Deep Learning
Convolutional Neural Networks: The Biologically-Inspired Model Codementor
Since then, this competition has become the benchmark arena where state-of-the-art computer vision models are introduced. In particular, there have been many competing models using deep Convolutional Neural Nets as their backbone architecture. The most popular ones that achieved excellent results in the ImageNet competition include: ZFNet (2013), GoogLeNet (2014), VGGNet (2014), ResNet (2015), DenseNet (2016), etc. These architectures were getting deeper and deeper year by year.
Startup develops AI that can detect machine failure just by listening to sounds
Listen to your vehicle - this is an advice that all car and motorcycle owners are given when they're getting to know more about the vehicle. Now, a new AI service developed by 3Dsignals, an Israel based start-up is doing just that. The AI system can detect an impending failure in cars or other machines, just by listening to the sound. The system depends on deep learning technique to identify the noise patterns of a car. As per a report by IEEE spectrum, 3Dsignals promises to reduce machinery downtime by 40% and improve efficiency.
Longitudinal detection of radiological abnormalities with time-modulated LSTM
Santeramo, Ruggiero, Withey, Samuel, Montana, Giovanni
Convolutional neural networks (CNNs) have been successfully employed in recent years for the detection of radiological abnormalities in medical images such as plain x-rays. To date, most studies use CNNs on individual examinations in isolation and discard previously available clinical information. In this study we set out to explore whether Long-Short-Term-Memory networks (LSTMs) can be used to improve classification performance when modelling the entire sequence of radiographs that may be available for a given patient, including their reports. A limitation of traditional LSTMs, though, is that they implicitly assume equally-spaced observations, whereas the radiological exams are event-based, and therefore irregularly sampled. Using both a simulated dataset and a large-scale chest x-ray dataset, we demonstrate that a simple modification of the LSTM architecture, which explicitly takes into account the time lag between consecutive observations, can boost classification performance. Our empirical results demonstrate improved detection of commonly reported abnormalities on chest x-rays such as cardiomegaly, consolidation, pleural effusion and hiatus hernia.
Uncertainty and Interpretability in Convolutional Neural Networks for Semantic Segmentation of Colorectal Polyps
Wickstrøm, Kristoffer, Kampffmeyer, Michael, Jenssen, Robert
Convolutional Neural Networks (CNNs) are propelling advances in a range of different computer vision tasks such as object detection and object segmentation. Their success has motivated research in applications of such models for medical image analysis. If CNN-based models are to be helpful in a medical context, they need to be precise, interpretable, and uncertainty in predictions must be well understood. In this paper, we develop and evaluate recent advances in uncertainty estimation and model interpretability in the context of semantic segmentation of polyps from colonoscopy images. We evaluate and enhance several architectures of Fully Convolutional Networks (FCNs) for semantic segmentation of colorectal polyps and provide a comparison between these models. Our highest performing model achieves a 76.06\% mean IOU accuracy on the EndoScene dataset, a considerable improvement over the previous state-of-the-art.
Zap: Making Predictions Based on Online User Behavior
Chervonyi, Yuri, Harabor, Dragos, Zhang, Brian, Sacks, Josh
This paper introduces Zap, a generic machine learning pipeline for making predictions based on online user behavior. Zap combines well known techniques for processing sequential data with more obscure techniques such as Bloom filters, bucketing, and model calibration into an end-to-end solution. The pipeline creates website- and task-specific models without knowing anything about the structure of the website. It is designed to minimize the amount of website-specific code, which is realized by factoring all website-specific logic into example generators. New example generators can typically be written up in a few lines of code.
Explanations for Temporal Recommendations
Bharadhwaj, Homanga, Joshi, Shruti
Recommendation systems are an integral part of Artificial Intelligence (AI) and have become increasingly important in the growing age of commercialization in AI. Deep learning (DL) techniques for recommendation systems (RS) provide powerful latent-feature models for effective recommendation but suffer from the major drawback of being non-interpretable. In this paper we describe a framework for explainable temporal recommendations in a DL model. We consider an LSTM based Recurrent Neural Network (RNN) architecture for recommendation and a neighbourhood-based scheme for generating explanations in the model. We demonstrate the effectiveness of our approach through experiments on the Netflix dataset by jointly optimizing for both prediction accuracy and explainability.
What is reinforcement learning? The complete guide deepsense.ai
With an estimated market size of 7.35 billion US dollars, artificial intelligence is growing by leaps and bounds. McKinsey predicts that AI techniques (including deep learning and reinforcement learning) have the potential to create between $3.5T and $5.8T in value annually across nine business functions in 19 industries. Although machine learning is seen as a monolith, this cutting-edge technology is diversified, with various sub-types including machine learning, deep learning, and the state-of-art technology of deep reinforcement learning. Reinforcement learning is the training of machine learning models to make a sequence of decisions. The agent learns to achieve a goal in an uncertain, potentially complex environment.
Best Machine Learning Tools: Experts' Top Picks
The best trained soldiers can't fulfill their mission empty-handed. Data scientists have their own weapons -- machine learning (ML) software. There is already a cornucopia of articles listing reliable machine learning tools with in-depth descriptions of their functionality. Our goal, however, was to get the feedback of industry experts. And that's why we interviewed data science practitioners -- gurus, really --regarding the useful tools they choose for theirprojects. The specialists we contacted have various fields of expertise and are working in such companies as Facebook and Samsung. Some of them represent AI startups (Objection Co, NEAR.AI, and Respeecher); some teach at universities (Kharkiv National University of Radioelectronics).
PLASTER: 7 Key Ways to Measure Deep Learning Performance NVIDIA Blog
But when it comes to deep learning and artificial intelligence, how do we capture the tangible standards that need to be met for an AI-based service to be successful? This acronym, introduced by NVIDIA CEO Jensen Huang at the GPU Technology Conference earlier this year, describes a framework that addresses the seven major challenges for delivering AI-based servers: Programmability, Latency, Accuracy, Size of Model, Throughput, Energy Efficiency and Rate of Learning. NVIDIA introduced this framework to help customers overcome these important challenges, given the complexity of deploying deep learning solutions and the rapidly moving pace of the industry. "Hyperscale data centers are the most complicated computers the world has ever made," Huang said. They serve hundreds of millions of people making billions of queries, and represent billions of dollars of investment.
DeepMind AI takes IQ tests to probe its ability for abstract thought
Will artificial intelligences ever be able to match humans in abstract thought, or are they just very fancy number crunchers? Researchers at Google DeepMind are trying to find out by challenging AIs to solve abstract reasoning puzzles similar to those found in IQ tests. If you have ever taken an IQ test, you'll know that one kind of question involves looking at sets of abstract shapes and choosing which should come next in a given the sequence. These puzzles are known as Raven's progressive …