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Journal of
Theoretical and Applied Information Technology
November 2020 | Vol. 98
No.22 |
Title: |
INFLUENTIAL ELEMENTS OF SELECTION OUTSOURCING PROVIDER IN IT GOVERNANCE |
Author: |
GLORY UREKWERE ORLU, NORAINI CHE PA, RODZIAH BINTI ATAN, HAZLINA BT HAMDAN |
Abstract: |
Over the years, decision outsourcing IT Provider selection in the software
industries is rapidly spreading globally. Based on this, organizations outsource
their non-core project (software development) to the IT Provider in order to
achieve their strategic goals. However, organizations still face challenges in
outsourcing provider selection process which lead them in making mistakes of
choosing inappropriate IT Provider for their stipulated project. This paper
investigates on the challenge faced in outsourcing IT Provider selection process
and presents selected influential elements that can support IT practitioners.
This study considered three sections during the investigation of related
elements for outsourcing provider selection process. In section 1, thirty
elements were identified, hence were screened to ascertain their justification
from prior researches and suitability in this study. In section 2, based on the
screened process undertaken, eleven elements were compared together in order to
ascertain the level of preceding researches support towards elements for
outsourcing provider in IT governance services, thereafter, in section 3, only
six influential elements were considered to be highly supported by prior
researches and this was taken for justification in this study. Since human
judgment is imprecise and vague, the application of the selected influential
elements considered in this study serves in solving the uncertainty and
complexity in decision outsourcing provider selection process. |
Keywords: |
Decision-making; Outsourcing; Provider Selection Practices; IT Governance. |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
ENERGY-LEAKS IN ANDROID APPLICATION DEVELOPMENT: PERSPECTIVE AND CHALLENGES |
Author: |
MUHAMMAD UMAIR KHAN, SHANZA ABBAS, SCOTT UK-JIN LEE, ASAD ABBAS |
Abstract: |
Number of mobile devices are increasing, and popularity of Android OS supported
devices is more than other, and Android apps dominated the mobile apps market.
These devices have limited resources (CPU, Memory, and Power, etc.). Energy
consumption in mobile devices is an important factor to consider when developing
an app. There is no such official guide that help developer to build a less
energy-hungry app or discover energy leaks in the development phase. This paper
will review different types of energy leaks in Android apps, how these leaks
effect the energy consumption of the device. We will discuss how these energy
leaks can be avoided at the development phase |
Keywords: |
Energy Leaks, Code Smell, Android Apps, Energy Consumption, Mobile Apps, Program
Analysis |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
DEEP LEARNING FOR DOCUMENT CLUSTERING: A SURVEY, TAXONOMY AND RESEARCH TREND |
Author: |
LUBNA GABRALLA, HARUNA CHIROMA |
Abstract: |
Information is stored in several forms such as pictures, web pages, sound and
video, but 80% is stored as a text. Quick searching for a specific text document
depends totally on the accuracy of the classification of the document's subject
with a similar group of documents. This process is called documents clustering.
Recently, deep learning techniques have achieved distinguish results in solving
the problems facing documents clustering such as complex semantics and high
dimensionality. This paper aims to examines a comprehensive review related to
documents clustering, and survey the recent work in document clustering using
deep learning methods. The proposed taxonomy represents knowledge that helps
researchers to understand and follow up previous works in this area, and
developing or creating new methods and a comparative analysis was made between
popular dataset, performance metrics, deep learning frameworks and library used
in deep learning clustering documents. |
Keywords: |
Clustering, Deep Learning, Documents, Texts |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
OPTIFOG: OPTIMIZATION OF HETEROGENEOUS FOG COMPUTING FOR QOS IN HEALTH CARE |
Author: |
PRATIK KANANI, DR. MAMTA PADOLE |
Abstract: |
A patients life can be saved if it is possible to make quicker decisions based
on faster processing of real-time health care data, such as ECG processing. To
achieve faster decision making, contemporary health care applications use cloud
computing for such data. When cloud computing is used, data transmission
deferrals may cause delays in the decision-making process. To overcome this, Fog
Computing is used. Fog Computing saves energy, bandwidth and prevents
transmission latencies but, lacks in computing power as compared to Cloud
Computing. To enhance the computing power of the Fog node, a Cluster of
Raspberry Pi having heterogeneous configurations can be used. In Health Care
applications the Fog Computing performance can be assessed by measuring the time
elapsed between the generation of the health care data and decision-making. In
this paper, ECG signal analysis is taken as a processing job in Fog Computing.
Dispy is used to facilitate the scalability and parallel data processing on a
Cluster of Raspberry Pi used for Fog Computing, to enable faster decision
making. Further, the performance of the Raspberry Pi cluster-systems using dispy
are analyzed and optimized step by step based on different parameters. The first
parameter is data transmission time which is improvised by minimizing network
overheads. Other optimization parameters like CPU usage, number of cores,
response time and available memory space, these parameters are considered and
varied, to assess the performance of Heterogeneous Raspberry Pi cluster. Based
on the results obtained, a novel optimization approach “OptiFog” is proposed to
achieve faster computation in worst-case scenarios by varying and assigning jobs
to the nodes to measure performance parameters in Distributed Fog Computing.
Based on the obtained results “OptiFog” assures best possible improvement in the
performance of the Distributed Fog Computing environment. |
Keywords: |
Dispy, Distributed Fog Computing, ECG Analytics, Heterogeneous Fog Computing,
Optifog, Optimization In Fog Computing, Raspberry Pi Cluster |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
DEVELOPMENT OF INDONESIAN TALKING-HEAD ANIMATIONS ON HUMANOID AND NON-HUMANOID
CHARACTERS USING THE RETARGETING PROCESS OF FACIAL MOTION CAPTURE DATA |
Author: |
ARIPIN, MUHAMMAD NASRULLOH |
Abstract: |
The difference in the facial structure of the human and the 3D virtual model
(Non-Humanoid) is a challenge in the talking-head animation development. This
difference resulted in the talking-head animation of the 3D virtual model that
does not match with the talking-head animation of the human models. One example
is the difference in the mouth width of a human model and the 3D virtual model.
This research aims to develop the talking-head animation on several 3D virtual
characters based on the facial motion capture (MoCap) data. The facial MoCap
data are recorded using MoCap technology. A radial basis function (RBF) method
is used to process retargeting of facial MoCap data on several 3D virtual
characters. This method is used to map the feature points from the face source
to the target face. The experimental results showed that the talking-head
animation on several 3D virtual models can imitate the mouth movement of an
actor. The result of the space transformation on tortoise face model has a
standard deviation of 0.028261. The value of a relatively small standard
deviation shows that the talking-head animation on a tortoise face model
corresponds to the mouth movement of an actor. We also evaluate the talking-head
animation quality on 3D virtual characters using MOS (Mean Opinion Score)
method. The result of MOS calculation shows that the talking-head animation on
several 3D virtual characters is 4.133. It means that the 3D virtual characters
can imitate mouth movements of an actor. |
Keywords: |
Talking-Head Animation, Retargeting Process, 3D Virtual Characters, Facial MoCap
Data, Radial Basis Function |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
FACTORS ASSOCIATED WITH THE ADOPTION OF MOBILE-BLENDED LEARNING TO DEVELOP
CRITICAL THINKING SKILLS IN NIGERIAN BUSINESS EDUCATION UNDERGRADUATE STUDENTS |
Author: |
AUGUSTINE AGBI, SUPANEE SENGSRI |
Abstract: |
The standard of the Nigerian educational system has continued to witness a
decline over the years at all levels, contributing to the high rate of
unemployment among graduates in the country. Jobs in the 21st century require
employees’ abilities to analyse, evaluate, and synthesize knowledge to
creatively solve problems and these abilities are increasingly necessary for
survival in the modern world. Mobile-blended learning allows sufficient time
during its face-to-face components to effectively engage learners with
problem-solving tasks that encourage their cognitive development, rather than
exposing them to learning experiences that are fraught with a repetitive
accumulation of facts and knowledge only. The main objective of this study was
to investigate the factors associated with the effective adoption of
mobile-blended learning for critical thinking enhancement. A cross-sectional
study that used survey and documentary research was conducted among 120 business
educators from three states of the thirty-six states of Nigeria, A validated
self-administered questionnaire was used to collect data, which were analysed
using multiple regression method. The study revealed that teachers’
participation in the process of deciding to adopt innovation, competency, mobile
instructional content, and mobile-blended learning orientation were
significantly associated with effective adoption. This suggests that when
adopting a mobile-blended learning approach, the focus should be centred on
teachers’ participation and competency as well as mobile content and
orientation. |
Keywords: |
Mobile-Blended Learning, Critical Thinking Skills, Problem-Solving |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
PIPELINE AND DEEP LEARNING APPROACH FOR NLIDB: A COMPARATIVE STUDY |
Author: |
SHANZA ABBAS, MUHAMMAD UMAIR KHAN, SCOTT UK-JIN LEE, ASAD ABBAS |
Abstract: |
Databases are integral part of current world’s scenario of rich technology.
Greater amount of the data in the world is stored in the databases. That amount
of data storages can be utilized for various purposes in data science world.
Besides potential usage and benefits of available data amounts, the requirement
of formal language to access the databases is a huge hurdle. Structured Query
language (SQL) is one of such formal languages to access the database. Besides
its impact and powerful as a language it is not a common knowledge. Therefore,
domain experts of some particular databases cannot access their data freely and
easily. Web interfaces to access that data has their own limitation and do not
fulfil the purpose to the maximum of the potential of data. Natural Language
Interface to Database (NLIDB) system is natural solution for such problems. Text
to SQL task in NLIDB system is being experimented with since 70s. Previously it
was based on integrated methods and techniques from Natural Language Processing
(NLP) and Data Science areas, those integrated frameworks generally known as
pipeline methods. Recently, machine learning showed promising performance for
the solutions to semantic problems. Which is why, deep learning had been adopted
for text to SQL task as well. Currently NLIDB systems research is going on with
both of the approaches of pipeline methods and deep learning methods in
parallel. It is important at this time to analyze the latest work with both
approaches and compare and identify their unique challenges and issues as well
as findings and potential of both approaches for the NLIDB systems. In this
paper, a comparative analysis is presented to find out the achievements and
issues of NLIDB with pipeline methods and with deep learning methods regarding
each of them. |
Keywords: |
Structured Query language, Natural Language Processing, Natural Language
Interface to Databas |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
A PROPOSED MODEL TO PREDICT AUTO INSURANCE CLAIMS USING MACHINE LEARNING
TECHNIQUES |
Author: |
SHADY ABDELHADI, KHALED ELBAHNASY, MOHAMED ABDELSALAM |
Abstract: |
One of the main challenges facing the insurance companies is to determine the
proper insurance premium for each risk represented by customers. Risk differs
widely from clients to another, and a Careful understanding of various risk
factors assists predict the likelihood of insurance claims based on historical
data, Real-world datasets often have missing values, can cause bias in results.
the most widely adopted methods for dealing with missing data is to remove
observations having missing values, perform a complete case analysis (CCA) and
single imputation such as average. these approaches have the disadvantages
represent in loss of precision and biased. The main objective of the paper is to
build a precise model to predict car insurance claims through machine learning
techniques. with a focus on advanced statistical methods and machine learning
algorithms that are the most suitable method for handling missing values. we
Used available datasets through Kaggle which consists of 12 variables and 30240
cases, the research was carried out by using Artificial Neural Network (ANN),
Decision Tree (DT), Naïve Bayes classifiers, and XGBoost to develop the
prediction model. The experimental results showed that the model obtained
acceptable results The XGBoost model and Resolution Tree achieved the best
accuracy among the four models, with an accuracy of 92.53% and 92.22%,
respectively. |
Keywords: |
Machine Learning; Prediction Model; Missing Data; Auto Insurance Claims |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
SEMANTIC REPRESENTATION OF MUSIC DATABASE USING NEW ONTOLOGY-BASED SYSTEM |
Author: |
AHMED M. DAOUD , KHALID M. HOSNY, EHAB R. MOHAMED |
Abstract: |
The Semantic Web is suffering from a lack of tools used to facilitate its users’
work when extracting structured data. The development of a system that
facilitates the extraction of data from databases and converts them into useful
information is of great interest. In this paper, a new ontology-based method is
proposed to extract the structured data from a database based on a target
ontology. The main focus here is on dealing with music databases because of
their popularity on the web. Since the Semantic Web built upon reusing existing
ontologies, this system is going to use the existing musical ontology defined in
the Music Ontology Specification. This specification provides the concepts and
properties used to describe music besides other ontologies that could use in
conjunction with it, such as (foaf, dc, timeline, event, etc.). The resulting
music data, in RDF format, can be published and linked with existing musical
data on the web. This method contributes to the music web of data and allows the
Semantic Web clients to access detailed structured information about musical
data easily. |
Keywords: |
Semantic Web (SW), Relational Database (RDBs), Resource Description Framework
(RDF), Music Ontology, Music Database |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
FEATURE SELECTION AND CLASSIFICATION OF SPEECH DATASET FOR GENDER
IDENTIFICATION: A MACHINE LEARNING APPROACH |
Author: |
RIZWAN REHMAN, KAUSTUVMONI BORDOLOI, KANKANA DUTTA3, NOMI BORAH, PRIYAKHI
MAHANTA |
Abstract: |
In speech analysis, gender identification is one of the most complex tasks.
Gender can be traced from the acoustic parameters like formants (F1, F2, F3, F4)
or the pitch (F0). Therefore it is very important to identify which feature or
features can classify the dataset efficiently in terms of a male and female
speakers. This paper is an attempt to classify the dataset more accurately using
fewer features i.e. among F0, F1, F2, F3, and F4. For the feature selection, the
Fisher score algorithm is used to find out the most discriminative feature that
can be used for the classification of the gender from the speech data set. Then
to cross-validate the result obtained using the Fisher score algorithm we have
applied the Tree-based algorithm. The results of both the algorithm comply with
each other as F0 or pitch is the most distinctive feature among all with both
the algorithms. Since the result of both the algorithm comply with each other we
have then performed the classification by applying logistic regression, KNN
classifier, SVM, and Decision tree algorithms. We have then evaluated and
compared the accuracy of each of the features using these classification
techniques. The finding of this study will provide the statistical means to
identify the best feature for gender identification from the acoustic
characteristic. |
Keywords: |
Feature Selection, Classification, Gender Identification, Statistical Methods |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
AN INTEGRATED APPROACH OF DYNAMIC TASK SCHEDULING OF DAG WITH DUAL MODE
PROCESSORS-USING MACHINE LEARNING TO OBTAIN OPTIMAL MAKE SPAN |
Author: |
PRASANT SINGH YADAV, P.K YADAV, SUNIL BHARTI |
Abstract: |
With increasing computing demand the need for tuned intelligence-based solutions
is most required. Most of the focus has been given by the researcher to the
scheduling of parallel tasks dynamically to more than one processor and in the
current scenario, it is more demandable. Although many DAG scheduling algorithms
are available but less focused on dynamic scheduling. Through our projected
paper we want to introduce the approach Dynamic task scheduling algorithm DTSA
for scheduling task at run time using DAG with an additional factor regarding
processor self-Reconfiguration Capacity, which is an important parameter of
distributed computing System. Through DTSA we want to sketch out an adaptive
task arrangement algorithm that gives the hybrid result of run-time scheduling
of DAG and adaptation of tenant configuration by the processor according to
computing needs. Finally, A DAG-based dynamic task arrangement with dependency
consideration between the tasks and with the use of machine learning (ML) for
self-reconfiguration of a processor is proposed for obtaining the optimal task
allocations with the optimal Makespan. |
Keywords: |
DAG, DTSA, LTA, TPC-W, CPU Self-Reconfiguration, Machine Learning. |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
AN EXPERIMENTAL STUDY: PERSONALIZED GAMIFED LEARNING BASED ON LEARNING STYLE |
Author: |
RASHA ALJABALI, NORASNITA AHMAD, AHMAD FADHIL YUSOF, SURAYA MISKON, NAZMONA MAT
ALI, SALAMATU MUSA |
Abstract: |
Numerous game related elements such as points, badges, leaderboard, and ranking
are utilized in educational context when motivation and engagement need to be
boosted. Undoubtedly, influencing students’ engagement has been reported as one
of the gamification’s pros. However, study the effects of certain game elements
on dissimilar types of students is recommended by several researchers.
Accordingly, a learning style is a vital factor in human learning process which
is considered as an important personalization parameter in several eLearning
tools. This research has used Felder-Silverman Learning Style Model (FSLSM) as
personalization parameter along with 10 game elements to propose a personalized
gamified learning model. A Design Science Research Approach (DSRA) has been
undertaken to examine the proposed model in improving the students’ scores in
Data Flow Diagram (DFD) lesson during class learning process. For validating the
proposed model, 50 Multiple Choice Questions for DFD web-based gamified
application has been developed. An experimental study using the application has
been conducted with 71 undergraduate students from School of Computing, Faculty
of Engineering, Universiti Teknologi Malaysia (UTM). Participants were divided
into two groups: experimental and control. Additionally, the gamification
application has two different modes: personalized mode (for experimental group)
and non-personalized mode (for control group). Data was collected from the
application database and perceived usefulness questionnaire. An independent
t-test has been used to compare means of scores between the groups. Result shows
that personalized gamified learning is an effective method in learning process,
as well as in boosting student perceived usefulness of the application. |
Keywords: |
Gamification, Learning Style, Personalized Learning |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
ONTOLOGY-BASED SEMANTIC INTEGRATION OF HETEROGENEOUS DATA SOURCES USING ONTOLOGY
MAPPING APPROACH |
Author: |
KITTIPHONG SENGLOILUEAN, ROMCHAT KHUNTONG |
Abstract: |
At present, educational institutions have developed their library database
systems, or used library package programs. Some educational institutions had
many libraries such as the university libraries, the faculty libraries, and the
department libraries. However, standards in developing and designing the library
systems were differently applied. These differences caused the problems when
sharing the link of data from many libraries. That was, it encountered the
problem of centralized semantic query because each library stored the same data,
but chose to use different vocabulary to describe the data. As there was no
common agreement or standard for describing data, it brought about the semantic
conflicts of synonyms and homonyms. In this paper, the ontology-based semantic
integration of heterogeneous data sources by using the ontology mapping approach
was implemented for solving such the problem. The results of the study revealed
that the architecture of the semantic integration of heterogeneous data sources
using the ontology mapping approach could effectively resolve the semantic
conflicts of linking the library data from various sources. Based on the
performance evaluation of the proposed architecture, it was found to be highly
effective with Precision, Recall, and F-measure, at 90.34%, 91.98%, and 91.15%,
respectively. |
Keywords: |
Ontology Mapping, Semantic Integration, Semantic Conflicts, Library Ontology |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
ANALYZING FACTORS AFFECTING SATISFACTION AND PURCHASE INTENTION TOWARDS MOBILE
AUGMENTED REALITY E-COMMERCE APPLICATIONS IN INDONESIA |
Author: |
STEFANIE LIU, TOGAR ALAM NAPITUPULU |
Abstract: |
The high internet economy value in Indonesia is supported by e-commerce, with
beauty products as one of the top spending categories. Nevertheless, the
majority of Indonesian women still prefer to buy beauty products at outlets. In
2019, augmented reality feature started to present in mobile e-commerce
applications and allows users to try the product virtually. This research aims
to analyze factors affecting satisfaction and purchase intention in mobile
augmented reality e-commerce applications in Indonesia. Quantitative method was
used in this research, with data collection through questionnaires. Data from
403 respondents were processed in SmartPLS 3.0 software. This research revels
that purchase intention was affected by satisfaction, trade off price and value,
perceived augmentation and perceived enjoyment. Meanwhile satisfaction is
affected by trade off price and value, perceived augmentation, perceived
usefulness, perceived enjoyment and system quality. |
Keywords: |
Augmented Reality, E-commerce, M-commerce, Purchase Intention, Satisfaction |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
FACTORS AFFECTING PURCHASE INTENTION ON TIX.ID MOBILE APP |
Author: |
EDWARD CHANDRA , TOGAR ALAM NAPITUPULU |
Abstract: |
Internet and smartphone nowadays have evolved, many people make use of it to do
online transaction. One of them is to purchase movie ticket through online.
TIX.ID itself is a mobile app that have a feature to buy movie tickets online.
In this case study, it has a purpose to know factors affecting purchase
intention on TIX.ID mobile app. Factors that has been used on this case study
are Perceived Ease of Use, Perceived Usefulness, Trust Security, Subjective Norm
and using Age as moderating variable to find out whether Age has affect on
connection between those variables with purchase intention. In this case study,
it uses quantitative method by using questionnaire that has been sent to
respondents as data source for this case study. From the questionnaire that has
been sent through social media, it received 451 respondents which the
respondents have a qualification to ever at least once to purchase movie tickets
through TIX.ID mobile app. Result from this case study is that factors affecting
purchase intention on TIX.ID mobile app are Perceived Ease of Use, Perceived
Usefulness, Security and Subjective Norm. |
Keywords: |
Online Movie Ticket, E-commerce, M-commerce, Purchase Intention, TIX.ID |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
PERFORMING A CONTENT VALIDITY: ESTABLISHING A RELIABLE INSTRUMENT TO MEASURE THE
INTENTION TO ADOPT CLOUD COMPUTING SOFTWARE AS A SERVICE IN PUBLIC ORGANISATION |
Author: |
HIBA JASIM HADI, MOHD ADAN OMAR, WAN ROZAINI SHEIK OSMAN, MOHAMMED FADHIL
IBRAHIM, MUKTAR HUSSAINI |
Abstract: |
Nowadays, cloud computing software as a service (CC-SaaS) has gained widespread
popularity and vast advantages in the information technology domain. However,
the adoption rates of CC-SaaS among organisations in developing countries are
inadequate and still not widely adopted. Many public organizations are still
lacking a broader understanding of adopting and utilizing CC-SaaS to facilitate
tasks and increase efficiency. This trend is developing countries is more
evident in Iraqi public organisations; thus, it highlighted the need to adopt
such technologies to be able to reduce the cost of IT infrastructure and provide
fast information accessibility. This paper's main objective is to develop an
instrument used to assess the possibilities of CC-SaaS intention to adopt more,
especially in Iraqi organisations. Also, to ensure the instrument's validity
developed to make sure they are adequate to determine the adoption and avoid the
meaningless and uninterpretable experimentation result for the intention to
adopt CC-SaaS in a public organization. The paper also describes a systematic
approach to assess the research instrument by employing a content validity index
for the proposed constructs. A panel of 12 experts was used to validate the
instrument through the quantitative (content validity) method, by Item-CVI
(I-CVI), Scale-level CVI (S-CVI), and the modified Kappa statistic. The result
shows high content validity for the items, and it also helped reduce and modify
some of the items. Thus, the results show a high level of trust in the
abilities, integrity, and benevolence of CC-SaaS providers will minimize the
Iraqi organization's security and privacy concerns and motivate them to acquire
the cloud service, as technological, organisational, environmental. Human
factors depicted in this paper are valid. |
Keywords: |
CC-SaaS, Questionnaire, Content Validity, I-CVI, and S-CVI |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
ANALYSIS OF STUDENT LEARNING HABITS FACTOR TOWARDS E-LEARNING EFFECTIVENESS IN
XYZ UNIVERSITY |
Author: |
HANS KRISTIAN, TOGAR ALAM NAPITUPULU |
Abstract: |
In an overall educational process, learning activities are the most important
activities. Along with the times, an innovation is needed in the learning
process. E-learning is a learning method that uses electronic media as teaching
material for students. At XYZ University, the use of e-learning is also applied
in their learning system. The purpose of this study was to determine the effect
of student study habits on the effectiveness of e-learning. The data were taken
from 157 online student respondents XYZ University who were taking a master
program and then analyzed using the smartPLS tool. It is known that the
influential variables are Delay Avoidance, Work Method, Self-Efficacy, and
Self-Directed Learning. The results of this study indicate that the Work Method
and Self-Directed Learning factors have a positive and significant effect on the
effectiveness of e-learning and can be considered to increase the effectiveness
of the e-learning learning system. |
Keywords: |
Delay Avoidance, Work Method, Self-Efficacy, Self-Directed Learning, E-Learning
Effectiveness |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
SENSING PERFORMANCE ANALYSIS OF AN INTERNET OF THINGS-BASED INTRUDER DETECTION
SYSTEM |
Author: |
ARKOM SUDRAM, WASANA BOONSONG |
Abstract: |
The Internet of Things (IoT) has become part of human life since it has made
interconnection among people and things together. IoT impacts a security because
affected an individual’s well-being. This paper contributes a performance
analysis of an intruder detection system based on IoT service network platform.
The IoT cycle of intruder monitoring/detection system considered are consists of
4 sections, which are 1) intruder monitoring section, 2) communication
network, 3) data processing unit and 4) user interface. Each section has its
different role but they work together seamlessly and efficiently. The proposed
intruder monitoring device system adopted the Ultrasonic and Passive Infrared
(PIR) Sensors. Both were tested the moving detection accuracy performance with
various distances in detecting a moving object. The findings were analyzed in
terms of percentages. NETPIE-IoT cloud server acts as an intermediary to
exchange information with other devices on the internet network. The statistical
package for the social sciences (SPSS) used for analyzing the experimental
results by comparison between the two their performances. The results showed
that the Ultrasonic and PIR sensors show different responses based on individual
tests. Both intruder sensors have a statistically significant differences in
percentages of moving detection accuracy with 99.94 (Std. Deviation = 0.113) and
99.56 (Std. Deviation = 0 .679) respectively. The Ultrasonic sensor was slowly
dropped, whilst the PIR sensor was slightly increased according the distance
variations. |
Keywords: |
IoT, Ultrasonic, PIR, NETPIE, SPSS |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
AN OVERVIEW OF DEEP LEARNING TECHNIQUES IN ECHOCARDIOGRAPHY IMAGE SEGMENTATION |
Author: |
MEHDI SAMIEIYEGANEH, PROFESSOR RAHMITA WIRZA BT O. K. RAHMAT, Dr. FATIMAH BINTI
KHALID, Dr. KHAIRUL AZHAR BIN KASMIRAN |
Abstract: |
Machine Learning (ML) has been a remarkable success in the last few years,
Sequential -Decision Making tasks are a main topic in ML, these are tasks based
on deciding, the sequence of actions from experience carry out in an environment
that is uncertain to achieve goals. these tasks cover so many ranges of
applications such as healthcare, robotic, finance and many more. The design and
extracting of features in ML were done based on defining (hand -crafting
features), which is a weak point for this model. Due to ML problem as well as
advances in computer hardware Machine Deep Learning (DL) has entered the field
of image processing. In fact, DL is a type of Function approximator. To solve ML
tasks Function approximator is required and this idea is core of ML. There are
many type of Function approximator such as, linear models, gaussian process,
support vector machine and decision tree. In this paper, considering the
importance of segmenting in medical images, we will review works that have
utilized DL methods, as well as our focus is based on Echocardiography Image
Segmentation. |
Keywords: |
Machine Learning, Deep Learning, Medical Image Segmentation, Echocardiography. |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
REAL-TIME WATER QUALITY MONITORING OF AQUACULTURE POND USING WIRELESS SENSOR
NETWORK AND INTERNET OF THINGS |
Author: |
WASANA BOONSONG1 , WIDAD ISMAIL, NAOKI SHINOHARA, SEVIA MAHDALIZA IDRUS SUTAN
NAMEH, SURYANI ALIFAH, KAMARUL HAFIZ KAMALUDIN, TONI ANWAR |
Abstract: |
Data monitoring with updated information is important and necessary in today’s
era of digital technology. This study proposes a smart water quality monitoring
(SWQM) system of aquaculture ponds that uses a Wireless Sensor Network (WSN) at
a radio frequency band of 900 MHz in an Internet of Things (IoT) platform. The
proposed system provides solution in the monitoring and death prevention of
aquatic animals in culture ponds. The important parameters studied in this
research are temperature, dissolved oxygen in water and potential Hydrogen (pH)
values. The information monitored using the proposed SWQM device is transmitted
to an operator through a cloud Internet platform via the router gateway. The
operator can utilize the tracked information data on a smart device to achieve
real-time monitoring. The data are analyzed and further evaluated on the basis
of the results of water conditions. This implementation emphasizes the
improvement of the agriculture process for the benefit of economic development
at the community, society and national levels. |
Keywords: |
SWQM, WSN, IoT, Dissolved Oxygen, pH |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
UNSUPERVISED KEYWORD EXTRACTION USING NON-SMOOTH NMF |
Author: |
ALIYA NUGUMANOVA,DARKHAN AHMED-ZAKI, MADINA MANSUROVA, YERZHAN BAIBURIN, KURMASH
APAYEV, ALMASBEK MAULIT |
Abstract: |
In this paper, we introduce a novel unsupervised method for keyword extraction,
based on non-smooth nonnegative matrix factorization. We generate a
document-term matrix from a given corpus and factorize it into the product of
two special matrices: documents-by-topics and topics-by-terms. In our method, we
choose a low degree of factorization (k=3,4,5) and use only topics-by-terms
matrix to extract top N keywords for each of k topics. Then we merge these
obtained N*k keywords into a resulting keyword list excluding duplicates and
assign keywords to documents. We validate our method with a large text corpora:
“Introduction to information retrieval” textbook (by Manning, Raghavan and
Schütze), available online. The result of our method is compared with three
popular unsupervised keyword extraction algorithms: TextRank, Rake and Yake. The
experiments confirm that the proposed method shows the promising performance in
terms of precision, recall and F-measure with respect to various number of
candidate keywords. |
Keywords: |
Keyword Extraction, NMF, nsNMF, NLP, Unsupervised Approach. |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
DETECTION APPROACH BASED ON MULTI-HEAD STRUCTURE AND ENHANCED FEATURES IN
DRIVING ENVIRONMENTS |
Author: |
HOANH NGUYEN |
Abstract: |
Most recent state-of-the-art detection approaches based on deep convolutional
neural networks are manually designed. These approaches include two-stage
frameworks and one-stage frameworks. While one-stage frameworks provide
real-time performance in most recent systems, two-stage frameworks usually show
better detection accuracy. Most recent two-stage object detection frameworks
share a head for both classification and bounding box regression in detection
stage. Inspired by recent improvement in double-head structures, this paper
proposes a detection framework based on multi-head structure for localizing
objects in driving environments. First, the extracted feature maps generated by
feature extraction network are enhanced by the enhancement module, which
effectively enlarges the receptive field and refines the representation ability
of thin feature maps by leveraging both local and global context. The enhanced
feature map is then fed to a detection network. Next, the detection network is
designed based on double-head structure, where a fully connected head is adopted
for classification and a convolution head is used for bounding box regression.
In addition, this paper proposes to improve RoI pooling algorithm based on
deformable RoI pooling. With the improved RoI pooling process, the harsh
quantization of RoI pooling is removed, and the extracted features are properly
aligning with the input, thus leading to large improvements. Experiments on
public datasets show the effectiveness of the proposed method for localizing
objects in driving environments. |
Keywords: |
Detection Approaches, Double-Head Structures, Multi-Head Structure, Deep
Convolutional Neural Networks, Two-Stage Framework |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
PARTITIONED GLOBAL ADDRESS SPACE APPROACH FOR THE MAPREDUCE IMPLEMENTATION OF
THE PARALLEL KMEANS ALGORITHM |
Author: |
MANSUROVA MADINA, SHOMANOV ADAY |
Abstract: |
In recent years there is a growing challenge in processing large amounts of data
as the size of the data gets exponentially increasing. Mapreduce became an
advanced tool to tackle these problems with processing of large arrays of data.
As a result, many current Mapreduce frameworks such as Apache Hadoop, Apache
Spark rely on Mapreduce as a backbone technology to solve their large-scale
problems. Though, such approaches have their benefits, performance wise they
cannot always guarantee a linear speed-up and hence a new parallel methods and
frameworks needs a thorough study in order to understand scalability and
performance benefits in these cases. In this work we present Kmeans parallel
(||) clustering algorithm implemented in a partitioned address space Mapreduce
system. This work includes a comparison and performance analysis of the
presented implementation. In the paper we propose a novel approach that was not
considered in literature before. In particular, it was found that our Mapreduce
implementation of Kmeans parallel algorithm achieves a strongly linear speed-up
that makes this approach an excellent candidate to solve high-dimensional and
large-scale clustering problems. |
Keywords: |
Mapreduce, PGAS, UPC, K-Means, Clustering |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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Title: |
A FRAMEWORK FOR REAL-TIME DYNAMIC RESCUING SYSTEM FOR INDOOR ENVIRONMENT |
Author: |
AKEEM OLOWOLAYEMO, SALEH ALANAZI, MOHD SYAFIQ ZAMRI, MITCHELLE LIAW AI WEI,
TEDDY MANTORO |
Abstract: |
Most current emergency operations employ manual find-and-rescue procedures.
Consequently, people trapped in a building remain helpless in an emergency,
unable to call out successfully until a rescue team come along which often may
be too late. The work presented in this study proposes a dynamic real time
rescue system approach to an emergency such as fire outbreak in residential
multilevel building or apartment. The research focuses indoor environment, even
though the idea is adaptable for outdoor environment as well. The study proposes
utilizing automated reporting of disaster situation to fire service in the event
of a fire outbreak, automated residents’ roll calls to all registered occupants
in a building, automated emergency status request push notification to all
residents, and dynamic rescue combined with indoor pathway safest route
guidance, to guarantee safer rescuing procedures. The dynamic rescue approach
employs dynamic trapped resident information mining to deploy firemen
proportionately to affected areas. The accuracy of the resident information
mining is approximately 97.8 % for large datasets while 90% (9/10) for small
datasets. The study proposes strategies to mitigate observed challenges with
most of the previous rescuing systems. It is hoped that this study may provide a
new direction for emerging smart buildings and future directions for rescuing
and emergency situation. |
Keywords: |
Dynamic Rescuing System, Indoor Safety System, Emergency Response, Indoor
navigation, Indoor Dynamic Localization |
Source: |
Journal of Theoretical and Applied Information Technology
30th November 2020 -- Vol. 98. No. 22 -- 2020 |
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