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The Topic Models are a class of hierarchical statistical models for analyzing document collections and it has become one of the most used techniques in Natural Language Processing in the recent years. It assumes that each document could be expressed as a mixture of topics and each topic could be characterized by a distribution over words. In previous research, like in English language, Topic Models...
To the information-based development of ship, a regional-based network architecture of ship integrated platform management system (IPMS) is proposed. The Networked and quantized control systems (NQCS) of fin stabilizers under IPMS is investigated. When transmission rate restriction of network is considered, a novel fuzzy quantized encode method is proposed. And the control strategy under these encode...
It has analyzed reasons of high-speed dry cutting technology production and application in gear processing. It enumerates the comparisons between dry cutting technology and traditional processing. It has the merits of space and energy consuming, unit production cost, occupation area, processing time and so on. The experiment shows that the processing time in dry cutting is 25 percent of traditional...
The following topics are dealt with: human-machine systems; brain-computer interface; robotics; image processing; virtual reality; motor control; fault diagnosis; unmanned vehicles; support vector machines; and weapons.
The indoor air pollution produced by the ventilating system of the central air-conditioning draws many people's attention. In this paper, a new style of the central air-conditioning pipe aseptic sampling inspection robotic system is developed. The entire system comprises three parts: the caterpillar robot, computer and control box. Through real-time video transferred from cameras on robot, operators...
Ubi-floor is designed as an interactive floor system which allows user to interact with a floor based smart environment. Concerning context aware floor system, previous researches typically dealt with simple ideas of using gate pattern recognition supported by piezoelectric sensing devices or personal identification mediated by body weight estimation that cannot fully support position dependent context-awareness...
For magnetostrictive actuator (GMA) inherent hysteretic, a new real time hysteresis compensation method consisting of radial basis function neural network (RBF) feedforward and PID feedback controller is presented to achieve the position tracking control of GMA. Simulation results show the control strategy is effective for GMA hysteresis which is changed by the input signal, it can set up the hysteresis...
Based on fuzzy control theory, a new method for 3- Degree-of-freedom (DOF) parallel robot control is presented in this paper. Take example for DELTA robot; input the established physical model in Pro/E into simulation software ADAMS to establish its mechanical system model by seamless interface software MECH/Pro, where DELTA robot can do kinematics and dynamics simulation. Build the fuzzy controller...
Path tracking control problem of a mobile robot is discussed in this paper. It's a typical problem in the field of robot locomotion. A control strategy combined with fuzzy control based on the Line of Sight (LOS) is proposed. According to the experience of driver, fuzzy control rule is selected with hierarchical method. With Line-of-sight method, a fuzzy control approach is then constructed. The results...
A notion of intuitionistic fuzzy subfield is presented, which based on intuitionistic fuzzy sets. At the same time, we consider its some main properties and study up on its equivalent characterizations. The emphasis here is on some equivalent characterizations of intuitionistic fuzzy subfield. It is proved that our method presented in this paper is useful.
Influence diagrams have been widely applied to decision analysis and uncertain inference in many domains. Learning IDs aided by computer is an active research area. An ID structure learning algorithm is presented in this paper by comparing genetic algorithm. Experimental results show that this algorithm is more automatic and works exactly as well as the result of experts.
The well-possedness and exponential stability of the solution to a multi-state system with two repair distributions were discussed by applying the C0 semigroups theory of function analysis. First, the integro-differential equations described the system was transformed into some abstract Cauchy problem on some suitable Banach space. Second, by Hill-Yosida Theorem, the system operator generates a positive...
In practice, such a problem is often encountered that the proportion of target to background in image segmentation is very small. For this, a thresholding method used for the image segmentation of infrared small target is proposed in this paper, which is based on the area difference between background and target and intra-cluster variance. This method points out the existing methods of image threshold...
The paper proposed a fast face detection algorithm which integrates differential algorithm and mosaic rules for videos. The comprehensive algorithm with temporal difference and background difference was used for acquiring and tracking the moving objects, which can accurately locate the target region. In the region, the gray rules based on mosaic image were used for detecting face, in which the integral...
To achieve energy-saving and environmental protection, electrical heaters play an important role in the heating system in some northern regions of China. To achieve the centralized controlling and meet the different requirements of every heating unit, distributed control system that is applied to electrical heaters of public building is a better way to realize Intelligent control of electrical heaters...
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