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We study the non-Markovian random continuous processes described by the Mori-Zwanzig equation. As a starting point, we use the Markovian Gaussian Ornstein-Uhlenbeck process and introduce an integral memory term depending on the past of the…

统计力学 · 物理学 2019-12-04 S. S. Melnyk , V. A. Yampol'skii , O. V. Usatenko

By starting from the stochastic Schr\"odinger equation and quantum trajectory theory, we introduce memory effects by considering stochastic adapted coefficients. As an example of a natural non-Markovian extension of the theory of white…

量子物理 · 物理学 2011-11-30 A. Barchielli , P. Di Tella , C. Pellegrini , F. Petruccione

Short-term memory is essential for cognitive processing, yet our understanding of its neural mechanisms remains unclear. Neuroscience has long focused on how sequential activity patterns, where neurons fire one after another within large…

Semantic parsing using sequence-to-sequence models allows parsing of deeper representations compared to traditional word tagging based models. In spite of these advantages, widespread adoption of these models for real-time conversational…

计算与语言 · 计算机科学 2021-04-13 Arun Babu , Akshat Shrivastava , Armen Aghajanyan , Ahmed Aly , Angela Fan , Marjan Ghazvininejad

This paper investigates the applications of various multilingual approaches developed in conventional hidden Markov model (HMM) systems to sequence-to-sequence (seq2seq) automatic speech recognition (ASR). On a set composed of Babel data,…

音频与语音处理 · 电气工程与系统科学 2018-11-09 Martin Karafiát , Murali Karthick Baskar , Shinji Watanabe , Takaaki Hori , Matthew Wiesner , Jan "Honza'' Černocký

This work presents a general unsupervised learning method to improve the accuracy of sequence to sequence (seq2seq) models. In our method, the weights of the encoder and decoder of a seq2seq model are initialized with the pretrained weights…

计算与语言 · 计算机科学 2018-02-23 Prajit Ramachandran , Peter J. Liu , Quoc V. Le

Sequential activation of neurons is a common feature of network activity during a variety of behaviors, including working memory and decision making. Previous network models for sequences and memory emphasized specialized architectures in…

神经元与认知 · 定量生物学 2016-03-16 Kanaka Rajan , Christopher D Harvey , David W Tank

Training RNNs to learn long-term dependencies is difficult due to vanishing gradients. We explore an alternative solution based on explicit memorization using linear autoencoders for sequences, which allows to maximize the short-term memory…

机器学习 · 计算机科学 2020-11-06 Antonio Carta , Alessandro Sperduti , Davide Bacciu

Crafting adversarial examples has become an important technique to evaluate the robustness of deep neural networks (DNNs). However, most existing works focus on attacking the image classification problem since its input space is continuous…

机器学习 · 计算机科学 2020-04-22 Minhao Cheng , Jinfeng Yi , Pin-Yu Chen , Huan Zhang , Cho-Jui Hsieh

Noise aids the encoding of continuous signals into pulse sequences by way of stochastic resonance and endows the encoding device with a preferred frequency. We study encoding by a threshold device based on the Ornstein-Uhlenbeck process,…

生物物理 · 物理学 2007-05-23 Hans E. Plesser , Theo Geisel

Recurrent Neural Networks (RNNs) with Long Short-Term Memory units (LSTM) are widely used because they are expressive and are easy to train. Our interest lies in empirically evaluating the expressiveness and the learnability of LSTMs in the…

神经与进化计算 · 计算机科学 2015-11-24 Wojciech Zaremba , Ilya Sutskever

Prior to deep learning the semantic parsing community has been interested in understanding and modeling the range of possible word alignments between natural language sentences and their corresponding meaning representations.…

计算与语言 · 计算机科学 2022-11-15 Davide Locatelli , Ariadna Quattoni

We address an important problem in sequence-to-sequence (Seq2Seq) learning referred to as copying, in which certain segments in the input sequence are selectively replicated in the output sequence. A similar phenomenon is observable in…

计算与语言 · 计算机科学 2016-06-09 Jiatao Gu , Zhengdong Lu , Hang Li , Victor O. K. Li

When tasks change over time, meta-transfer learning seeks to improve the efficiency of learning a new task via both meta-learning and transfer-learning. While the standard attention has been effective in a variety of settings, we question…

机器学习 · 计算机科学 2020-06-30 Jaesik Yoon , Gautam Singh , Sungjin Ahn

The evolution of sequence modeling architectures, from recurrent neural networks and convolutional models to Transformers and structured state-space models, reflects ongoing efforts to address the diverse temporal dependencies inherent in…

机器学习 · 计算机科学 2025-06-10 Haotian Jiang , Zeyu Bao , Shida Wang , Qianxiao Li

This thesis introduces the sequence to sequence model with Luong's attention mechanism for end-to-end ASR. It also describes various neural network algorithms including Batch normalization, Dropout and Residual network which constitute the…

计算与语言 · 计算机科学 2017-10-13 Dan Lim

Traditionally, the automatic recognition of human activities is performed with supervised learning algorithms on limited sets of specific activities. This work proposes to recognize recurrent activity patterns, called routines, instead of…

机器学习 · 计算机科学 2019-07-11 Paul Compagnon , Grégoire Lefebvre , Stefan Duffner , Christophe Garcia

This paper proposes a novel Sequence-to-Sequence (Seq2Seq) model integrating the structure of Hidden Semi-Markov Models (HSMMs) into its attention mechanism. In speech synthesis, it has been shown that methods based on Seq2Seq models using…

音频与语音处理 · 电气工程与系统科学 2021-09-01 Yoshihiko Nankaku , Kenta Sumiya , Takenori Yoshimura , Shinji Takaki , Kei Hashimoto , Keiichiro Oura , Keiichi Tokuda

This paper investigates the supervised learning problem with observations drawn from certain general stationary stochastic processes. Here by \emph{general}, we mean that many stationary stochastic processes can be included. We show that…

机器学习 · 统计学 2016-05-11 Hanyuan Hang , Yunlong Feng , Ingo Steinwart , Johan A. K. Suykens

This paper explores a new research problem of unsupervised transfer learning across multiple spatiotemporal prediction tasks. Unlike most existing transfer learning methods that focus on fixing the discrepancy between supervised tasks, we…

机器学习 · 计算机科学 2020-09-25 Zhiyu Yao , Yunbo Wang , Mingsheng Long , Jianmin Wang