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Customizable keyword spotting (KWS) in continuous speech has attracted increasing attention due to its real-world application potential. While contrastive learning (CL) has been widely used to extract keyword representations, previous CL…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-15 Yu Xi , Baochen Yang , Hao Li , Jiaqi Guo , Kai Yu

We explore a keyword-based spoken language understanding system, in which the intent of the user can directly be derived from the detection of a sequence of keywords in the query. In this paper, we focus on an open-vocabulary keyword…

Computation and Language · Computer Science 2020-02-26 Théodore Bluche , Maël Primet , Thibault Gisselbrecht

Keyword Spotting (KWS) models are becoming increasingly integrated into various systems, e.g. voice assistants. To achieve satisfactory performance, these models typically rely on a large amount of labelled data, limiting their applications…

Sound · Computer Science 2023-05-25 Holger Severin Bovbjerg , Zheng-Hua Tan

Keyword spotting (KWS) is an important technique for speech applications, which enables users to activate devices by speaking a keyword phrase. Although a phoneme classifier can be used for KWS, exploiting a large amount of transcribed data…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-23 Takuya Higuchi , Anmol Gupta , Chandra Dhir

Previous studies on continual knowledge learning (CKL) in large language models (LLMs) have predominantly focused on approaches such as regularization, architectural modifications, and rehearsal techniques to mitigate catastrophic…

Computation and Language · Computer Science 2025-02-06 Yeongbin Seo , Dongha Lee , Jinyoung Yeo

Continual learning (CL) aims to empower models to learn new tasks without forgetting previously acquired knowledge. Most prior works concentrate on the techniques of architectures, replay data, regularization, \etc. However, the category…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Bolin Ni , Hongbo Zhao , Chenghao Zhang , Ke Hu , Gaofeng Meng , Zhaoxiang Zhang , Shiming Xiang

The Transformer architecture has been successful across many domains, including natural language processing, computer vision and speech recognition. In keyword spotting, self-attention has primarily been used on top of convolutional or…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-11 Axel Berg , Mark O'Connor , Miguel Tairum Cruz

Keyword spotting (KWS) is becoming a ubiquitous need with the advancement in artificial intelligence and smart devices. Recent work in this field have focused on several different architectures to achieve good results on datasets with low…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-17 Anwesh Mohanty , Adrian Frischknecht , Christoph Gerum , Oliver Bringmann

In this study, we investigate the application of keyword spotting (KWS) in the domain of Hindi speech recognition, utilizing a dataset comprising 40,000 audio samples. With a sampling rate of 44 kHz and an average duration of 1.9 seconds…

Sound · Computer Science 2026-05-06 Saru Bharti , Pushparaj Mani Pathak

We propose a max-pooling based loss function for training Long Short-Term Memory (LSTM) networks for small-footprint keyword spotting (KWS), with low CPU, memory, and latency requirements. The max-pooling loss training can be further guided…

Keyword spotting (KWS) enables speech-based user interaction and gradually becomes an indispensable component of smart devices. Recently, end-to-end (E2E) methods have become the most popular approach for on-device KWS tasks. However, there…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-01 Jie Wang , Menglong Xu , Jingyong Hou , Binbin Zhang , Xiao-Lei Zhang , Lei Xie , Fuping Pan

Query by String Keyword Spotting (KWS) is here considered as a key technology for indexing large collections of handwritten text images to allow fast textual access to the contents of these collections. Under this perspective, a…

Information Retrieval · Computer Science 2021-04-13 E. Vidal , A. H. Toselli , J. Puigcerver

Continual learning (CL) has emerged as a pivotal paradigm to enable large language models (LLMs) to dynamically adapt to evolving knowledge and sequential tasks while mitigating catastrophic forgetting-a critical limitation of the static…

Computation and Language · Computer Science 2026-03-16 Hongyang Chen , Zhongwu Sun , Hongfei Ye , Kunchi Li , Xuemin Lin

Keyword spotting (KWS) is a crucial function enabling the interaction with the many ubiquitous smart devices in our surroundings, either activating them through wake-word or directly as a human-computer interface. For many applications, KWS…

Detecting occurrences of keywords with keyword spotting (KWS) systems requires thresholding continuous detection scores. Selecting appropriate thresholds is a non-trivial task, typically relying on optimizing performance on a validation…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-23 Kevin Wilkinghoff , Alessia Cornaggia-Urrigshardt , Zheng-Hua Tan

Despite their great performance over the years, handcrafted speech features are not necessarily optimal for any particular speech application. Consequently, with greater or lesser success, optimal filterbank learning has been studied for…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-02 Iván López-Espejo , Zheng-Hua Tan , Jesper Jensen

We introduce Progressive Prompts - a simple and efficient approach for continual learning in language models. Our method allows forward transfer and resists catastrophic forgetting, without relying on data replay or a large number of…

Computation and Language · Computer Science 2023-01-31 Anastasia Razdaibiedina , Yuning Mao , Rui Hou , Madian Khabsa , Mike Lewis , Amjad Almahairi

The emergence of Artificial Intelligence (AI) driven Keyword Spotting (KWS) technologies has revolutionized human to machine interaction. Yet, the challenge of end-to-end energy efficiency, memory footprint and system complexity of current…

Audio and Speech Processing · Electrical Eng. & Systems 2021-01-28 Jie Lei , Tousif Rahman , Rishad Shafik , Adrian Wheeldon , Alex Yakovlev , Ole-Christoffer Granmo , Fahim Kawsar , Akhil Mathur

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

Existing progress in object keypoint estimation primarily benefits from the conventional supervised learning paradigm based on numerous data labeled with pre-defined keypoints. However, these well-trained models can hardly detect the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Mingfu Liang , Jiahuan Zhou , Xu Zou , Ying Wu