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Journal ArticleDOI

A fast learning algorithm for deep belief nets

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TLDR
A fast, greedy algorithm is derived that can learn deep, directed belief networks one layer at a time, provided the top two layers form an undirected associative memory.
Abstract
We show how to use "complementary priors" to eliminate the explaining-away effects that make inference difficult in densely connected belief nets that have many hidden layers. Using complementary priors, we derive a fast, greedy algorithm that can learn deep, directed belief networks one layer at a time, provided the top two layers form an undirected associative memory. The fast, greedy algorithm is used to initialize a slower learning procedure that fine-tunes the weights using a contrastive version of the wake-sleep algorithm. After fine-tuning, a network with three hidden layers forms a very good generative model of the joint distribution of handwritten digit images and their labels. This generative model gives better digit classification than the best discriminative learning algorithms. The low-dimensional manifolds on which the digits lie are modeled by long ravines in the free-energy landscape of the top-level associative memory, and it is easy to explore these ravines by using the directed connections to display what the associative memory has in mind.

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Change detection based on deep feature representation and mapping transformation for multi-spatial-resolution remote sensing images

TL;DR: This paper presents a novel multi-spatial-resolution change detection framework, which incorporates deep-architecture-based unsupervised feature learning and mapping-based feature change analysis, and tries to explore the inner relationships between them by building a mapping neural network.
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Intelligent fault diagnosis of rolling bearing using deep wavelet auto-encoder with extreme learning machine

TL;DR: A novel method called deep wavelet auto-encoder (DWAE) with extreme learning machine (ELM) is proposed for intelligent fault diagnosis of rolling bearing and the results confirm that the proposed method is superior to the traditional methods and standard deep learning methods.
Journal ArticleDOI

Deep Learning in Microscopy Image Analysis: A Survey

TL;DR: A snapshot of the fast-growing deep learning field for microscopy image analysis, which explains the architectures and the principles of convolutional neural networks, fully Convolutional networks, recurrent neural Networks, stacked autoencoders, and deep belief networks and their formulations or modelings for specific tasks on various microscopy images.
Journal ArticleDOI

Unsupervised Spectral–Spatial Feature Learning via Deep Residual Conv–Deconv Network for Hyperspectral Image Classification

TL;DR: A novel network architecture, fully Conv–Deconv network for unsupervised spectral–spatial feature learning of hyperspectral images, which is able to be trained in an end-to-end manner and an in-depth investigation of learned features is introduced.
Proceedings ArticleDOI

On deep learning-based channel decoding

TL;DR: In this paper, the authors revisited the idea of using deep neural networks for one-shot decoding of random and structured codes, such as polar codes, and showed that neural networks can learn a form of decoding algorithm, rather than only a simple classifier.
References
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Journal ArticleDOI

Gradient-based learning applied to document recognition

TL;DR: In this article, a graph transformer network (GTN) is proposed for handwritten character recognition, which can be used to synthesize a complex decision surface that can classify high-dimensional patterns, such as handwritten characters.
Book

Probabilistic Reasoning in Intelligent Systems: Networks of Plausible Inference

TL;DR: Probabilistic Reasoning in Intelligent Systems as mentioned in this paper is a complete and accessible account of the theoretical foundations and computational methods that underlie plausible reasoning under uncertainty, and provides a coherent explication of probability as a language for reasoning with partial belief.
Journal ArticleDOI

Shape matching and object recognition using shape contexts

TL;DR: This paper presents work on computing shape models that are computationally fast and invariant basic transformations like translation, scaling and rotation, and proposes shape detection using a feature called shape context, which is descriptive of the shape of the object.
Journal ArticleDOI

Training products of experts by minimizing contrastive divergence

TL;DR: A product of experts (PoE) is an interesting candidate for a perceptual system in which rapid inference is vital and generation is unnecessary because it is hard even to approximate the derivatives of the renormalization term in the combination rule.
Proceedings ArticleDOI

Best practices for convolutional neural networks applied to visual document analysis

TL;DR: A set of concrete bestpractices that document analysis researchers can use to get good results with neural networks, including a simple "do-it-yourself" implementation of convolution with a flexible architecture suitable for many visual document problems.
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