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Despite being the cornerstone of deep learning, backpropagation is criticized for its inherent sequentiality, which can limit the scalability of very deep models. Such models faced convergence issues due to vanishing gradient, later…

机器学习 · 计算机科学 2025-04-01 Erwan Fagnou , Paul Caillon , Blaise Delattre , Alexandre Allauzen

In the process of recording, storage and transmission of time-domain audio signals, errors may be introduced that are difficult to correct in an unsupervised way. Here, we train a convolutional deep neural network to re-synthesize input…

声音 · 计算机科学 2015-03-20 Andrew J. R. Simpson

We propose $\textit{iterative inversion}$ -- an algorithm for learning an inverse function without input-output pairs, but only with samples from the desired output distribution and access to the forward function. The key challenge is a…

机器学习 · 计算机科学 2023-05-31 Gal Leibovich , Guy Jacob , Or Avner , Gal Novik , Aviv Tamar

Gradient temporal difference (Gradient TD) algorithms are a popular class of stochastic approximation (SA) algorithms used for policy evaluation in reinforcement learning. Here, we consider Gradient TD algorithms with an additional heavy…

机器学习 · 计算机科学 2021-11-23 Rohan Deb , Shalabh Bhatnagar

Dealing with uncertainty is essential for efficient reinforcement learning. There is a growing literature on uncertainty estimation for deep learning from fixed datasets, but many of the most popular approaches are poorly-suited to…

机器学习 · 统计学 2018-11-16 Ian Osband , John Aslanides , Albin Cassirer

In this paper, we address two key challenges in deep reinforcement learning setting, sample inefficiency and slow learning, with a dual NN-driven learning approach. In the proposed approach, we use two deep NNs with independent…

系统与控制 · 电气工程与系统科学 2021-10-29 Krishnan Raghavan , Vignesh Narayanan , Jagannathan Sarangapani

Spike-timing dependent plasticity (STDP) which observed in the brain has proven to be important in biological learning. On the other hand, artificial neural networks use a different way to learn, such as Back-Propagation or Contrastive…

神经与进化计算 · 计算机科学 2021-06-10 Shiyuan Li

Synaptic delays play a crucial role in biological neuronal networks, where their modulation has been observed in mammalian learning processes. In the realm of neuromorphic computing, although spiking neural networks (SNNs) aim to emulate…

神经与进化计算 · 计算机科学 2025-06-19 Marissa Dominijanni , Alexander Ororbia , Kenneth W. Regan

We introduce iterative tilting, a gradient-free method for fine-tuning diffusion models toward reward-tilted distributions. The method decomposes a large reward tilt $\exp(\lambda r)$ into $N$ sequential smaller tilts, each admitting a…

机器学习 · 统计学 2025-12-04 Jean Pachebat , Giovanni Conforti , Alain Durmus , Yazid Janati

The backpropagation algorithm has promoted the rapid development of deep learning, but it relies on a large amount of labeled data and still has a large gap with how humans learn. The human brain can quickly learn various conceptual…

神经与进化计算 · 计算机科学 2023-04-25 Yiting Dong , Dongcheng Zhao , Yang Li , Yi Zeng

The estimation of reverberation time from real-world signals plays a central role in a wide range of applications. In many scenarios, acoustic conditions change over time which in turn requires the estimate to be updated continuously.…

音频与语音处理 · 电气工程与系统科学 2022-10-11 Philipp Götz , Cagdas Tuna , Andreas Walther , Emanuël A. P. Habets

We propose a recurrent neural network for a "model-free" simulation of a dynamical system with unknown parameters without prior knowledge. The deep learning model aims to jointly learn the nonlinear time marching operator and the effects of…

机器学习 · 计算机科学 2021-03-01 Kyongmin Yeo , Dylan E. C. Grullon , Fan-Keng Sun , Duane S. Boning , Jayant R. Kalagnanam

We initiate the study of federated reinforcement learning under environmental heterogeneity by considering a policy evaluation problem. Our setup involves $N$ agents interacting with environments that share the same state and action space…

机器学习 · 计算机科学 2024-07-02 Han Wang , Aritra Mitra , Hamed Hassani , George J. Pappas , James Anderson

Backpropagation, a foundational algorithm for training artificial neural networks, predominates in contemporary deep learning. Although highly successful, it is widely considered biologically implausible, because it relies on precise…

机器学习 · 计算机科学 2025-10-07 Li Ji-An , Marcus K. Benna

Temporal difference (TD) learning is a cornerstone of reinforcement learning. In the average-reward setting, standard TD($\lambda$) is highly sensitive to the choice of step-size and thus requires careful tuning to maintain numerical…

机器学习 · 统计学 2025-10-08 Hwanwoo Kim , Dongkyu Derek Cho , Eric Laber

This work investigates the problem of learning temporal interaction networks. A temporal interaction network consists of a series of chronological interactions between users and items. Previous methods tackle this problem by using different…

社会与信息网络 · 计算机科学 2021-07-09 Jiangxia Cao , Xixun Lin , Xin Cong , Shu Guo , Hengzhu Tang , Tingwen Liu , Bin Wang

In this paper we present a deep learning method to predict the temporal evolution of dissipative dynamic systems. We propose using both geometric and thermodynamic inductive biases to improve accuracy and generalization of the resulting…

机器学习 · 计算机科学 2022-06-07 Quercus Hernández , Alberto Badías , Francisco Chinesta , Elías Cueto

Spiking neural network (SNN) is interesting both theoretically and practically because of its strong bio-inspiration nature and potentially outstanding energy efficiency. Unfortunately, its development has fallen far behind the conventional…

计算机视觉与模式识别 · 计算机科学 2021-09-20 Shibo Zhou , Xiaohua LI , Ying Chen , Sanjeev T. Chandrasekaran , Arindam Sanyal

Training recurrent neural networks (RNNs) with backpropagation through time (BPTT) has known drawbacks such as being difficult to capture longterm dependencies in sequences. Successful alternatives to BPTT have not yet been discovered.…

机器学习 · 计算机科学 2022-06-06 Fangxin Shang , Hao Zhang

Spiking neural networks have shown great promise for the design of low-power sensory-processing and edge-computing hardware platforms. However, implementing on-chip learning algorithms on such architectures is still an open challenge,…

神经与进化计算 · 计算机科学 2021-04-13 Matteo Cartiglia , Germain Haessig , Giacomo Indiveri