Forthcoming articles

 


International Journal of Data Science

 

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International Journal of Data Science (14 papers in press)

 

Regular Issues

 

  • Privacy preserving solution to prevent Classification Inference Attacks in Online Social Network   Order a copy of this article
    by Agrima Srivastava, Geethakumari G 
    Abstract: In order to improve their business solutions, the data holders often release the social network data and its structure to the third party. This data undergo node and attribute anonymization before its release. This, however, does not prevent the users from inference attacks which an un-trusted third party or an adversary would carry out at their end by analyzing the structure of the graph. Therefore, there is an utmost necessity to not only anonymize the nodes and their attributes but also to anonymize the edge sets in the released social network graph. Anonymizing involves perturbing the actual data which results in utility loss. Ensuring utility and preserving privacy are inversely proportional to each other and is a challenging task. In this work we have proposed, implemented and verified an efficient utility based privacy preserving solution to prevent the third party inference attacks for an online social network graph.
    Keywords: Privacy; Online Social Networks; Privacy Preserving Data Publishing;rnUtility; Network Classification.

  • An improved algorithm to handle noise objects in the process of clustering   Order a copy of this article
    by Hasanthi Pathberiya, Chandima Tilakaratne, Liwan Liyanage 
    Abstract: Cluster Analysis is considered as an approach for unsupervised learning. It tends to recognize hidden grouping structure in a set of objects using a predefined set of rules. Objects occupying unusual characteristics add noise to the data space. As a result, complexities and misinterpretation in clustering structures will arise. This study aims at proposing a novel iterative approach to eradicate the effect of noise objects in the process of deriving clusters of data. Performance of the proposed approach is tested on partitioning, hierarchical and neural network based clustering algorithms using both simulated and standard data sets supplemented with noise. An improvement in the quality of clustering structure resulted from the proposed approach is witnessed, compared to that of conventional clustering algorithms.
    Keywords: Clustering algorithms; Handling noise data; Mining methods and algorithms; k-means; Ward’s method; Self organizing map.

  • Survey on Iterative and Incremental Approaches in Distributed Computing Environment   Order a copy of this article
    by Afaf Bin Saadon, Hoda Mokhtar 
    Abstract: Iterative computation has become increasingly needed for a large and important class of applications such as machine learning and data mining. These iterative applications typically apply computations over large-scale datasets. So it is desirable to develop efficient distributed frameworks to process data iteratively. On the other hand, data keeps growing over time as new entries are added and existing entries are deleted or modified. This incremental nature of data makes the previously computed results of iterative applications stale and inaccurate over time. It is hence necessary to periodically refresh the computation so that the new changes can be quickly reflected in the computed results. This paper presents the existing distributed systems that support iterative and incremental computations on large-scale datasets. It describes the main optimizations and features of these systems and identifies their limitations.
    Keywords: Big data; Distributed systems; Iterative computation; Incremental processing.

  • Continuous Skyline Queries in Distributed Environment   Order a copy of this article
    by Ibrahim Gomaa, Hoda Mokhtar 
    Abstract: With the expanding number of communications from different mobile applications that acquire location information, the demand for continuous skyline queries has increased. Continuous skyline queries, unlike traditional skyline queries which consider the static attributes only, consider both dynamic and static attributes. In addition, the rapid growth in information and the extremely fast increase in the data volume and mobile applications that deal with such volume of data such as check-ins recommendation, information services, applications that focus on moving objects in road networks, and navigation services; have both driven the need to adapt new processing environments that are suitable for storing, processing, and maintaining huge amounts of data. In this paper, we present a number of efficient algorithms for processing continuous skyline queries on large datasets using MapReduce framework. We proposed three algorithms namely PCSQ-MR, PDCSQ-MR and EPCSQ-MR to compute the skyline query for a moving object. The main idea of our proposed algorithms is to compute the skyline query only once at the starting position; then update on the result at the movement of the query point rather than computing the skyline at every time from scratch. In addition, experimental results are conducted which demonstrate the accuracy, performance and efficiency of the proposed algorithm.
    Keywords: Continuous query processing; moving object; parallel computation; skyline queries; big data management.

  • Selection of K in K-means Clustering using GA and VMA   Order a copy of this article
    by Sanjay Chakraborty, Subham Raj, Shreya Garg 
    Abstract: Cluster analysis has been widely used in several disciplines, such as statistics, software engineering, biology, psychology and other social sciences, in order to identify natural groups in large amount of data. K-means is one of the most popular clustering algorithms. In spite of several advances in K-means clustering algorithm, it suffers in some drawbacks like, initial cluster centers, stuck in local optima etc. The initial guessing of cluster centers lead to the bad clustering results in K-means and this is one of the major drawbacks of K-means algorithm. In this paper, a new strategy is proposed where we have blended K-Means algorithm with Genetic Algorithm (GA) and Volume metric algorithm (VMA) to predict the best value of initial cluster centers, which is not in the case of only K-means algorithm. The paper concludes with the analysis of the results of using the proposed measure to determine the number of clusters for the K-means algorithm for different well-known data sets from UCI machine learning repository.
    Keywords: Clustering; Cluster centers; K-means; Genetic Algorithm; Volume metric algorithm;.

  • A retrospective data analysis of Legionella pneumophila diagnostic procedures and their impact on patients management: The experience of a rapid point-of-care test   Order a copy of this article
    by Eliona Gkika, Dimosthenis Chochlakis, Yannis Tselentis, Constantin Zopounidis, Vassilis Kouikoglou, Kitsos Gkikas, ANNA PSAROULAKI 
    Abstract: This study aims at a comparative assessment of a conventional test and a point of care test (POCT) for the diagnosis of Legionella pneumophila, by considering laboratory and clinical performance (test turnaround times (TAT), antibiotic treatment, and diagnostic efficiency, as well as, economic criteria. A retrospective analysis was undertaken using data from the microbiology laboratories of two hospitals in Crete, Greece. We focused on hospitalized patients with clinical evidence of pneumonia and positive test for L. pneumophila (confirmed cases). Hospital A adopts a conventional serological diagnosis based on an indirect fluorescent-antibody technique (IFA) and Hospital B uses a urinary antigen test (UAT), which is a rapid POCT. The mean TAT was 4.45 days (range 0 21) for the conventional IFA test and 0.11 days (range 0 64) for UAT. A total of 24 laboratory positive cases (11 inpatients, 13 outpatients) were identified out of 905 analyzed samples taken from 751 people. Infection was more prevalent in men, with a mean age of 61.77 years (SD=20.03; range 5 92). The mean daily hospitalization cost of confirmed cases was 127.45 for Hospital A (two in-patients with costs 91.00 and 163.90) and 79.86 for Hospital B (nine in-patients with cost range 60.00 135.00). The mean antibiotic treatment cost per patient in Hospital A was much higher than in Hospital B. Provision of a rapid laboratory diagnosis of L. pneumophila could significantly decrease time to diagnosis, improve treatment and consequently reduce the associated hospitalization charges.
    Keywords: Legionella pneumophila; Point of care testing; turnaround time; length of stay; cost reduction.

  • ANALYSIS OF WEATHER DATA USING VARIOUS REGRESSION ALGORITHMS   Order a copy of this article
    by Jahnavi Y 
    Abstract: Weather forecasting is a vital application in meteorology and has been one of the most challenging problems around the world. Data mining is a process that uses a variety of data analysis tools to discover patterns and relationships in data that may be used to make valid predictions. This is carried out using several regression algorithms. This paper focuses on weather analysis using various regression algorithms in data mining. There are various regression algorithms such as Linear Regression, Nonlinear Regression, Classification And Regression Tree, Multilayer Perceptron Neural Network, Support Vector Machine etc. In this work Linear Regression, Classification And Regression Tree, Multilayer Perceptron Neural Network and Support Vector Machine are used. For weather analysis various primary atmospheric parameters such as average temperature, average pressure and relative humidity are considered. The performance is analyzed using various evaluation measures. Evaluation criteria like root mean square error, mean absolute error, relative absolute error and root relative square error are used for measuring the performance of regression algorithms. By experimentation it has been observed that the error rate of Linear Regression is more than Classification And Regression Tree, the error rate of Classification And Regression Tree is more than Multilayer Perceptron. Support Vector Machine is better than Multilayer Perceptron, Classification And Regression Tree and Linear Regression. For relative root square error, Classification And Regression Tree has higher rate in evaluating training data and test data.
    Keywords: Multilayer Perceptron; Classification And Regression Tree; Support Vector Machine.

  • Analysis of Co-authorship Network Based on Some Betweenness Centrality Concepts   Order a copy of this article
    by Divya Sindhu Lekha, Kannan Balakrishnan, Sunil Kumar R 
    Abstract: Reliant components of a network are the connector nodes which aid in establishing a strongly connected network. Betweenness centrality of a node well captures its connecting capability. We suggest some new betweenness centrality measures which could be useful in analysing the structural connectivity of a network. In this paper we study the behaviour of collaboration in a co-authorship network, namely the NetScience network, from the perspective of these measures. We analyse the network from a micro perspective, where we consider small groups of scientists doing research in a common subdiscipline. We show that each group is formed by the influence of only one or two highly collaborating authors. Another speculation was that even though these authors are highly influential in smaller groups they do not possess notable contribution to the overall research of main discipline.
    Keywords: Complex networks; Network centrality; Graph theory; Betweenness center; Collaboration network; Co-authorship network.

  • An Application of the Logic of Explanatory Power in Rough Set Analysis: Implications for the Classification of Decision Rules   Order a copy of this article
    by Anthony T. Odoemena 
    Abstract: This paper uses the logic of explanatory power to address the question of uncertain decision rule classification and interpretation in rough set data analysis. A set theoretic configuration of the measure of explanatory power is introduced. The usefulness of the measure is then examined in the context of two data setsone related to car evaluation and the other related to the provision of extra educational supports. It is found that the explanatory power measure has some interesting properties that enhance the informativeness and interpretation of non-deterministic decision rules. The result of the numerical analysis shows that the explanatory power index is unique. The index can also facilitate the establishment of an objective threshold that determines whether the explanatory relevance of the premise in a given decision rule is positive, negative, or neutral.
    Keywords: Rough sets; explanatory power; data analysis; decision rules.

  • Sentiment Analysis on Organizational Resilience   Order a copy of this article
    by Tiffany Maldonado, Ray Qing Cao, Lila Carden 
    Abstract: By applying a sentiment analysis, we examine how firms can achieve organizational resilience by focusing on two different operational strategies in their responses to adverse events: anticipatory responses or reactionary responses. We examined 210 firms and found that firms that focus on an anticipatory strategy of investing in corporate social responsibility benefited from increased organizational resilience. We also found that firms that focus on a reactionary focus of risk management practice in their daily operations also benefited from increased organizational resilience. Furthermore, our study revealed that firms that focus on the economic and environmental aspects of corporate social responsibility and the risk assessment process benefited from higher levels of organizational resilience.
    Keywords: Sentiment analysis; Texting mining; Big data; Data analytics; Organizational resilience; Corporate social responsibility.

  • A novel ensemble decision tree classifier using hybrid feature selection measures for Parkinson's disease prediction   Order a copy of this article
    by Bala Brahmeswara Kadaru, B. Raja Srinivasa Reddy 
    Abstract: Parkinson's disease and Alzheimer's disease are the most critical health issues in current days. In neurology, Parkinson disease affects the dopamine receptors of central nervous system. It affects the movement of patients. Dopamine cells are degenerated in this disease progressively, which leads to rapid growth of severity. Extensive amount of research works were done since years for prediction of Parkinson's disease in the early stage. Till date, there is no significant approach, which will provide optimised performance for prediction. Alzheimer's disease is another neurological disease, which generally leads to dementia in most cases Machine learning approaches are more promising approaches for the prediction of these above-said diseases. We presented a novel ensemble-based feature selection measure and decision tree model to predict Parkinson's disease. Experimental results proved that the proposed model has high computational accuracy and true positive rate compared with traditional feature selection measures and ensemble decision trees.
    Keywords: feature selection measures; ensemble decision tree; disease prediction.
    DOI: 10.1504/IJDS.2018.10017547
     
  • Performance analysis of NARX neural network backpropagation algorithm by various training functions for time series data   Order a copy of this article
    by D. Ashok Kumar, S. Murugan 
    Abstract: This study seeks to investigate the various training functions with non-linear auto regressive eXogenous neural network (NARXNN) to forecasting the closing index of the stock market. An iterative approach strives to adjust the number of hidden neurons of a NARXNN model. This approach systematically constructs different NARXNN models from simple architecture to complex architecture with different training functions and finds the optimum NARXNN model. The effectiveness of the proposed approach was seen to be a step ahead of Bombay Stock Exchange (BSE100) closing stock index of the Indian stock market. This approach has identified optimum neuron counts in the hidden layer for every training function with NARXNN, which reduces neural network (NN) structure and training time and increases the convergence speed. The experimental result reveals that neuron counts in the hidden layer cannot be identified by some rule of thumb.
    Keywords: NARX neural network; time series data; training functions; stock index; forecasting; performance analysis.
    DOI: 10.1504/IJDS.2018.10017545
     
  • Managing data using an ontology for enterprise decision making: a case of the World Bank   Order a copy of this article
    by Tengku Adil Tengku Izhar, Torab Torabi, Trieu Minh Nhut Le 
    Abstract: People have access to more data in single day than most people that have access to data in the previous decade. This data is created in many forms and it highlights the development of big data. The challenge is how to capture this data and analyse this data into useful information for the specific organisation activities because determining relevant data is a key to delivering value of information. In this paper, we describe big data in information spectrum to identify relevant data from large collection of big data to assist information professionals with useful information for decision-making process. We illustrate the relationship between big data and information spectrum using an ontology. Case study is applied using data from the World Bank. The results from the case study demonstrate how we incorporate big data and information spectrum using an ontology to provide a platform to extra value from large datasets.
    Keywords: big data; information professionals; information spectrum; ontologies; organisational goals; the World Bank.
    DOI: 10.1504/IJDS.2018.10017546
     
  • A review on propagation of secure data, prevention of attacks and routing in mobile ad-hoc networks (MANETs)   Order a copy of this article
    by Gautam M. Borkar, A.R. Mahajan 
    Abstract: Wireless communication is considered as a significant part in our modern innovation for transmitting the packets from source node to destination node. In the developing current situation of wireless communications mobile ad-hoc network (MANET) assumes a major part. In this paper, we have built up a definite review about the algorithms and systems utilised for fathoming the different issues such as security, authentication and routing. We have clarified three different classifications of issues that happen during broadcasting the packets by contrasting each and the past advancements in this paper. To acquire precise solutions to issues such as authentication, protection and security a vast number of protocols, routing strategy and algorithms have been utilised, however, it is exceptionally testing to discover the ideal and proficient technique that can be utilised internationally. In this paper, we have displayed an overview of different existing procedures and afterward basically investigated the work done by the different scientists in the field of MANETs.
    Keywords: wireless networks; MANET; mobile ad-hoc network; communication.
    DOI: 10.1504/IJDS.2018.10017548