffusion and flow models, yet policy optimization methods such as GRPO suffer from inefficient and static sampling strategies. These methods treat all prompts and…

机器学习 · 计算机科学 2026-02-09 Yuming Li , Qingyu Li , Chengyu Bai , Xiangyang Luo , Zeyue Xue , Wenyu Qin , Meng Wang , Yikai Wang , Shanghang Zhang