The main types of data annotation include image annotation (bounding boxes, polygons), text annotation (sentiment, named entity recognition), audio annotation (transcription, sound event detection), ...

The Empire Mine State Historic Park preserves one of California’s richest gold mines. Visitors can look down the mine shaft that extends an amazing 5,000 feet into the earth! The mine owner’s cottage ...

The Serra Chapel within the mission complex holds a special distinction as California’s oldest building still in use for its original purpose. Standing within its hushed interior, beneath hand-painted ...