中文
相关论文

相关论文: The Meta-Learning Gap: Combining Hydra and Quant f…

200 篇论文

We propose a series of data-centric heuristics for improving the performance of machine learning systems when applied to problems in quantum information science. In particular, we consider how systematic engineering of training sets can…

量子物理 · 物理学 2022-10-05 Sanjaya Lohani , Joseph M. Lukens , Ryan T. Glasser , Thomas A. Searles , Brian T. Kirby

Recovery rate prediction plays a pivotal role in bond investment strategies by enhancing risk assessment, optimizing portfolio allocation, improving pricing accuracy, and supporting effective credit risk management. However, accurate…

计算金融 · 定量金融 2026-01-27 Ying Chen , Paul Griffin , Paolo Recchia , Lei Zhou , Hongrui Zhang

Task inharmony problem commonly occurs in modern object detectors, leading to inconsistent qualities between classification and regression tasks. The predicted boxes with high classification scores but poor localization positions or low…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Long Huang , Zhiwei Dong , Song-Lu Chen , Ruiyao Zhang , Shutong Ti , Feng Chen , Xu-Cheng Yin

Learning-to-learn or meta-learning leverages data-driven inductive bias to increase the efficiency of learning on a novel task. This approach encounters difficulty when transfer is not advantageous, for instance, when tasks are considerably…

机器学习 · 计算机科学 2019-06-20 Ghassen Jerfel , Erin Grant , Thomas L. Griffiths , Katherine Heller

We show that it is possible to achieve the same accuracy, on average, as the most accurate existing interval methods for time series classification on a standard set of benchmark datasets using a single type of feature (quantiles), fixed…

机器学习 · 计算机科学 2023-08-03 Angus Dempster , Daniel F. Schmidt , Geoffrey I. Webb

Machine learning interatomic potentials (MLIPs) enable accurate atomistic modelling, but reliable uncertainty quantification (UQ) remains elusive. In this study, we investigate two UQ strategies, ensemble learning and D-optimality, within…

材料科学 · 物理学 2025-08-06 Fei Shuang , Zixiong Wei , Kai Liu , Wei Gao , Poulumi Dey

The hybrid model combines the physics-based primitive-equations model SPEEDY with a machine learning-based (ML-based) model component, while ERA5 reanalyses provide the presumed true states of the atmosphere. Six-hourly simulated noisy…

混沌动力学 · 物理学 2025-09-29 Dylan Elliott , Troy Arcomano , Istvan Szunyogh , Brian R. Hunt

We introduce a framework to dynamically combine heterogeneous models called \texttt{DYCHEM}, which forecasts a set of time series that are related through an aggregation hierarchy. Different types of forecasting models can be employed as…

机器学习 · 计算机科学 2023-01-18 Xing Han , Jing Hu , Joydeep Ghosh

Beginning from a basic neural-network architecture, we test the potential benefits offered by a range of advanced techniques for machine learning, in particular deep learning, in the context of a typical classification problem encountered…

数据分析、统计与概率 · 物理学 2020-06-03 Giles Chatham Strong

Time series classification holds broad application value in communications, information countermeasures, finance, and medicine. However, state-of-the-art (SOTA) methods-including HIVE-COTE, Proximity Forest, and TS-CHIEF-exhibit high…

机器学习 · 计算机科学 2025-11-04 Wang Hao , Kuang Zhang , Hou Chengyu , Yuan Zhonghao , Tan Chenxing , Fu Weifeng , Zhu Yangying

Meta-learning enables learning systems to adapt quickly to new tasks, similar to humans. Different meta-learning approaches all work under/with the mini-batch episodic training framework. Such framework naturally gives the information about…

机器学习 · 计算机科学 2025-11-10 Shiguang Wu , Yaqing Wang , Yatao Bian , Quanming Yao

Contrastive representation learning is crucial in medical time series analysis as it alleviates dependency on labor-intensive, domain-specific, and scarce expert annotations. However, existing contrastive learning methods primarily focus on…

机器学习 · 计算机科学 2023-11-07 Yihe Wang , Yu Han , Haishuai Wang , Xiang Zhang

Combining Reinforcement Learning (RL) with a prior controller can yield the best out of two worlds: RL can solve complex nonlinear problems, while the control prior ensures safer exploration and speeds up training. Prior work largely blends…

机器学习 · 计算机科学 2024-07-02 Emma Cramer , Bernd Frauenknecht , Ramil Sabirov , Sebastian Trimpe

Human mesh recovery from single images remains challenging due to inherent depth ambiguity and limited generalization across domains. While recent methods combine regression and optimization approaches, they struggle with poor…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Shaurjya Mandal , Nutan Sharma , John Galeotti

Most enterprise data is distributed in multiple relational databases with expert-designed schema. Using traditional single-table machine learning techniques over such data not only incur a computational penalty for converting to a 'flat'…

机器学习 · 计算机科学 2012-03-14 Geetha Manjunatha , M Narasimha Murty , Dinkar Sitaram

The Quantum Approximate Optimization Algorithm (QAOA) is a leading approach for solving combinatorial optimization problems on near-term quantum processors. However, finding good variational parameters remains a significant challenge due to…

量子物理 · 物理学 2025-12-05 Yu-Cheng Lin , Yu-Chao Hsu , Samuel Yen-Chi Chen

Over the past decade, deep neural networks have demonstrated significant success using the training scheme that involves mini-batch stochastic gradient descent on extensive datasets. Expanding upon this accomplishment, there has been a…

机器学习 · 计算机科学 2024-11-11 Jaehyeon Son , Soochan Lee , Gunhee Kim

Across engineering and scientific domains, traditional deep learning (TDL) models perform well when training and test data share the same distribution. However, the dynamic nature of real-world data, broadly termed \textit{data shift},…

机器学习 · 计算机科学 2026-01-15 Samuel Myren , Nidhi Parikh , Natalie Klein

Many different machine learning algorithms exist; taking into account each algorithm's hyperparameters, there is a staggeringly large number of possible alternatives overall. We consider the problem of simultaneously selecting a learning…

机器学习 · 计算机科学 2013-03-08 Chris Thornton , Frank Hutter , Holger H. Hoos , Kevin Leyton-Brown

As a type of prominent studies in deep learning, generative models have been widely investigated in research recently. Two research branches of the deep learning models, the Generative Networks (GANs, VAE) and the Semantic Segmentation,…

机器学习 · 计算机科学 2021-05-11 Feng Shi , Ziheng Xu , Tao Yuan , Song-Chun Zhu