Tactile feedback on touch surfaces has shown to greatly improve the interaction in quantitative and qualitative metrics. Recently, researchers have assessed the notion of remote tactile feedback, i.e., the spatial separation of touch input and resulting tactile output on the user’s body. This approach has the potential to simplify the use of tactile feedback with arbitrary touch devices and all...

This paper presents a procedure for the identification of two types of a continuous-time linear system interconnected by direct and feedback memoryless nonlinearities. The first case is the continuous time Hammesrstein system and the second is a specific case of the continuous time Wiener system. The direct and feedback nonlinear elements, described by bounded unknown functions, are expressed a...

Neonatal resuscitation is one of the most frequently performed procedures, and it is often successful if the ventilation applied is adequate. Over the last decade, interest in seeking objectivity in evaluating the infant's condition at birth or the adequacy and effect of the interventions applied has markedly increased. Clinical parameters such as heart rate, color, and chest excursions are dif...

This paper describes a psychological experiment which was conducted to evaluate the influence of haptic feedback on the perception of self-motion in virtual reality. Participants were asked to estimate the angle of one turn made during a passive visual navigation. Sometimes, during the turn, a haptic feedback was sent to the dominant hand of the participants. This haptic feedback consisted in r...

Problems with Rationality Rational agents will not submit feedback at all because it is not rational for them to do so feedback is a public good, giving feedback is associated with costs but no direct gain. Reputation Mechanism needs to set incentives to submit feedback to further trustworthy feedback Problems with Rationality Rational agents will not submit feedback at all because it is not ra...

1 Direct search optimization Problems in the paper (SOF) Other problem, without gradient Aim of this work: Putting forward a class of optimization methods largely overlooked in systems and control: the direct search methods. They can however be very adequate and powerful for many complex problems (possibly including yours).

1 Feedback is critical in both human and computer tutoring because it has directive, facilitative, and motivational functions. An understanding of the feedback strategies of expert human tutors is essential for ITSs that aspire to model such tutors. Although previous research suggests that expert tutors provide indirect and delayed feedback, methodological concerns limit the generalizability of...

Predators can have positive impacts on their prey through such mechanisms as nutrient mineralization and prey transport. These positive feedbacks have the potential to change predictions based on food web theory, such as the assertion that enrichment is destabilizing. We present a model of a simple food web, consisting of a resource, a consumer, and its predator. We assume that the predator has...

This study presents a new strategy for shake table control that uses direct acceleration feedback without need for displacement feedback. To ensure stability against table drift, force feedback is incorporated. The proposed control strategy was experimentally validated using the shake table at the Johns Hopkins University. Experimental results showed that the proposed control strategy produced ...

In distance teaching, direct feedback to the students is difficult to give, but crucial for their learning success. The system Asterix was developed in order to support this direct feedback. It contains different interactive tasks from the area of the formal foundations of computer science. Asterix is available over an internet interface. The implementation of the interactive presentation and c...