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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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On Generalization Bounds of a Family of Recurrent Neural Networks.

TL;DR: This work studies the generalization properties of vanilla RNNs as well as their variants, including Minimal Gated Unit (MGU), Long Short Term Memory (LSTM), and Convolutional (Conv) Rnns, and establishes refined generalization bounds with additional norm assumptions.
Proceedings ArticleDOI

MASR: A Modular Accelerator for Sparse RNNs

TL;DR: MASR as mentioned in this paper accelerates bidirectional RNNs for on-chip ASR by exploiting sparsity in both dynamic activations and static weights, which enables designs that efficiently scale from resource-constrained low-power IoT applications to large-scale, highly parallel datacenter deployments.
Journal ArticleDOI

Long short-term memory recurrent neural network-based acoustic model using connectionist temporal classification on a large-scale training corpus

TL;DR: A LSTM RNN-based acoustic model using CTC is trained on a large-scale training corpus and its performance is evaluated and is similar to a performance of the acoustic model based on the hybrid method.
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Iris tissue recognition based on GLDM feature extraction and hybrid MLPNN-ICA classifier

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Fooling OCR Systems with Adversarial Text Images.

TL;DR: It is demonstrated that state-of-the-art optical character recognition (OCR) based on deep learning is vulnerable to adversarial images.
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.
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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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