UBITECH Research

Athens, Greece

UBITECH Research

Athens, Greece
SEARCH FILTERS
Time filter
Source Type

Alexandrou D.A.,UBITECH Research | Pardalis K.V.,UBITECH Research | Bouras T.D.,UBITECH Research | Karakitsos P.,National and Kapodistrian University of Athens | Mentzas G.N.,National Technical University of Athens
IEEE Transactions on Information Technology in Biomedicine | Year: 2012

A dramatic increase of demand for provided treatment quality has occurred during last decades. The main challenge to be confronted, so as to increase treatment quality, is the personalization of treatment, since each patient constitutes a unique case. Healthcare provision encloses a complex environment since healthcare provision organizations are highly multidisciplinary. In this paper, we present the conceptualization of the domain of clinical pathways (CP). The SEMPATH (SEMantic PATHways) Oontology comprises three main parts: 1) the CP part; 2) the business and finance part; and 3) the quality assurance part. Our implementation achieves the conceptualization of the multidisciplinary domain of healthcare provision, in order to be further utilized for the implementation of a Semantic Web Rules (SWRL rules) repository. Finally, SEMPATH Ontology is utilized for the definition of a set of SWRL rules for the human papillomavirus) disease and its treatment scheme. © 2012 IEEE.


Hasnain A.,Insight Centre for Data Analytics | Kamdar M.R.,Insight Centre for Data Analytics | Hasapis P.,UBITECH Research | Zeginis D.,Center for Research and Technology Hellas | And 8 more authors.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2014

The increase in the volume and heterogeneity of biomedical data sources has motivated researchers to embrace Linked Data (LD) technologies to solve the ensuing integration challenges and enhance information discovery. As an integral part of the EU GRANATUM project, a Linked Biomedical Dataspace (LBDS) was developed to semantically interlink data from multiple sources and augment the design of in silico experiments for cancer chemoprevention drug discovery. The different components of the LBDS facilitate both the bioinformaticians and the biomedical researchers to publish, link, query and visually explore the heterogeneous datasets. We have extensively evaluated the usability of the entire platform. In this paper, we showcase three different workflows depicting real-world scenarios on the use of LBDS by the domain users to intuitively retrieve meaningful information from the integrated sources. We report the important lessons that we learned through the challenges encountered and our accumulated experience during the collaborative processes which would make it easier for LD practitioners to create such dataspaces in other domains. We also provide a concise set of generic recommendations to develop LD platforms useful for drug discovery. © Springer International Publishing Switzerland 2014.


Loutas N.,National University of Ireland | Loutas N.,Center for Research and Technology Hellas | Loutas N.,University of Macedonia | Peristeras V.,National University of Ireland | And 8 more authors.
Proceedings - 2nd IEEE International Conference on Cloud Computing Technology and Science, CloudCom 2010 | Year: 2010

This paper focuses on the emerging problem of semantic interoperability between heterogeneous cooperating Cloud platforms. We try to pave the way towards a Reference Architecture for Semantically Interoperable Clouds (RASIC). To this end, three fundamental and complementary computing paradigms, namely Cloud computing, Service Oriented Architectures (SOA) and lightweight semantics are used as the main building blocks. The open, generic Reference Architecture for Semantically Interoperable Clouds introduces a scalable, reusable and transferable approach for facilitating the design, deployment and execution of resource intensive SOA services on top of semantically interlinked Clouds. In order to support the development of semantically interoperable Cloud systems based on RASIC, the model of a common Cloud API is also specified. © 2010 IEEE.


Alexandrou D.A.,UBITECH Research | Skitsas I.E.,UBITECH Research | Mentzas G.N.,National Technical University of Athens
IEEE Transactions on Information Technology in Biomedicine | Year: 2011

One of the main challenges to be confronted by modern health care, so as to increase treatment quality, is the personalization of treatment. The treatment personalization requires the continuous reconfiguration and adaptation of the selected treatment schemes according to the "current" clinical status of each patient and "current" circumstances inside a health care organization that change rapidly, as well as the updated medical knowledge. In this paper, we present an innovative software environment that provides an integrated IT solution concerning the adaptation of health care processes (clinical pathways) during execution time. The software comprises a health care process execution engine assisted by a semantic infrastructure for reconfiguring the clinical pathways. During the execution of clinical pathways, the system reasons over the rules and reconfigures the next steps of the treatment. A graphical designer interface is implemented for the definition of the rule-set for the clinical pathways adaptation in a user-friendly way. © 2006 IEEE.


Alexandrou D.Al.,UBITECH Research | Pardalis C.V.,UBITECH Research | Bouras A.D.,UBITECH Research | Mentzas G.N.,National Technical University of Athens
Proceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB | Year: 2010

A dramatic increase of demand for provided treatment quality has occurred during last decades. The main Challenge to be confronted, so as to increase treatment quality, is the personalization of treatment, since each patient constitutes a unique case. Healthcare provision encloses a complex environment since healthcare provision organizations are highly multidisciplinary. In this paper, we present the conceptualization of the domain of Clinical Pathways. The SEMPATH Ontology comprises three main parts: a) the Clinical Pathway part, b) the Business & Finance part and c) the Quality Assurance part. Our implementation achieves the conceptualization of the multidisciplinary domain of healthcare provision, in order to be further utilized for the implementation of a Semantic Web Rules (SWRL rules) repository. © 2010 IEEE.


Gouvas P.,UBITECH Research | Zafeiropoulos A.,UBITECH Research | Perakis K.,UBITECH Research | Bouras T.,UBITECH Research
Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST | Year: 2015

Protection of data privacy and anonymity in the healthcare domain is of crucial importance and imposes many challenges since it regards a multi-fold and multidimensional process that needs to be safeguarded on multiple levels. Data protection has to be safeguarded at application and context layer, at session layer and at network layer. Taking into account the existing challenges, the scope of the current paper is to present the approach and conceptual architecture of SHIELD, an innovative methodological approach and network architecture deployed within the framework of the FI-STAR project- targeting at the protection of healthcare information through the pseudo-anonymization of end-users. SHIELD aspires to provide value added services that could complement the service offering of the FI-STAR project in particular for the target sector of health care, and strengthen its technology basis. © Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2015.


Bouras T.,UBITECH Research | Alexandrou D.,UBITECH Research | Pardalis C.,UBITECH Research | Gouvas P.,UBITECH Research
Proceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB | Year: 2010

E-health systems' interoperability constitutes one of the main challenges of the IT society. Although current integration technologies are up to now quite mature, if we try to Increase the level of automation in e-health integration scenarios, we confront several problems and challenges regarding the documentation of the semantics related to the interfaces and the data structures of the deployed e-health systems' services. In this paper, we propose an approach, an architecture and a semantic model for the semantic service-oriented integration of healthcare legacy systems, combining the two fundamental computing paradigms, namely Service Oriented Architectures (SOA) and lightweight semantics, for achieving semantic interoperability among heterogeneous e-health systems. © 2010 IEEE.


PubMed | UBITECH Research
Type: Journal Article | Journal: IEEE transactions on information technology in biomedicine : a publication of the IEEE Engineering in Medicine and Biology Society | Year: 2011

One of the main challenges to be confronted by modern health care, so as to increase treatment quality, is the personalization of treatment. The treatment personalization requires the continuous reconfiguration and adaptation of the selected treatment schemes according to the current clinical status of each patient and current circumstances inside a health care organization that change rapidly, as well as the updated medical knowledge. In this paper, we present an innovative software environment that provides an integrated IT solution concerning the adaptation of health care processes (clinical pathways) during execution time. The software comprises a health care process execution engine assisted by a semantic infrastructure for reconfiguring the clinical pathways. During the execution of clinical pathways, the system reasons over the rules and reconfigures the next steps of the treatment. A graphical designer interface is implemented for the definition of the rule-set for the clinical pathways adaptation in a user-friendly way.


PubMed | UBITECH Research
Type: Journal Article | Journal: IEEE transactions on information technology in biomedicine : a publication of the IEEE Engineering in Medicine and Biology Society | Year: 2012

A dramatic increase of demand for provided treatment quality has occurred during last decades. The main challenge to be confronted, so as to increase treatment quality, is the personalization of treatment, since each patient constitutes a unique case. Healthcare provision encloses a complex environment since healthcare provision organizations are highly multidisciplinary. In this paper, we present the conceptualization of the domain of clinical pathways (CP). The SEMPATH (SEMantic PATHways) Oontology comprises three main parts: 1) the CP part; 2) the business and finance part; and 3) the quality assurance part. Our implementation achieves the conceptualization of the multidisciplinary domain of healthcare provision, in order to be further utilized for the implementation of a Semantic Web Rules (SWRL rules) repository. Finally, SEMPATH Ontology is utilized for the definition of a set of SWRL rules for the human papillomavirus) disease and its treatment scheme.


Gouvas P.,UBITECH Research | Bouras T.,UBITECH Research
2011 18th International Conference on Telecommunications, ICT 2011 | Year: 2011

Future networks are becoming larger in scale, more dynamic and heterogeneous, imposing new requirements to the design and provision of advanced services. In order to cope with these requirements, new approaches have to be proposed that are able to handle the changes in the network topology in an autonomic manner and relieve application developers from dealing with network topology volatility. In this paper, an approach for efficiently designing services is proposed, based on an existing generic framework that facilitates the design and development of autonomic and decentralized services in ad-hoc networks. The design of the services is realized independently from the underlying physical network while specific functions are provided to application developers for deploying useful applications. Through a set of emulations over a reference implementation, it is demonstrated that services may be efficiently and reliably delivered over a dynamic network. © 2011 IEEE.

Loading UBITECH Research collaborators
Loading UBITECH Research collaborators