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Despite recent advances in automatic text recognition, the performance remains moderate when it comes to historical manuscripts. This is mainly because of the scarcity of available labelled data to train the data-hungry Handwritten Text…

计算机视觉与模式识别 · 计算机科学 2022-09-22 Giuseppe De Gregorio , Sanket Biswas , Mohamed Ali Souibgui , Asma Bensalah , Josep Lladós , Alicia Fornés , Angelo Marcelli

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…

音频与语音处理 · 电气工程与系统科学 2020-06-02 Iván López-Espejo , Zheng-Hua Tan , Jesper Jensen

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…

音频与语音处理 · 电气工程与系统科学 2026-01-23 Kevin Wilkinghoff , Alessia Cornaggia-Urrigshardt , Zheng-Hua Tan

Few-shot keyword spotting (KWS) aims to detect unknown keywords with limited training samples. A commonly used approach is the pre-training and fine-tuning framework. While effective in clean conditions, this approach struggles with mixed…

声音 · 计算机科学 2024-07-09 Junming Yuan , Ying Shi , LanTian Li , Dong Wang , Askar Hamdulla

There is a large collection of Handwritten English paper documents of Historical and Scientific importance. But paper documents are not recognized directly by computer. Hence the closest way of indexing these documents is by storing their…

计算机视觉与模式识别 · 计算机科学 2013-10-24 Sayantan Sarkar

Keyword spotting (KWS) plays a critical role in enabling speech-based user interactions on smart devices. Recent developments in the field of deep learning have led to wide adoption of convolutional neural networks (CNNs) in KWS systems due…

The goal of this work is to automatically determine whether and when a word of interest is spoken by a talking face, with or without the audio. We propose a zero-shot method suitable for in the wild videos. Our key contributions are: (1) a…

计算机视觉与模式识别 · 计算机科学 2020-09-07 Liliane Momeni , Triantafyllos Afouras , Themos Stafylakis , Samuel Albanie , Andrew Zisserman

Small-Footprint Keyword Spotting (SF-KWS) has gained popularity in today's landscape of smart voice-activated devices, smartphones, and Internet of Things (IoT) applications. This surge is attributed to the advancements in Deep Learning,…

音频与语音处理 · 电气工程与系统科学 2025-06-16 Soumen Garai , Suman Samui

Keyword spotting (KWS) refers to the task of identifying a set of predefined words in audio streams. With the advances seen recently with deep neural networks, it has become a popular technology to activate and control small devices, such…

音频与语音处理 · 电气工程与系统科学 2023-09-25 Heitor R. Guimarães , Arthur Pimentel , Anderson Avila , Tiago H. Falk

In this paper, we approach the problem of segmentation-free query-by-string word spotting for handwritten documents. In other words, we use methods inspired from computer vision and machine learning to search for words in large collections…

计算机视觉与模式识别 · 计算机科学 2017-08-18 Tomas Wilkinson , Jonas Lindström , Anders Brun

The goal of this work is to bring semantics into the tasks of text recognition and retrieval in natural images. Although text recognition and retrieval have received a lot of attention in recent years, previous works have focused on…

计算机视觉与模式识别 · 计算机科学 2015-09-22 Albert Gordo , Jon Almazan , Naila Murray , Florent Perronnin

As advancements in technologies like Internet of Things (IoT), Automatic Speech Recognition (ASR), Speaker Verification (SV), and Text-to-Speech (TTS) lead to increased usage of intelligent voice assistants, the demand for privacy and…

音频与语音处理 · 电气工程与系统科学 2026-03-20 Jianan Pan , Kejie Huang

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…

音频与语音处理 · 电气工程与系统科学 2023-09-06 Seunghan Yang , Byeonggeun Kim , Kyuhong Shim , Simyung Chang

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…

音频与语音处理 · 电气工程与系统科学 2026-05-22 Zhiqi Ai , Han Cheng , Shiyi Mu , Xinnuo Li , Yongjin Zhou , Shugong Xu

Keyword spotting (KWS) on mobile devices generally requires a small memory footprint. However, most current models still maintain a large number of parameters in order to ensure good performance. To solve this problem, this paper proposes a…

声音 · 计算机科学 2021-09-02 Shenghua Hu , Jing Wang , Yujun Wang , Lidong Yang , Wenjing Yang

Keyword Spotting (KWS) systems with small footprint models deployed on edge devices face significant accuracy and robustness challenges due to domain shifts caused by varying noise and recording conditions. To address this, we propose a…

声音 · 计算机科学 2026-01-23 Prakash Dhungana , Sayed Ahmad Salehi

Learning to recognize new keywords with just a few examples is essential for personalizing keyword spotting (KWS) models to a user's choice of keywords. However, modern KWS models are typically trained on large datasets and restricted to a…

音频与语音处理 · 电气工程与系统科学 2021-06-07 Abhijeet Awasthi , Kevin Kilgour , Hassan Rom

Open-vocabulary keyword spotting (KWS) in continuous speech streams holds significant practical value across a wide range of real-world applications. While increasing attention has been paid to the role of different modalities in KWS, their…

声音 · 计算机科学 2025-12-18 Kewei Li , Yinan Zhong , Xiaotao Liang , Tianchi Dai , Shaofei Xue

Keyword spotting (KWS) aims to discriminate a specific wake-up word from other signals precisely and efficiently for different users. Recent works utilize various deep networks to train KWS models with all users' speech data centralized…

机器学习 · 计算机科学 2022-06-20 Xin-Chun Li , Jin-Lin Tang , Shaoming Song , Bingshuai Li , Yinchuan Li , Yunfeng Shao , Le Gan , De-Chuan Zhan

A personalized KeyWord Spotting (KWS) pipeline typically requires the training of a Deep Learning model on a large set of user-defined speech utterances, preventing fast customization directly applied on-device. To fill this gap, this paper…

机器学习 · 计算机科学 2023-06-06 Manuele Rusci , Tinne Tuytelaars