Goto

Collaborating Authors

 Deep Learning


Announcing RStudio on Amazon SageMaker

#artificialintelligence

As more organizations migrate their data science work to the cloud, they naturally want to bring along their favorite data science tools, including RStudio, R, and Python. While RStudio provides many different ways to support an organization's cloud strategyOpens a new window, we've heard from many customers who also use Amazon SageMaker. They wanted an easier way to combine RStudio's professional products with SageMaker's rich machine learning and deep learning capabilities, and to incorporate RStudio into their data science infrastructure on SageMaker. Based on this feedback, we are excited to announce RStudio on Amazon SageMaker, developed in collaboration with the SageMaker team. Amazon SageMakerOpens a new window helps data scientists and developers to prepare, build, train, and deploy high-quality machine learning models quickly by bringing together a broad set of capabilities purpose-built for machine learning.


@Radiology_AI

#artificialintelligence

To use deep learning to improve the image quality of subsampled images (number of acquisitions 1 [NOA1]) to reduce whole-body diffusion-weighted MRI (WBDWI) acquisition times. Both retrospective and prospective patient groups were used to develop a deep learningโ€“based denoising image filter (DNIF) model. For initial model training and validation, 17 patients with metastatic prostate cancer with acquired WBDWI NOA1 and NOA9 images (acquisition period, 2015โ€“2017) were retrospectively included. An additional 22 prospective patients with advanced prostate cancer, myeloma, and advanced breast cancer were used for model testing (2019), and the radiologic quality of DNIF-processed NOA1 (NOA1-DNIF) images were compared with NOA1 images and clinical NOA16 images by using a three-point Likert scale (good, average, or poor; statistical significance was calculated by using a Wilcoxon signed ranked test). The model was also retrained and tested in 28 patients with malignant pleural mesothelioma (MPM) who underwent lung MRI (2015โ€“2017) to demonstrate feasibility in other body regions. The model visually improved the quality of NOA1 images in all test patients, with the majority of NOA1-DNIF and NOA16 images being graded as either "average" or "good" across all image-quality criteria. From validation data, the mean apparent diffusion coefficient (ADC) values within NOA1-DNIF images of bone disease deviated from those within NOA9 images by an average of 1.9% (range, 1.1%โ€“2.6%).


This Spooky, Bizarre Haunted House Was Generated by an AI

#artificialintelligence

AI is slowly getting more creative, and as it does it's raising questions about the nature of creativity itself, who owns works of art made by computers, and whether conscious machines will make art humans can understand. In the spooky spirit of Halloween, one engineer used an AI to produce a very specific, seasonal kind of "art": a haunted house. It's not a brick-and-mortar house you can walk through, unfortunately; like so many things these days, it's virtual, and was created by research scientist and writer Janelle Shane. Shane runs a machine learning humor blog called AI Weirdness where she writes about the "sometimes hilarious, sometimes unsettling ways that machine learning algorithms get things wrong." For the virtual haunted house, Shane used CLIP, a neural network built by OpenAI, and VQGAN, a neural network architecture that combines convolutional neural networks (which are typically used for images) with transformers (which are typically used for language).


DeepMind Study Resolves Delusions in Sequence Models for Interaction and Control

#artificialintelligence

Large-scale language models such as transformers have become the de facto standard for a wide range of natural language processing (NLP) tasks. Despite their apparent linguistic savvy, such sequence models are known to lack a real understanding of the cause and effect of their actions, which can lead to false decisions due to auto-suggestive delusions. In the new paper Shaking the Foundations: Delusions in Sequence Models for Interaction and Control, a DeepMind research team explores the origin of these mismatches and addresses the problem by treating actions as causal interventions. The team shows that a system can learn to condition or intervene on data by training with the use of factual and counterfactual error signals respectively. Sequence models are updated based on collected data, and these updates will differ depending on whether the data was generated by the model itself (i.e.


Why AI is Struggling to Detect Hate Speech

#artificialintelligence

All major social media networks use AI algorithms to moderate online content. But while AI shows promise in detecting some type of content, it is hard pressed when it comes to spotting hate speech. A recent study by scientists at University of Washington, Carnegie Mellon University, and Allen Institute for Artificial Intelligence, has found that the leading AI systems for detecting hate speech are deeply biased against African Americans. This includes Google Perspective, an AI tool for moderating online conversations. The study and the unending struggles of tech companies to automate hate speech detection highlight the limits of current AI technologies in understanding the context of human language. Advances in deep learning have helped automate complicated tasks such as image classification and object detection.


TensorFlow vs PyTorch

#artificialintelligence

Deep learning, one of the most fascinating subjects in computer science, has spawned a slew of machine learning frameworks and libraries, sparking community discussions about platforms like PyTorch vs TensorFlow. Currently, the most prominent frameworks are PyTorch and TensorFlow, which were created by Facebook and Google, respectively. Both of these frameworks are open-source libraries for machine learning that are widely utilised in commercial and academic research. They're also distinct enough that you'll want to think about the framework you'll use before getting started. Why is there a debate between PyTorch and TensorFlow in the machine learning community?


An Introduction to Recurrent Neural Network

#artificialintelligence

Have you ever wondered how the predictive text algorithm works? How well does that speech recognition know our voice? In the case of image segregation, convolutional neural networks were changing times after artificial intelligence, in these types of problems using Recurrent Neural Networks (RNN). These Neural Networks are very powerful and useful especially in so-called Natural Language Processing (NLP). One may wonder what makes it so special. Well, the networks we have explored so far, Standard Neural Networks and Convolutional Neural Networks, accept a fixed size vector as input and produce a fixed size vector as output. The structure of Neural Recurrent Networks is similar to the structure of artificial intelligence Neural Networks, but with one twist. They broadcast network output after installation.


Artificial Intelligence As a Service

#artificialintelligence

Almost all companies today use at least one type of service offering to focus on their core business and outsource other needs to outside experts and vendors. Now, the same service approach is being applied to a new area: AIaaS. The number of terms and products is constantly growing, and in this article, we'll have a look at what AIaaS stands for. AIaaS invites individuals and companies to experiment with AI for a variety of purposes without a large upfront investment. Everything as a service refers to any software that can be invoked over the network as it is cloud-based.


What is the definition of Artificial Intelligence?

#artificialintelligence

Artificial Intelligence (AI) is the simulation of human intelligence in computers, and they are trained to think and act in the same way as humans do. It can also refer to any computer that demonstrates human-like characteristics such as problem-solving and learning. The ability of Artificial Intelligence to reason and act and achieve a specific goal is the ideal trait. Machine learning is a subset of Artificial Intelligence that relates to the concept of computer systems learning and adapting to new data without the need for human intervention. Deep learning algorithms enable this self-learning by absorbing large amounts of unstructured data such as text, images, and video.


Why AI Lags Behind the Human Brain in Computational Power - Facts So Romantic

Nautilus

Recent advances have made deep neural networks the leading paradigm of artificial intelligence. One of the great things about deep neural networks is that, given a large number of examples, they can learn how to act. This means we can get software to learn to do things that even their programmers don't know how to do. The more complicated the task is, the more powerful the neural net has to be. Although inspired by brain architecture, research on neural nets usually doesn't have anything to do with actual neurons.