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Showing 9651–9700 of 9720 headlines.
OpenAI News
OpenAI has released highly optimized GPU kernels designed for neural networks with block-sparse weights. Depending on the sparsity level, these kernels can run orders of magnitude faster than cuBLAS or cuSPARSE. They have already achieved state-of-the-art results in text sentiment analysis as well as image and text generation.
OpenAI News
OpenAI News
OpenAI News
Researchers have developed a hierarchical reinforcement learning algorithm that discovers high-level actions to solve complex tasks spanning thousands of timesteps. In navigation tests, the algorithm uncovered walking and crawling actions across various directions. These learned capabilities allowed the agent to master new navigation tasks quickly.
OpenAI News
New robotics techniques allow robot controllers trained entirely in simulation to adapt to unexpected environmental changes when deployed on physical hardware. By creating closed-loop systems instead of earlier open-loop designs, the robots can react dynamically while completing simple tasks.
OpenAI News
OpenAI News
OpenAI News
OpenAI News
In a simulated robot wrestling environment, a meta-learning agent demonstrated that it could quickly defeat a stronger non-meta-learning opponent. Researchers also showed that the meta-learning agent is capable of adapting to physical malfunctions.
OpenAI News
Research shows that competitive self-play enables simulated AIs to discover physical skills such as tackling, kicking, ducking, and catching without explicit environment design. Because self-play naturally maintains an appropriate difficulty curve, OpenAI expects it to become a foundational component of future advanced AI systems.
OpenAI News
OpenAI News
OpenAI has introduced Learning with Opponent-Learning Awareness (LOLA), an algorithm that accounts for the learning processes of other agents. In the iterated prisoner's dilemma, LOLA successfully discovered self-interested yet collaborative strategies like tit-for-tat, marking progress toward systems that model other minds.
OpenAI News
OpenAI News
OpenAI has released two new reinforcement learning implementations, A2C and ACKTR, as part of OpenAI Baselines. A2C provides a synchronous, deterministic alternative to A3C that matches its performance. ACKTR offers superior sample efficiency compared to TRPO and A2C while requiring only slightly more computation per update than A2C.
OpenAI News
OpenAI's Dota 2 project demonstrated that self-play paired with sufficient compute can elevate machine learning systems from sub-human to superhuman performance. Within a month, the system advanced from matching high-ranked players to defeating top professionals. Unlike traditional supervised learning that is limited by static datasets, self-play automatically generates increasingly high-quality training data as the agent improves.
OpenAI News
OpenAI has developed a bot capable of defeating the world's top professional players in 1v1 Dota 2 matches under tournament rules. The system learned the game entirely from scratch through self-play, avoiding the use of imitation learning or tree search. The project marks a step forward in creating AI that can achieve clear objectives within complex, human-involved environments.
OpenAI News
OpenAI has open-sourced RL-Teacher, an interface that trains AI systems using periodic human feedback instead of manually crafted reward functions. Designed to advance AI safety, the method is especially useful for reinforcement learning tasks where rewards are difficult to specify directly.
OpenAI News
OpenAI researchers found that introducing adaptive noise to the parameters of reinforcement learning algorithms regularly improves performance. The exploration technique is easy to implement and rarely degrades results, making it widely applicable.
OpenAI News
OpenAI has released Proximal Policy Optimization (PPO), a reinforcement learning algorithm that matches or exceeds the performance of state-of-the-art approaches. Due to its ease of implementation and tuning, PPO has become the default reinforcement learning method used across OpenAI.
OpenAI News
Researchers have generated adversarial images that consistently fool neural network classifiers across different scales and viewing angles. These findings challenge recent assertions that self-driving cars would be naturally resilient to adversarial attacks due to their multi-angle and multi-perspective vision systems.
OpenAI News
OpenAI News
OpenAI News
OpenAI has open-sourced a high-performance Python library designed for robotic simulation using the MuJoCo engine. The library was developed over the course of a year of robotics research.
OpenAI News
To advance AI safety and eliminate the risks of poorly defined goal functions, OpenAI has collaborated with DeepMind's safety team. Together, they developed an algorithm capable of inferring human intent simply by receiving feedback on which of two proposed behaviors is preferable.
OpenAI News
OpenAI highlights multiagent competitive environments as vital stepping stones toward achieving artificial general intelligence. These environments provide an intrinsic curriculum based on opponent skill and lack a stable equilibrium, constantly driving agents to become smarter.
OpenAI News
OpenAI News
OpenAI has announced the open-source release of OpenAI Baselines, an internal initiative to reproduce reinforcement learning algorithms that match published performance benchmarks. The rollout begins with Deep Q-Networks (DQN) and three of its variants, with additional algorithms planned for release in the coming months.
OpenAI News
OpenAI has developed a robotic system capable of learning a new task after observing it just once. The system was trained entirely within a simulation before being deployed onto a physical robot.
OpenAI News
OpenAI has released Roboschool, an open-source software platform for robot simulation. The tool is integrated directly with OpenAI Gym.
OpenAI News
OpenAI News
OpenAI News
OpenAI has built an unsupervised system that develops an effective representation of sentiment. Notably, the model achieved this despite only being trained to predict the next character in Amazon review texts.
OpenAI News
OpenAI has developed an AI system capable of detecting Spam in the physical world. The system was trained entirely in a simulated environment before being deployed on a physical robot.
OpenAI News
OpenAI researchers have discovered that evolution strategies, a decades-old optimization technique, rival standard reinforcement learning methods on benchmarks such as Atari and MuJoCo. Additionally, the approach overcomes many of the practical inconveniences associated with standard reinforcement learning.
OpenAI News
OpenAI News
OpenAI has announced its support for the launch of Distill. Distill is a new journal dedicated to promoting clear and effective communication of machine learning research, covering both novel and existing results.
OpenAI News
OpenAI has published research exploring multi-agent systems. The work outlines how artificial agents are able to develop their own language to communicate.
OpenAI News
OpenAI News
OpenAI News
OpenAI News
OpenAI is examining adversarial examples, which are inputs intentionally crafted by attackers to deceive machine learning models like optical illusions. The post explores how these adversarial inputs function across various mediums and highlights the challenges of securing AI systems against them.
OpenAI News
OpenAI News
OpenAI announced that its team has grown to 45 people. The organization continues to advance AI capabilities through new software systems, novel research, and robotic deployments.
OpenAI News
OpenAI News
OpenAI examines how reinforcement learning algorithms can fail in counterintuitive ways. The post specifically focuses on the failure mode that occurs when a reward function is misspecified.
OpenAI News
OpenAI has released Universe, a software platform designed to train and evaluate an AI's general intelligence. The platform enables systems to learn across a broad spectrum of real-world games, websites, and applications.
OpenAI News
OpenAI News
OpenAI has announced a partnership with Microsoft. Under the collaboration, OpenAI will begin running most of its large-scale experiments on the Azure platform.
OpenAI News
OpenAI News