Vasant Srinivasan

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Based on a synthesis of eight major studies using six robots involving social gaze in robotics, this research proposes a novel behavioral definition as a mapping <i>G = E(C)</i> from the perception of a <i>social context C</i> to a set of head, eye, and body patterns called <i>gaze acts G</i> that expresses the engagement <i>E</i>. This definition places(More)
Promoting dependents’ perceptions of point-of-injury care robots as social actors may elicit feelings of companionship and diminish stress. However, numerous rescuers may control these robots and communicate with dependents through the robot, creating communication and interaction challenges that may be best addressed by creating a pure medium robot(More)
Robots that can leverage help from people could accomplish much more than robots that cannot. We present the results of two experiments that examine how robots can more effectively request help from people. Study 1 is a video prototype experiment (N=354), investigating the effectiveness of four linguistic politeness strategies as well as the effects of(More)
Designing and constructing affective robots on schedule and within costs is especially challenging because of the qualitative, artistic nature of affective expressions. Detailed affective design principles do not exist, forcing an iterative design process. This paper describes a three step design process created for the Survivor Buddy project that engages(More)
This study demonstrates that robots can achieve socially acceptable interactions using loosely synchronized head gaze-speech acts. Prior approaches use tightly synchronized head gaze-speech, which requires significant human effort and time to manually annotate synchronization events in advance, restricts interactive dialog, or requires that the operator(More)
This paper describes the Survivor Buddy human-robot interaction project and how it was used by four middle-school girls to illustrate the scientific process for an episode of "SciGirls", a Public Broadcast System science reality show. Survivor Buddy is a four degree of freedom robot head, with the face being a MIMO 740 multi-media touch screen monitor. It(More)
The paper reports on a discovery field exercise used to examine how disaster responders can use an audio and video equipped robot to interact with a trapped victim. In the exercise, a small robot with two-way video and audio communication was inserted into a physically simulated building collapse next to a trapped victim, and was provided to a team of(More)