IDEAS home Printed from
   My bibliography  Save this article

HERMES: A Trajectory DB Engine for Mobility-Centric Applications


  • Nikos Pelekis

    (Department of Statistics and Insurance Science, University of Piraeus, Piraeus, Greece)

  • Elias Frentzos

    (Department of Informatics, University of Piraeus, Piraeus, Greece)

  • Nikos Giatrakos

    (Department of Informatics, University of Piraeus, Piraeus, Greece)

  • Yannis Theodoridis

    (Department of Informatics, University of Piraeus, Piraeus, Greece)


This paper presents HERMES, a prototype DB engine that defines a powerful query language for trajectory databases, which enables the support of mobility-centric applications, such as Location-Based Services (LBS). HERMES extends the data definition and manipulation language of Object-Relational DBMS (ORDBMS) with spatio-temporal semantics and functionality based on advanced spatio-temporal indexing and query processing techniques. Its implementation over two ORDBMS and its utilization in various domains proves the expressive power and applicability of HERMES in different application domains where knowledge regarding mobility data is essential. As a proof-of-concept, in this paper HERMES is applied to a case study related with vehicle traffic analysis, demonstrating its flexibility and usefulness for delivering custom-defined LBS.

Suggested Citation

  • Nikos Pelekis & Elias Frentzos & Nikos Giatrakos & Yannis Theodoridis, 2015. "HERMES: A Trajectory DB Engine for Mobility-Centric Applications," International Journal of Knowledge-Based Organizations (IJKBO), IGI Global, vol. 5(2), pages 19-41, April.
  • Handle: RePEc:igg:jkbo00:v:5:y:2015:i:2:p:19-41

    Download full text from publisher

    File URL:
    Download Restriction: no

    More about this item


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:igg:jkbo00:v:5:y:2015:i:2:p:19-41. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Journal Editor). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.