2. SOCIAL STATE RECOGNITION2
In the context of the JAMES robot bartender, the role of the Social State Recognizer
(SSR) is to turn the continuous stream of sensor messages produced by the low-level
input-processing components into a discrete representation of the world, the robot, and
all entities in the scene, integrating social, interaction-based, and task-based properties
[Petrick and Foster 2013]. The SSR constantly monitors the state and publishes a stateupdate
event to the Social Skills Executor (SSE) every time there is a change thatmight
require a response from the system. In addition to storing and discretizing all of the lowlevel
sensor information, the SSR also infers additional relations that are not directly
reported by the sensors. For example, it fuses information from vision and speech
to determine which user should be assigned a recognized spoken contribution and
estimates when customers are in a group. Most importantly in the current scenario—
where one of the main tasks is to manage multiple simultaneous customers, as in
Figure 1—the SSR must also inform the SSE every time a customer is seeking to
engage with the robot bartender.
2. SOCIAL STATE RECOGNITION2In the context of the JAMES robot bartender, the role of the Social State Recognizer(SSR) is to turn the continuous stream of sensor messages produced by the low-levelinput-processing components into a discrete representation of the world, the robot, andall entities in the scene, integrating social, interaction-based, and task-based properties[Petrick and Foster 2013]. The SSR constantly monitors the state and publishes a stateupdateevent to the Social Skills Executor (SSE) every time there is a change thatmightrequire a response from the system. In addition to storing and discretizing all of the lowlevelsensor information, the SSR also infers additional relations that are not directlyreported by the sensors. For example, it fuses information from vision and speechto determine which user should be assigned a recognized spoken contribution andestimates when customers are in a group. Most importantly in the current scenario—where one of the main tasks is to manage multiple simultaneous customers, as inFigure 1—the SSR must also inform the SSE every time a customer is seeking toengage with the robot bartender.
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