Tag: Artificial Intelligence

AI Machine Learning & Data Science Research

DeepMind’s Fictitious Co-Play Trains RL Agents to Collaborate with Novel Humans Without Using Human Data

A DeepMind research team explores the problem of how to train agents to collaborate well with novel human partners without using human data and presents Fictitious Co-Play (FCP), a surprisingly simple approach designed to address this challenge.

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Mention Memory: Incorporating Factual Knowledge From Various Sources Into Transformers Without Supervision

A research team from the University of Southern California and Google proposes TOME, a “mention memory” approach to factual knowledge extraction for NLU tasks. A transformer model with attention over a semi-parametric representation of the entire Wikipedia text corpus, TOME can extract information without supervision and achieves strong performance on multiple open-domain question answering benchmarks.

AI Machine Learning & Data Science Research

NVIDIA’s StyleGAN3 Is Fully Equivariant to Translation and Rotation, Improving GAN-Based Animation Generation

A NVIDIA and Aalto University research team presents StyleGAN3, a novel generative adversarial network (GAN) architecture where the exact sub-pixel position of each feature is exclusively inherited from the underlying coarse features, enabling a more natural transformation hierarchy and advancing GAN-based animation generation.

AI Computer Vision & Graphics Machine Learning & Data Science Research

Are Patches All You Need? New Study Proposes Patches Are Behind Vision Transformers’ Strong Performance

A research team proposes ConvMixer, an extremely simple model designed to support the argument that the impressive performance of vision transformers (ViTs) is mainly attributable to their use of patches as the input representation. The study shows that ConvMixer can outperform ViTs, MLP-Mixers and classical vision models.

AI Computer Vision & Graphics Machine Learning & Data Science Research

Apple Study Reveals the Learned Visual Representation Similarities and Dissimilarities Between Self-Supervised and Supervised Methods

An Apple research team performs a comparative analysis on a contrastive self-supervised learning (SSL) algorithm (SimCLR) and a supervised learning (SL) approach for simple image data in a common architecture, shedding light on the similarities and dissimilarities in their learned visual representation patterns.

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NYU & UNC Reveal How Transformers’ Learned Representations Change After Fine-Tuning

In the paper Fine-Tuned Transformers Show Clusters of Similar Representations Across Layers, a research team from New York University and the University of North Carolina at Chapel Hill uses centered kernel alignment (CKA) to measure the similarity of representations across layers and explore how fine-tuning changes transformers’ learned representations.

AI Machine Learning & Data Science Research

DeepMind & IDSIA Introduce Symmetries to Black-Box MetaRL to Improve Its Generalization Ability

In the paper Introducing Symmetries to Black Box Meta Reinforcement Learning, a research team from DeepMind and The Swiss AI Lab IDSIA explores the role of symmetries in meta generalization and shows that introducing more symmetries to black-box meta-learners can improve their ability to generalize to unseen action and observation spaces, tasks, and environments.

AI Machine Learning & Data Science Research

CMU, Google & UC Berkeley Propose Robust Predictable Control Policies for RL Agents

A research team from Carnegie Mellon University, Google Brain and UC Berkeley proposes a robust predictable control (RPC) method for learning reinforcement learning policies that use fewer bits of information. This simple and theoretically-justified algorithm achieves much tighter compression, is more robust, and generalizes better than prior methods, achieving up to 5× higher rewards than a standard information bottleneck.

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MIT’s Automatic Data-Driven Media Bias Measurement Method Achieves Human-Level Results

MIT researchers present an automated, objective and transparent data-driven method for measuring media bias. The study analyses roughly a million articles from about a hundred newspapers for bias on various news topics, maps the newspapers into a two-dimensional media bias landscape, and shows that the data-driven results agree well with human-judgement classifications.

AI Machine Learning & Data Science Research

NVIDIA’s Isaac Gym: End-to-End GPU Accelerated Physics Simulation Expedites Robot Learning by 2-3 Orders of Magnitude

A Nvidia research team presents Isaac Gym — a high-performance robotics simulation platform that runs an end-to-end GPU accelerated training pipeline. Compared to conventional RL training methods that use a CPU-based simulator and GPU for neural networks, Isaac Gym achieves training speedups of 2-3 orders of magnitude on continuous control tasks.