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Buffer sharing based on pipeline parallelism is quite susceptible to inter-core communication overhead. Existing work on concurrent lock-free (CLF) queue algorithm did not take full advantage of CPU cache features to improve performance. In order to implement a fast single-producer-single-consumer (SPSC) buffer scheduling queue, this paper proposes a cache-friendly CLF queue scheduling algorithm (CFCLF),...
This paper proposes a novel multi-scale image hashing method by using the location-context information of the features generated by adaptive local feature extraction techniques. The adaptive local feature extraction method is proposed for more robust feature descriptors. The global hash is calculated to determine whether the received image has been maliciously tampered. The multi-scale hash is calculated...
With prices of main memory constantly decreasing, people nowadays are more interested in performing their computations in main memory, and leave high I/O costs of traditional disk-based systems out of the equation. This change of paradigm, however, represents new challenges to the way data should be stored and indexed in main memory in order to be processed efficiently. Traditional data structures,...
This paper develops an ecological index (EI) model to assess ecological environment, which is more suitable for Guilin Karst Scenery, because of highlight a greater weight in land degradation, and a lower weight in biological abundance. The EI model considers the biological abundance index, vegetation coverage index, water density index, land degradation index, and environmental quality index, and...
Cooperative content offloading is a promising technology to lessen heavy burden of wireless networks and improve the quality of downloading services. Since few users are voluntary in providing free assistance, auction-based incentive mechanisms are designed to encourage participation. In existing auction-based incentive mechanisms, each provider only acts as a service seller. However, a provider could...
In order to solve the prominent problems such as slowness, subjectivity and inclination of human factors in competitive procurement method selection for general equipment maintenance materials, based on five key indexes including confidentiality, security, number of qualified suppliers, fund saving rate and project time limit, this paper presented a new quantitative model for procurement method selection...
In order to carry out quantitative evaluation of technology readiness of weapon equipment in the engineering development phase, a detailed method for evaluating technology readiness level is proposed. Based on the feature that technology engineering performance parameter is objective and quantifiable and Key Engineering Performance Parameter(KEPP) being taken as evaluation index for technology readiness...
The products of higher education provided to the customers by colleges and universities are service. Service attribute is the basic characteristic of higher education. Whether customer is satisfied is very important to the future of college. The model of service customer satisfaction in higher education is established to explore the relationship of service quality, image of colleges and universities,...
Segregation in the Hot-Mixed Asphalt (HMA) causes inferior homogeneity of pavement structure which is a key contributor to the early pavement damage. This paper, by statistic principles, analyzes the contributive factors to the segregation, indicates the major factors and guides the controls in actual project, thus to reduce the unevenness of the pavement and improve the quality and durability of...
To make accurate appraisal of the competitiveness of construction enterprises, DEA model is adopted and extended. The integrated competitiveness and state of returns to scale were analyzed. The inefficient DMUs were diagnosed and optimized by changing the index and using projection analysis and the efficient DMUs were discriminated by super efficiency and sensitivity analysis. Then, forecast about...
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