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Signed networks with positive and negative links attract considerable interest in their studying since they contain more information than unsigned networks. Community detection and sign (or attitude) prediction are still primary challenges, as the fundamental problems of signed network analysis. For this, a generative Bayesian approach is presented wherein 1) a signed stochastic blockmodel is proposed...
The modelling for renewable energy system (RES) performance evaluation and impact analysis can be a challenging task, where there are multiple criteria with both quantitative and qualitative forms under uncertainty. Multi-criteria decision analysis (MCDA) methods have become increasingly popular in the decision-making for renewable energy systems because of the multi-dimensionality of the sustainability...
With a similar capability of processing spikes as biological neural systems, networks of spiking neurons are expected to achieve a performance similar to that of living brains. In recent days, many great achievements have been made in spiking neuron models and its learning algorithm. We build an integrated model using spiking neural networks (SNNs), which performs phase encoding method and delay learning-based...
E-healthcare systems of Wireless Body Area Network (WBAN) promise enormous change in future healthcare industry. The system generally consists of multiple sensor nodes that monitor various medical signals and deliver data to a network coordinator for further processing. One of the major issues of such systems is energy efficiency, owing to the limited power supply and difficult replacement of batteries...
Replica placement is an important technology in data grid to increase data availability and reduce access cost. Existing methods to resolve QoS-aware replica placement problem are only based on obtaining the minimal system cost. This paper further investigates the influence of economic benefit to QoS-aware replica placement problem and proposes a multi-objective optimization model. Also, an optimization...
The impact of land use and land cover changes (LUCC) on global carbon cycle raises more and more serious concerns. Various methods were assessed to determine the influence of LUCC on soil organic carbon (SOC). However, the regional patterns and causes of terrestrial carbon sources and sinks remain uncertain. We analyze the variation of SOC stock in farming-pastoral ecotone in relation to LUCC over...
In this paper, the nonlinear constrained multi-objective environmental economic dispatch (EED) problem is solved using fast multi-objective evolutionary programming (FMOEP). Due to the global warming by fossil fuel, environmental concern becomes more and more important in recent years. The purpose of multi-objective optimization algorithm is minimizing all the different objectives simultaneously and...
According to the similarities between biological growth and product architecture evolution, the key procedures of biological growth are introduced into product design. The self-organizing design strategy and its implementation methods are proposed by applying the product genes obtainment technology, amplification technology and translation technology into product growth design. Complexity strategy...
In this paper, a new biometric password multi-server authentication scheme with smart card is proposed. To the best knowledge of us, this is the first biometric password authentication scheme which can be used in the multi-server environment and the distributed network. This scheme combines the advantages of password and biometrics, which can strengthen the protocol's securities and has properties...
With cloud computing rising, as a base infrastructure, data center is getting more and more attentions. Design and implementation of automatic and accurate asset management has become an important task for data center management. Although there are many asset management solutions with RFID, the value of asset traceability in data center management is not being considered as a whole infrastructure...
Maintenance plays an important role in keeping the availability of civilian and military equipments at a satisfactory level. The issue, which decision maker is most concerned about, is how to keep the availability at a satisfactory level with less maintenance cost. In this study, we propose a simulation-optimization approach to spare parts allocation based on decision-maker's satisfaction. Firstly,...
In order to dig out the site location knowledge of express enterprise from mobile commerce system, we can cluster the geographical information which lies in electronic manifest. This paper proposes a new clustering method for site location; combine DBSCAN with spherical cluster request: when we can not provide site number K, we can acquire the locations which conform to circular distribution by the...
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