Visualitza per autor "Kompatsiaris, Ioannis"

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  • Gialampoukidis, Ilias; Vrochidis, Stefanos; Kompatsiaris, Ioannis; Wanner, Leo (Springer, 2016)
    Nowadays there is an important need by journalists and media monitoring companies to cluster news in large amounts of web articles, in order to ensure fast access to their topics or events of interest. Our aim in this work ...
  • Gialampoukidis, Ilias; Moumtzidou, Anastasia; Liparas, Dimitris; Vrochidis, Stefanos; Kompatsiaris, Ioannis (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Nowadays, multimedia retrieval has become a task of high importance, due to the need for efficient and fast access to very large and heterogeneous multimedia collections. An interesting challenge within the aforementioned ...
  • Moumtzidou, Anastasia; Gialampoukidis, Ilias; Mironidis, Theodoros; Liparas, Dimitris; Vrochidis, Stefanos; Kompatsiaris, Ioannis (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    This paper presents an interactive multimedia search engine, which is capable of searching into multimedia collections by fusing textual and visual information. Apart from multimedia search, the engine is able to perform ...
  • Andreadis, Stelios; Stavropoulos, Thanos G.; Meditskos, Georgios; Kompatsiaris, Ioannis (CEUR Workshop Proceedings, 2016)
    With the ever-growing prevalence of dementia, nursing costs are in-creasing, while the ability to live independently vanishes. Dem@Home is an ambient assisted living framework to support independent living while receiv-ing ...
  • Meditskos, Georgios; Vrochidis, Stefanos; Kompatsiaris, Ioannis (Springer, 2017)
    We present a framework for semantic situation understand- ing and interpretation of multimodal data using Description Logics (DL) and rules. More precisely, we use DL models to formally describe contex- tualised ...
  • Doulaverakis, Charalampos; Vrochidis, Stefanos; Kompatsiaris, Ioannis (SCITEPRESS, 2015)
    Ontology alignment is the process where two different ontologies that usually describe similar domains are ’aligned’, i.e. a set of correspondences between their entities, regarding semantic equivalence, is determined. In ...
  • Gialampoukidis, Ilias; Vrochidis, Stefanos; Kompatsiaris, Ioannis (Springer, 2016)
    Most of the image retrieval approaches nowadays are based on the Bag-of-Words (BoW) model, which allows for representing an image efficiently and quickly. The efficiency of the BoW model is related to the efficiency of the ...
  • Gialampoukidis, Ilias; Moumtzidou, Anastasia; Liparas, Dimitris; Tsikrika, Theodora; Vrochidis, Stefanos; Kompatsiaris, Ioannis (Springer, 2017)
    Heterogeneous sources of information, such as images, videos, text and metadata are often used to describe di erent or complementary views of the same multimedia object, especially in the online news domain and in ...
  • Meditskos, Georgios; Kontopoulos, Efstratios; Vrochidis, Stefanos; Kompatsiaris, Ioannis (CEUR Workshop Proceedings (CEUR-WS.org), 2016)
    In this paper we present a framework for conversational awareness and conflict resolution in spoken dialogue systems for home care assistance. Conver-sational awareness is supported through OWL ontologies for capturing ...
  • Gialampoukidis, Ilias; Liparas, Dimitris; Vrochidis, Stefanos; Kompatsiaris, Ioannis (CEUR Workshop Proceedings, 2016)
    In this paper, we present a framework for topic detection in news articles. The framework receives as input the results retrieved from a query-based search and clusters them by topic. To this end, the recently introduced ...
  • Meditskos, Georgios; Dasiopoulou, Stamatia; Vrochidis, Stefanos; Kompatsiaris, Ioannis (ACM Association for Computer Machinery, 2016)
    In this paper we present an ontology-driven framework for natural language question analysis and answering over user models (e.g. preferences, habits and health problems of individuals) that are formally captured using ...
  • Gialampoukidis, Ilias; Moumtzidou, Anastasia; Tsikrika, Theodora; Vrochidis, Stefanos; Kompatsiaris, Ioannis (ACM Association for Computer Machinery, 2016)
    Searching for multimedia objects with heterogeneous modal- ities is critical for the construction of e ective multimedia retrieval systems. Towards this direction, we propose a framework for the multimodal fusion of visual ...
  • Gialampoukidis, Ilias; Vrochidis, Stefanos; Kompatsiaris, Ioannis; Antoniou, Ioannis (2017)
    Topic detection is usually considered as a decision process implemented in some relevant context, for example clustering. In this case, clusters correspond to topics that should be identifed. Density-based clustering, ...
  • Wanner, Leo; Blat, Josep; Dasiopoulou, Stamatia; Domínguez Bajo, Mónica; Llorach, Gerard; Mille, Simon; Sukno, Federico M.; Kamateri, Eleni; Kompatsiaris, Ioannis; Vrochidis, Stefanos; André, Elisabeth; Lingenfelser, Florian; Mehlmann, Gregor; Stam, Andries; Stellingwerff, Ludo; Lamel, Lori; Vieru, Bianca; Minker, Wolfgang; Pragst, Louisa; Ultes, Stefan (ACM Association for Computer Machinery, 2016)
    We present work in progress on an intelligent embodied conversation agent in the basic care and healthcare domain. In contrast to most of the existing agents, the presented agent is aimed to have linguistic cultural, social ...
  • Moumtzidou, Anastasia; Mironidis, Theodoros; Markatopoulou, Fotini; Andreadis, Stelios; Gialampoukidis, Ilias; Galanopoulos, Damianos; Ioannidou, Anastasia; Vrochidis, Stefanos; Mezaris, Vasileios; Kompatsiaris, Ioannis; Patras, Ioannis (Springer, 2017)
    This paper presents VERGE interactive video retrieval engine, which is capable of browsing and searching into video content. The system integrates several content-based analysis and retrieval modules including concept ...