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2012

Panagiotopoulos, Ioannis; Kalou, Aikaterini; Pierrakeas, Christos; Kameas, Achilles

An Ontological Approach for Domain Knowledge Modeling and Management in E-Learning Systems (Proceeding)

Springer Berlin Heidelberg, Halkidiki, Greece, 2012.

(Abstract | Links | BibTeX | Tags: E-learning Systems, Knowledge modeling, Knowledge representation, ontologies, Ontology Development, Protege)

@proceedings{69,
title = {An Ontological Approach for Domain Knowledge Modeling and Management in E-Learning Systems},
author = {Ioannis Panagiotopoulos and Aikaterini Kalou and Christos Pierrakeas and Achilles Kameas},
url = {link.springer.com/chapter/10.1007/978-3-642-33412-2_10},
year = {2012},
date = {2012-01-01},
journal = {1st AI in Education Workshop: Innovations and Applications (AIeIA 2012) in: 8th AIAI (Artificial Intelligence Applications and Innovations) Confence},
volume = {IFIP AICT 382},
publisher = {Springer Berlin Heidelberg},
address = {Halkidiki, Greece},
abstract = {

One of the most important tasks in the process of designing educational material for distance learning is the representation and modeling of the cognitive domain to which the material refers. However, this representation should be formal, complete and reusable in order to be used by intelligent tutoring system applications, other knowledge domains or tutors. In the context of this work, we propose a methodology that relies on the notion of ontology so as to represent the knowledge domain. Moreover, this methodology has been applied to the educational material of the Hellenic Open University.

},
keywords = {E-learning Systems, Knowledge modeling, Knowledge representation, ontologies, Ontology Development, Protege},
pubstate = {published},
tppubtype = {proceedings}
}

One of the most important tasks in the process of designing educational material for distance learning is the representation and modeling of the cognitive domain to which the material refers. However, this representation should be formal, complete and reusable in order to be used by intelligent tutoring system applications, other knowledge domains or tutors. In the context of this work, we propose a methodology that relies on the notion of ontology so as to represent the knowledge domain. Moreover, this methodology has been applied to the educational material of the Hellenic Open University.

link.springer.com/chapter/10.1007/978-3-642-33412-2_10

2011

Panagiotopoulos, Ioannis; Seremeti, Lambrini; Kameas, Achilles

A Policy Enforcement Framework for Ubiquitous Computing Applications (Proceeding)

5th FTRA International Conference on Multimedia and Ubiquitous Engineering (MUE2011), Loutraki, Greece, June 28-30, 2011.

(Abstract | Links | BibTeX | Tags: Alignment API, Jena, Ontology alignment, policy, Protege, Ubiquitous computing)

@proceedings{616,
title = {A Policy Enforcement Framework for Ubiquitous Computing Applications},
author = {Ioannis Panagiotopoulos and Lambrini Seremeti and Achilles Kameas},
url = {http://daissy.eap.gr/wp-content/uploads/2015/08/10.IEEE-MUE.pdf},
year = {2011},
date = {2011-01-01},
publisher = {5th FTRA International Conference on Multimedia and Ubiquitous Engineering (MUE2011)},
address = {Loutraki, Greece, June 28-30},
abstract = {

Future ubiquitous computing environments integrate the services of everyday objects equipped with tiny processors and sensors into distributed applications. These smart devices can communicate with each other and also explore their environment. In order for the applications to function properly, policies need to be defined, which determine ways that they can be used, protected, changed, etc. A policy can be considered as a set of rules, specified by users, which are usually applied by a policy manager. In this paper we proposed an alternative approach, which supports the adoption of policies directly by the applications without the need of an enforcing policy manager. Two everyday scenarios are used as examples that demonstrate the validity of the approach.

},
keywords = {Alignment API, Jena, Ontology alignment, policy, Protege, Ubiquitous computing},
pubstate = {published},
tppubtype = {proceedings}
}

Future ubiquitous computing environments integrate the services of everyday objects equipped with tiny processors and sensors into distributed applications. These smart devices can communicate with each other and also explore their environment. In order for the applications to function properly, policies need to be defined, which determine ways that they can be used, protected, changed, etc. A policy can be considered as a set of rules, specified by users, which are usually applied by a policy manager. In this paper we proposed an alternative approach, which supports the adoption of policies directly by the applications without the need of an enforcing policy manager. Two everyday scenarios are used as examples that demonstrate the validity of the approach.

http://daissy.eap.gr/wp-content/uploads/2015/08/10.IEEE-MUE.pdf

2010

Panagiotopoulos, Ioannis; Seremeti, Lambrini; Kameas, Achilles; Zorkadis, Vasilios

PROACT: An ontology-based model of privacy policies in Ambient Intelligence Environments (Proceeding)

Proceedings of 14th Hellenic Conference on Informatics (PCI 2010), Tripoli, Greece, September 10-12, 2010.

(Abstract | Links | BibTeX | Tags: activity sphere, ambient intelligence, Ontology, policy, privacy, Protege)

@proceedings{611,
title = {PROACT: An ontology-based model of privacy policies in Ambient Intelligence Environments},
author = {Ioannis Panagiotopoulos and Lambrini Seremeti and Achilles Kameas and Vasilios Zorkadis},
url = {http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5600452&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5600452},
year = {2010},
date = {2010-01-01},
publisher = {Proceedings of 14th Hellenic Conference on Informatics (PCI 2010)},
address = {Tripoli, Greece, September 10-12},
abstract = {

Future computing environments involve integrating everyday objects equipped with tiny processors, sensors and wireless network cards. These smart objects (artifacts) may explore their environment and communicate with each other.

Interactivity with humans may provide the ability of dealing with tasks in an intuitive way. Activity spheres are/include such smart artifacts in order to provide functionality of various applications. The privacy of the users is considered as a major issue due to the invisibility of all computations which leads to the users being unaware of them. This paper describes how the privacy of the resources within each activity sphere owned by a user can be protected, by applying a privacy policy ontology, called PROACT.

},
keywords = {activity sphere, ambient intelligence, Ontology, policy, privacy, Protege},
pubstate = {published},
tppubtype = {proceedings}
}

Future computing environments involve integrating everyday objects equipped with tiny processors, sensors and wireless network cards. These smart objects (artifacts) may explore their environment and communicate with each other.Interactivity with humans may provide the ability of dealing with tasks in an intuitive way. Activity spheres are/include such smart artifacts in order to provide functionality of various applications. The privacy of the users is considered as a major issue due to the invisibility of all computations which leads to the users being unaware of them. This paper describes how the privacy of the resources within each activity sphere owned by a user can be protected, by applying a privacy policy ontology, called PROACT.

http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5600452&url=http%3[...]