The key problem in the acquisition of the entity attribute knowledge for natural language understanding lies in the connections between the entity attributes. These connections could be represented by entity attribute collocations. It is impossible to get these entity attribute collocations manually....

The Automatic rolling production line has been in operation for several years since it was put into production in 2005. After that, the user interface of WINCC system turned to green screen constantly, which leads to more waste production, even serious accidents that cause shutdown of the whole production...

In this letter,a 8QAM-DMT-OFDM optical access scheme is proposed and demonstrated. 8QAM-OFDM optical access signal is generated using discrete multitone (DMT) modulation, and its optical spectrum, electric spectrum before electro-optical conversion, constellation diagrams before and after transmission...

The design, simulation and analysis of a dual-band metamaterial absorber(MMA) working at the microwave frequencies are presented. The single unit cell consists of two nested closed hexagon ring resonators and a metallic background plane, separated by a dielectric layer with only 0.7-mmthickness. The...

Aiming at the problem of low precision in the positioning stage of fingerprint location positioning technology based on WiFi, through the comparative study of the nearest neighbor classification algorithm (NN),K nearest neighbor classification algorithm (KNN) and Bias algorithm, and then we present a...

With logistics cost as objective function, the immune optimization algorithm was proposed to optimize the location selection of logistics distribution center. Feasibility analysis was conducted on the logistics demand points of 31 cities in China. Results indicated that the programming of the optimization...

In Software defined networks (SDN), the control plane and the data plane are separated. One or more controllers can program a router or switch directly. In an in-band SDN network, the control flow (flow to or out of the controller) and the data stream share a transmission path. Thus, when the fault occurs...

Moving vessel imaging by spaceborne Synthetic Aperture Radar (SAR) is one of the most complex SAR systems, but its modeling and simulation is mostly procedural oriented functional programming in Matlab. Aiming to improve the convenience and efficiency, and enhance the expansibility and portability of...

A specific wavelet--W97 has studied systematically. It has shown that the W 97 has good mathematical properties, and its lifting coefficients are very suitable for software and ASIC implementation. Lots of experiments have shown W97 precedes CDF97 on compression performance , and W 97's computation complexity...

The acceleration and deceleration section of the symmetric S-type curve are completely symmetrical, which can not meet the different requirements of the actual process and mechanical structure to the acceleration and deceleration section of the motor.Therefore, the asymmetric S-type curve is used to...

A structured recognition method of human behavior based on HMM is proposed to build the human action in this paper, only one camera which does not need to be adjust should be used in this approach. The robustness of the human behavior recognition model which is established by the free view angle of the...

Wideband interference (WBI) is a threat to synthetic aperture radar because it occupies a large bandwidth and lead to a poor quality of SAR images. This paper presents a method of wideband interference mitigation for SAR imaging based on adaptive compressed sampling. First, an adaptive and compressed...

Support vector regression (SVR) is widely applied as a powerful method for data regression in engineering design and optimization. The regression accuracy and generalization performance of SVR model depend on the proper setting of its parameters. To this end, it is necessary to find an automated reliable,...

In the practice of product design, the efficient control of complexity has increasingly gained importance. The Dependency Structure Matrix (DSM) has proved to be a useful tool for analysing system structure and managing structural complexity. In order to provide a deep insight of system structure in...

Although there are already a number of metrics of image quality assessment (IQA), most of them are complex and time consuming. This article proposed a simple method to qualify images' quality with full references. The proposed metric is tested on image database tid2013.

The course of action (COA) generation is the course of designing the task planning flow, which is one of the key supporting techniques while the military organization executing aerial operation. The high dynamic air battle field required the fast generation and regular updating with the change of the...

Human action recognition is a highly active research topic in the field of video surveillance, human computer interaction and other fields. Due to the huge amount of computation, many existence methods fail in real-time applications. In this paper, we proposed a human action recognition method based...

Indicator diagram is an important factor to study working status of diesel engine for engineers. To large extent, it will affect the safety operation of the vessel whether the results of calculation and analysis are accurate or not. According to the analysis on the frequency spectrum of a certain type...

The Communication Based Train Control system (CBTC)system controls the operation of the train by calculating the moving authorization for all the trains running on the line through the Zone Controller (ZC, for short) arranged on the ground. The centralized vehicle computing system does not need to arrange...