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Minimum spanning tree is a classical problem in graph theory that plays a key role in a broad domain of applications.This paper proposes a minimum spanning tree algorithm using Prim's approach on Nvidia GPU under CUDA architecture. By using new developed GPU-based Min-Reduction data parallel primitive in the key step of the algorithm, higher efficiency is achieved. Experimental results show that we...
This paper firstly defines the factors that constitute the performance evaluation of urban science and technology investment, and then ascertains combined weights of evaluation of urban science and technology investment by applying Analytic Hierarchy Process (AHP) and entropy. Based on the theoretical and practical analysis, this paper selects 12 cities in China as the evaluation object, calculating...
On the basis of some research work about the educational evaluation index system of electronic games,we establish an educational evaluation system for electronic games using BP neural network model.The system has self-learning and adaptive characteristics.After the BP neural network trained with the expert knowledge,it not only has the experience of experts, but also realizes the changes from the...
There are two primary challenges in risk management in development of materiel: (1) The definition of the effect is dominant, which excessively relies on the engineering experience and lacks quantificational assessing methods; (2) There is no efficient way to distinguish cost, schedule and technical risk strictly, it is extremely difficult to evaluate their interrelated effects. This paper presents...
This paper proposes a differential codebook-based method to reduce the feedback overhead for closed-loop MIMO-OFDM systems. With the assumed multimode transmit precoding, both the number of data streams (rank) and the index of precoding matrix are fed back to the transmitter at each sub-band. By exploiting the channel correlation in frequency domain, an enhanced differential codebook (a subset of...
Water quality model is a useful tool to evaluate the future state of river water through evaluation of actual pollution loading or different management options. Based on the human brain physiology research, artificial neural network(ANN), which simulates the structure and mechanism of the human brain, is a kind of dynamic information processing system that eventually achieves certain functions of...
This paper proposes a ultra compact Wilkinson power combiner (WPC) incorporating synthetic transmission lines at K-band in CMOS technology. The 50 % improvement on the size reduction can be achieved by increasing the slow-wave factor of synthetic transmission line. The presented Wilkinson power combiner design is analyzed and fabricated by using standard 0.18 μm 1P6M CMOS technology. The prototype...
Node localization in the wireless sensor network (WSN) proves to be a crucial technique. In some special occasions, the precisions of conventional techniques cannot meet our needs due to the multipath influence. In this paper, a novel node localization scheme based on time reversal(TR) has been proposed. We match the signal to the scattering environment thus it will enhance the accuracy of the position...
The topic of tuition fees has recently sparked heated discussions in various media. Based on China's national conditions, this article collected elevant data, such as national student average funding, training costs, household disposable income and did the quantitative analysis for tuition standards of several types of schools, then built a Multi-level fuzzy evaluation model, which regarded the tuition...
Unstable angina (UA) is now a severe burden on society and family in both industrialized and developing countries, but the traditional related factors can not explain the whole situations. The effect of treatment is very limited. Determination of treatment based on the symptoms and signs in Traditional Chinese Medicine (TCM) have certain curative effect. But the objective of the syndrome diagnose...
It is found that the food price rising are the main reasons to promote the overall price level from operational features of the consumer price index (CPI). The food and energy supply shortage and pork price rising are the direct reason of the China price index rising recently. We study the dynamic relations among money supply growth, deposit reserve ratio, raw materials price and CPI index through...
Aiming at the features and the complexity of the inter-basin water diversion project, the multiobjective hierarchical structure model was established based on numerous assessment indexes and initial layout schemes. The model was solved through the improved AHP method with the optimum transfer matrix. The proposed method was successfully applied to the construction site layout of the middle route of...
Target identification has been an active researching area in past decades. In this paper, we present an iteration procedure to optimize the size of the undercomplete dictionary when multiple undercomplete dictionaries are used to characterize the scattering signatures of a complex target. Furthermore, we extend the signature reconstruction and decision criterion with only single undercomplete dictionary...
Leaderspsila performance is the sum of leaderspsila main part, mainly including action ability, working quality, resource consumption, cost utilization and outcome feedback, similarly including achievement and effectiveness, accomplishment and contribution, effectualness and validness in practice. It can be seen former researches mostly adopted theoretical research and qualitative analysis on leaderspsila...
Coal-fired power plants are the main pollution source in most parts of China. The implementation of cleaner production in coal-fired power plants is necessary for environmental protection and also an effective way of energy saving and emission reduction. This paper reviews the researches of cleaner production of coal-fired power plants in China and makes a survey on major studies of cleaner production...
XML employs a tree-structured model for representing data, and queries over XML documents are typically represented as twig patterns. At the same time, keyword search over XML documents has been well studied because of its intuitive and friendly query interface. Consequently, XQuery Full-Text emerges as a full-text extension to XQuery to query both the structure and the text content of XML documents...
Similarity join is a useful primitive operation underlying many applications, such as near duplicate Web page detection, data integration, and pattern recognition. Traditional similarity joins require a user to specify a similarity threshold. In this paper, we study a variant of the similarity join, termed top-k set similarity join. It returns the top-k pairs of records ranked by their similarities,...
Reclaim of electricity fee, which is ordinarily called as receivables in distribution management system, is very important for public utility, especially in the circumstance of electricity market, and to predict which credit types the clients would be is one of the most important work. Based on the data of MIS and objection of credit management, a practical credit index is designed. With the ANFIS...
New electromagnetic devices with extraordinary characteristics have been designed by form-invariant coordinate transformation of Maxwell's equations successfully. Here, a phase transformer was designed in this way. The wave front can change from cylindrical to plane through this transformer with a slab structure and the propagation direction of electromagnetic energy in this device can be modulated...
It's necessary to create a credible and general evaluating index model in network threat assessment. According to the network indices' effect, this paper proposed an algorithm which combines grey correlation degree in grey theory with traditional analytic hierarchy process (AHP) to determine the indices. It considered both objective and subjective factors. Experiments showed that this method had a...
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