LAYERS OF LEARNING

摘要

One of the buzz phrases in artificial intelligence research is "deep learning". It sounds exotic but is actually another form of the data-driven approach that has delivered so many successes in AI in recent years. Deep learning relies on a technology called neural networks, and has proven to be a valuable tool for solving hard perceptual problems such as recognising images. Consider two photographs of the same face. They can vary enormously. A big unresolved problem in AI is how to identify the features that remain invariant despite differences in the raw sensory data, and how to use them to recognise the photos as being of the same face.