Recently in the world, there are a lot of reports concerning the relation between the EEG and the preference in the analysis of the biosignal. In this paper, personal preference using olfactory stimulus and the EEG ar...
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The security of Grid-systems assumes the consistency, accessibility and confidentiality of system and user information resources that circulate within those systems. These characteristics can be obtained by applying m...
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ISBN:
(纸本)1601320485
The security of Grid-systems assumes the consistency, accessibility and confidentiality of system and user information resources that circulate within those systems. These characteristics can be obtained by applying modern tools and technologies from network perimeter security as used in corporate information systems. Our goals are to provide: (i) validity and consistency of computational processes and their results (protection from Grid-terrorism);(ii) protection from interception or substitution for user routines and their results within the Grid (protection from Grid-spying);(iii) protection from full and partial unauthorized usage of computational resources (protection from Grid-parasites). As Gridsystems gain in importance as strategic information systems, reaching the above goals requires the development of an appropriate security policy. This policy should guarantee high immunity against various threats within the Grid-system environment. This paper presents an approach for creating advanced tools and technologies for strengthening security in Grid-systems. This approach is based on the principles of proactivity and self-similarity of distributed security management systems.
We describe an algorithm for navigation state estimation during planetary descent to enable precision landing. The algorithm automatically produces 2D-to-3D correspondences between descent images and a surface map and...
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ISBN:
(纸本)1563478935
We describe an algorithm for navigation state estimation during planetary descent to enable precision landing. The algorithm automatically produces 2D-to-3D correspondences between descent images and a surface map and 2D-to-2D correspondences through a sequence of descent images. These correspondences are combined with inertial measurements in an extended Kalman filter that estimates lander position, velocity and attitude as well as the time varying biases of the inertial measurements. The filter tightly couples inertial and camera measurements in a resource-adaptive and hence real-time capable fashion. Results from a sounding rocket test, covering the dynamic profile of typical planetary landing scenarios, show estimation errors of magnitude 0.16 m/s in velocity and 6.4 m in position at touchdown. These results vastly improve current state of the art and meet the requirements of future planetary exploration missions.
Real-time heuristic search methods, such as LRTA*, are used by situated agents in applications that require the amount of planning per action to be constant-bounded regardless of the problem size. LRTA * interleaves p...
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The advantage of neural network (NN) controllers lies on their capability of learning from training data to approximate highly nonlinear functions for nonlinear system control. In this paper, we present a MIMO neural ...
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Agents' pro attitudes such as goals, intentions, desires, wishes, and judgements of satisfactoriness play an important role in how agents act rationally. To provide a natural and satisfying formalization of these ...
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We present a novel algorithm for robot motion planning in dynamic environments. Our approach extends rapidly-exploring random trees (RRTs) in several ways. We assume the need to simultaneously plan and maintain paths ...
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We present a novel algorithm for robot motion planning in dynamic environments. Our approach extends rapidly-exploring random trees (RRTs) in several ways. We assume the need to simultaneously plan and maintain paths for multiple tasks with respect to the current state of a moving robot in a dynamic environment. Our algorithm dynamically maintains a forest of trees by splitting, growing and merging them on the fly to adapt to moving obstacles and robot motion. In order to minimize tree maintenance, we only validate the task paths, rather than the entire forest. The root of the inhabited tree moves with the robot. Dynamic re-planning is integrated with tree and forest maintenance. Coupling the robot motion with the planner enables us to support multiple tasks, for example providing an "escape" path while moving to a goal. The robot is free to move along whichever task path it chooses. We highlight the work by showing fast results in simulated environments with moving obstacles.
This paper discusses the use of genetic algorithms (GA) in a perimeter security CAD system (PSCAD). In this paper we compare the performance of a PSCAD system that uses exhaustive search for optimization with one that...
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This paper discusses the use of genetic algorithms (GA) in a perimeter security CAD system (PSCAD). In this paper we compare the performance of a PSCAD system that uses exhaustive search for optimization with one that uses a genetic algorithm.
Ultrasonic sensors are often utilized for perceiving the outside world. In this paper, we propose the construction of a new ultrasonic recognition system for identification of transparent object. The proposed recognit...
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ISBN:
(纸本)4907764278
Ultrasonic sensors are often utilized for perceiving the outside world. In this paper, we propose the construction of a new ultrasonic recognition system for identification of transparent object. The proposed recognition system consists of an ultrasonic transmitter, an ultrasonic receiver, and a recognition unit. The system's receiver is made up of plural ultrasonic sensor array. The receiver outputs the peak values and the positions of ultrasonic sound pressure waves. Their values and positions are input in to recognition unit, which consists of the neural networks for object identification and the neural networks (NNs) for the measurement of the object's position. We have designed and built a prototype system for identification and position measurement for polyethylene terephthalate bottle (Pet bottle). We tested this system by attempting to identify and measure the positions of seven kinds of Pet bottle. The experimental results showed perfect identification and an accuracy of about 5mm.
We propose an electric scanning laser rangefinder based on controlling the intensity of plural light sources. The method first projects two different-powered light patterns with almost uniform intensity, and a parabol...
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We propose an electric scanning laser rangefinder based on controlling the intensity of plural light sources. The method first projects two different-powered light patterns with almost uniform intensity, and a parabolic light pattern with a single peak which combines the outputs of each light source. From our experimental results, we conclude that the proposed electric scanning approach is effective for the 3D surface measurement of Lambertian objects with various colour patterns and specular objects.
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