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Keyword Spotting (KWS) is an essential component in a smart device for alerting the system when a user prompts it with a command. As these devices are typically constrained by computational and energy resources, the KWS model should be…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-24 Donghyeon Kim , Kyungdeuk Ko , David K. Han , Hanseok Ko

We propose a novel language-universal approach to end-to-end automatic spoken keyword recognition (SKR) leveraging upon (i) a self-supervised pre-trained model, and (ii) a set of universal speech attributes (manner and place of…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-05 Hao Yen , Pin-Jui Ku , Sabato Marco Siniscalchi , Chin-Hui Lee

In this paper, we propose an attention-based end-to-end neural approach for small-footprint keyword spotting (KWS), which aims to simplify the pipelines of building a production-quality KWS system. Our model consists of an encoder and an…

Sound · Computer Science 2018-03-30 Changhao Shan , Junbo Zhang , Yujun Wang , Lei Xie

Keyword localisation is the task of finding where in a speech utterance a given query keyword occurs. We investigate to what extent keyword localisation is possible using a visually grounded speech (VGS) model. VGS models are trained on…

Computation and Language · Computer Science 2022-11-23 Kayode Olaleye , Dan Oneata , Herman Kamper

This paper introduces the system submitted by the DKU-SMIIP team for the Auto-KWS 2021 Challenge. Our implementation consists of a two-stage keyword spotting system based on query-by-example spoken term detection and a speaker verification…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-13 Yechen Wang , Yan Jia , Murong Ma , Zexin Cai , Ming Li

In this paper, we propose DS-KWS, a two-stage framework for robust user-defined keyword spotting. It combines a CTC-based method with a streaming phoneme search module to locate candidate segments, followed by a QbyT-based method with a…

Sound · Computer Science 2025-10-14 Zhiqi Ai , Han Cheng , Yuxin Wang , Shiyi Mu , Shugong Xu , Yongjin Zhou

In this paper, we propose a sequence-to-sequence model for keyword spotting (KWS). Compared with other end-to-end architectures for KWS, our model simplifies the pipelines of production-quality KWS system and satisfies the requirement of…

Sound · Computer Science 2018-11-02 Haitong Zhang , Junbo Zhang , Yujun Wang

Visual Speech Recognition (VSR) is the process of recognizing or interpreting speech by watching the lip movements of the speaker. Recent machine learning based approaches model VSR as a classification problem; however, the scarcity of…

Few-shot keyword spotting (FS-KWS) models usually require large-scale annotated datasets to generalize to unseen target keywords. However, existing KWS datasets are limited in scale and gathering keyword-like labeled data is costly…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-06 Seunghan Yang , Byeonggeun Kim , Kyuhong Shim , Simyung Chang

Deep neural networks provide effective solutions to small-footprint keyword spotting (KWS). However, if training data is limited, it remains challenging to achieve robust and highly accurate KWS in real-world scenarios where unseen sounds…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-14 Menglong Xu , Shengqiang Li , Chengdong Liang , Xiao-Lei Zhang

User-defined keyword spotting (KWS) is crucial for personalized voice interaction, yet existing methods face several challenges: (1) insufficient discriminability among confusable words, (2) performance inconsistency across speakers with…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-22 Zhiqi Ai , Han Cheng , Shiyi Mu , Xinnuo Li , Yongjin Zhou , Shugong Xu

Visual Word Sense Disambiguation (VWSD) is a novel challenging task that lies between linguistic sense disambiguation and fine-grained multimodal retrieval. The recent advancements in the development of visiolinguistic (VL) transformers…

Computation and Language · Computer Science 2024-04-23 Anastasia Kritharoula , Maria Lymperaiou , Giorgos Stamou

Zero-Shot Learning (ZSL) is an emerging research that aims to solve the classification problems with very few training data. The present works on ZSL mainly focus on the mapping of learning semantic space to visual space. It encounters many…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Zeng Ting , Xiang Hongxin , Xie Cheng , Yang Yun , Liu Qing

Conversational agents commonly utilize keyword spotting (KWS) to initiate voice interaction with the user. For user experience and privacy considerations, existing approaches to KWS largely focus on accuracy, which can often come at the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-30 Christin Jose , Joseph Wang , Grant P. Strimel , Mohammad Omar Khursheed , Yuriy Mishchenko , Brian Kulis

In this paper, we propose MM-KWS, a novel approach to user-defined keyword spotting leveraging multi-modal enrollments of text and speech templates. Unlike previous methods that focus solely on either text or speech features, MM-KWS…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-12 Zhiqi Ai , Zhiyong Chen , Shugong Xu

Keyword spotting (KWS) is an essential function that enables interaction with ubiquitous smart devices. However, in resource-limited devices, KWS models are often static and can thus not adapt to new scenarios, such as added keywords. To…

This paper introduces neural architecture search (NAS) for the automatic discovery of end-to-end keyword spotting (KWS) models in limited resource environments. We employ a differentiable NAS approach to optimize the structure of…

Sound · Computer Science 2021-04-15 David Peter , Wolfgang Roth , Franz Pernkopf

Custom keyword spotting (KWS) allows detecting user-defined spoken keywords from streaming audio. This is achieved by comparing the embeddings from voice enrollments and input audio. State-of-the-art custom KWS models are typically trained…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-06 Pai Zhu , Quan Wang , Dhruuv Agarwal , Kurt Partridge

This paper introduces a novel approach for streaming openvocabulary keyword spotting (KWS) with text-based keyword enrollment. For every input frame, the proposed method finds the optimal alignment ending at the frame using connectionist…

Sound · Computer Science 2024-09-27 Sichen Jin , Youngmoon Jung , Seungjin Lee , Jaeyoung Roh , Changwoo Han , Hoonyoung Cho

Voice assistants are now widely available, and to activate them a keyword spotting (KWS) algorithm is used. Modern KWS systems are mainly trained using supervised learning methods and require a large amount of labelled data to achieve a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-28 Jacob Mørk , Holger Severin Bovbjerg , Gergely Kiss , Zheng-Hua Tan