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Proceedings ArticleDOI

Connectionist temporal classification: labelling unsegmented sequence data with recurrent neural networks

TLDR
This paper presents a novel method for training RNNs to label unsegmented sequences directly, thereby solving both problems of sequence learning and post-processing.
Abstract
Many real-world sequence learning tasks require the prediction of sequences of labels from noisy, unsegmented input data. In speech recognition, for example, an acoustic signal is transcribed into words or sub-word units. Recurrent neural networks (RNNs) are powerful sequence learners that would seem well suited to such tasks. However, because they require pre-segmented training data, and post-processing to transform their outputs into label sequences, their applicability has so far been limited. This paper presents a novel method for training RNNs to label unsegmented sequences directly, thereby solving both problems. An experiment on the TIMIT speech corpus demonstrates its advantages over both a baseline HMM and a hybrid HMM-RNN.

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Non-Autoregressive Dialog State Tracking

TL;DR: A novel framework of Non-Autoregressive Dialog State Tracking (NADST) which can factor in potential dependencies among domains and slots to optimize the models towards better prediction of dialogue states as a complete set rather than separate slots is proposed.
Proceedings ArticleDOI

Preparatory KWS Experiments for Large-Scale Indexing of a Vast Medieval Manuscript Collection in the HIMANIS Project

TL;DR: Results confirm the viability of the chosen approach for the large-scale indexing aimed at "Chancery" and show the ability of the proposed modeling and training approaches to properly deal with the abbreviation difficulties mentioned.
Proceedings ArticleDOI

Boosting Handwriting Text Recognition in Small Databases with Transfer Learning

TL;DR: In this article, transfer learning is used to re-train the whole CRNN parameters initialized to the values obtained after the training of the CRNN from a larger database. But the authors focus on which layers of the network could not be re-trained.
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Convolutional Character Networks

TL;DR: CharNet as discussed by the authors directly outputs bounding boxes of words and characters, with corresponding character labels, and uses character as basic element, allowing them to overcome the main difficulty of existing approaches that attempted to optimize text detection jointly with a RNN-based recognition branch.
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SF-Net: Structured Feature Network for Continuous Sign Language Recognition.

TL;DR: The proposed Structured Feature Network (SF-Net) extracts features in a structured manner and gradually encodes information at the frame level, the gloss level and the sentence level into the feature representation.
References
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Journal ArticleDOI

Long short-term memory

TL;DR: A novel, efficient, gradient based method called long short-term memory (LSTM) is introduced, which can learn to bridge minimal time lags in excess of 1000 discrete-time steps by enforcing constant error flow through constant error carousels within special units.
Journal ArticleDOI

A tutorial on hidden Markov models and selected applications in speech recognition

TL;DR: In this paper, the authors provide an overview of the basic theory of hidden Markov models (HMMs) as originated by L.E. Baum and T. Petrie (1966) and give practical details on methods of implementation of the theory along with a description of selected applications of HMMs to distinct problems in speech recognition.
Book

Neural networks for pattern recognition

TL;DR: This is the first comprehensive treatment of feed-forward neural networks from the perspective of statistical pattern recognition, and is designed as a text, with over 100 exercises, to benefit anyone involved in the fields of neural computation and pattern recognition.
Proceedings Article

Conditional Random Fields: Probabilistic Models for Segmenting and Labeling Sequence Data

TL;DR: This work presents iterative parameter estimation algorithms for conditional random fields and compares the performance of the resulting models to HMMs and MEMMs on synthetic and natural-language data.
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