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Although attention based end-to-end models have achieved promising performance in speech recognition, the multi-pass forward computation in beam-search increases inference time cost, which limits their practical applications. To address…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-07 Ye Bai , Jiangyan Yi , Jianhua Tao , Zhengkun Tian , Zhengqi Wen , Shuai Zhang

Recognising dialogue acts (DA) is important for many natural language processing tasks such as dialogue generation and intention recognition. In this paper, we propose a dual-attention hierarchical recurrent neural network for DA…

Computation and Language · Computer Science 2019-10-11 Ruizhe Li , Chenghua Lin , Matthew Collinson , Xiao Li , Guanyi Chen

Phase wrapping is a major problem in direction-of-arrival (DOA) estimation using phase-difference observations. For a sensor pair with an inter-sensor spacing greater than half of the wavelength ($\lambda/2$) of the signal, phase wrapping…

Signal Processing · Electrical Eng. & Systems 2021-10-22 Hui Chen , Tarig Ballal , Tareq Y. Al-Naffouri

Spatial target speaker extraction isolates a desired speaker's voice in multi-speaker environments using spatial information, such as the direction of arrival (DoA). Although recent deep neural network (DNN)-based discriminative methods…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-23 Shrishti Saha Shetu , Emanuël A. P. Habets , Andreas Brendel

This paper focuses on the gridless direction-of-arrival (DoA) estimation for data acquired by non-uniform linear arrays (NLAs) in automotive applications. Atomic norm minimization (ANM) is a promising gridless sparse recovery algorithm…

Signal Processing · Electrical Eng. & Systems 2023-03-09 Silin Gao , Zhe Zhang , Muhan Wang , Yan Zhang , Jie Zhao , Bingchen Zhang , Yue Wang , Yirong Wu

In this paper, we address the problem of transmit beamspace design for multiple-input multiple-output (MIMO) radar with colocated antennas in application to direction-of-arrival (DOA) estimation. A new method for designing the transmit…

Information Theory · Computer Science 2015-06-16 Arash Khabbazibasmenj , Aboulnasr Hassanien , Sergiy A. Vorobyov , Matthew W. Morency

Single-snapshot direction-of-arrival (DOA) estimation using sparse linear arrays (SLAs) has gained significant attention in the field of automotive MIMO radars. This is due to the dynamic nature of automotive settings, where multiple…

Signal Processing · Electrical Eng. & Systems 2023-09-18 Yunqiao Hu , Shunqiao Sun

Neural machine learning models can successfully model language that is similar to their training distribution, but they are highly susceptible to degradation under distribution shift, which occurs in many practical applications when…

Machine Learning · Computer Science 2022-04-26 Antonio Valerio Miceli-Barone , Alexandra Birch , Rico Sennrich

Curating foundation speech models for edge and IoT settings, where computational resources vary over time, requires dynamic architectures featuring adaptable reduction strategies. One emerging approach is layer dropping ($\mathcal{LD}$)…

Sound · Computer Science 2025-07-11 Abdul Hannan , Daniele Falavigna , Alessio Brutti

Effectiveness of speech emotion recognition in real-world scenarios is often hindered by noisy environments and variability across datasets. This paper introduces a two-step approach to enhance the robustness and generalization of speech…

Sound · Computer Science 2025-10-13 Upasana Tiwari , Rupayan Chakraborty , Sunil Kumar Kopparapu

We study device-addressed speech detection under pre-ASR edge deployment constraints, where systems must decide whether to forward audio before transcription under strict latency and compute limits. We show that, in multi-speaker…

Sound · Computer Science 2026-04-10 David Joohun Kim , Daniyal Anjum , Bonny Banerjee , Omar Abbasi

To satisfy the high-resolution requirements of direction-of-arrival (DOA) estimation, conventional deep neural network (DNN)-based methods using grid idea need to significantly increase the number of output classifications and also produce…

Signal Processing · Electrical Eng. & Systems 2024-03-13 Yifan Li , Feng Shu , Jun Zou , Wei Gao , Yaoliang Song , Jiangzhou Wang

Existing large language models (LLMs) that mainly focus on Standard American English (SAE) often lead to significantly worse performance when being applied to other English dialects. While existing mitigations tackle discrepancies for…

Computation and Language · Computer Science 2023-12-07 Yanchen Liu , William Held , Diyi Yang

Structured language models for speech recognition have been shown to remedy the weaknesses of n-gram models. All current structured language models are, however, limited in that they do not take into account dependencies between…

Computation and Language · Computer Science 2007-05-23 Rens Bod

A new spatial IIR beamformer based direction-of-arrival (DoA) estimation method is proposed in this paper. We propose a retransmission based spatial feedback method for an array of transmit and receive antennas that improves the performance…

Signal Processing · Electrical Eng. & Systems 2023-09-07 Parth Mehta , Kumar Appaiah , Rajbabu Velmurugan

A novel approach combining agile beam switching with deep learning to enhance the speed and accuracy of Direction of Arrival (DOA) estimation for millimeter-wave (mmWave) phased array systems with low-complexity hardware implementations is…

Signal Processing · Electrical Eng. & Systems 2025-08-19 Arav Sharma , Lei Chi , Ari Gebhardt , Alon S. Levin , Timothy R. Hoerning , Sam Keene

The problem of two-dimensional (2-D) direction-of-arrival (DOA) estimation for the L-shaped nested array is considered. Typically, the multi-dimensional structure of the received signal in co-array domain is ignored in the problem…

Signal Processing · Electrical Eng. & Systems 2022-06-07 Feng Xu , Sergiy A. Vorobyov

Directions of arrival (DOA) estimation or localization of sources is an important problem in many applications for which numerous algorithms have been proposed. Most localization methods use block-level processing that combines multiple…

Signal Processing · Electrical Eng. & Systems 2022-04-21 Ruchi Pandey , Santosh Nannuru

We introduce SLED, an alternative approach to speech language modeling by encoding speech waveforms into sequences of continuous latent representations and modeling them autoregressively using an energy distance objective. The energy…

Computation and Language · Computer Science 2025-10-27 Zhengrui Ma , Yang Feng , Chenze Shao , Fandong Meng , Jie Zhou , Min Zhang

Over the recent years, various deep learning-based methods were proposed for extracting a fixed-dimensional embedding vector from speech signals. Although the deep learning-based embedding extraction methods have shown good performance in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-08 Woo Hyun Kang , Jahangir Alam , Abderrahim Fathan