Project Chorologos
CHOROLOGOS is a research project that is funded by the Hellenic Foundation for Research and Innovation (HFRI) and the General Secretariat for Research and Technology (GSRT), under grant agreement No [HFRI-FM17-81]. The instrument aims to support research of Academic Staff and Researchers, and the principal investigator of CHOROLOGOS is Christos Doulkeridis. The project is hosted at the Department of Digital Systems in the University of Piraeus.
- Formulation of expressive query types that enable selection of underlying spatio-temporal-textual data based on diverse information needs, going beyond exact or syntactical matching and towards semantic retrieval. Examples of such queries include similarity matching, pattern-based matching, as well as semantic similarity matching.
- Theoretical contributions in terms of properties and search bounds for the proposed query types, thus laying the foundations for efficient processing and search.
- Design of appropriate access methods that jointly index space, time, and text, in an appropriate way to support filtering of data that is irrelevant to the query at hand.
- Efficient query processing algorithms following well-established methodologies, including filter-and-refine and branch-and-bound, aiming at fast delivery of accurate query results.
- Parallel processing of the proposed query types, towards scalable algorithms that make the analysis of vast-sized data sets feasible in practice.
