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Machine learning is driven by data, yet while their availability is constantly increasing, training data require laborious, time consuming and error-prone labelling or ground truth acquisition, which in some cases is very difficult or even…

计算机视觉与模式识别 · 计算机科学 2019-09-25 Vasileios Gkitsas , Antonis Karakottas , Nikolaos Zioulis , Dimitrios Zarpalas , Petros Daras

An unsupervised text-to-speech synthesis (TTS) system learns to generate speech waveforms corresponding to any written sentence in a language by observing: 1) a collection of untranscribed speech waveforms in that language; 2) a collection…

音频与语音处理 · 电气工程与系统科学 2022-08-17 Junrui Ni , Liming Wang , Heting Gao , Kaizhi Qian , Yang Zhang , Shiyu Chang , Mark Hasegawa-Johnson

Existing scene text recognition (STR) methods struggle to recognize challenging texts, especially for artistic and severely distorted characters. The limitation lies in the insufficient exploration of character morphologies, including the…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Yadong Qu , Yuxin Wang , Bangbang Zhou , Zixiao Wang , Hongtao Xie , Yongdong Zhang

The transcription quality of automatic speech recognition (ASR) systems degrades significantly when transcribing audios coming from unseen domains. We propose an unsupervised error correction method for unsupervised ASR domain adaption,…

声音 · 计算机科学 2022-09-27 Long Mai , Julie Carson-Berndsen

The challenges facing speech recognition systems, such as variations in pronunciations, adverse audio conditions, and the scarcity of labeled data, emphasize the necessity for a post-processing step that corrects recurring errors. Previous…

计算与语言 · 计算机科学 2023-10-18 Tomer Wullach , Shlomo E. Chazan

Although current image generation methods have reached impressive quality levels, they are still unable to produce plausible yet diverse images of handwritten words. On the contrary, when writing by hand, a great variability is observed…

计算机视觉与模式识别 · 计算机科学 2020-07-23 Lei Kang , Pau Riba , Yaxing Wang , Marçal Rusiñol , Alicia Fornés , Mauricio Villegas

Traditional methods in Chinese typography synthesis view characters as an assembly of radicals and strokes, but they rely on manual definition of the key points, which is still time-costing. Some recent work on computer vision proposes a…

计算机视觉与模式识别 · 计算机科学 2018-02-09 Hanfei Sun , Yiming Luo , Ziang Lu

Handwritten Numeral recognition plays a vital role in postal automation services especially in countries like India where multiple languages and scripts are used Discrete Hidden Markov Model (HMM) and hybrid of Neural Network (NN) and HMM…

神经与进化计算 · 计算机科学 2012-03-20 Anshuman Sharma

Handwriting Recognition enables a person to scribble something on a piece of paper and then convert it into text. If we look into the practical reality there are enumerable styles in which a character may be written. These styles can be…

计算机视觉与模式识别 · 计算机科学 2010-04-20 Rahul Kala , Harsh Vazirani , Anupam Shukla , Ritu Tiwari

This paper addresses text recognition for domains with limited manual annotations by a simple self-training strategy. Our approach should reduce human annotation effort when target domain data is plentiful, such as when transcribing a…

计算机视觉与模式识别 · 计算机科学 2022-01-26 Martin Kišš , Karel Beneš , Michal Hradiš

Traditional machine learning models for Handwritten Text Recognition (HTR) rely on supervised training, requiring extensive manual annotations, and often produce errors due to the separation between layout and text processing. In contrast,…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Giorgia Crosilla , Lukas Klic , Giovanni Colavizza

Handwritten text recognition has been widely studied in the last decades for its numerous applications. Nowadays, the state-of-the-art approach consists in a three-step process. The document is segmented into text lines, which are then…

计算机视觉与模式识别 · 计算机科学 2022-10-21 Denis Coquenet

State-of-the-art offline handwriting text recognition systems tend to use neural networks and therefore require a large amount of annotated data to be trained. In order to partially satisfy this requirement, we propose a system based on…

计算机视觉与模式识别 · 计算机科学 2020-11-12 Eloi Alonso , Bastien Moysset , Ronaldo Messina

Expressive speech synthesis, like audiobook synthesis, is still challenging for style representation learning and prediction. Deriving from reference audio or predicting style tags from text requires a huge amount of labeled data, which is…

声音 · 计算机科学 2022-06-28 Yihan Wu , Xi Wang , Shaofei Zhang , Lei He , Ruihua Song , Jian-Yun Nie

In recent years, deep learning-based methods have shown promising results in computer vision area. However, a common deep learning model requires a large amount of labeled data, which is labor-intensive to collect and label. What's more,…

计算机视觉与模式识别 · 计算机科学 2021-08-25 Shuhao Qiu , Chuang Zhu , Wenli Zhou

Acquisition of multilingual training data continues to be a challenge in word sense disambiguation (WSD). To address this problem, unsupervised approaches have been proposed to automatically generate sense annotations for training…

计算与语言 · 计算机科学 2021-09-21 Bradley Hauer , Grzegorz Kondrak , Yixing Luan , Arnob Mallik , Lili Mou

Adapting keyphrase generation models to new domains typically involves few-shot fine-tuning with in-domain labeled data. However, annotating documents with keyphrases is often prohibitively expensive and impractical, requiring expert…

计算与语言 · 计算机科学 2024-10-03 Florian Boudin , Akiko Aizawa

The paper presents a novel technique called "Structural Crossing-Over" to synthesize qualified data for training machine learning-based handwriting recognition. The proposed technique can provide a greater variety of patterns of training…

计算机视觉与模式识别 · 计算机科学 2014-12-19 Sirisak Visessenee , Sanparith Marukatat , Rachada Kongkachandra

An open research problem in automatic signature verification is the skilled forgery attacks. However, the skilled forgeries are very difficult to acquire for representation learning. To tackle this issue, this paper proposes to learn…

计算机视觉与模式识别 · 计算机科学 2019-11-15 Songxuan Lai , Lianwen Jin , Luojun Lin , Yecheng Zhu , Huiyun Mao

Domain mismatch between training and testing can lead to significant degradation in performance in many machine learning scenarios. Unfortunately, this is not a rare situation for automatic speech recognition deployments in real-world…

计算与语言 · 计算机科学 2017-09-25 Wei-Ning Hsu , Yu Zhang , James Glass