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Forthcoming Articles
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Keywords: WEKA, Personality Traits, Social Well-being, Data Mining, Classification Algorithms
A COMBINED DELAY-THROUGHPUT FAIRNESS MODEL FOR OPTICAL BURST SWITCHED NETWORKS
ABSTRACT
Fairness is an important feature of communication networks; it is the distribution, allocation, and provision of approximately equal or equal performance parameters such as throughput, bandwidth, loss rate, and delay. In an optical burst switched (OBS) network, fairness is considered in three aspects: distance, throughput, and delay. Studies on these three types of fairnesses have been conducted, but they have usually been considered in isolation. These fairnesses should be considered together to improve the communication performance of the entire OBS network. This paper proposes a combined delay-throughput fairness model, where burst assembly and bandwidth allocation are improved to achieve both delay fairness and throughput fairness at ingress OBS nodes. The delay fairness index and the throughput fairness index are recommended as metrics for adjusting assembly queue length and allocated bandwidth for priority flows. Simulation results show that delay and throughput fairnesses can be achieved at the same time, which improves the overall communication performance of the entire OBS network.
Keywords: OBS networks, delay fairness, throughput fairness, combination model, adaptive control.
HYBRID NEIGHBOURHOOD COMPONENT ANALYSIS WITH GRADIENT TREE BOOSTING FOR FEATURE SELECTION IN FORECASTING CRIME RATE
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Crime forecasting is beneficial as it provides useful information to government and authorities in planning an efficient crime prevention measure. In most criminology studies, it is found that influence from several factors such as social, demographic, and economic significantly affects crime occurrence. Therefore, most criminology experts and researchers’ study and observe the effect of several factors on crime activities as it provides a relevant insight about possible future crime trends. Based on the literature study conducted, the applications of proper analysis in identifying significant factors that influence crime are found to be scarce and limited. Therefore, this study would like to propose a hybrid model that integrates Neighbourhood Component Analysis (NCA) with Gradient Tree Boosting (GTB) in modelling the US crime rate data. The NCA is a feature selection technique used in this study to identify the significant factors that influence crime rate. Once the significant factors were identified, an artificial intelligence technique that is GTB was implemented in modelling the crime data where the crime rate value was predicted. The performance of the proposed model was compared with other existing models using quantitative measurement error analysis. Based on the result produced, the proposed NCA-GTB model outperformed other crime models in predicting the crime rate. This was proven by the experimental result where the proposed model produced the smallest quantitative measurement error in the case study.
Keywords: Feature Selection, Artificial Intelligence, Neighbourhood Component Analysis, Gradient Tree Boosting, Crime Forecasting.
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Keywords: Audio Steganography, Cover Audio Selection, Multi-objective Optimisation Problem, Trade-off.
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Keywords: 2 satisfiability, genetic algorithm, Hopfield neural network, logic mining, online shopping.
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Keywords: bitcoin, cryptocurrency, linear, nonlinear, trend.
4Centre for Drug and Herbal Development, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Malaysia
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Keywords: visual style classification, digital game, Fleiss’ kappa model, intercoder reliability, machine-learning.