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In this paper, we present a new method for recognizing tones in continuous speech for tonal languages. The method works by converting the speech signal to a cepstrogram, extracting a sequence of cepstral features using a convolutional…

Audio and Speech Processing · Electrical Eng. & Systems 2018-07-09 Loren Lugosch , Vikrant Singh Tomar

Automatic emotion recognition plays a key role in computer-human interaction as it has the potential to enrich the next-generation artificial intelligence with emotional intelligence. It finds applications in customer and/or representative…

Sound · Computer Science 2022-02-21 Sarala Padi , Seyed Omid Sadjadi , Dinesh Manocha , Ram D. Sriram

Many machine learning problems such as speech recognition, gesture recognition, and handwriting recognition are concerned with simultaneous segmentation and labeling of sequence data. Latent-dynamic conditional random field (LDCRF) is a…

Machine Learning · Computer Science 2016-09-07 Amir Ahooye Atashin , Kamaledin Ghiasi-Shirazi , Ahad Harati

Training the state-of-the-art speech-to-text (STT) models in mobile devices is challenging due to its limited resources relative to a server environment. In addition, these models are trained on generic datasets that are not exhaustive in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-08 Zitha S , Raghavendra Rao Suresh , Pooja Rao , T. V. Prabhakar

In this work, we investigate two popular end-to-end automatic speech recognition (ASR) models, namely Connectionist Temporal Classification (CTC) and RNN-Transducer (RNN-T), for offline recognition of voice search queries, with up to 2B…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-25 Weiran Wang , Rohit Prabhavalkar , Dongseong Hwang , Qiujia Li , Khe Chai Sim , Bo Li , James Qin , Xingyu Cai , Adam Stooke , Zhong Meng , CJ Zheng , Yanzhang He , Tara Sainath , Pedro Moreno Mengibar

End-to-end intent classification using speech has numerous advantages compared to the conventional pipeline approach using automatic speech recognition (ASR), followed by natural language processing modules. It attempts to predict intent…

Computation and Language · Computer Science 2021-08-06 Yidi Jiang , Bidisha Sharma , Maulik Madhavi , Haizhou Li

Recent advances in speech language models (LLMs) have extended textual LLMs to the speech domain, but balancing speech understanding and generation remains challenging, especially with codec-based representations. We propose a continual…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-01 Jiatong Shi , Chunlei Zhang , Jinchuan Tian , Junrui Ni , Hao Zhang , Shinji Watanabe , Dong Yu

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…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-03 Nanxin Chen , Piotr Żelasko , Jesús Villalba , Najim Dehak

Attention-based sequence-to-sequence (seq2seq) models have achieved promising results in automatic speech recognition (ASR). However, as these models decode in a left-to-right way, they do not have access to context on the right. We…

Computation and Language · Computer Science 2020-08-11 Hayato Futami , Hirofumi Inaguma , Sei Ueno , Masato Mimura , Shinsuke Sakai , Tatsuya Kawahara

Adapting Automatic Speech Recognition (ASR) models to new domains results in a deterioration of performance on the original domain(s), a phenomenon called Catastrophic Forgetting (CF). Even monolingual ASR models cannot be extended to new…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-22 Steven Vander Eeckt , Hugo Van hamme

Conversational machine comprehension (CMC) requires understanding the context of multi-turn dialogue. Using BERT, a pre-training language model, has been successful for single-turn machine comprehension, while modeling multiple turns of…

Computation and Language · Computer Science 2019-05-31 Yasuhito Ohsugi , Itsumi Saito , Kyosuke Nishida , Hisako Asano , Junji Tomita

This paper introduces a novel training framework called Focused Discriminative Training (FDT) to further improve streaming word-piece end-to-end (E2E) automatic speech recognition (ASR) models trained using either CTC or an interpolation of…

Machine Learning · Computer Science 2024-08-26 Adnan Haider , Xingyu Na , Erik McDermott , Tim Ng , Zhen Huang , Xiaodan Zhuang

In this work, we explore a Connectionist Temporal Classification (CTC) based end-to-end Automatic Speech Recognition (ASR) model for the Myanmar language. A series of experiments is presented on the topology of the model in which the…

Machine Learning · Computer Science 2021-05-17 Khin Me Me Chit , Laet Laet Lin

Citation intention Classification (CIC) tools classify citations by their intention (e.g., background, motivation) and assist readers in evaluating the contribution of scientific literature. Prior research has shown that pretrained language…

Computation and Language · Computer Science 2024-10-18 Zeren Shui , Petros Karypis , Daniel S. Karls , Mingjian Wen , Saurav Manchanda , Ellad B. Tadmor , George Karypis

End-to-end speech recognition is a promising technology for enabling compact automatic speech recognition (ASR) systems since it can unify the acoustic and language model into a single neural network. However, as a drawback, training of…

Computation and Language · Computer Science 2022-02-17 Yotaro Kubo , Shigeki Karita , Michiel Bacchiani

Non-autoregressive mechanisms can significantly decrease inference time for speech transformers, especially when the single step variant is applied. Previous work on CTC alignment-based single step non-autoregressive transformer (CASS-NAT)…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-23 Ruchao Fan , Wei Chu , Peng Chang , Jing Xiao , Abeer Alwan

BERT-based models have shown a remarkable ability in the Chinese Spelling Check (CSC) task recently. However, traditional BERT-based methods still suffer from two limitations. First, although previous works have identified that explicit…

Computation and Language · Computer Science 2023-12-29 Yongchang Cao , Liang He , Zhen Wu , Xinyu Dai

We report an extension of a Keras Model, called CTCModel, to perform the Connectionist Temporal Classification (CTC) in a transparent way. Combined with Recurrent Neural Networks, the Connectionist Temporal Classification is the reference…

Machine Learning · Computer Science 2019-01-24 Yann Soullard , Cyprien Ruffino , Thierry Paquet

Background: Identifying relationships between clinical events and temporal expressions is a key challenge in meaningfully analyzing clinical text for use in advanced AI applications. While previous studies exist, the state-of-the-art…

Computation and Language · Computer Science 2020-04-15 Hong Guan , Jianfu Li , Hua Xu , Murthy Devarakonda

Large Language Models (LLMs) are strong decoders for Serialized Output Training (SOT) in two-talker Automatic Speech Recognition (ASR), yet their performance degrades substantially in challenging conditions such as three-talker mixtures. A…

Sound · Computer Science 2026-03-31 Hao Shi , Yuan Gao , Xugang Lu , Tatsuya Kawahara