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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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Citations
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Journal ArticleDOI

Dynamically pre-trained deep recurrent neural networks using environmental monitoring data for predicting PM2.5

TL;DR: A deep recurrent neural network (DRNN) that is enhanced with a novel pre-training method using auto-encoder especially designed for time series prediction is proposed that improves the accuracy of PM2.5 concentration level predictions that are being reported in Japan.
Journal ArticleDOI

DeepFish: Accurate underwater live fish recognition with a deep architecture

TL;DR: A framework to recognize fish from videos captured by underwater cameras deployed in the ocean observation network is proposed, using a deep architecture to extract features of the foreground fish images and a linear SVM classifier for classification.
Proceedings ArticleDOI

Picture: A probabilistic programming language for scene perception

TL;DR: Picture is presented, a probabilistic programming language for scene understanding that allows researchers to express complex generative vision models, while automatically solving them using fast general-purpose inference machinery.

Learning-Based Methods for Comparing Sequences, with Applications to Audio-to-MIDI Alignment and Matching

Colin Raffel
TL;DR: Learning-Based Methods for Comparing Sequences, with Applications to Audio-to-MIDI Alignment and Matching
Journal ArticleDOI

An analysis of Convolutional Long Short-Term Memory Recurrent Neural Networks for gesture recognition

TL;DR: This research shows that CNNLSTM learns the temporal evolution of the gestures classifying correctly their meaningful part, known as Kendons stroke phase, and shows that the network learns to detect the most intense body motion.
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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