Ontologies and semantic web services are the basics of next generation semantic web. This upcoming technologies are useful in many fields such as bioinformatics, business collaboration, Data integration and etc. E-learning is also the field in which semantic web technologies can be used to provide dynamism in learning methodologies. E-learning includes set of tasks which may be instructional design, content development, authoring, delivery, assessment, feedback and etc. that can be sequenced and composed as workflow. Web based Learning Management Systems should concentrate on how to satisfy the e-learners requirements. In this paper we have suggested the theoretical framework ALMS-Adaptive Learning management System which focuses on three aspects 1) Extracting the knowledge from the use's interaction, behaviour and actions and translate them into semantics which are represented as Ontologies 2) Find the Learner style from the knowledge base and 3)deriving and composing the workflow depending upon the learner style. The intelligent agents are used in each module of the framework to perform reasoning and finally the personalized workflow for the e-learner has been recommended.
Semantic web technologies have been attracting interest in many domains. E-learning is not an exception which also involves with many activities or tasks such as instructional design, content development, authoring, delivery, assessment, feedback and etc. which can be sequenced and composed as workflow. Web based E-learning services should be focused in this aspect to fulfill variant e-learners’ requirements. This paper focuses on the Adaptive instructional design framework in which three significant facets are considered 1) Knowledge extraction from user’s behavior, interactions and actions and convert them into semantics 2) Detection of learners style from the semantics defined in the knowledge base and 3) Composition of the workflow for the variant learners to satisfy their requirements dynamically. In this paper we have proposed SEALMS –Semantically Enhanced Adaptive Learning Management System a theoretical framework tracks the learners profile and composes the services for learners using OWL-S. Modules of SEALMS include intelligent agents which perform a kind of reasoning and deriving results from the input fed, finally personalized workflow has been recommended for the elearner.SEALMS is also a cyclic model where the feedback can be taken and reviving process can be initiated from the start to obtain the better results.
The e-learning contained many educational resources are generally used in learning systems like Moodle, It’s free open source software packages designed and flexible platform to create Learning Objects (LOs) and users’ accounts. The author demonstrates how to use semantic web technologies to improve online learning environments and bridge the gap between learners and LOs. The ontological construction presented here helps formalize LOs context as a complex interplay of different learning-related elements and shows how we can use semantic annotation to interrelate diverse between learner and LOs. On top of this construction, the author implemented several feedback channels for educators to improve the delivery of future Web-based learning. The particular aim of this paper was to provide a solution based in the Moodle Platform. The main idea behind the approach presented here is that ontology which can not only be useful as a learning instrument but it can also be employed to assess students’ skills. For it, each student is prompted to express his/her beliefs by building own discipline-related ontology through an application displayed in the interface of Moodle. This paper presents the ontology for an e-Learning System, which arranges metadata, and defines the relationships of metadata, which are about learning objects; belong to academic courses and user profiles. This ontology has been incorporated as a critical part of the proposed architecture. By this ontology, effective retrieval of learning content, customizing Learning Management System (LMS) is expected. Metadata used in this paper are based on current metadata standards. This ontology specified in human and machine-readable formats. In implementing it, several APIs were defined to manage the ontology. They were introduced into a typical LMS such as Moodle. Proposed ontology maps user preferences with learning content to satisfy learner requirements. These learning objects are presented to the learner based on ontological relationships. Hence it increases the usability and customizes the LMS. In conclusion, ontologies have a range of potential benefits and applications in further and higher education, including the sharing of information across e-learning systems, providing frameworks for learning object reuse, and enabling information between learner and system parts.
Although of the semantic web technologies utilization in the learning development field is a new research area, some authors have already proposed their idea of how an effective that operate. Specifically, from analysis of the literature in the field, we have identified three different types of existing applications that actually employ these technologies to support learning. These applications aim at: Enhancing the learning objects reusability by linking them to an ontological description of the domain, or, more generally, describe relevant dimension of the learning process in an ontology, then; providing a comprehensive authoring system to retrieve and organize web material into a learning course, and constructing advanced strategies to present annotated resources to the user, in the form of browsing facilities, narrative generation and final rendering of a course. On difference with the approaches cited above, here we propose an approach that is modeled on narrative studies and on their transposition in the digital world. In the rest of the paper, we present the theoretical basis that inspires this approach, and show some examples that are guiding our implementation and testing of these ideas within e-learning. By emerging the idea of the ontologies are recognized as the most important component in achieving semantic interoperability of e-learning resources. The benefits of their use have already been recognized in the learning technology community. In order to better define different aspects of ontology applications in e-learning, researchers have given several classifications of ontologies. We refer to a general one given in that differentiates between three dimensions ontologies can describe: content, context, and structure. Most of the present research has been dedicated to the first group of ontologies. A well-known example of such an ontology is based on the ACM Computer Classification System (ACM CCS) and defined by Resource Description Framework Schema (RDFS). It’s used in the MOODLE to classify learning objects with a goal to improve searching. The chapter will cover the terms of the semantic web and e-learning systems design and management in e-learning (MOODLE) and some of studies depend on e-learning and semantic web, thus the tools will be used in this paper, and lastly we shall discuss the expected contribution. The special attention will be putted on the above topics.
OLAP based Scaffolding to support Personalized Synchronous e-Learning IJMIT JOURNAL
The advent of asynchronous web based learning systems has helped the learner in a self paced,
personalized and flexible learning style. It can be even more useful with a supportive synchronous tutorial
(question-answer) session. The challenge is to provide sufficient information to the instructor about the
learner’s experience in that particular course at run time. Online analytical processing (OLAP) is a very
useful technique in producing such run time information in the form of reports. In this paper we have
designed an automated scaffolding technique to hold this vital information about the learner which we have
obtained by OLAP techniques on the log data of the LMS users. We have also proposed an overall
architecture of the scaffolding where this information can be easily accessed and used by the instructor in
the synchronous tutorial session to make the system more adaptive.
Semantic web technologies have been attracting interest in many domains. E-learning is not an exception which also involves with many activities or tasks such as instructional design, content development, authoring, delivery, assessment, feedback and etc. which can be sequenced and composed as workflow. Web based E-learning services should be focused in this aspect to fulfill variant e-learners’ requirements. This paper focuses on the Adaptive instructional design framework in which three significant facets are considered 1) Knowledge extraction from user’s behavior, interactions and actions and convert them into semantics 2) Detection of learners style from the semantics defined in the knowledge base and 3) Composition of the workflow for the variant learners to satisfy their requirements dynamically. In this paper we have proposed SEALMS –Semantically Enhanced Adaptive Learning Management System a theoretical framework tracks the learners profile and composes the services for learners using OWL-S. Modules of SEALMS include intelligent agents which perform a kind of reasoning and deriving results from the input fed, finally personalized workflow has been recommended for the elearner.SEALMS is also a cyclic model where the feedback can be taken and reviving process can be initiated from the start to obtain the better results.
The e-learning contained many educational resources are generally used in learning systems like Moodle, It’s free open source software packages designed and flexible platform to create Learning Objects (LOs) and users’ accounts. The author demonstrates how to use semantic web technologies to improve online learning environments and bridge the gap between learners and LOs. The ontological construction presented here helps formalize LOs context as a complex interplay of different learning-related elements and shows how we can use semantic annotation to interrelate diverse between learner and LOs. On top of this construction, the author implemented several feedback channels for educators to improve the delivery of future Web-based learning. The particular aim of this paper was to provide a solution based in the Moodle Platform. The main idea behind the approach presented here is that ontology which can not only be useful as a learning instrument but it can also be employed to assess students’ skills. For it, each student is prompted to express his/her beliefs by building own discipline-related ontology through an application displayed in the interface of Moodle. This paper presents the ontology for an e-Learning System, which arranges metadata, and defines the relationships of metadata, which are about learning objects; belong to academic courses and user profiles. This ontology has been incorporated as a critical part of the proposed architecture. By this ontology, effective retrieval of learning content, customizing Learning Management System (LMS) is expected. Metadata used in this paper are based on current metadata standards. This ontology specified in human and machine-readable formats. In implementing it, several APIs were defined to manage the ontology. They were introduced into a typical LMS such as Moodle. Proposed ontology maps user preferences with learning content to satisfy learner requirements. These learning objects are presented to the learner based on ontological relationships. Hence it increases the usability and customizes the LMS. In conclusion, ontologies have a range of potential benefits and applications in further and higher education, including the sharing of information across e-learning systems, providing frameworks for learning object reuse, and enabling information between learner and system parts.
Although of the semantic web technologies utilization in the learning development field is a new research area, some authors have already proposed their idea of how an effective that operate. Specifically, from analysis of the literature in the field, we have identified three different types of existing applications that actually employ these technologies to support learning. These applications aim at: Enhancing the learning objects reusability by linking them to an ontological description of the domain, or, more generally, describe relevant dimension of the learning process in an ontology, then; providing a comprehensive authoring system to retrieve and organize web material into a learning course, and constructing advanced strategies to present annotated resources to the user, in the form of browsing facilities, narrative generation and final rendering of a course. On difference with the approaches cited above, here we propose an approach that is modeled on narrative studies and on their transposition in the digital world. In the rest of the paper, we present the theoretical basis that inspires this approach, and show some examples that are guiding our implementation and testing of these ideas within e-learning. By emerging the idea of the ontologies are recognized as the most important component in achieving semantic interoperability of e-learning resources. The benefits of their use have already been recognized in the learning technology community. In order to better define different aspects of ontology applications in e-learning, researchers have given several classifications of ontologies. We refer to a general one given in that differentiates between three dimensions ontologies can describe: content, context, and structure. Most of the present research has been dedicated to the first group of ontologies. A well-known example of such an ontology is based on the ACM Computer Classification System (ACM CCS) and defined by Resource Description Framework Schema (RDFS). It’s used in the MOODLE to classify learning objects with a goal to improve searching. The chapter will cover the terms of the semantic web and e-learning systems design and management in e-learning (MOODLE) and some of studies depend on e-learning and semantic web, thus the tools will be used in this paper, and lastly we shall discuss the expected contribution. The special attention will be putted on the above topics.
OLAP based Scaffolding to support Personalized Synchronous e-Learning IJMIT JOURNAL
The advent of asynchronous web based learning systems has helped the learner in a self paced,
personalized and flexible learning style. It can be even more useful with a supportive synchronous tutorial
(question-answer) session. The challenge is to provide sufficient information to the instructor about the
learner’s experience in that particular course at run time. Online analytical processing (OLAP) is a very
useful technique in producing such run time information in the form of reports. In this paper we have
designed an automated scaffolding technique to hold this vital information about the learner which we have
obtained by OLAP techniques on the log data of the LMS users. We have also proposed an overall
architecture of the scaffolding where this information can be easily accessed and used by the instructor in
the synchronous tutorial session to make the system more adaptive.
Learner Model's Utilization in the e-Learning Environments
Vija VAGALE and Laila NIEDRITE
Faculty of Computing, University of Latvia, Raina boulv. 19, Riga, Latvia
Abstract. In the field of personalized systems big role is granted to the adaptive elearning environments. The task of these systems is very important and complicated. With their participation the learner gains exactly the knowledge he
needs most, and the system adapts to user needs, expectations and his individual features. In this kind of systems information about learner is saved in the learner model also known as the user model and student model. For the system to be able to perceive and analyze user activities correctly, is necessary to define what kind of information about the learner has to be saved. The article gives an overview about already existing learner models, their utilization methods and also it offers their comparison according to various criteria.
Using Ontology in Electronic Evaluation for Personalization of eLearning Systemsinfopapers
I. Pah, F. Stoica, L. F. Cacovean, E. M. Popa, Using Ontology in Electronic Evaluation for Personalization of eLearning Systems, Proceedings of the 8th WSEAS International Conference on APPLIED INFORMATICS and COMMUNICATIONS (AIC’08), Rhodes, Greece, August 20-22, ISSN: 1790-5109, ISBN: 978-960-6766-94-7, pp. 332-337, 2008
Applying adaptive learning by integrating semantic and machine learning in p...IJECEIAES
Adaptive learning is one of the most widely used data driven approach to teaching and it received an increasing attention over the last decade. It aims to meet the student’s characteristics by tailoring learning courses materials and assessment methods. In order to determine the student’s characteristics, we need to detect their learning styles according to visual, auditory or kinaesthetic (VAK) learning style. In this research, an integrated model that utilizes both semantic and machine learning clustering methods is developed in order to cluster students to detect their learning styles and recommend suitable assessment method(s) accordingly. In order to measure the effectiveness of the proposed model, a set of experiments were conducted on real dataset (Open University Learning Analytics Dataset). Experiments showed that the proposed model is able to cluster students according to their different learning activities with an accuracy that exceeds 95% and predict their relative assessment method(s) with an average accuracy equals to 93%.
Understanding the role of individual learner in adaptive and personalized e-l...journalBEEI
Dynamic learning environment has emerged as a powerful platform in a modern e-learning system. The learning situation that constantly changing has forced the learning platform to adapt and personalize its learning resources for students. Evidence suggested that adaptation and personalization of e-learning systems (APLS) can be achieved by utilizing learner modeling, domain modeling, and instructional modeling. In the literature of APLS, questions have been raised about the role of individual characteristics that are relevant for adaptation. With several options, a new problem has been raised where the attributes of students in APLS often overlap and are not related between studies. Therefore, this study proposed a list of learner model attributes in dynamic learning to support adaptation and personalization. The study was conducted by exploring concepts from the literature selected based on the best criteria. Then, we described the results of important concepts in student modeling and provided definitions and examples of data values that researchers have used. Besides, we also discussed the implementation of the selected learner model in providing adaptation in dynamic learning.
A REGISTRY BASED DISCOVERY MECHANISM FOR E-LEARNING WEB SERVICEScscpconf
E-learning is currently taking the shape of a Web Service in various applications i.e. learners
can search for suitable content, book it, pay for it and consume it. This paper shows how the
search aspects for e-learning content can technically be combined with the recent
standardization efforts that aim at content exchangeability and efficient reuse. A repository for
learning object publication and search is proposed that essentially adapts the UDDI framework
used in commercial Web Services to the e-learning context. To adopt Web Services technology
towards the reusability and aggregation of e-learning services, the conceptual Web Services
architecture and its building blocks need to be augmented. The objective of this research is to
design broker based registry architecture for e- Web services which facilitates effective elearning
content/service discovery for the consumption or composition. The implementation
followed by experimentation showed that, the proposed e-learning discovery architecture
facilitates effective discovery with moderate performance in terms of overall response.
LEMON : THE LEARNING EFFICIENCY COMPUTATION MODEL FOR ASSESSING LEARNER CONTE...IJITE
Current E-learning systems are focusing on providing learning solutions depending upon the context of the
learner. Efforts have been put in the delivery of contents, learning path and support based on the learner
context. As the learner’s context serves as base for triggering adaptation of learning solutions, a clear
understanding and an accurate definition of learner context is necessary. Different perspectives of context
have been discussed in literature. In this paper a different perspective for defining learner context is
employed and a feature viz. Learning Efficiency that consolidates the learner context has been arrived. The
different elements that constitute Learning efficiency have been identified using which a computational
model of Learning Efficiency called LEMOn has been proposed in order to quantify the learner context.
The model has been subjected to statistical evaluation in order to check for its correctness and was found
to represent the learner context efficiently.
Towards a new ontology of the Moroccan Post-baccalaureate learner profile for...iosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Daniel Burgos: IMS Learning Design next move: extensions and improvements on personalisa-tion and interoperability
http://www.ld-grid.org/workshops/ASLD11
Semantically Enchanced Personalised Adaptive E-Learning for General and Dysle...Eswar Publications
E-learning plays an important role in providing required and well formed knowledge to a learner. The medium of e- learning has achieved advancement in various fields such as adaptive e-learning systems. The need for enhancing e-learning semantically can enhance the retrieval and adaptability of the learning curriculum. This paper provides a semantically enhanced module based e-learning for computer science programme on a learnercentric perspective. The learners are categorized based on their proficiency for providing personalized learning environment for users. Learning disorders on the platform of e-learning still require lots of research. Therefore, this paper also provides a personalized assessment theoretical model for alphabet learning with learning objects for
children’s who face dyslexia.
Designing a Scaffolding for Supporting Personalized Synchronous e-Learningcscpconf
The advent of asynchronous web based learning systems has helped the learner in a self paced,
personalized and flexible learning style. It can be even more useful with a supportive
synchronous tutorial (question-answer) session. The challenge is to provide sufficient
information to the instructor about the learner’s experience in that particular course. In this paper we have designed an automated scaffolding technique to hold these vital information’s about the learner which can be accessed and used by the instructor in the synchronous tutorial session to make the system more adaptive.
Currently, e-learning is becoming an option as it can save the cost of education, time, and more flexible in its implementation. The main problem that arises is how to create e-learning content that is interesting and really fit the needs of the users. One way that can be done to optimize the content of e-learning is to analyze the user behavior. This study aims to analyze user (student) behavior in KALAM UMP, based on logs report (activity history), which is often called as behavioral tracking. First, the learning style of the students is determined based on Honey and Mumford Learning Styles Model by using Learning Styles Questionnaire. The analysis is done using SPSS 16.0 for Windows. The results shows that student with Reflector and Theorist learning styles access e-learning materials the most. From Spearman Correlation analysis, the relationship between learning styles and students’ behavior in e-learning is found to be very weak (rs=.276, p=.000), but statistically significant (p<0.05). In other words, students’ learning styles and behavior in e-learning have significant impacts on the improvement or degradation of students’ performance. Therefore, from the results of this study, an adaptive KALAM e-learning system which can suits the learning styles of UMP students is proposed. In adaptive e-learning system, students can access learning materials that match the students' learning needs and preferences.
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needs most, and the system adapts to user needs, expectations and his individual features. In this kind of systems information about learner is saved in the learner model also known as the user model and student model. For the system to be able to perceive and analyze user activities correctly, is necessary to define what kind of information about the learner has to be saved. The article gives an overview about already existing learner models, their utilization methods and also it offers their comparison according to various criteria.
Using Ontology in Electronic Evaluation for Personalization of eLearning Systemsinfopapers
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E-learning is currently taking the shape of a Web Service in various applications i.e. learners
can search for suitable content, book it, pay for it and consume it. This paper shows how the
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standardization efforts that aim at content exchangeability and efficient reuse. A repository for
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understanding and an accurate definition of learner context is necessary. Different perspectives of context
have been discussed in literature. In this paper a different perspective for defining learner context is
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Adaptive Learning Management System Using Semantic Web Technologies
1. International Journal on Soft Computing (IJSC) Vol.4, No.1, February 2013
DOI: 10.5121/ijsc.2013.4101 1
ADAPTIVE LEARNING MANAGEMENT SYSTEM
USING SEMANTIC WEB TECHNOLOGIES
M.Farida Begam1
and Gopinath Ganapathy2
1
Department of Information Technology, Manipal University Dubai, U.A.E,
farida@manipaldubai.com
2
School of Computer Science and Engineering, Bharathidasan University, India
gopinath.g@csbdu.in, drgg@bdu.ac.in
ABSTRACT
Ontologies and semantic web services are the basics of next generation semantic web. This upcoming
technologies are useful in many fields such as bioinformatics, business collaboration, Data integration and
etc. E-learning is also the field in which semantic web technologies can be used to provide dynamism in
learning methodologies. E-learning includes set of tasks which may be instructional design, content
development, authoring, delivery, assessment, feedback and etc. that can be sequenced and composed as
workflow. Web based Learning Management Systems should concentrate on how to satisfy the e-learners
requirements. In this paper we have suggested the theoretical framework ALMS-Adaptive Learning
management System which focuses on three aspects 1) Extracting the knowledge from the use's interaction,
behaviour and actions and translate them into semantics which are represented as Ontologies 2) Find the
Learner style from the knowledge base and 3)deriving and composing the workflow depending upon the
learner style. The intelligent agents are used in each module of the framework to perform reasoning and
finally the personalized workflow for the e-learner has been recommended.
KEYWORDS
Learning Style, Learning Objects, workflow, web services, Semantics, Ontology, LMS, ALMS, and OWL-S
1. INTRODUCTION AND OBJECTIVE
Many Universities across the world began their on line learning management system. Traditional
teacher-learner centric classes are converted to repeated learner centric courses where reusability
is enforced and time, space constraints are broken. Now many learners both students and
academicians believe in continuous learning-teaching processes which rely on world wide web.
Each learner has his/her own traits pace, prior knowledge level in the course, and requirements.
Semantic web based learning management system which is adaptive in terms of finding the
learners style and provides learning objects or services according to the style of the learner
dynamically is the requirement now a days. This kind of LMS that allows learners to determine
their learning agenda and control their own Learning is a current necessity. Learners understand
and assimilate the concepts learned and apply them in practical solutions. Latest and Future
learning systems have to consider this customized learning paths to their design and
implementation. Dynamic Composition of e-Learning contents and e-learning services and
Semantic Querying for Learning materials and constructing learners preferred courses are the
2. International Journal on Soft Computing (IJSC) Vol.4, No.1, February 2013
2
features which to be implemented in the any adaptive e-Learning management system. This
process involves building knowledge base and detecting learner's style and composition of
workflow of e-learning services. The main objective of the e-learning framework which is
proposed in this paper is to develop a completely new, semantically enhanced, automatically
composed adaptive e-learning system for dynamic learners.
This paper is structured in the following manner. In Section 2 we discuss the theoretical aspects
of the framework. Section 3 is dedicated for literature survey and related work, and in Section 4
and 5 we define the ALMS framework and every module’s functionality and implementation.
Section 5 we conclude the paper.
2. THEORETICAL BACKGROUND
In this section, theoretical concepts about various aspects of the frame work have been
elaborated.
2.1. Automatic Learning Style Detection
An adaptive system must be capable of managing learning paths adapted to each user, monitoring
user activities, interpreting those using specific models, inferring user needs and preferences and
exploiting user and domain knowledge to dynamically facilitate the learning process [1]. As per
the definition by James and Blank [2] learning style is “the complex manner in which, and the
conditions under which, learners most efficiently and most effectively perceive, process, store
and recall what they are attempting to learn”. The another definition of the same is learning styles
represent a combination of cognitive, affective and other psychological characteristics that serve
as relatively stable indicators of the way a learner perceives, interacts with and responds to the
learning environment [3]. In this paper also the same notion has been adopted. There are two
methods of finding leaner's style i.e., Finding learning style from the user input or automatic
extraction of learner's style with less user input. In first method users fill length questionnaire and
give their maximum input which makes the user to get into bored learning. This method is also
called collaborative approach. Learners style may be detected automatically from the prior history
of the learners, their behavior and interactions which is semi/fully automated method. The second
method of detection of learning profile may be implemented using OWL – Web Ontology
Language to represent the profile semantically and extract the same to dynamically set the
workflow for a specific learner. The main goal of web 3.0 is personalization and this has become
the vital feature in e-learning, Finding personalized workflow for a learner can be established
using various ways. In our method we use Semantic Web technologies and Ontologies to develop
the representation of learning objects, assessment Ontologies and competencies Ontologies that
link learning with personal preferences and interest.
The necessities that led us to design ALMS
• facilitates the student to evaluate themselves
• Find themselves what kind of learner he/she is
• Tools and processes are required to obtain the correct workflow of LOs that lead to
automatic dynamic workflow composition.
• Accessing LOs in knowledge based repository on the fly.
3. International Journal on Soft Computing (IJSC) Vol.4, No.1, February 2013
3
• Designing cyclic LMS which takes feedback from learners to enhance the customized
workflow
2.2. Automatic composition of web services
Downsizing the learning content to meaningful units with manual, semi-automated and automatic
procedures is a tough process [4]. In web services architecture, WSDL-Web Service Description
Language is used for web service description which takes syntactic aspects into consideration.
Web services related operations are very difficult to achieve with these syntactic descriptions. But
OWL-S profile and process ontologies are based on semantics using which integration, discovery
and composition of web services are made easy. Manual composition of workflows, as any user
driven process, is a task prone to errors and inconsistencies [5].
In e-learning processing, the learner who does not know about his/her requirements, and who’s
learning profile need to be found may not involve in composition of e-learning web services. By
user profile, and their behavior the LMS has to find user requirements. Simply linking the input
and output parameters in the web services will not help. Automation of this work flow
composition helps him/her to relieve from the burden of deciding what services they need and it
needs semantics to be described using OWL-S.
Figure 1. Conceptual Model
2.3. Benefits of ALMS
In our ALMS framework we combine the three aspects 1) Learning style detection 2) knowledge
representation, and 3) Work flow composition which is conceptually represented in Figure 1 to
provide the following benefits to any e-learner.
• Personalized workflow for dynamic learners whose behavior and requirements changes
over time.
• Collaborating with people with similar experience
• Enforces continuous learning
4. International Journal on Soft Computing (IJSC) Vol.4, No.1, February 2013
4
• Supports categories of learners styles
• Provides guidelines to Instruction designers to move toward with most appropriate design
for their student community
3. LITERATURE SURVEY AND RELATED WORK
This section lists out the related work done by different approaches
.
3.1. Learning Style Detection and Adaptive Learning Management System
Proper understanding of Learning Style theory is required to design learning style based work
flow composition in e-learning framework. Learning style models have been suggested by
various researchers. They are VAK Model, Kolb's model, Honey and Mumford's model and
FSM-Felder-Silverman model. In these models either collaborative or automatic approach has
been adhered. Learning styles are based on the research outcomes of cognitive psychology about
processing information, active learning and the structure of information [6]. The following is the
list of work done in this automatic student modeling.
The first idea of providing personalized learning introduced formally by Koumi[19]. He
implemented multimedia based adaptive learning management system in which computer offers
individualized control and interactivity. Tailoring e-learning content to satisfy the individual is a
challenging process. Nabila et al [8] suggested a method of learning style detection in which
observable behaviors and actions of learners tracked and converted into style. Farman Ali Khan et
al [9] tracked learners’ knowledge progress, provides an assessment, and supports the learner by
offering hints, help, and feedback in their proposed learning and assessment tool/framework.
They discussed about affective state of learners plays major role in effectiveness of e-learning.
[16] Dung and Florea concentrate on intelligent agents that can provide the learners with personal
assistants to carry out learning activities according to their learning styles and knowledge level.
Learner’s interest, goals, and their prior knowledge in that subject are major concerns in any
ALMS. In this kind of LMS, student centered approach is given more significance. The rationale
behind adaptive LMS is that accommodating the individual differences of the learners (in terms
of knowledge level, goals, learning style, cognitive abilities, etc.) is beneficial for the student,
leading to an increased learning performance and/or learner satisfaction[1]. Online learners
behavior cannot be predicted in advance and it changes over time. Wolf C [10] has tested
whether multimedia based Learning objects improved weak students performance or not. Melody
Siadaty and Fattaneh Taghiyareh [11] used the Jackson’s Learning Styles Profiler (LSP) [12] in
order to model the learning styles of the learners. Jackson defined five learning styles: sensation
seeker, goal oriented achiever, emotionally intelligent achiever, deep learning achiever and
conscientious achiever [1]. In our ALMS, learning style module uses the technique of Sabine
Graf model [17] and Jackson Learning Style Profiler and uses semantics and knowledge base of
Ontologies to derive the learning styles in LSP [1]. We prefer to use this model because a learner
will fit into any one of these categories
3.2. Automatic workflow composition:
Instruction design and instruction development are the two components of instruction technology.
Learning objects development involves creation of different LOs by teaching and subject experts.
LOs can be ppts, slides, multimedia based components, assessments and feedback module,
5. International Journal on Soft Computing (IJSC) Vol.4, No.1, February 2013
5
simulation modules, etc. Instruction design involves how to offer these learning objects, and what
is the basic criteria for providing the learning objects and e-learning services. The area of e-
learning consists of a multiplicity of complex activities, such as content authoring or learner
tracking and administration which interact with resources (including people such as learners and
authors), with one another (some activities trigger others), and with the outside world (such as
existing software systems) in a predefined way [13]. Jihie Kim et al [5] explained about AI
planning techniques in which rich knowledge base is used for automatic composition. They have
come up with approach for interactive workflow composition that includes 1) knowledge-rich
descriptions of the individual components and their constraints; 2) a formal algorithmic
understanding of partial workflows, based on AI planning techniques. Eran Chinthaka et al [20]
propose a Case-Based Reasoning (CBR) approach to assist composition of workflows based on
the characteristics of the inputs and the outputs of the reusable workflow components, facilitating
user exploitation of existing services and workflows during workflow composition.
Jorge Cardoso and Amit Sheth [14] has suggested QoS based workflow composition technique in
which operational requirements timeliness, quality of products delivered, cost of service, and
reliability are given significance for composition. Xubo Fei and Shiyong Lu [15] uses data flow
driven approach for composing scientific workflow. In this paper they have suggested a dataflow-
based scientific workflow model that separates the declaration of the workflow interface from the
definition of its functional body; a set of workflow constructs, including Map, Reduce, Tree,
Loop, and Conditional which are fully compositional one with another, a dataflow based
exception handling approach to support hierarchical exception propagation and user-defined
exception handling are the unique features of this paper.
4. ALMS FRAMEWORK
This framework in Figure 2. focuses on a cyclic model which includes continuous learning –
feedback-update-learning cycle. It seamlessly integrates the following modules:
Figure 2. ALMS-Framework
ALMS framework can also be considered as QoS model which takes learners style as operational
metric to decide the work flow of e-learning services. This framework has been divided into the
following modules mentioned below.
6. International Journal on Soft Computing (IJSC) Vol.4, No.1, February 2013
6
Input module: This module is based on the technique which uses mix of both collaborative and
automatic concepts where the behavior, interactions and attitude of the learners are tracked based
on certain list of activities. If the learner profile is available in knowledge base, that will also be
obtained. Here the users are not directed to fill the lengthy questionnaire instead they perform
certain activities (games kind) for that relevant subject learning. For example, user may be asked
to list out certain keywords which are relevant to the subject.
Semantics Acquisition Module: From the user input Ontologies constructed and stored. Here
the context ontology, learning object related ontologies such as i) Learner Ontology ii) Learner
Style Ontology iii) Domain Ontology iv) Pedagogical Ontology v) Adaptation ontology vi)
Workflow ontology are constructed. This module does not involve users. This module
automatically detects available learning objects and takes the ontologies for that subject specified
by the user.
Knowledge Extraction/Learners Style Detector Module: Ontologies obtained from
knowledge acquisition module and profile/historical details of the learner are used to determine
the kind of learner in other words learning preference of the learner is detected. [17] Sabine Graf
approach is to be extended where learner’s interaction and their behavior related ontologies stored
in knowledge base and extracted to detect the Learning style. Ours uses the methodology where
learner’s behavior, actions, interactions and learner profile (if already exists in knowledge base)
are stored in terms of Ontologies. The semantics obtained from the Ontologies are input for
detecting learner’s requirements. Ontology reasoners are involved to perform different operations
such as union, intersection, merge and refinement on ontologies can be performed to find out the
learning style of the e-learner [18].
Work flow composer module: Web services are independent entities. Achieving inter
operability among heterogeneous web services is challenging task. The standards that are used
for building independent, portable, inter operable web services are WSDL, SOAP and UDDI. But
WSDL uses syntactical description of the web service. Workflow which is an abstraction of
business process composed of one or more web services sequenced to resolve the business
request. Syntactical nature of WSDL doesn’t allow the composition or orchestration of these
services statically or in other way with user intervention. Automatic composition can be achieved
with Web Ontology language OWL-S in building semantic web services. Profile, grounding and
process ontology are used to compose the services dynamically. The planner or composer in this
is responsible for this workflow plan generation. There are several Heuristic approaches
available. The one which we find suitable for dynamic composition is A* search algorithm. A* is
which meant for best path finding is modified in our approach that takes an input of learning style
detection and, identifies possible paths and returns the best workflow solution. This algorithm is
similar to greedy best first algorithm which takes history of nodes traversed. Semantic web
based E-learning services which provide different learning objects as a sequence will be
identified for the learners preference. The composer which takes learning styles ontologies and
learning Object ontologies use variant A* algorithm to determine the best workflow.
Execution module: Realizes the work flow sequence obtained in composing module.
Messaging happens to communicate among various entities in the sequence. Correct sequence of
services executed and sequence will be provided to the Learners
7. International Journal on Soft Computing (IJSC) Vol.4, No.1, February 2013
7
5. IMPLEMENTATION
This conceptual framework is under implementation in Jena Framework which is meant for
creating semantic web application. The evaluation of this framework is to be conducted for
various real time data. The results, findings and comparative study on various other ALMS will
be carried out after the completion of the project.
6. CONCLUSION
Personalization is a vision of Web 3.0 which next generation web. Instruction design is an area
which is still not given significance as far as semantic web concerned. Achieving this goal in e-
learning services is challenging one. In this paper we try to provide the theoretical aspects of
combining two- three areas of our interest and bridge the gap between these fields. The
conceptual framework ALMS combines learning style detection, ontology operations and
knowledge management for reasoning and dynamic composition of e-learning services using
planning algorithm to provide the benefits listed below
• suitable workflow for dynamic learners whose behavior changes over time.
• Collaborating with people with similar experience
• Enforces continuous learning
• Supports categories of learners styles
• helps the instruction designers to provide the most appropriate design for their student
community
In this framework, we consider e-learning services into major consideration. But this approach
can be applied to various business domains where dynamic composition is compulsory.
7. REFERENCES
[1] Popescu, E., Badica, C.,& Moraret, L. "Accommodating Learning Styles in an Adaptive Educational
System," Informatica , vol. 34 2010, no. Computational Linguistics and its Applications, p. 451–462,
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[2] Boticario, J G.,Santos, O C., Van Rosmalen P., "Issues in Developing Standard-based Adaptive
Learning Management Systems," in EADTU 2005 Working Conference: Towards Lisbon 2010:
Collaboration for Innovative in Lifelong Open and Flexible Learning, Italy, 2005.
[3] J. Keefe, "Learning Style: Overview," NASSP’s Student Learning Styles: Diagnosing and Prescribing
Programs, National Association of Secondary School Principles., pp. 1-17, 1979.
[4] Lytras, M., Sicilia, M., “Knowledge society a manifesto for knowledge and learning. Int. J.
Knowledge and Learning 1(1), 1–11 (2005)
[5] J. Kim, M. Spraragen and a. Y. Gil, "An Intelligent Assistant for Interactive Workflow Composition,"
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Madeira, Portugal, 2004.
[6] E. Kanninen, "Learning styles and e-learning," Tampere, 2008.
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Conference on Cognition and Exploratory Learning in Digital Age, Algarve, Portugal, 2007.
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on Educational Multimedia, Hypermedia and Telecommunications 2009, Honolulu, Hawaii, June
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[10] Wolf, C., “Construction of an Adaptive E-learning Environment to Address Learning Styles and an
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[12] Jackson. C. [Online]. Available: http://www.cymeon.com.
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Web Intelligence, Mining and Semantics , Craiova, Romania, 2012.
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AUTHORS
M. Farida Begam received her Bachelor of Engineering in Computer Science and
Engineering from Bharathidasan University, India in 1998 and Master of Technology in
National Institute of Technology, Trichy, India in 2006 and she worked as a Technical
Evangelist in Infosys Technologies, India and now she is working as Senior Lecturer in
the Department of Information Technology, Manipal University, Dubai Campus, U.A.E.
She is currently pursuing Ph.D., in Bharathidasan University, India in the field of
Semantic Web based E-learning. She is also CCNA Certified Instructor. Her research
interests include Web technologies, Semantic Web, Computer Networks, Operating
systems and Security.
Gopinath Ganapathy PhD is the Head, School of Computer Science Engineering and
Applications, Bharathidasan University, India. He did his under graduation and post-
graduation in Computer Science and Applications in 1986 and 1988 respectively from
Bharathidasan University, India. He obtained his PhD degree, in Computer Science in
1996, from Madurai Kamaraj University, India. Received Young Scientist Fellow Award
for the year 1994 and eventually did the research work at IIT Madras. He published
around 20 papers. He is a member of IEEE, ACM, CSI, and ISTE. He was a Consultant
for 8.5 years in the international firms in the USA and the UK, including IBM, Lucent
Technologies (Bell Labs) and Toyota. His research interests include Semantic Web,
NLP, Ontology, and Text Mining.