.
Human-robot interaction
The state of the art in sensory
intelligence for robots will have to progress through several orders of
magnitude if we want the robots working in our homes to go beyond
vacuum-cleaning the floors. If robots are to work effectively in homes and
other non-industrial environments, the way they are instructed to perform their
jobs, and especially how they will be told to stop will be of critical
importance. The people who interact with them may have little or no training in
robotics, and so any interface will need to be extremely intuitive. Science
fiction authors also typically assume that robots will eventually be capable of
communicating with humans through speech, gestures, and facial expressions, rather than a command-line interface.
Although speech would be the most natural way for the human to communicate, it
is unnatural for the robot. It will probably be a long time before robots
interact as naturally as the fictional C-3PO.
Speech recognition[edit]
Main
article: Speech recognition
Interpreting
the continuous flow of sounds coming
from a human, in real time,
is a difficult task for a computer, mostly because of the great variability ofspeech.The
same word,
spoken by the same person may sound different depending on local acoustics, volume, the previous word, whether or not the speaker has a cold, etc.. It becomes even harder when the
speaker has a different accent.[87] Nevertheless,
great strides have been made in the field since Davis, Biddulph, 
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