This letter proposes a model-free safe RL algorithm that achieves near-zero constraint violations with high rewards. Our key idea is to jointly learn a policy and a neural barrier certificate under ...

A woman is giving her neighbors in Boston a chance to connect with others through a "not mail" box outside of her home.

Some of the approaches to doors are lovely – the gate, if there is one, opens easily, the path to the door is not overgrown ...

Think overhead-projector magic, shrunk to kid size: an IKEA LÄTT table, an LED strip, and a sheet of acrylic. Sprinkle sand ...

President Donald Trump on Monday set a 25% tax on goods imported from Japan and South Korea, as well as new tariff rates on a ...

Wall Street is coming off a holiday-shortened week during which the S&P 500 and Nasdaq Composite posted fresh all-time highs.

With the rapid advancement of free-to-play games featuring in-game payments, the loot box sales model challenges traditional fixed-price purchases by stimulating players’ psychological desires.

Dear Abby is written by Abigail Van Buren, also known as Jeanne Phillips, and was founded by her mother, Pauline Phillips.

Learn 9 meaningful ways to say goodbye to someone you love but can't be with. Discover healthy closure methods for impossible ...

Amazon Resale (formerly called Amazon Warehouse) is the home for many of the returns that the retailer processes. A ...

Café Pli is the first of its kind in Europe, inspired by Nuldam Space, a similar concept café in Seoul, South Korea. View on ...

Through fixed-payment obligations, they force utilities to take or pay for coal power even when cheaper, cleaner sources of electricity are available.