We consider a class extraction problem over semistructured data.A class C is extracted by grouping objects having similar (not necessarily identical) sets of properties into C, where the set of properties of C is the ...
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Advanced information and communication technolo-gies can be used to facilitate traffic incident *** an incident is detected and blocks a road link,in order to reduce the incident-induced traffic congestion,a dynamic s...
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Advanced information and communication technolo-gies can be used to facilitate traffic incident *** an incident is detected and blocks a road link,in order to reduce the incident-induced traffic congestion,a dynamic strategy to deliver incident information to selected drivers and help them make detours in urban areas is proposed by this ***-dependent shortest path algorithms are used to generate a subnetwork where vehicles should receive such information.A simulation approach based on an extended cell transmission model is used to describe traffic flow in urban networks where path information and traffic flow at downstream road links are well *** results reveal the influences of some major parameters of an incident-induced congestion dissipation process such as the ratio of route-changing vehicles to the total vehicles,operation time interval of the proposed strategy,traffic density in the traffic network,and the scope of the area where traffic incident information is *** results can be used to improve the state of the art in preventing urban road traffic congestion caused by incidents.
Focuses on a scheme for searching a contact point between a multifingered hand and an unknown object. Instead of mounting a distributed tactile sensor all over the finger links, the authors propose an active touch app...
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Focuses on a scheme for searching a contact point between a multifingered hand and an unknown object. Instead of mounting a distributed tactile sensor all over the finger links, the authors propose an active touch approach using joint compliance. The algorithm is composed of two phases. One is the approach phase, in which each finger is opened widely and approaches to an object until a part of a finger link is in contact with the object. The other is the detection phase, in which each finger posture is changed with slip while maintaining contact between object and finger. Using two selected postures during the detection phase, one can compute the intersecting point which leads to an approximate contact point. With a suitable combination of compliant joints and position-controlled joints, a finger link has the capability of changing its posture while maintaining contact with an object over a small angular displacement at a particular joint. This motion is essential in the contact point detection phase. The proposed algorithm is confirmed through simple experiments using a two-fingered robot hand.< >
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