A5056287241- Semantic Web and Ontologies
- Context-Aware Activity Recognition Systems
- Service-Oriented Architecture and Web Services
- Data Quality and Management
- IoT and Edge/Fog Computing
- Natural Language Processing Techniques
- Biomedical Text Mining and Ontologies
- Business Process Modeling and Analysis
- Dementia and Cognitive Impairment Research
- Robotics and Automated Systems
- Data Management and Algorithms
- Advanced Database Systems and Queries
- Anomaly Detection Techniques and Applications
- Topic Modeling
- Human Pose and Action Recognition
- Speech and dialogue systems
- Time Series Analysis and Forecasting
- Geographic Information Systems Studies
- Scientific Computing and Data Management
- AI in Service Interactions
- Voice and Speech Disorders
- Fire effects on ecosystems
- Software System Performance and Reliability
- Cloud Computing and Resource Management
- Video Analysis and Summarization
Aristotle University of Thessaloniki
2007-2024
Information Technologies Institute
2014-2023
Centre for Research and Technology Hellas
2014-2023
China Philanthropy Research Institute
2019
International Hellenic University
2016-2017
Information Technology Institute
2013-2016
Background: Assistive technology, in the form of a smart home environment, is employed to support people with dementia. Objectives: To propose system for continuous and objective remote monitoring problematic daily living activity areas design personalized interventions based on fee dback clinical observations improving cognitive function health-related quality life. Methods: The assistive technology proposed system, including wearable, sleep, object motion, presence, utility usage sensors,...
Although Augmented Reality (AR) technology has entered many market and knowledge domains such as games leisure activities, it remains rather limited in digital heritage. After studying the potentiality of using modern AR elements a museum context, this paper proposes use additional game educational core application order to enhance overall on-the-spot visitor’s experience. An agile design methodology was followed by taking into account needs small-to-medium sized real-world museums....
In this paper, we describe and evaluate a Web service discovery framework using OWL-S advertisements, combined with the distinction between of WSMO Discovery Framework. More specifically, follow model, which is based on abstract lightweight semantic descriptions, Service Profile ontology OWL-S. Our goal to determine fast an initial set candidate services for specific request. This can then be used in more fine-grained approaches, richer descriptions. matchmaking algorithm extends...
Combining multimodal concept streams from heterogeneous sensors is a problem superficially explored for activity recognition. Most studies explore simple in nearly perfect conditions, where temporal synchronization guaranteed. Sophisticated fusion schemes adopt problem-specific graphical representations of events that are generally deeply linked with their training data and focused on single sensor. This paper proposes hybrid framework between knowledge-driven probabilistic-driven methods...
In this paper, we describe O-DEVICE, a memory-based knowledge-based system for reasoning and querying OWL ontologies by implementing RDF/OWL entailments in the form of production rules order to apply formal semantics language. Our approach is based on transformation procedure into an object-oriented schema application inference over generated objects implement various OWL. enhance performance system, introduce dynamic generating ABOX incremental loading ontologies. O-DEVICE built CLIPS rule...
In this paper we describe SP-ACT, a hybrid framework for the derivation of high-level activity interpretations in context-aware environments, by defining combination OWL ontologies and SPARQL CONSTRUCT graph patterns. More specifically, native semantics is used to formally represent integrate activity-related information originated from different data sources, whereas (SPIN) rules further aggregate activities so as derive highlevel abstractions. The goal address limitations ontology-based...
Abstract IoT-based applications need to be dynamically orchestrated on cloud-edge infrastructures for reasons such as performance, regulations, or cost. In this context, a crucial problem is facilitating the work of DevOps teams in deploying, monitoring, and managing by providing necessary tools platforms. The SODALITE@RT open-source framework aims at addressing scenario. paper, we present main features : modeling resources using open standards infrastructural code, automated deployment,...
Interactive smart home systems are particularly useful for people with cognitive impairment.To investigate the long-term effects of Assistive Technology (AT) combined tailored non-pharmacological interventions impairment.18 participants (12 mild impairment and 6 Alzheimer's disease) took part in study that we evenly allocated one three groups: 1) experimental group (EG), 2) control 1 (CG1), 3) 2 (CG2). EG received system installed at 4 to 12 months, during which they according observations....
Participation in the labor market is seen as most important factor favoring long-term integration of migrants and refugees into society. This paper describes job recommendation framework Integration Migrants MatchER SErvice (IMMERSE). The proposed acts a matching tool that enables contexts individual refugees, including their expectations, languages, educational background, previous experience skills, to be captured ontology facilitate with opportunities available host country. Profile...
To implement Open Governance a crucial element is the efficient use of big amounts open data produced in public domain. Public administration rich source and potentially new knowledge. It intensive sector producing vast information encoded government decisions acts, published nowadays on World Wide Web. The knowledge shared Web mostly made available via semi-structured documents written natural language. exploit this knowledge, technologies such as Natural Language Processing, Information...