A common challenge for learning when applied to a complex``target''task is that learning that
task all at once can be too difficult due to inefficient exploration given a sparse reward …

Human-like chatbots–machines that can act as humans to chat about any topic–need to
listen, understand, reason, respond, and interactively learn to optimize the whole process …

A common challenge for learning when applied to a complex “target” task is that learning
that task all at once can be too difficult due to inefficient exploration given a sparse reward …