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Filter bank multicarrier (FBMC) systems based on offset quadrature amplitude modulation (OQAM), namely FBMC-OQAM, have been criticized for their inefficiency in the use of spectral resources, because of the long ramp-up and ramp-down tails at the beginning and the end of each data packet, respectively. We propose a novel method for shortening these tails. By appending a set of virtual (i.e., none...
To promote the forecasting performance of Fuzzy time-series models, based on complex network, a novel fuzzy time series model for stock price forecasting was pressented, this pressented model includes the concept of the complex network and weighted adaptive expectation method. By comparing the fuzzy time series model of based on complex network and weighted adaptive expectation fuzzy time series model,...
This paper develops a new self-excited threshold autoregressive model (SETAR) for US equity Index returns modeling and analysis. First, a two regime switching model is formulated. The regime state is controlled by a simple piecewise function of lagged values from the time series itself. The hypothesis test is conduct to verify the statistical significance of two regimes in stock index returns. Then...
Filter bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) signaling offers almost the full spectral efficiency (one complex symbol per unit area in the time-frequency plane) for long data packets. However, because of the ramp-up and ramp-down of the waveform at the beginning and the end of each packet, its spectral efficiency can drop significantly in short packets/data bursts...
This paper is an introduction to software performance automated testing and theory. It introduces the features of Open Xml storage and SQL Server storage. Then this paper sets three state scenes and chooses different test automated tools respectively. Finally, it uses tools to monitor software performance index from these two data storage systems. Results are then analyzed, comparing the quality performance...
A supplier evaluation index system which takes the manufacturer as the core enterprise is established. GAHP is used to organize the evaluation information of a group of experts, by which manufacturer can decide the relative importance of each attribute. A ranking process is conducted on several suppliers based on TOPSIS method with interval numbers. Finally, a numerical example is used to prove the...
Private Offered Fund develops very rapidly in China, it has become a very important part of financial market. It has important insignificant that study the risk system to steady the financial market of China. In this research, we established system of risk assessment of private offered fund in China and assessed the risk level of each indexes by using AHP-Fuzzy Comprehensive Evaluation Methods. The...
In order to quantitative analysis the characteristic of drivers' visual search behavior, the paper proposed the conception of Visual Interesting Region(VIR), which includes area and barycentric coordinates two indexes. Firstly, the paper carried out the laboratory experiment and outdoor testing, and obtained the eye movement indexes. Secondly, the indexes of the area and the barycentric coordinates...
Electro-hydraulic driving 6-dof parallel robot suffers from non-linearity, strong load coupling disturbance and parameters variations when it moves. In order to solve the problem of precise trajectory tracking for 6-dof parallel robot, a decentralized control strategy was used and a 2-dof QFT robust controller was designed in the joint space of robot. Experiment results show that the 2-dof QFT robust...
Toyota suffered the large-scale recall crisis in 2010, but the origin of lean production way of TOYOTA “high quality, low cost, customer first” doesn't change, and it still has great vitality. In this paper, a mechanism model between the lean production and the enterprise competitiveness is built, two cases of well-balance mixed production for various model types are studied, and the experience of...
For wavelet-based image compression algorithm, it focuses on the hierarchical trees algorithm (SPIHT) and makes description of the principle and process of the algorithm. Apply MATLAB to convert the gray image by wavelet transformation, then conduct coding on wavelet transform image coefficients SPIHT. The received bit stream obtained by decoding and inverse wavelet transform the reconstructed image...
Cardiac physical phase (CPP) is another method for phase partition of cardiac motion besides the conventional cardiac time phase (CTP). The partition basis of CPP is not time but the deform information of left ventricle (LV) in different stages. The length of each CPP can reflect the function of LV, and CPP is also the calculation base of many other function parameters. So far the partition of CPP...
Intersection of inverted lists is a frequently used operation in search engine systems. Efficient CPU and GPU intersection algorithms for large problem size are well studied. We propose an efficient GPU algorithm for high performance intersection of inverted index lists on CUDA platform. This algorithm feeds queries to GPU in batches, thus can take full advantage of GPU processor cores even if problem...
The paper firstly introduces the characteristics of higher vocational research oriented courses, and analyzes the deficiency of the common methods used for evaluating the quality of the courses at present. Based on this, more scientific, comprehensive and objective multi-level fuzzy comprehensive evaluation method based on fuzzy theory is brought forward. At the same time, aiming at the characteristics...
In the recent years, as the development of automatic target recognition (ATR) technology, the performance evaluation for it becomes more and more important. However, the existent evaluation methods always have shortcomings such as needing too many samples or needing artificial intervene to determine some parameters like weights. In order to solve these problems, we proposed a new performance evaluation...
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