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This paper investigates the accuracy of bootstrap-based bias correction of persistence measures for long memory fractionally integrated processes. The bootstrap method is based on the semi-parametric sieve approach, with the dynamics in the…

Methodology · Statistics 2016-03-08 Simone D. Grose , Gael M. Martin , Donald S. Poskitt

We present a bidirectional unsupervised model pre-training (UPT) method and apply it to children's automatic speech recognition (ASR). An obstacle to improving child ASR is the scarcity of child speech databases. A common approach to…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-16 Ruchao Fan , Amber Afshan , Abeer Alwan

Effective adaptation to distribution shifts in training data is pivotal for sustaining robustness in neural networks, especially when removing specific biases or outdated information, a process known as machine unlearning. Traditional…

Machine Learning · Computer Science 2024-05-24 Ling Han , Hao Huang , Dustin Scheinost , Mary-Anne Hartley , María Rodríguez Martínez

Training a neural network with a large labeled dataset is still a dominant paradigm in computational histopathology. However, obtaining such exhaustive manual annotations is often expensive, laborious, and prone to inter and Intra-observer…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Chetan L. Srinidhi , Seung Wook Kim , Fu-Der Chen , Anne L. Martel

Quantification of behavior is critical in applications ranging from neuroscience, veterinary medicine and animal conservation efforts. A common key step for behavioral analysis is first extracting relevant keypoints on animals, known as…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Shaokai Ye , Anastasiia Filippova , Jessy Lauer , Steffen Schneider , Maxime Vidal , Tian Qiu , Alexander Mathis , Mackenzie Weygandt Mathis

As AI agents generate increasingly sophisticated behaviors, manually encoding human preferences to guide these agents becomes more challenging. To address this, it has been suggested that agents instead learn preferences from human choice…

Machine Learning · Computer Science 2024-12-24 Henrik Marklund , Benjamin Van Roy

Most existing sensor-based monitoring frameworks presume that a large available labeled dataset is processed to train accurate detection models. However, in settings where personalization is necessary at deployment time to fine-tune the…

Machine Learning · Computer Science 2023-05-02 Ali Tazarv , Sina Labbaf , Amir Rahmani , Nikil Dutt , Marco Levorato

Large language models are classically trained in stages: pretraining on raw text followed by post-training for instruction following and reasoning. However, this separation creates a fundamental limitation: many desirable behaviors such as…

User Behavior Modeling (UBM) plays a critical role in user interest learning, which has been extensively used in recommender systems. Crucial interactive patterns between users and items have been exploited, which brings compelling…

Information Retrieval · Computer Science 2023-02-23 Zhicheng He , Weiwen Liu , Wei Guo , Jiarui Qin , Yingxue Zhang , Yaochen Hu , Ruiming Tang

With surge in online platforms, there has been an upsurge in the user engagement on these platforms via comments and reactions. A large portion of such textual comments are abusive, rude and offensive to the audience. With machine learning…

Computation and Language · Computer Science 2021-08-17 Ayush Kumar , Pratik Kumar

Off-policy reinforcement learning aims to leverage experience collected from prior policies for sample-efficient learning. However, in practice, commonly used off-policy approximate dynamic programming methods based on Q-learning and…

Machine Learning · Computer Science 2019-11-26 Aviral Kumar , Justin Fu , George Tucker , Sergey Levine

Accurate uncertainty estimates can significantly improve the performance of iterative design of experiments, as in Sequential and Reinforcement learning. For many such problems in engineering and the physical sciences, the design task…

Machine Learning · Statistics 2022-05-20 Brendan Folie , Maxwell Hutchinson

Communicative gestures and speech acoustic are tightly linked. Our objective is to predict the timing of gestures according to the acoustic. That is, we want to predict when a certain gesture occurs. We develop a model based on a recurrent…

Human-Computer Interaction · Computer Science 2021-04-27 Fajrian Yunus , Chloé Clavel , Catherine Pelachaud

Pretraining on noisy, internet-scale datasets has been heavily studied as a technique for training models with broad, general capabilities for text, images, and other modalities. However, for many sequential decision domains such as…

Machine Learning · Computer Science 2022-06-24 Bowen Baker , Ilge Akkaya , Peter Zhokhov , Joost Huizinga , Jie Tang , Adrien Ecoffet , Brandon Houghton , Raul Sampedro , Jeff Clune

Amortized Bayesian Inference (ABI) enables efficient posterior estimation using generative neural networks trained on simulated data, but often suffers from performance degradation under model misspecification. While self-consistency (SC)…

Machine Learning · Statistics 2026-02-27 Aayush Mishra , Šimon Kucharský , Paul-Christian Bürkner

Pre-trained models are nowadays a fundamental component of machine learning research. In continual learning, they are commonly used to initialize the model before training on the stream of non-stationary data. However, pre-training is…

Machine Learning · Computer Science 2022-05-20 Andrea Cossu , Tinne Tuytelaars , Antonio Carta , Lucia Passaro , Vincenzo Lomonaco , Davide Bacciu

The ability of intelligent systems to predict human behaviors is crucial, particularly in fields such as autonomous vehicle navigation and social robotics. However, the complexity of human motion have prevented the development of a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Yang Gao , Po-Chien Luan , Alexandre Alahi

As the pretraining technique is growing in popularity, little work has been done on pretrained learning-based motion prediction methods in autonomous driving. In this paper, we propose a framework to formalize the pretraining task for…

Robotics · Computer Science 2023-09-19 Yi Yang , Qingwen Zhang , Thomas Gilles , Nazre Batool , John Folkesson

Pre-training has achieved remarkable success when transferred to downstream tasks. In machine learning, we care about not only the good performance of a model but also its behavior under reasonable shifts of condition. The same philosophy…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Jianghui Wang , Yang Chen , Xingyu Xie , Cong Fang , Zhouchen Lin

Handling anomalies is a critical preprocessing step in multivariate time series prediction. However, existing approaches that separate anomaly preprocessing from model training for multivariate time series prediction encounter significant…

Machine Learning · Computer Science 2025-01-15 Yuanyuan Liang , Tianhao Zhang , Tingyu Xie