Browsing Conference papers by Author "Chatzichristofis, Savvas A."

Now showing items 1-5 of 5

  • DUTH at ImageCLEF 2011 Wikipedia Retrieval 

    Arampatzis, Avi; Zagoris, Konstantinos; Chatzichristofis, Savvas A. (ImageClef, Wikipedia Retrieval Task, 2011)
    As digital information is increasingly becoming multimodal, the days of single-language text-only retrieval are numbered. Take as an example Wikipedia where a single topic may be covered in several languages and include ...

  • A Fuzzy Rank-Based Late Fusion Method for Image Retrieval 

    Chatzichristofis, Savvas A.; Zagoris, Konstantinos; Boutalis, Yiannis; Arampatzis, Avi (Springer-Verlag, 2012)
    Rank-based fusion is indispensable in multiple search setups in lack of item retrieval scores, such as in meta-search with non-cooperative engines. We introduce a novel, simple, and efficient method for rank-based late ...

  • Image Encryption Using the Recursive Attributes of the eXclusive-OR Filter on Cellular Automata 

    Chatzichristofis, Savvas A.; Marques, Oge; Mathias, Lux; Boutalis, Yiannis (Springer-Verlag, 2012)
    A novel visual multimedia content encryption method based on cellular automata (CA) is presented in this paper. The proposed algorithm is based on an attribute of the eXclusive-OR (XOR) logic gate, according to which, ...

  • The NOPTILUS project: Autonomous Multi-AUV Navigation for Exploration of Uknown Environments ★ 

    Chatzichristofis, Savvas A.; Kapoutsis, A.; Kosmatopoulos, E. B.; Doitsidis, L.; Rovas, D.; Borges de Sousa, Joao (IFAC (International Federation of Automatic Control), 2013)
    Current multi-AUV systems are far from being capable of fully autonomously taking over real-life complex situation-awareness operations. As such operations require advanced reasoning and decision-making abilities, current ...

  • TsoKaDo: An Image Search Engine Performing Recursive Query Recommendation Based on Visual Information 

    Tsochatzidis, Lazaros T.; Kapoutsis, Athanasios Ch.; Dourvas, Nikos I.; Chatzichristofis, Savvas A.; Boutalis, Yiannis; Zagoris, Konstantinos (IARIA, 2012)
    This paper tackles the problem of the user’s incapability to describe exactly the image that he seeks by introducing an innovative image search engine called TsoKaDo. Until now the traditional web image search was based ...