Forthcoming articles

International Journal of Intelligent Information and Database Systems

International Journal of Intelligent Information and Database Systems (IJIIDS)

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International Journal of Intelligent Information and Database Systems (13 papers in press)

Regular Issues

  • Impacts of Feature Selection on Classification of Individual Activity Recognitions for Prediction of Crowd Disasters   Order a copy of this article
    by Ali Selamat, Fatai Sadiq, Ondrej Krejcar, Roliana Ibrahim 
    Abstract: We examined possibility of feature selection using Statistical Based Time Frequency Domain (SBTFD) extracted features for human activity recognitions. This is to reduce the dimension of features space, remove redundant features to improve accuracy and minimize false negative alarm for crowd disasters. For this, we analyzed and classified 54 SBTFD features obtained from 22,350 instances comprising of climb down, climb up, peak shake while standing, standing, still, and walking; as classes V1, V2, to V8, respectively. The individual activity recognition dataset (D1) were collected from 20 students in a well-known institution in Malaysia. In addition, a similar dataset (D2) from repository was used. The dataset contains 250,936 instances from 9 users for smartphone accelerometer signals. Both datasets were subjected to Minimum Redundancy Maximum Relevance (MRMR), correlation and chi-square techniques to filter the relevant SBTFD features to select effective features to reduce the dimension. Based on the selected features, we applied 10-fold cross validation using WEKA with Random Forest (RF), J48, Sequential Minimal Optimization (SMO) and Naive Bayes (NB) classifiers to classify and predict abnormality behaviour classes V1 to V8. We achieved an excellent accuracy and reduce false negative rate to safe human lives from crowd disasters with 7 features of MRMR using RF.
    Keywords: Statistical Based Time Frequency Domain (SBTFD); human activity recognitions; Minimum Redundancy Maximum Relevance (MRMR); chi-square; dimensional reductions.

  • An approach oriented viewpoints for cooperative information system eliciting requirements   Order a copy of this article
    by Kahina Kessi, Zaia Alimazighi, Mourad Chabane Oussalah 
    Abstract: Cooperative Information System (CIS) is a complex system, that involves the cooperation of several stakeholders sharing a common purpose, and each one is distinguished by his own viewpoint on the system. This makes its development more difficult. The successful design of a CIS is then mainly based on the definition of the requirements engineering phase. In software engineering domain, especially in requirements engineering domain, Viewpoint and abstraction level are two important concepts introduced to reduce systems complexity. They can handle the increasing complexity of today's enterprise and information systems by breaking down the system into several viewpoints where each viewpoint can be decomposed into abstraction levels to have more or less details. Complete requirements for the system are collected from the combination of the requirements derived from the different viewpoints.\ In this paper, we present an approach oriented viewpoints/abstraction levels which defines the necessary concepts to elicit the requirements of a CIS. In doing so, a model driven method is proposed in order to develop a CIS modeling tool. This method consists first of a conceptual modeling, where we propose a meta-model oriented viewpoints/abstraction levels which decomposes a CIS according to its different viewpoints. We then propose the modeling tool VpCIS (Viewpoints for Cooperative Information System) generated from the meta-model using Polarsys (an open source based on Eclipse) and some integrated plug-ins.
    Keywords: viewpoints; abstraction level; needs analysis; requirements engineering; cooperative information system.

  • Application of multi-objective firefly algorithm based on archive learning in robot path planning   Order a copy of this article
    by Fan Tanghuai, Wang Jiayuan, Feng Mirong, Zhang Xi, Wang Jiajia, Wu Ruixiu 
    Abstract: Addressing the defects of slow convergence and low solution precision with multi-objective firefly algorithm, we propose a multi-objective firefly algorithm based on archive learning. The algorithm saves the elite particles obtained from each generation in an external archive, and then randomly selects a particle from the external file as the learning object of the firefly to participate in the population evolution. The algorithm was verified by four test functions ZDT1, ZDT2, ZDT3 and ZDT6 and evaluated by IGD comprehensive evaluation index. Experiments have shown that the modified firefly algorithm does not only have a higher ability to escape from local optima, but also displays a significant improvement in convergence speed and solution precision. Our algorithm is more suitable for multi-objective optimization problems that have a higher complexity. When applied to robot path planning, our modified algorithm can yield shorter length and higher smoothness of the path.
    Keywords: Multi-objective; firefly algorithm; external archive; path planning.

  • Chinese Text Classification Based on Character-level CNN and SVM   Order a copy of this article
    by Huaiguang Wu, Daiyi Li, Ming Cheng 
    Abstract: With the rapid development of the Internet, the high dimensional text data has increased rapidly. How to build an efficient and extensible text classification algorithm has become a hot topic in the field of data mining. Aiming at the problems of high feature dimension, sparse data and long computation time in traditional SVM classification algorithm based on TF-IDF (Term Frequency-Inverse Document Frequency), we propose a novel hybrid system for Chinese text classification: CSVM, which is independent of the hand-designed features and domain knowledge. Firstly, the encoding words are done by constructing a text vocabulary of size m for the input language, and then quantize each word using 1-of-m encoding. Secondly, we exploit the CNN (Convolutional Neural Network) to extract the morphological features of character vectors from each word, and then through large scale text material training the semantic feature of each word vectors are be obtained the semantic feature of each word vectors. Finally, the text classification is carried out with the SVM multiple classifier. Testing on a text dataset with 10 categories, the average recognition rate of CSVM is up to 99%. The experimental results show that the CSVM algorithm is more effective than other traditional Chinese text classification algorithm.
    Keywords: TF-IDF; SVM; Character-level CNN; Text vectorization; Text classification.

Special Issue on: Evolutionary Algorithms in Intelligent Systems

  • Object tracking using the particle filter optimized by the improved artificial fish swarm algorithm   Order a copy of this article
    by Zhi-Gao Zeng, Haixing Bao, Zhiqiang Wen, Wenqiu Zhu 
    Abstract: In particle filter algorithm, the weight values of particles will gradually decrease as the increase of iteration times and the variance of the weight values of the particles will increase. This will lead to an increase in the deviation between the estimated state and the true state. In order to deal with this problem, an improved particle filter algorithm is proposed in this paper. That is, an improved artificial fish swarm optimization algorithm is used to optimize the traditional particle filter. In the improved particle filter algorithm, the resampled particles will be driven to the region with high likelihood function to increase the weight values of the particles. Thus, the estimated state is closer to the real state. Experiment results show the advantage of our new algorithm over a range of existing algorithms.
    Keywords: object tracking; particle filter; artificial fish swarm algorithm.

  • Solve the IRP Problem with an Enhanced Discrete Differential Evolution Algorithm   Order a copy of this article
    by Shi Cheng, Zelin Wang 
    Abstract: The inventory -routing problem is a NP hard problem. It is difficult to find the optimal solution in polynomial time. Many scholars have studied it in many years. This paper analyzes the inventory-routing optimization problem, and comprehensive differential evolution algorithm is good performance in solving combinatorial optimization problems. The differential evolution algorithm was improved to make it be suitable for solving discrete combination optimization problems. In order to improve the performance of the differential evolution algorithm to solve the inventory routing problem, this paper puts forward dynamic adjustment of mutation factor and crossover factor of the differential evolution. It is proved by numerical experiments that the proposed algorithm has certain performance advantages, and it also proves that the improved algorithm can improve the performance of the algorithm by dynamic adjustment of the mutation factor and crossover factor.
    Keywords: differential evolution algorithm; inventory routing problem; mutation factor; crossover factor.

  • Inventory routing optimization using differential evolution with feasibility checking and local search   Order a copy of this article
    by Hu Peng, Changshou Deng 
    Abstract: The inventory routing problem (IRP) is to minimize inventory and transportation costs simultaneously for increasing profitability of the system. However, the two costs are conflicting in most case and hard to solve. As a promising evolutionary algorithm, differential evolution (DE) has been successfully applied to solve many real-world optimization problems, but we found that it is not used to optimize the IRP. In this paper, for the first time, we utilize the DE algorithm to optimize the one-to-many IRP where a product is shipped from supplier to a set of retailers over a planning period. In the proposed DEIR algorithm, the solution feasible checking method, the local search method and the optimal routing method based on DE are designed to suit the IRP solving. The computational tests have been conducted on 50 benchmark instances. Experimental results and comparison with different parameter settings have proved that the proposed algorithm is competitive.
    Keywords: Differential evolution; Inventory routing problem; Feasible checking; Local search.

  • Hybrid Fireworks Algorithm with Differential Evolution Operator   Order a copy of this article
    by JINGLEI GUO, Wei Liu, Ming Liu, Shijue Zheng 
    Abstract: As a population-based intelligence algorithm, fireworks algorithm simulates the fireworks explosion process to solve optimization problem. A comprehensive study on enhanced fireworks algorithm (EFWA) reveals that the explosion operator generates too much sparks for the best firework limits the exploration ability. A hybrid version of EFWA (HFWA_DE) is proposed by adding the differential evolution (DE) operator. In HFWA_DE, the population is divided into two subpopulations, then each subpopulation evolves with FWA operator and DE operator separately and exchanges the elitist individual. Experiments on 20 well-known benchmark functions are conducted to illustrate the performance of HFWA_DE. The results turn out HFWA_DE outperforms some state-of-the-art FWAs on most testing functions.
    Keywords: Fireworks Algorithm; DE operator; explosion; exploitation; exploration.

  • Ant colony optimization with local search for the bandwidth minimization problem on graphs   Order a copy of this article
    by Jian Guan, Geng Lin, Huibin Feng 
    Abstract: The bandwidth minimization problem on graphs (BMPG) is an NP-complete problem, which consists of labeling the vertices of a graph with the integers from 1 to n (n is the number of vertices) such that the maximum absolute difference between labels of adjacent vertices is as small as possible. In this paper, anrnapplication of the ant colony optimization with local search is presented to solve the bandwidth minimization problem. The main novelty of the proposed approach is an efficient local search combined with first improvement and best improvement strategies. A fast incremental evaluation technique is employed to avoid excessive fitness evaluations of moves in local search. Computational experiments on 56 benchmark instances show that the proposed algorithm is able to achieve competitive results.
    Keywords: metaheuristics; ant colony optimization; bandwidth minimization problem; local search.

  • Applying Distance Sorting Selection in Differential Evolution   Order a copy of this article
    by Yuxiang Shao, Zhe Chen, Yuan Liu 
    Abstract: Differential Evolution is eligible for solving continuous optimization problems. So far, the imbalance between exploration and exploitation in DE runs often leads to the failure to obtain good solutions. In this paper, we propose distance sorting selection. According to the individual has the best fitness among parents and offspring is selected firstly. Then, the genotype distance from another individual to it, the distance in their chromosome structure, decides whether the former individual is selected. Under the control of a adaptive scheme proposed by us, we use it replace the original selection of the CoBiDE in runs from time to time. Experimental results show that, for many among the twenty-five CEC 2005 benchmark functions, which have the similar changing trend of diversity and fitness in runs, our adaptive scheme for calling selection based on distance sorting brings improvement on solutions.
    Keywords: Exploration and exploitation balance;Distance;Stagnation;Premature convergence;CoBiDE.

  • outlier detection based on cluster outlier factor and mutual density   Order a copy of this article
    by Zhang Zhongping, Zhu Mengfan, Qiu Jingyang, Liu Cong, Zhang Debin, Qi Jie 
    Abstract: Outlier detection is an important task in data mining with numerous applications.Recent years,the study on outlier detection is very active,many algorithms were proposed including that based on clustering.However, most outlier detection algorithms based on clustering often need parameters,and it is very difficult to select a suitable parameter for different data set. In order to solve this problem, an outlier detection algorithm called outlier detection based on cluster outlier factor and mutual density is proposed in this paper which combining the natural neighbor search algorithm of the Natural Outlier Factor (NOF)algorithm and based on the Density and Distance Cluster (DDC) algorithm.The mutual density and γ density is used to construct decision graph.The data points with γ density anomalously large in decision graph are treated as cluster centers.This algorithm detect the boundary of outlier cluster using cluster outlier factor called Cluster Outlier Factor(COF),it can automatic find the parameter.This method can achieve good performance in clustering and outlier detection which be shown in the experiments.
    Keywords: data mining;outlier;mutual density; gamma-density; cluster outlier factor.

  • A new quantum evolutionary algorithm using dynamic rotation angle catastrophe for knapsack problem   Order a copy of this article
    by Jialin Li, Wei Li 
    Abstract: In this paper, a quantum evolution algorithm (IQEA) based on dynamic rotation angle catastrophe technology is proposed to solve the knapsack problem. A quantum revolving gate operator with adaptive dynamic adjustment of the rotation angle is designed according to the evolution generations and fitness values. The population is divided into three parts equally, while preserving the optimal solution for each generation. Using the quantum rotation angles of different periods in the evolution process, the catastrophe operations of these three parts are carried out, and the parallel evolution of four types of individuals is realized. With the guidance of better individuals, multi-path optimization is performed to improve the parallelism of the algorithm. Effectively increase the diversity of the population, carry out multi-directional search, and also retain the excellent information in the offspring population, ensuring the stability of the population. Experimental results show that the proposed algorithm is superior to traditional evolutionary algorithms and traditional quantum evolution algorithms.
    Keywords: knapsack problem; quantum evolutionary algorithm; adaptive revolving gate operator; dynamic catastrophic technology.

  • A Novel Particle Swarms With Mixed Cooperative Co-evolution for Large Scale Global Optimization   Order a copy of this article
    by Yufeng Wang, Wenyong Dong, Chunyu Xu 
    Abstract: Identification of variable interaction and grouping of variables plays an important role in the divide-and-conquer algorithm. In this paper, a novel particle swarms optimization with mixed cooperative co-evolution (MCCPSO) is proposed. It has two strategies and one mechanism: mixed grouping of variables (MGV) strategy, reallocate computational resources (RCR) strategy and a competitive leadership with a lifecycle mechanism. MGV can effectively identify the direct and indirect interactive variables and form a spare sub-group pool. RCR can give more computational resources to the more important subcomponents. The leader mechanism can prevent the PSO algorithm from falling into a local optimum. In order to understand the characteristics of MCCPSO, we have carried out extensive computational studies on the CEC'2010 benchmark function. The experimental results show that the performance of MCCPSO is better than the other four state-of-the-art algorithms.
    Keywords: Large Scale Global Optimization; Cooperative Co-evolution; Mixed Grouping of Variables; Reallocate Computational Resources.