The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper mainly employs multi-fractal spectrum theory to study the time series of stock price fluctuations law. First, multi-fractal analysis on the stock market of China prove that stock price fluctuations obey multi-fractal random walk, and then research on the Multi-spectrum characteristics change before and after the continued strong fluctuations time sequence of stock prices through empirical...
According to multiproduct/multipurpose batch and continuous processes scheduling an overview of developments in the chemical processes scheduling is presented. Two scheduling methodologies based on time representation are introduced: one is discrete-time approaches the other is various continuous-time approaches, and the strengths and limitations of these approaches are examined. Also, important characteristics...
The metamorphic mechanism for operating the hatch door is analyzed in detail for its freedom varying before and after. Furthermore, the process of configuration transformation is researched using the theory of topology and metamorphic mechanism. A method is proposed to solve the problem that the metamorphic mechanism for operating the hatch door can not be researched using the current theory of metamorphic...
In the foundation of conventional iterative learning control, regarding the flexible rule which performances duplication, periodicity and not determinism with the change of condition in the controlled process, the control decision-making questions of the flexible iterative learning control method was emphatically studied. By improving the algorithm of iterative learning control, the system will achieve...
The observing of real world is the abstracting of nature in different levels of granularity. This paper applies quotient space granular method to the computer network routing, puts forwards a method using the granular computing method of quotient space to improve OSPF routing algorithm , describes the thought of granular layering and topological routing, defines the hierarchical dynamic routing (NCR)...
The parametric non-strict-feedback and unmatched uncertainty of surface ship straight-line tracking control was considered. With the help of Lyapunov stability theory, considering the characteristics of the rudder system, a novel adaptive stepping algorithm is proposed, which could guarantee the closed-loop system to be uniformly ultimately bounded. The result of simulations present the validity and...
Prediction of energy requirement is an important research topic. For fulfilling such prediction, neural network (NN) has testified to be a cost-effective technique superior to traditional statistical methods. But their training usually with back-propagation (BP) algorithm or other gradient algorithms, and some problems are frequently encountered in the use of these algorithms. In this paper, particle...
The theory of descriptor system (DS) has been studied intensively in recent years, but little attention was paid to study the model following control system (MFCS) for DS. In this paper, a design method of nonlinear model following control system with disturbances is proposed. We can design nonlinear model following control systems whose inner states are bounded based on the consideration to separate...
A novel Greed-backtracking algorithm (GBA) for the shortest path problem is proposed in this paper. Beginning with triples storage structure to save the data of a weighted directed graph, this paper lays emphasis on a series of greedy strategies and the GBA implementation, there follows the realization of the GBA with Java. In the end, satisfied results are obtained when we applied the GBA to one...
Reasonable resource deployment is an important guarantee for grid effective service. From industry application perspective, the resources is constrained by property, so as to GDCS have to deal with conflicts resulting from resource sharing. Based on the hierarchical task scheduling model, the incomplete resource deployment strategy was proposed in this paper. Firstly, queuing theory is used to solve...
An evolutionary mechanism of local-competing and global-cooperating is presented for cooperative parallel mechanism based multi-particle-swarm optimizer (CP-MPSO), the competitive relationship between the particles of the traditional serial particle swarm optimizer is analyzed. A weighted-best-information based the PSO with cooperation-characteristic is proposed. Finally, the implementation of CP-MPSO...
The application of Interactive Evolutionary Computation (IEC) requires that corresponding evolutionary algorithms should still have effective and stable performance with small population. The corresponding study of genetic algorithms as evolutionary algorithm is analyzed. A novel mutation strategy based on population entropy sampling to adjust the population diversity intentionally and adaptively...
To the traditional diagnosis of motor dysfunction and present situation of the method of restored to health treatment, this paper researches detection method of movement function and movement posture, which established movement function barrier patients upper limbs motion model and posture position calculation model, realized quantitative description of the parameters for motor dysfunction limb motion...
MAS design on simulation is an important design method for MAS. According to the need of MAS design based on simulation, the paper propose a method that based on the simulation to the candidate MAS designs supported by the HLA, immunity algorithm (IM) optimize the candidate MAS designs. The method combines the simulation capability of HLA and immunity algorithmpsilas outstanding feature in system...
The intelligent press forming of sheet metal is a completely new and comprehensive technology that combines control-science, computer science, material science and metal forming theory. Although the technology originated in 1980s from America, it had focused on the spring-back of V-shaped bending. The author expanded the the research field to the axis-symmetric part and non-axis symmetric part and...
In deregulated electricity markets, short term load forecasting is important for reliable power system operations, and significantly affects market participants. It is difficult and challenging in view of the complicated effects on load by a variety of factors. To appropriately capture the complex features of load, this paper presents a novel similar day-based wavelet neural network method. The key...
To reduce redundant data volume, save energy expenditure, and enhance intelligent control for multiple video cameras in video surveillance. We present a scheme for the video surveillance system using wireless sensor network (WSN) technology. When an intrusion signal is detected by a wireless sensor module, video cameras are activated and snap pictures in fixed time interval. A neighborhood linkage...
Data Superaddition is main means of data updating of DW (Data Warehouses). With many business intelligence systems now having to integrate just-in-time data to support real-time analysis, to improve the efficiency and real-time performance of data superaddition, a real-time data superaddition method based on triggers is presented. In the method, data changes of DB (Data Base) tables are captured by...
A new kind of intelligent control is discussed, namely, human simulated intelligent control (HSIC), which hierarchically include three levels: centrum chief level (CC), organizing and coordinating level (OC), and unit control level (UC). Then the control problem of arbitrary switch control of circular-rail double pendulum (CRDP) is studied. Finally, the control system for this control problem is designed...
On visual tracking, a particle filter algorithm was presented to track a moving target under clutter environment which can deal with rotation, scale changes, variations in the light source and partial occlusions. So it can track the target with robustness. The proposed method was based on particle filter, integrated with color histogram in the measurement model, and the system model was second order...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.