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Conventional hysteresis modeling of piezoelectric actuators using interferometers or capacitive sensors is often performed off-line. However, the hysteresis of the piezoelectric actuator changes as the load acting on it or the driving frequency of the input signal alters, demanding that the hysteresis of the micromanipulator be modeled on the fly. The employment of interferometers or capacitive sensors...
this paper proposes a shape descriptor with a feature graph to highlight both topological structure and geometric features of 3D mesh model. Firstly, the geodesic distance for the computation of an invariant mapping function on a 3D mesh model is adopted to obtain a Reeb graph (RG) skeleton. Secondly, discrete curvature values on the mesh vertices are analyzed to detect the topological changes and...
In this paper, scanning parameters optimization (SPO), a new method for parameters tuning of digital proportional-integral (PI) controller is proposed. It can automatically search for the optimal parameter group which contains both proportional action coefficient and integral action coefficient that fits the user's design from a set of candidate groups by scanning their performance indices, such as...
This paper proposes a novel personalized news recommendation system named InfoSlim. The new system uses semantic technique to annotate news items and user preference in order to add rich metadata information into traditional keyword vector. By doing this, the similarity measure between item profile and user profile can be done by not only lexical-level cosine-based method but also by semantic-level...
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