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For mobile video codecs, the huge energy dissipation for external memory traffic is a critical challenge under the battery power constraint. Lossy embedded compression (EC), as a solution to this challenge, is considered in this paper. While previous studies in EC mostly focused on compression algorithms at the block level, this work, to the best of our knowledge, is the first one that addresses the...
This paper proposes a novel TRansformation Under STability-reTraining Equilibrium CHaracterization (Trust-Tech) enhanced methodology for the solar energy prediction. This novel method is an ensemble of Trust-Tech-enhanced, group-based genetic algorithm (GA)-assisted SVM predictors. Several distinguished features of the proposed method are as follows: Firstly, feature selection algorithm is used to...
Time series modelling has long been used to make forecast in different industries with a variety of statistical models currently available. Methods for analyzing changing patterns of stock prices have always been based on fixed time series. Considering that these methods have ignored some crucial factors in stock prices, we use ARIMA model to predict stock prices given the stock-trading volume and...
Despite recent advances in uncovering the quantitative features of human activities in routine life, human call behavior in earthquake is still less clear. Taking the data of mobile phone records produced by the users in 3 days in the northwest of China, we systematically analyze the characteristics of mobile phone call patterns to earthquake by using ratio analysis and degree distribution method...
In this work, we proposed the impact of the rear laser process design applied to screen-printed passivated emitter and rear cell (PERC) structure. We compared different laser pattern design 1) line (reference), 2) Dash (2∶1), and 3) Dash (5∶1) on a high-efficiency level using 156 mm × 156 mm p-type Cz mono silicon wafer. It can be found that employing the laser pattern of dash 2:1 outperforms all...
This paper propose three novel approaches for clustering, called LPK-means algorithm, LPK-medoids and LPMK-medoids, based on label propagation algorithm. LPK-means algorithm runs like k-means algorithm, meanwhile LPK-medoids algorithm and LPMK-medoids run like k-medoids algorithm. The three proposed algorithms partition clusters by label propagation. To evaluate the proposed algorithms, we use six...
The paper takes the typical Karst-Phreatic in the north of China-Dawu Water Source as an example, and the risk assessment of groundwater pollution is conducted by using the Overlay and Index method. Unsaturated zone media, net recharge, rich water property of aquifer and depth to groundwater table are chose as the intrinsic vulnerability indexes, and types of land use, sources of pollutants and extent...
Assessing and understanding the level of city ecological security are of great importance to sustainable urban development. According to the pressure-state-response model, the indexes of city ecology security assessment were chosen. Subsequently, the assessment model based on projection pursuit technology was set up and used for a case of Hefei city. The result shows that the ecological security level...
Load balancing is critical to the performance of parallel processing systems. It is more difficult for network systems such as NIDS and Web Servers, because they must preserve flow order. But traditional flow-based load balancing schemes of network parallel processing systems, such as LLF, cost much resource and introduce lots of communication overhead. With the rapid popularization of multi-core...
This paper studies the realizing progress of data mining in psychological evaluation. Based on the matrix of evaluation data and the actual evaluation work, we propose a kind of generalized linear regression model with convex constraint, named as evaluation model, in which the dependent variable and regression coefficients all are unknown. We analyze the algorithm of the model with linear regression...
The product-harm crisis management affects consumerspsila purchasing behavior and it is important for the enterprise to evaluate the effect and understand the evolution. In academic field, may scholars have paid their attention to the subject, but most of existing researches assume that all consumers have the non-differential purchasing behavior, which is unacceptable for diverse personality in the...
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