APPLICATION OF BICLUSTERING TECHNIQUE IN MACHINE MONITORING

Author :  Marcin Michalak 

Affiliation :  Silesian University of Technology

Country :  Poland

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

Nowadays we can observe the change of the structure of energy resources, which leads to the increasing fraction of a renewable energy sources. Traditional underground coal mining loses its significance in a total but there are countries, including Poland, which economy is still coal based. A decreasing coal resources imply an exploitation a becoming harder accessible coal beds what is connected with the increase of the safety of the operation. One of the most important technical factor of the safety of underground coal mining is the diagnostic state of a longwall powered roof support. It consists of dozen (or hundreds) of units working in a row. The diagnostic state of a powered roof supports depends on the diagnostic state of all units. This paper describes the possibility of unit diagnostic state analysis based on the biclustering methods.

Keyword :  Biclustering, Machine Monitoring, Machine Diagnosis

For More Details :  https://airccj.org/CSCP/vol6/csit64822.pdf

A TAXONOMY FOR TOOLS, PROCESSES AND LANGUAGES IN AUTOMOTIVE SOFTWARE ENGINEERING

Author :  Florian Bock

Affiliation :  Friedrich-Alexander-University

Country :  Germany

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract

Within the growing domain of software engineering in the automotive sector, the number of used tools, processes, methods and languages has increased distinctly in the past years. To be able to choose proper methods for particular development use cases, factors like the intended use, key-features and possible limitations have to be evaluated. This requires a taxonomy that aids the decision making. An analysis of the main existing taxonomies revealed two major deficiencies: the lack of the automotive focus and the limitation to particular engineering method types. To face this, a graphical taxonomy is proposed based on two well-established engineering approaches and enriched with additional classification information. It provides a self-evident and -explanatory overview and comparison technique for engineering methods in the automotive domain. The taxonomy is applied to common automotive engineering methods. The resulting diagram classifies each method and enables the reader to select appropriate solutions for given project requirements.

Keyword :  Software Engineering, Processes & Tools & Languages, Comparison, Taxonomy, Classification

For More Details :  https://airccj.org/CSCP/vol6/csit64821.pdf

ADVANCED CLOUD PRIVACY THREAT MODELING

Author :  Ali Gholami

Affiliation :  KTH Royal Institute of Technology

Country :  Sweden

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract

Privacy-preservation for sensitive data has become a challenging issue in cloud computing. Threat modeling as a part of requirements engineering in secure software development provides a structured approach for identifying attacks and proposing countermeasures against the exploitation of vulnerabilities in a system. This paper describes an extension of Cloud Privacy Threat Modeling (CPTM) methodology for privacy threat modeling in relation to processing sensitive data in cloud computing environments. It describes the modeling methodology that involved applying Method Engineering to specify characteristics of a cloud privacy threat modeling methodology, different steps in the proposed methodology and corresponding products. We believe that the extended methodology facilitates the application of a privacypreserving cloud software development approach from requirements engineering to design.

Keyword :  Threat Modeling, Privacy, Method Engineering, Cloud Software Development

For More Details  :  https://airccj.org/CSCP/vol6/csit64820.pdf

THE PERCEPTIONS OF AGILE METHODOLOGY IN SOUTH AFRICA

Author :  Thierry Mbah Mbelli

Affiliation :  Deloitte Digital, Woodmead, Johannesburg

Country :  South Africa

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract

Agile methodology was introduced in the mid 90’s while the agile manifesto was adopted in 2001. The rationale behind the introduction of the agile methodology was to uncover better ways of developing software that will meet the user’s expectation in an iterative controlled manner. With technological explosion and rift competition for market share, user experience and satisfaction can only be achieved through proper communication between stakeholders and innovative ways of doing things. Doing things differently is what the agile methodology brought. Despite the existence of this methodology for over 20 years now, South African software industry is only starting to realize its existence with a lot of companies jumping into the bandwagon. This paper presents the results of an empirical research of how the South African software industry perceive the methodology.

Keyword :  Agile methodology, Software crisis, Agile manifesto, Scrum, Extreme programming

For More Details :  https://airccj.org/CSCP/vol6/csit64819.pdf

NEAR-REAL-TIME PARALLEL ETL+Q FOR AUTOMATIC SCALABILITY IN BIGDATA

Author :  Pedro Martins

Affiliation :  University of Coimbra

Country :  Portugal

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract

In this paper we investigate the problem of providing scalability to near-real-time ETL+Q (Extract, transform, load and querying) process of data warehouses. In general, data loading, transformation and integration are heavy tasks that are performed only periodically during small fixed time windows. We propose an approach to enable the automatic scalability and freshness of any data warehouse and ETL+Q process for near-real-time BigData scenarios. A general framework for testing the proposed system was implementing, supporting parallelization solutions for each part of the ETL+Q pipeline. The results show that the proposed system is capable of handling scalability to provide the desired processing speed.

Keyword :  Scalability, ETL, freshness, high-rate, performance, parallel processing, distributed systems, database, load-balance, algorithm

For More Details  :  https://airccj.org/CSCP/vol6/csit64818.pdf

COMBINED CLASSIFIERS FOR TIME SERIES SHAPELETS

Author :  Ivan S. Mitzev

Affiliation :  Mississippi State University

Country :  United States

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract

Time-series classification is widely used approach for classification. Recent development known as time-series shapelets, based on local patterns from the time-series, shows potential as highly predictive and accurate method for data mining. On the other hand, the slow training time remains an acute problem of this method. In recent years there was a significant improvement of training time performance, reducing the training time in several orders of magnitude. This work tries to maintain low training time- in the range from several second to several minutes for datasets from the popular UCR database, achieving accuracies up to 20% higher than the fastest known up to date method. The goal is achieved by training small 2,3-nodes decision trees and combining their decisions in pattern that uniquely identifies incoming time-series.

Keyword :  Data mining, Time-series shapelets, Combining classifiers

For More Details  :  https://airccj.org/CSCP/vol6/csit64816.pdf

A SWITCHED-ANTENNA NADIR-LOOKING INTERFEROMETRIC SAR ALTIMETER FOR TERRAIN-AIDED NAVIGATION

Author :  Inchan Paek

Affiliation :  PGM Image Sensor Centre, Hanwha Thales

Country :  Korea

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

Conventional terrain-aided navigation (TAN) technique uses an altimeter to locate the position of an aerial vehicle. However, a major problem with a radar altimeter is that its beam (or pulse) footprint on the ground could be large, and therefore the nadir altitude cannot be estimated accurately. To overcome this difficulty, one may use the nadir-looking synthetic aperture radar (SAR) technique to reduce the along-track beam width, while the cross-track ambiguity is resolved with the interferometry technique. However, the cross-track resolution is still far from satisfactory, because of the limited aperture size of antennas. Therefore, the usual three-antenna array cannot resolve multiple terrain points in a same range bin, effectively. In this paper, we propose a technique that can increase the cross-track resolution using a large number of antennas, but in a switched fashion, not raising hardware cost.

Keyword :  TAN, SAR, Altimeter, Switched Array

For More Details  :  https://airccj.org/CSCP/vol6/csit64814.pdf

OPTIMIZATION IN ENGINE DESIGN VIA FORMAL CONCEPT ANALYSIS USING NEGATIVE ATTRIBUTES

Author :  Rodríguez-Jiménez

Affiliation :  Universidad de Málaga

Country :  Spain

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract 

There is an exhaustive study around the area of engine design that covers different methods that try to reduce costs of production and to optimize the performance of these engines. Mathematical methods based in statistics, self-organized maps and neural networks reach the best results in these designs but there exists the problem that configuration of these methods is not an easy work due the high number of parameters that have to be measured. In this work we extend an algorithm for computing implications between attributes with positive and negative values for obtaining the mixed concepts lattice and also we propose a theoretical method based in these results for engine simulators adjusting specific and different elements for obtaining optimal engine configurations.

Keyword :  Nowledge Discovery, Formal Concept Analysis, Negative Attributes, Attribute Implications ,Engine Design

For More Details :  https://airccj.org/CSCP/vol6/csit64815.pdf

A SWITCHED-ANTENNA NADIR-LOOKING INTERFEROMETRIC SAR ALTIMETER FOR TERRAIN-AIDED NAVIGATION

Author :  Inchan Paek

Affiliation :  PGM Image Sensor Centre, Hanwha Thales, Kyunggi-do

Country :  Korea

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

Conventional terrain-aided navigation (TAN) technique uses an altimeter to locate the position of an aerial vehicle. However, a major problem with a radar altimeter is that its beam (or pulse) footprint on the ground could be large, and therefore the nadir altitude cannot be estimated accurately. To overcome this difficulty, one may use the nadir-looking synthetic aperture radar (SAR) technique to reduce the along-track beam width, while the cross-track ambiguity is resolved with the interferometry technique. However, the cross-track resolution is still far from satisfactory, because of the limited aperture size of antennas. Therefore, the usual three-antenna array cannot resolve multiple terrain points in a same range bin, effectively. In this paper, we propose a technique that can increase the cross-track resolution using a large number of antennas, but in a switched fashion, not raising hardware cost.

Keyword :  TAN, SAR, Altimeter, Switched Array

For More Details :  https://airccj.org/CSCP/vol6/csit64814.pdf

OPTIMAL BEAM STEERING ANGLES OF A SENSOR ARRAY FOR A MULTIPLE SOURCE SCENARIO

Author :  Sanghyouk Choi

Affiliation :  Department of Electrical Engineering, KAIST, Daejeon

Country :  Korea

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract

We present the gradient and Hessian of the trace of the multivariate Cramér-Rao bound (CRB) formula for unknown impinging angles of plane waves with non-unitary beamspace measurements,. These gradient and Hessian can be used to find the optimal beamspace transformation matrix, i.e., the optimum beamsteering angles, using the Newton-Raphson iteration. These trace formulas are particularly useful to deal with the multiple source senario. We also show the mean squred error (MSE) performance gain of the optimally steered beamspace measurements compared with the usuall DFT steered measurements, when the angle of arrivals (AOAs) are estimated with stochastic maximum likelihood (SMLE) algorithm.

Keyword :  Cramér-Rao bound, beamspace transformation, correlated noise, DFT beams, subarray formation

For More Details :  https://airccj.org/CSCP/vol6/csit64813.pdf

A MODEL BASED ON SENTIMENTS ANALYSIS FOR STOCK EXCHANGE PREDICTION - CASE STUDY OF PETR4, PETROBRAS, BRAZIL

Author :  Milson L. Lima

Affiliation :  Federal University of Maranhão

Country :  Brazil

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

Predicting the behavior of shares in the stock market is a complex problem, that involves variables not always known and can undergo various influences, from the collective emotion to high-profile news. Such volatility, can represent considerable financial losses for investors. In order to anticipate such changes in the market, it has been proposed various mechanisms to try to predict the behavior of an asset in the stock market, based on previously existing information. Such mechanisms include statistical data only, without considering the collective feeling. This article, is going to use natural language processing algorithms (LPN) to determine the collective mood on assets and later with the help of the SVM algorithm to extract patterns in an attempt to predict the active behavior. Nevertheless it is important to note that such approach is not intended to be the main factor in the decision making process, but rather an aid tool, which combined with other information, can provide higher accuracy for the solution of this problem.

Keyword :  Sentiment Analysis, Twitter, Prediction of Stock Exchanges

For More Details :  https://airccj.org/CSCP/vol6/csit64812.pdf

RELIABILITY EVALUATION OF SOFTWARE ARCHITECTURE STYLES

Author :  Gholamreza Shahmohammadi

Affiliation :  Olum Entazami Amin University

Country :  Iran

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

Abstract

In process of software architecture design, different decisions with system-wide impacts are made. An important decision of design stage is the selection of appropriate software architecture style. Since quantitative impacts of styles on quality attributes have not been studied yet, their application is not systematic. Since Reliability is one of the essential quality requirements of software systems, especially for life critical ones, one of the main criteria in choosing architecture style of these systems is high reliability. The goal of this study is to quantify the impact of architecture styles on software reliability that is desired quality of life critical software. We evaluate styles through reliability block diagram method. First, the reliability equation of each architectural style was computed using of Reliability block diagram approach. Then, reliability rank of architectural styles is computed by setting of the number of effective components in a transaction parameter in reliability equation of architectural styles. The main innovation of this article is quantification of impact of styles on software reliability that is essential for style selection.

Keyword :  Software Architecture, Software Architecture Style Evaluation, Reliability block diagram

For More Details :  https://airccj.org/CSCP/vol6/csit64811.pdf

AN ADVANCED TOOL FOR MANAGING FUZZY COMPLEX TEMPORAL INFORMATION

Author :  Aymen Gammoudi

Affiliation :  LARODEC/ISGT, 92, Boulevard 9 Avril 1938, 1007 Tunis

Country :  Tunisia

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

Many real-life applications need to handle and manage time pieces of information. Allen temporal relations are one of the most used and known formalisms for modelling and handling temporal data. This paper discusses a novel idea to introduce some kind of flexibility in defining such relations between two fuzzy time intervals. The key concept of this approach is a fuzzy tolerance relation conveniently modelled. Tolerant Allen temporal relations are then defined using the dilated and the eroded intervals of the initial fuzzy time intervals. By leveraging some particular fuzzy indices to compare two fuzzy time intervals, this extension of Allen relations is integrated in the Fuzz-TIME system developed in our previous works.

Keyword :  Temporal Relations, Fuzzy Time Intervals, Tolerance Relation, Dilation, Erosion, Temporal Databases.

For More Details :  https://airccj.org/CSCP/vol6/csit64810.pdf

HOL, GDCT AND LDCT FOR PEDESTRIAN DETECTION

Author :  Sanaa Tayb

Affiliation :  Ibn Tofail University

Country :  Morocco

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

In this paper, we present and analyze different approaches implemented here to resolve pedestrian detection problem. Histograms of Oriented Laplacian (HOL) is a descriptor of characteristic, it aims to highlight objects in digital images, Discrete Cosine Transform DCT with its two version global (GDCT) and local (LDCT), it changes image's pixel into frequencies coefficients and then we use them as a characteristics in the process. We implemented independently these methods and tried to combine it and used there outputs in a classifier, the new generated classifier has proved it efficiency in certain cases. The performance of those methods and their combination is tested on most popular Dataset in pedestrian detection, which are INRIA and Daimler.

Keyword :  Pedestrian detection, HOL, DCT local, DCT Global, Classification, SVM, Inria Person, Daimler.

For More Details :  https://airccj.org/CSCP/vol6/csit64809.pdf

FAMILY OF 2-SIMPLEX COGNITIVE TOOLS AND THEIR APPLICATIONS FOR DECISION-MAKING AND ITS JUSTIFICATIONS

Author : Yankovskaya Anna

Affiliation : Tomsk State University of Architecture and Building, Tomsk, Russia Tomsk State University of Control Systems and Radioelectronics, Tomsk

Country : Russia

Category : Computer Science & Information Technology

Volume, Issue, Month, Year : 6, 7, November, 2016

ABSTRACT

Urgency of application and development of cognitive graphic tools for usage in intelligent systems of data analysis, decision making and its justifications is given. Cognitive graphic tool “2-simplex prism" and examples of its usage are presented. Specificity of program realization of cognitive graphics tools invariant to problem areas is described. Most significant results are given and discussed. Future investigations are connected with usage of new approach to rendering, cross-platform realization, cognitive features improving and expanding of n-simplex family.

Keyword : Cognitive graphics, 2-simplex, 2-simplex prism, decision-making, decision justification, education, e-learning systems, psychosomatic disorders, cognitive modelling

For More Details  : https://airccj.org/CSCP/vol6/csit64807.pdf

REFERENCE ARCHITECTURE FOR SMAC SOLUTIONS

Author :  Shankar Kambhampaty

Affiliation :  Computer Science Corporation (CSC)

Country :  India

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

Web and internet computing is evolving into a combination of social media, mobile, analytics and cloud (SMAC) solutions. There is a need for an integrated approach when developing solutions that address web scale requirements with technologies that enable SMAC solutions. This paper presents an architecture model for the integrated approach that can form the basis for solutions and result in reuse, integration and agility for the business and IT in an enterprise.

Keyword :  Architecture, Model, Web-scale, Social Media, Mobile, Analytics & Cloud Computing

For More Details :  https://airccj.org/CSCP/vol6/csit64804.pdf

SIMILARITY ANALYSIS OF DNA SEQUENCES BASED ON THE CHEMICAL PROPERTIES OF NUCLEOTIDE BASES, FREQUENCY AND POSITION OF GROUP MUTATIONS

Author :  Fatima KABLI

Affiliation :  Department of Computer Science Tahar MOULAY University of Saïda

Country :  Algeria

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

The DNA sequences similarity analysis approaches have been based on the representation and the frequency of sequences components; however, the position inside sequence is important information for the sequence data. Whereas, insufficient information in sequences representations is important reason that causes poor similarity results. Based on three classifications of the DNA bases according to their chemical properties, the frequencies and average positions of group mutations have been grouped into two twelve-components vectors, the Euclidean distances among introduced vectors applied to compare the coding sequences of the first exon of beta globin gene of 11 species.

Keyword :  DNA sequence, chemical proprieties, DNA bases, position, frequency, group mutations.

For More Details  :  https://airccj.org/CSCP/vol6/csit64802.pdf

INFRASTRUCTURE CONSOLIDATION FOR INTERCONNECTED SERVICES IN A SMART CITY USING CLOUD ENVIRONMENT

Author :  Jorge F Hernandez

Affiliation :  Department of Information Systems, CUCEA, UDG Guadalajara

Country :  Mexico

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 1, November, 2016

ABSTRACT

 Sustainability, appropriate use of natural resources and providing a better quality of life for citizens has become a prerequisite to change the traditional concept of a smart city. A smart city needs to use latest generation Information Technologies, IT, and hardware to improve services and data, to offer to create a balanced environment between the ecosystem and inhabitants. This paper analyses the advantages of using a private cloud architecture to share hardware and software resources when it is required. Our case study is Guadalajara, which has seven municipalities and each one monitor’s air quality. Each municipality has a set of servers to process information independently and consists of information systems for the transmission and storage of data with other municipalities. We analysed the behaviour of the carbon footprint during the years 1999-2013 and we observed a pattern in each season. Thus our proposal requires municipalities to use a cloud-based solution that allows managing and consolidating infrastructure to minimize maintenance costs and electricity consumption to reduce carbon footprint generated by the city.

Keyword :  Smart Cities; Cloud Architectures; Cost Estimation; City Services

For More Details  :  https://airccj.org/CSCP/vol6/csit64801.pdf

E- LEARNING IN NIGERIA : CURRENT IMPLEMENTATIONS AND CHALLENGES

Author :  Oluwatosin Temitope Aderinola

Affiliation :  The Federal University of Technology

Country :  Nigeria

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 5, November, 2016

ABSTRACT

E-learning is a concept which came to limelight about two decades ago in Nigeria. It has gone through several metamorphoses since then ranging from open skepticism to acceptance. It was accepted by most people because the percentage of Conventional Universities in Nigeria to the number of candidates seeking admission into these Universities were getting small every year and such Conventional Universities cannot cope with the pressure from the candidates. This is the main reason why many people embraced E- learning as option and a welcome supplement to normal university learning. This study is designed to evaluate the current implementation of Elearning in Nigeria and the current challenges militating against the full implementation of Elearning as an option in Nigeria.

Keyword :  E-learning, Conventional Universities, Candidates.

For More Details :  https://airccj.org/CSCP/vol6/csit65212.pdf

AUTOMATIC TRANSLATION OF ARABIC SIGN TO ARABIC TEXT (ATASAT) SYSTEM

Author :  Abdelmoty M.Ahmed

Affiliation :  Faculty of Engineering /Al-Azhar University

Country :  Egypt

Category :  Computer Science & Information Technology

Volume, Issue, Month, Year :  6, 5, November, 2016

ABSTRACT

Sign language continues to be the preferred tool of communication between the deaf and the hearing-impaired. It is a well-structured code by hand gesture, where every gesture has a specific meaning, In this paper has goal to develop a system for automatic translation of Arabic Sign Language. To Arabic Text (ATASAT) System this system is acts as a translator among deaf and dumb with normal people to enhance their communication, the proposed System consists of five main stages Video and Images capture, Video and images processing, Hand Signs Construction, Classification finally Text transformation and interpretation, this system depends on building a two datasets image features for Arabic sign language gestures alphabets from two resources: Arabic Sign Language dictionary and gestures from different signer's human, also using gesture recognition techniques, which allows the user to interact with the outside world. This system offers a novel technique of hand detection is proposed which detect and extract hand gestures of Arabic Sign from Image or video, in this paper we use a set of appropriate features in step hand sign construction and classification of based on different classification algorithms such as KNN, MLP, C4.5, VFI and SMO and compare these results to get better classifier.

Keyword :  Sign language, Hand Gesture, Hand Signs Construction, gesture recognition, hand detection

For More Details :  https://airccj.org/CSCP/vol6/csit65211.pdf