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We introduce a new unsupervised pretraining objective for reinforcement learning. During the unsupervised reward-free pretraining phase, the agent maximizes mutual information between tasks and states induced by the policy. Our key…

Machine Learning · Computer Science 2021-09-01 Hao Liu , Pieter Abbeel

We present a global algorithm for training multilayer neural networks in this Letter. The algorithm is focused on controlling the local fields of neurons induced by the input of samples by random adaptations of the synaptic weights. Unlike…

Biological Physics · Physics 2007-05-23 Hong Zhao , Tao Jin

The data scarcity in low-resource languages has become a bottleneck to building robust neural machine translation systems. Fine-tuning a multilingual pre-trained model (e.g., mBART (Liu et al., 2020)) on the translation task is a good…

Computation and Language · Computer Science 2021-05-11 Zihan Liu , Genta Indra Winata , Pascale Fung

The goal of this work is to train a neural network which approximates solutions to the Navier-Stokes equations across a region of parameter space, in which the parameters define physical properties such as domain shape and boundary…

Computational Physics · Physics 2021-06-02 Christopher J Arthurs , Andrew P King

Domain-adaptive continual pretraining (DAPT) is a state-of-the-art technique that further trains a language model (LM) on its pretraining task, e.g., masked language modeling (MLM), when common domain adaptation via LM fine-tuning is not…

Computation and Language · Computer Science 2025-07-02 Anastasia Zhukova , Christian E. Matt , Bela Gipp

Backpropagation through time (BPTT) is a technique of updating tuned parameters within recurrent neural networks (RNNs). Several attempts at creating such an algorithm have been made including: Nth Ordered Approximations and Truncated-BPTT.…

Machine Learning · Computer Science 2025-06-26 George Bird , Maxim E. Polivoda

Prompt-based fine-tuning has boosted the performance of Pre-trained Language Models (PLMs) on few-shot text classification by employing task-specific prompts. Yet, PLMs are unfamiliar with prompt-style expressions during pre-training, which…

Computation and Language · Computer Science 2022-05-12 Jianing Wang , Chengyu Wang , Fuli Luo , Chuanqi Tan , Minghui Qiu , Fei Yang , Qiuhui Shi , Songfang Huang , Ming Gao

We propose TopoOpt, a novel direct-connect fabric for deep neural network (DNN) training workloads. TopoOpt co-optimizes the distributed training process across three dimensions: computation, communication, and network topology. We…

Networking and Internet Architecture · Computer Science 2022-10-03 Weiyang Wang , Moein Khazraee , Zhizhen Zhong , Manya Ghobadi , Zhihao Jia , Dheevatsa Mudigere , Ying Zhang , Anthony Kewitsch

Truncated Backpropagation Through Time (truncated BPTT) is a widespread method for learning recurrent computational graphs. Truncated BPTT keeps the computational benefits of Backpropagation Through Time (BPTT) while relieving the need for…

Neural and Evolutionary Computing · Computer Science 2017-05-24 Corentin Tallec , Yann Ollivier

Methods such as Layer Normalization (LN) and Batch Normalization (BN) have proven to be effective in improving the training of Recurrent Neural Networks (RNNs). However, existing methods normalize using only the instantaneous information at…

Machine Learning · Computer Science 2022-09-30 Cole Pospisil , Vasily Zadorozhnyy , Qiang Ye

Quantization is a technique for reducing deep neural networks (DNNs) training and inference times, which is crucial for training in resource constrained environments or applications where inference is time critical. State-of-the-art (SOTA)…

Machine Learning · Computer Science 2023-05-24 Lorenz Kummer , Kevin Sidak , Tabea Reichmann , Wilfried Gansterer

Automated segmentation of large volumes of medical images is often plagued by the limited availability of fully annotated data and the diversity of organ surface properties resulting from the use of different acquisition protocols for…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Yazhou Zhu , Shidong Wang , Tong Xin , Haofeng Zhang

Recent research has demonstrated the efficacy of pre-training graph neural networks (GNNs) to capture the transferable graph semantics and enhance the performance of various downstream tasks. However, the semantic knowledge learned from…

Machine Learning · Computer Science 2023-12-19 Mouxiang Chen , Zemin Liu , Chenghao Liu , Jundong Li , Qiheng Mao , Jianling Sun

Detailed pulmonary airway segmentation is a clinically important task for endobronchial intervention and treatment of peripheral located lung cancer lesions. Convolutional Neural Networks (CNNs) are promising tools for medical image…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Minghui Zhang , Guang-Zhong Yang , Yun Gu

We present a self-improving, Neural Tree Expansion (NTE) method for multi-robot online planning in non-cooperative environments, where each robot attempts to maximize its cumulative reward while interacting with other self-interested…

Robotics · Computer Science 2021-07-12 Benjamin Riviere , Wolfgang Hoenig , Matthew Anderson , Soon-Jo Chung

The multilevel Schwarz preconditioner is one of the most popular parallel preconditioners for enhancing convergence and improving parallel efficiency. However, its parallel implementation on arbitrary unstructured triangular/tetrahedral…

Numerical Analysis · Mathematics 2024-12-13 Chengdi Ma

Adversarial robustness of deep learning models has gained much traction in the last few years. Various attacks and defenses are proposed to improve the adversarial robustness of modern-day deep learning architectures. While all these…

Machine Learning · Computer Science 2021-08-27 Chaitanya Devaguptapu , Devansh Agarwal , Gaurav Mittal , Pulkit Gopalani , Vineeth N Balasubramanian

Neural networks pre-trained on a self-supervision scheme have become the standard when operating in data rich environments with scarce annotations. As such, fine-tuning a model to a downstream task in a parameter-efficient but effective…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Marc Fischer , Alexander Bartler , Bin Yang

Alternating minimization methods have recently been proposed as alternatives to the gradient descent for deep neural network optimization. Alternating minimization methods can typically decompose a deep neural network into layerwise…

Machine Learning · Computer Science 2020-09-18 Junxiang Wang , Zheng Chai , Yue Cheng , Liang Zhao

Automated program repair (APR) aims to fix software bugs automatically without human debugging efforts and plays a crucial role in software development and maintenance. Despite promising, APR is still challenged by a long-standing…

Software Engineering · Computer Science 2024-01-17 Quanjun Zhang , Chunrong Fang , Weisong Sun , Yan Liu , Tieke He , Xiaodong Hao , Zhenyu Chen
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