Industry
Australia's AI boom may revive productivity, CBA says
Australia's AI boom may revive productivity, CBA says Cabinets housing servers inside a data hall at a NextDC data center in Sydney. The company partnered with OpenAI last December to build a large-scale computing cluster in Sydney. Australia has become the world's third-largest artificial intelligence investment destination behind the U.S. and China, a result that's set to spur productivity in an economy currently struggling with a low potential growth rate and high inflation, Commonwealth Bank of Australia says. CBA's updated estimates suggest that Australia's data center pipeline is closer to 6 gigawatt, or 150 billion Australian dollars ($105 billion), implying installed capacity could more than triple over the period to 2030, according to a research note released Monday by economists led by Luke Yeaman. Shares in Australian data centers jumped following the report, with Goodman Group rising as much as 6.9%, the most since Dec. 23.
Don't Generate Me: Training Differentially Private Generative Models with Sinkhorn Divergence
Although machine learning models trained on massive data have led to breakthroughs in several areas, their deployment in privacy-sensitive domains remains limited due to restricted access to data. Generative models trained with privacy constraints on private data can sidestep this challenge, providing indirect access to private data instead. We propose DP-Sinkhorn, a novel optimal transport-based generative method for learning data distributions from private data with differential privacy. DP-Sinkhorn minimizes the Sinkhorn divergence, a computationally efficient approximation to the exact optimal transport distance, between the model and data in a differentially private manner and uses a novel technique for controlling the bias-variance trade-off of gradient estimates. Unlike existing approaches for training differentially private generative models, which are mostly based on generative adversarial networks, we do not rely on adversarial objectives, which are notoriously difficult to optimize, especially in the presence of noise imposed by privacy constraints. Hence, DP-Sinkhorn is easy to train and deploy. Experimentally, we improve upon the state-of-the-art on multiple image modeling benchmarks and show differentially private synthesis of informative RGB images.