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Kernel supervised discriminant projection (KSDP) is proposed in this paper. KSDP method not only preserves the discriminant information with intrinsic geometric relations, but also represents the complex nonlinear variations of face images. Experimental results demonstrate the effectiveness of the proposed method.
In a complex electromagnetic environment, and with little knowledge about the source electromagnetic signals, it is a big challenge to analyze an electronic system's electromagnetic compatibility (EMC) or arrange the electromagnetic signal source properly. To solve this problem, useful signals and noise signals should be separated first from the mixed signals that can be measured. In this paper, we...
Tracking moving objects in dynamic scenarios involves considerable difficulty because of occlusions. We report a novel tracker - a new multiple-step particle filter based feature selection for helicopter tracking. The objective of the proposed system is to track helicopter more efficiently and more precisely under bad environments. Color, edge, and position information are used to track stochastic...
Web page clustering and annotation promise improved search and browsing on the web, which has received significant attention in the past, however, most approaches have been targeted at only one of the two issues. In this paper, we address text clustering and annotation as a joint problem and show how the two enhance each other. We first present a topic model, via which we construct an association...
Study of the laser level meter based on semiconductor laser diode. Using the emission laser diode - avalanche diode accept - MCU control level meter is designed, The principle is analyzed using phase measuring the distance from the level meter to surface material, It has a simple structure, low cost, stable, high accuracy to good effect.
In the paper, the problems of chaos control for a class of switched chaotic systems with uncertainty is studied. Based on the adaptive control theory and common Lyapunov function method, a new adaptive controller is constructed, which can guarantee the switched chaotic systems asymptotic stability under arbitrary switchings. The results of simulation are given to show effectiveness of the proposed...
The paper discusses the modified projective synchronization of two different chaotic systems, considering the conditions of the master-slave systems with uncertain parameters, adopting the Lyapunov stability theory and adaptive control method, a sufficient condition is attainted for the stability of the error dynamic between master and slave system, finally, the numerical simulation is provide to...
The horizontal autonomous behavior agent of AUV is designed which takes the behavior of agent as a dynamic interaction process between AUV and environment. The vertical autonomous behavior agent is designed by fuzzy theory to integrate the depth keeping behavior and height keeping behavior. In order to coordinate the horizontal and vertical autonomous behavior agents, the coordination principle based...
According to the general form of updating data with forgetting factor, several conclusions are obtained in updating I/O Hankel matrices. Based on these conclusions, new subspace identification and relative SPC methods are proposed with variable forgetting factor for improving the performance in tracking the time-varying information. And the forgetting factor's update is realized by the distance between...
With carrier transfer alignment as the research object, the length of lever-arm between the master inertial navigation system (MINS) and slave inertial navigation systems (SINS) can't be obtained accurately, so there is a certain static measurement lever-arm error(SMLAE) problem. A method which listed the SMLAE as state vectors was brought out, and the velocity error equations including SMLAE term...
This paper first introduced the concept of fuzzy, then introduces the ways to soften the domain boundary of properties by fuzzy processing of the properties, and on this basis an algorithm based on probability weighted fuzzy association rules is proposed, at last this paper verified the feasibility of the algorithm through experiments.
The quality testing system of construction is still not very common and rarely applied in China. The necessity for researching on a quality testing system of construction based on AI and J2EE is discussed. Furthermore an integrated quality testing system of construction based on AI and J2EE is proposed. Finally, the plan to design and implement the system is expounded.
Pt100 of platinum resistance sensor is used to measure the internal temperature of the SLX series deep-cool container, and the conditioning circuit of temperature measurement is given. The temperature of the same temperature point is repeatedly measured to gain the 9 points datum, and the uniformity value of temperature is obtained as compare with the 9 points data under different temperatures point...
With the seismic prospecting developing into the complex and difficulty area, it is highly requested for structure interpretation. Calibration of horizon by the normal AC log usually can't correspond with through-well seismic profile, especially in the complex aloft-steep structure whose transverse velocity changes greatly, it is very easy to cause underground structure distort. It can exactly calibrate...
Existing methods on outlier detection doesn't take the semantic knowledge of the dataset into considerations. They only try to find outliers from dataset itself, which prevents from finding more meaningful outliers. In this paper, we consider the problem of outlier detection integrating semantic relations hidden in Web logs. We give a new definition of semantic outlier. A measure for identifying the...
Web log contains large volume of user browsing information. How to mine user browsing patterns is an important research topic. On the analysis of the present algorithms for mining user interests, user-interest can be used for mining user browsing patterns. In order to cluster overlapping objects effectively, a new concept-Cut Plane is introduced. And for achieving reasonable and acceptable running...
Many security risks are caused due to the nature of anarchy in P2P networks. It is an effective method to deal with these security problems by introducing the trust mechanism into the P2P networks. In this paper, some typical trust mechanisms were summarized, the latest systems and models are discussed, some problems faced by many researches are proposed and some ideas for future research are given.
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