In view of the defects of the current cloud computing resource management, which results in low utilization of resources. This paper proposes a new method of resource requirement for the cloud computing environment which is based on situation awareness. The proposed scheme comprehensively evaluates the current situation of the use of resources using AHP (Analytic Hierarchy Process). At the same time,...
In this paper we propose an approach that can find out the members for specific organizations based on user interaction on social networking Twitter. First we define three hypotheses to introduce user interaction on Twitter into organizational membership identification. Then we design the approach to mine colleagueship so as to recognize members for a specific organization. Given an organization with...
The paper focused on the robust control problem of switched systems. The switched systems contain actuator saturation, disturbance and state time-delay. First, to deal with actuator saturation the paper designed a nonlinear state feedback controller. Then based on multiple Lyapunov function method we obtained a sufficient condition of the stability of switched systems. The paper also estimated the...
The scattering intensity of cylinder particles is calculated with the Generalized Lorenz Mie Theory (GLMT) which is illumined in the Gaussian beam. The cylinder model is used to express the real non-spherical particles, and the scattering intensity of non-spherical particles is calculated due to the GLMT. The scattering intensity of the cylinder particle with the pane wave is also calculated as a...
This paper presents a real-time and predictive motion planner for autonomous ground vehicles. The motion planner can generate kinematically feasible and human-driving like trajectories based on an improved state-space trajectory generation method. Meanwhile, the motion planner also considers the future behavior of other participant vehicles through a control-space based Kalman predictor. The experimental...
According to the helicopter flight performance, a route planning method based on interfered fluid dynamic system is proposed for agricultural plant protection. The model of helicopter is used to determine the maximum lift, climb performance and front flight speed. The obstacle equivalent model is established, which is quantified into a disturbance matrix and the initial flow field is corrected to...
To enhance the performance of the bank-data warehouse and reasonably determine the detail of the data and the data granularity degree of the warehouse, a sample of data granularity classification of bank-data warehouse is presented. Firstly the granularity model of data warehouse is analyzed, and then the strategy of granularity classification is introduced. Based on the strategy a method of estimating...
In order to satisfy the requirements of PMSM servo system high performance control, this paper proposes a novel inertia identification method, which uses the improved particle swarm optimization (PSO) algorithm, and this method can estimate both the moment of inertia and load torque. With the sampled discrete date of motor speed and q-axis current, based on the minimum variance principle, the convex...
High density wireless sensor networks (HDWSNs) made up of a group of sensing units with limited computation, communications, sensing, and self-adaptation abilities. In HDWSNs, minimizing the power consumption of each cluster separately will not lead to optimum power consumption for the whole networks. The sensing units clustering problem is combinatorial in nature and consists of many hard restrictions...
In this paper, a social network model is built for the social network information in the social network, and the machine learning method is used to calculate the node trust value. First, the results calculated by the traditional node trust value calculation method and some auxiliary information are used as the training feature of the machine learning, and the measurement whether there is edge between...
On the basis of analyzing working principles of USB storage devices and researching on encryption technique of USB storage devices, aiming at the security demand of storage devices, the security architecture of USB storage encryption machine is designed, which includes access control based on security partition, double authentication based on encryption machine password, and data encryption based...
With the advent of the era of pervasive computing, human dependence on sensors is growing. Such sensor-aware contexts usually possess the characteristics of large-magnitude and uncertainty, so networked devices or systems driven by these contexts cannot get distinct and precise related context information yet, and then lead unable to provide users with satisfied desirable services. In order to solve...
We propose a fast progressive transductive support vector machine (FPTSVM) method for detecting changes in bitemporal multispectral images. Our method differs from other transductive SVM methods in that much fewer unlabelled data vectors need to be considered in each iteration for the determination of transductive samples. As a result, the computational cost of the method is reduced. To improve the...
Daily ship traffic volume statistics and prediction are of great significance to shipping market. Reliable prediction of daily ship traffic volume can instruct shipping company to make sound judgment and decision for operational management. Because of the mobility of ships, it may be difficult to obtain the ship traffic volume automatically and frequently. This paper defines four types' daily ship...
In recent years, it has been recognized that the there is a gapbetween artificial neural network and the brain neural network. The biological neural network is neither a random network nor a regular network, it is a network structure between the two. While the small world network has both a larger clustering coefficient of a regular network and a smaller average path length of a random network [1],...
For autonomous air refueling (AAR) of unmanned aircraft, the measurement of relative position between receiver aircraft and tanker aircraft is critical in the docking phase. This paper proposes a monocular vision-based relative position estimation method, which calculates the location coordinate by recognizing the beacons on the drogue with image processing. To increase the robustness for rejecting...
The purpose of this paper is to give an comprehensive consideration on maximum power point tracking (MPPT) design for micro-scale solar energy harvesting system. We focus on how to optimize MPPT strategy throughout its theoretical algorithm, circuit topology and hardware implementation. Based on a comparison results, we present an optimal design program for a low power low cost photovoltaic (PV) system...
High-precision mapping and localization contribute to mobile robot navigation. It also provides convenience, robustness and safety for navigation. But for the single feature and large-scale scene, to build high-precision mapping and localization has great challenges and difficulties. Meanwhile, high precise is unnecessary for simple task. Therefore, this paper proposes a new methods of environment...
A modified Hadamard matrix is proposed and the compression ratio is improved by using the compatible preconditioning method on the basis of transforming and decomposing compression method. With the modified matrix to transform the energy more focused, to better match test sets, and the hardware implementation is relatively simple. With the idea of test vector compaction, input bit-streams of the circuit...
Large-scale wireless sensor networks (LSWSNs) consist of a large number of wireless sensors that have processing, wireless communication and information acquisition abilities. LSWSNs are promising techniques in many areas such as target detection and tracking, commercial management, intelligent family, military use, preventing forest fire loss, medical diagnostic, etc. In LSWSNs, maximizing the network...