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For end-to-end speech translation, regularizing the encoder with the Connectionist Temporal Classification (CTC) objective using the source transcript or target translation as labels can greatly improve quality metrics. However, CTC demands…

Computation and Language · Computer Science 2023-02-22 Biao Zhang , Barry Haddow , Rico Sennrich

State-of-the-art multilingual machine translation relies on a universal encoder-decoder, which requires retraining the entire system to add new languages. In this paper, we propose an alternative approach that is based on language-specific…

Computation and Language · Computer Science 2020-04-15 Carlos Escolano , Marta R. Costa-jussà , José A. R. Fonollosa , Mikel Artetxe

In this work, we perform an empirical comparison among the CTC, RNN-Transducer, and attention-based Seq2Seq models for end-to-end speech recognition. We show that, without any language model, Seq2Seq and RNN-Transducer models both…

Computation and Language · Computer Science 2017-07-25 Eric Battenberg , Jitong Chen , Rewon Child , Adam Coates , Yashesh Gaur , Yi Li , Hairong Liu , Sanjeev Satheesh , David Seetapun , Anuroop Sriram , Zhenyao Zhu

In this paper, we present a simple and efficient GEC sequence tagger using a Transformer encoder. Our system is pre-trained on synthetic data and then fine-tuned in two stages: first on errorful corpora, and second on a combination of…

Computation and Language · Computer Science 2020-06-01 Kostiantyn Omelianchuk , Vitaliy Atrasevych , Artem Chernodub , Oleksandr Skurzhanskyi

It is challenging to extract semantic meanings directly from audio signals in spoken language understanding (SLU), due to the lack of textual information. Popular end-to-end (E2E) SLU models utilize sequence-to-sequence automatic speech…

Computation and Language · Computer Science 2023-06-05 Jixuan Wang , Martin Radfar , Kai Wei , Clement Chung

Encoder-decoder models such as FLAN-T5 are finetuned to follow instructions, but often fail when the instructions conflict with memorized continuations ingrained during training. To understand this behavior, we adapt DoLa to FLAN-T5 and…

Computation and Language · Computer Science 2025-12-15 Huey Sun , Anabel Yong , Lorenzo Gilly , Felipe Jin

Transformer-based encoder-decoder models that generate outputs in a left-to-right fashion have become standard for sequence-to-sequence tasks. In this paper, we propose a framework for decoding that produces sequences from the "outside-in":…

Computation and Language · Computer Science 2023-10-31 Marc E. Canby , Julia Hockenmaier

Transformers evaluated in a single, fixed-depth pass are provably limited in expressive power to the constant-depth circuit class TC0. Running a Transformer autoregressively removes that ceiling -- first in next-token prediction and, more…

Machine Learning · Computer Science 2025-07-21 Mrinal Mathur , Mike Doan , Barak Pearlmutter , Sergey Plis

Encoder-decoder foundation models have displayed state-of-the-art performance on a range of autoregressive sequence tasks. This paper proposes a simple and lightweight modification to such systems to control the behaviour according to a…

Computation and Language · Computer Science 2024-05-06 Yassir Fathullah , Mark J. F. Gales

The recently proposed Sequence-to-Sequence (seq2seq) framework advocates replacing complex data processing pipelines, such as an entire automatic speech recognition system, with a single neural network trained in an end-to-end fashion. In…

Neural and Evolutionary Computing · Computer Science 2016-12-09 Jan Chorowski , Navdeep Jaitly

This paper studies a novel pre-training technique with unpaired speech data, Speech2C, for encoder-decoder based automatic speech recognition (ASR). Within a multi-task learning framework, we introduce two pre-training tasks for the…

Sound · Computer Science 2022-06-22 Junyi Ao , Ziqiang Zhang , Long Zhou , Shujie Liu , Haizhou Li , Tom Ko , Lirong Dai , Jinyu Li , Yao Qian , Furu Wei

Temporal expressions in text play a significant role in language understanding and correctly identifying them is fundamental to various retrieval and natural language processing systems. Previous works have slowly shifted from rule-based to…

Computation and Language · Computer Science 2022-01-25 Satya Almasian , Dennis Aumiller , Michael Gertz

The problem of learning a minimal consistent model from a set of labeled sequences of symbols is addressed from a satisfiability modulo theories perspective. We present two encodings for deterministic finite automata and extend one of these…

Formal Languages and Automata Theory · Computer Science 2017-05-31 Rick Smetsers

In our previous work we demonstrated that a single headed attention encoder-decoder model is able to reach state-of-the-art results in conversational speech recognition. In this paper, we further improve the results for both Switchboard 300…

Computation and Language · Computer Science 2021-05-04 Zoltán Tüske , George Saon , Brian Kingsbury

Spoken Language Understanding (SLU) is a critical speech recognition application and is often deployed on edge devices. Consequently, on-device processing plays a significant role in the practical implementation of SLU. This paper focuses…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-05 Yosuke Kashiwagi , Siddhant Arora , Hayato Futami , Jessica Huynh , Shih-Lun Wu , Yifan Peng , Brian Yan , Emiru Tsunoo , Shinji Watanabe

This paper proposes a novel end-to-end architecture for task-oriented dialogue systems. It is based on a simple and practical yet very effective sequence-to-sequence approach, where language understanding and state tracking tasks are…

Computation and Language · Computer Science 2019-08-08 Lei Shu , Piero Molino , Mahdi Namazifar , Hu Xu , Bing Liu , Huaixiu Zheng , Gokhan Tur

Recently, encoder-decoder neural networks have shown impressive performance on many sequence-related tasks. The architecture commonly uses an attentional mechanism which allows the model to learn alignments between the source and the target…

Computation and Language · Computer Science 2017-11-06 Andros Tjandra , Sakriani Sakti , Satoshi Nakamura

Connectionist Temporal Classification (CTC) based end-to-end speech recognition system usually need to incorporate an external language model by using WFST-based decoding in order to achieve promising results. This is more essential to…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-24 Shiliang Zhang , Ming Lei , Zhijie Yan

Connecting multiple smaller qubit modules by generating high-fidelity entangled states is a promising path for scaling quantum computing hardware. The performance of such a modular quantum computer is highly dependent on the quality and…

The sequence-to-sequence (seq2seq) task aims at generating the target sequence based on the given input source sequence. Traditionally, most of the seq2seq task is resolved by the Encoder-Decoder framework which requires an encoder to…

Computation and Language · Computer Science 2023-04-11 Zihao Fu , Wai Lam , Qian Yu , Anthony Man-Cho So , Shengding Hu , Zhiyuan Liu , Nigel Collier