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相关论文: Peak-First CTC: Reducing the Peak Latency of CTC M…

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Text recognition methods are gaining rapid development. Some advanced techniques, e.g., powerful modules, language models, and un- and semi-supervised learning schemes, consecutively push the performance on public benchmarks forward.…

计算机视觉与模式识别 · 计算机科学 2024-01-01 Ziyin Zhang , Ning Lu , Minghui Liao , Yongshuai Huang , Cheng Li , Min Wang , Wei Peng

This paper introduces a novel method to diagnose the source-target attention in state-of-the-art end-to-end speech recognition models with joint connectionist temporal classification (CTC) and attention training. Our method is based on the…

音频与语音处理 · 电气工程与系统科学 2020-11-03 Nanxin Chen , Piotr Żelasko , Jesús Villalba , Najim Dehak

Connectionist Temporal Classification (CTC) suffers from the latency problem when applied to streaming models. We argue that in CTC lattice, the alignments that can access more future context are preferred during training, thereby leading…

音频与语音处理 · 电气工程与系统科学 2023-05-22 Zengwei Yao , Wei Kang , Fangjun Kuang , Liyong Guo , Xiaoyu Yang , Yifan Yang , Long Lin , Daniel Povey

Connectionist temporal classification (CTC) models are known to have peaky output distributions. Such behavior is not a problem for automatic speech recognition (ASR), but it can cause inaccurate forced alignments (FA), especially at finer…

音频与语音处理 · 电气工程与系统科学 2024-07-22 Ruizhe Huang , Xiaohui Zhang , Zhaoheng Ni , Li Sun , Moto Hira , Jeff Hwang , Vimal Manohar , Vineel Pratap , Matthew Wiesner , Shinji Watanabe , Daniel Povey , Sanjeev Khudanpur

Models trained on data composed of different groups or domains can suffer from severe performance degradation under distribution shifts. While recent methods have largely focused on optimizing the worst-group objective, this often comes at…

机器学习 · 计算机科学 2024-06-06 Hoang Phan , Andrew Gordon Wilson , Qi Lei

The connectionist temporal classification (CTC) enables end-to-end sequence learning by maximizing the probability of correctly recognizing sequences during training. The outputs of a CTC-trained model tend to form a series of spikes…

计算机视觉与模式识别 · 计算机科学 2020-07-08 Hongzhu Li , Weiqiang Wang

Sequence-to-Sequence (seq2seq) tasks transcribe the input sequence to a target sequence. The Connectionist Temporal Classification (CTC) criterion is widely used in multiple seq2seq tasks. Besides predicting the target sequence, a side…

计算与语言 · 计算机科学 2023-02-01 Jinchuan Tian , Brian Yan , Jianwei Yu , Chao Weng , Dong Yu , Shinji Watanabe

Neural Transducer and connectionist temporal classification (CTC) are popular end-to-end automatic speech recognition systems. Due to their frame-synchronous design, blank symbols are introduced to address the length mismatch between…

音频与语音处理 · 电气工程与系统科学 2023-05-22 Yifan Yang , Xiaoyu Yang , Liyong Guo , Zengwei Yao , Wei Kang , Fangjun Kuang , Long Lin , Xie Chen , Daniel Povey

Conformal prediction has been explored as a general and efficient way to provide uncertainty quantification for time series. However, current methods struggle to handle time series data with change points - sudden shifts in the underlying…

机器学习 · 计算机科学 2025-12-02 Sophia Sun , Rose Yu

Consistency models have recently been introduced to accelerate sampling from diffusion models by directly predicting the solution (i.e., data) of the probability flow ODE (PF ODE) from initial noise. However, the training of consistency…

机器学习 · 计算机科学 2025-01-24 Sangyun Lee , Yilun Xu , Tomas Geffner , Giulia Fanti , Karsten Kreis , Arash Vahdat , Weili Nie

Probabilistic Circuits (PCs) are a promising avenue for probabilistic modeling. They combine advantages of probabilistic graphical models (PGMs) with those of neural networks (NNs). Crucially, however, they are tractable probabilistic…

机器学习 · 计算机科学 2021-06-07 Anji Liu , Guy Van den Broeck

We develop a machine-learning framework to learn hyperparameter sequences for accelerated first-order methods (e.g., the step size and momentum sequences in accelerated gradient descent) to quickly solve parametric convex optimization…

最优化与控制 · 数学 2025-10-07 Rajiv Sambharya , Jinho Bok , Nikolai Matni , George Pappas

CTC-based streaming ASR has gained significant attention in real-world applications but faces two main challenges: accuracy degradation in small chunks and token emission latency. To mitigate these challenges, we propose Delayed-KD, which…

声音 · 计算机科学 2025-05-29 Longhao Li , Yangze Li , Hongfei Xue , Jie Liu , Shuai Fang , Kai Wang , Lei Xie

Multi-step prediction models, such as diffusion and rectified flow models, have emerged as state-of-the-art solutions for generation tasks. However, these models exhibit higher latency in sampling new frames compared to single-step methods.…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Gaurav Shrivastava , Abhinav Shrivastava

Continuous-time generative models, such as diffusion models, flow matching, and rectified flow, learn time-dependent vector fields but are typically trained with objectives that treat timesteps independently, leading to high estimator…

机器学习 · 计算机科学 2026-02-23 Chika Maduabuchi , Jindong Wang

Model Predictive Control (MPC) is widely used in robot control by optimizing a sequence of control outputs over a finite-horizon. Computational approaches for MPC include deterministic methods (e.g., iLQR and COBYLA), as well as…

机器人学 · 计算机科学 2025-11-03 Zhaoxin Li , Xiaoke Wang , Letian Chen , Rohan Paleja , Subramanya Nageshrao , Matthew Gombolay

We propose \textit{Meta-Regularization}, a novel approach for the adaptive choice of the learning rate in first-order gradient descent methods. Our approach modifies the objective function by adding a regularization term on the learning…

机器学习 · 计算机科学 2021-04-13 Guangzeng Xie , Hao Jin , Dachao Lin , Zhihua Zhang

This paper investigates the problem of robust model predictive control (RMPC) of linear-time-invariant (LTI) discrete-time systems subject to structured uncertainty and bounded disturbances. Typically, the constrained RMPC problem with…

系统与控制 · 电气工程与系统科学 2022-08-18 Anastasis Georgiou , Furqan Tahir , Imad M. Jaimoukha , Simos A. Evangelou

Stochastic gradient descent is one of the most successful approaches for solving large-scale problems, especially in machine learning and statistics. At each iteration, it employs an unbiased estimator of the full gradient computed from one…

数值分析 · 数学 2018-12-05 Bangti Jin , Xiliang Lu

Phonetic speech transcription is crucial for fine-grained linguistic analysis and downstream speech applications. While Connectionist Temporal Classification (CTC) is a widely used approach for such tasks due to its efficiency, it often…

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