Now showing items 1-20 of 28

  • Application development: Fly to the clouds or stay in-house? 

    Bibi, S.; Katsaros, D.; Bozanis, P. (2010)
    Cloud computing is a recent trend in IT that moves computing and data away from desktop and portable PCs into large data centers, and outsources the "applications" (hardware and software) as services over the Internet. ...
  • Business Application Acquisition: On-Premise or SaaS-Based Solutions? 

    Bibi, S.; Katsaros, D.; Bozanis, P. (2012)
  • Categorical range queries in large databases 

    Nanopoulos, A.; Bozanis, P. (2003)
    In this paper, we introduce the categorical (a.k.a. chromatic) range queries (CRQs) in the context of large, disk-resident data sets, motivated by the fact, that CRQs are conceptually simple and emerge often in DBMSs. On ...
  • Computing scientometrics in large-scale academic search engines with MapReduce 

    Akritidis, L.; Bozanis, P. (2012)
    Apart from the well-established facility of searching for research articles, the modern academic search engines also provide information regarding the scientists themselves. Until recently, this information was limited to ...
  • Effective rank aggregation for metasearching 

    Akritidis, L.; Katsaros, D.; Bozanis, P. (2011)
    Nowadays, mashup services and especially metasearch engines play an increasingly important role on the Web. Most of users use them directly or indirectly to access and aggregate information from more than one data sources. ...
  • Effective ranking fusion methods for personalized metasearch engines 

    Akritidis, L.; Katsaros, D.; Bozanis, P. (2008)
    Metasearch engines are a significant part of the information retrieval process. Most of Web users use them directly or indirectly to access information from more than one data sources. The cornerstone of their technology ...
  • The f Index: Quantifying the Impact of Coterminal Citations on Scientists' Ranking 

    Katsaros, D.; Akritidis, L.; Bozanis, P. (2009)
    Designing fair and unbiased metrics to measure the "level of excellence" of a scientist is a very significant task because they recently also have been taken into account when deciding faculty promotions, when allocating ...
  • How to choose the right cloud 

    Bibi, S.; Katsaros, D.; Bozanis, P. (2011)
    Cloud computing is a recent trend in IT that moves computing and data away from desktop and portable PCs into large data centers, and outsources the "applications" (hardware and software) as services over the Internet. ...
  • Identifying attractive research fields for new scientists 

    Akritidis, L.; Katsaros, D.; Bozanis, P. (2012)
    Prior to the beginning of a scientific career, every new scientist is obliged to confront the critical issue of defining the subject area where his/her future research will be conducted. Regardless of the capabilities of ...
  • Identifying influential bloggers: Time does matter 

    Akritidis, L.; Katsaros, D.; Bozanis, P. (2009)
    Blogs have recently become one of the most favored services on the Web. Many users maintain a blog and write posts to express their opinion, experience and knowledge about a product, an event and every subject of general ...
  • Identifying the Productive and Influential Bloggers in a Community 

    Akritidis, L.; Katsaros, D.; Bozanis, P. (2011)
    Social networking has become one of the most important trends on the Web, leading to the development of several social applications such as blogs. Blogs are locations on the Web where individuals are provided with the ...
  • Improved retrieval effectiveness by efficient combination of term proximity and zone scoring: A simulation-based evaluation 

    Akritidis, L.; Katsaros, D.; Bozanis, P. (2012)
    During the past few years, the commercial Web search engines have augmented their underlying index structures by significantly enriching the information which describes the appearance of a word within a document Dean (2009) ...
  • Improving opinionated blog retrieval effectiveness with quality measures and temporal features 

    Akritidis, L.; Bozanis, P. (2014)
    The massive acceptance and usage of the blog communities by a significant portion of the Web users has rendered knowledge extraction from blogs a particularly important research field. One of the most interesting related ...
  • iMuse Mobile Tour: A personalized multimedia museum guide opens to groups 

    Fevgas, A.; Tsompanopoulou, P.; Bozanis, P. (2011)
    In the recent years, there is a growing interest in exploiting the advances of mobile and pervasive computing to museum environments. A mobile museum guide, named iMuse Mobile Tour is presented in this paper. The guide ...
  • The iMuse virtual museum: Towards a cultural education platform 

    Fevgas, A.; Fraggogiannis, N.; Tsompanopoulou, P.; Bozanis, P. (2014)
    In the recent years, there is an extremely growing interest for the digitalization of museums through the utilization of Information and Communication Technologies (ICTs). A virtual museum platform, named iMuse is presented ...
  • Interpolating the air for optimizing wireless data broadcast 

    Tsakiridis, F.; Bozanis, P.; Katsaros, D. (2007)
    Energy conservation and access efficiency are two fundamental though competing goals in broadcast wireless networks. To tackle the energy penalty from sequential searching, the interleaving of index with data items has ...
  • LR-tree: A logarithmic decomposable spatial index method 

    Bozanis, P.; Nanopoulos, A.; Manolopoulos, Y. (2003)
    Since its introduction in 1984, R-tree has been proven to be one of the most practical and well-behaved data structures for accommodating dynamic massive sets of geometric objects and conducting a very diverse set of queries ...
  • Merging R-trees 

    Vasaitis, V.; Nanopoulos, A.; Bozanis, P. (2004)
    R-trees, since their introduction in 1984, have been proven to be one of the most well-behaved practical data structures for accommodating dynamic massive sets of geometric objects and conducting a diverse set of queries ...
  • Modern web technologies 

    Akritidis, L.; Katsaros, D.; Bozanis, P. (2011)
    Nowadays, World Wide Web is one of the most significant tools that people employ to seek information, locate new sources of knowledge, communicate, share ideas and experiences or even purchase products and make online ...
  • A network aware privacy model for online requests in trajectory data 

    Gkoulalas-Divanis, A.; Verykios, V. S.; Bozanis, P. (2009)
    In this work, we propose a privacy model for online user requests on trajectory data in location based services by utilizing an underlying network of user movement. The privacy model has been implemented as a framework ...