Now showing items 1-14 of 14

    • Activity recognition invariant to sensor orientation with wearable motion sensors 

      Yurtman, A.; Barshan, B. (MDPI AG, 2017)
      Most activity recognition studies that employ wearable sensors assume that the sensors are attached at pre-determined positions and orientations that do not change over time. Since this is not the case in practice, it is ...
    • Automatic performance evaluation of Web search engines 

      Can, F.; Nuray, R.; Sevdik, A. B. (Elsevier, 2004)
      Measuring the information retrieval effectiveness of World Wide Web search engines is costly because of human relevance judgments involved. However, both for business enterprises and people it is important to know the most ...
    • Bilkent Üniversitesi kurumsal arşivi "Institutional Repository" 

      Korkmaz, Taner (Bilkent University Library, 2015-04-28)
      Kurumsal arşiv sistemi, bilginin daha hızlı ve daha çok kişiye kolayca ulaştırılmasını, yeni çalışmalar için kaynaklara kolay erişim ayrıcalığının sağlanması, daha önce aynı konuda neler yapıldığının kolayca belirlenmesi, ...
    • Compression of images in CFA format 

      Cüce, Halil İbrahim; Çetin, Ahmet Enis; Davey, M. K. (IEEE, 2006)
      In this paper, images in Color Filter Array (CFA) format are compressed without converting them to full-RGB color images. Green pixels are extracted from the CFA image data and placed in a rectangular array, and compressed ...
    • Database research at Bilkent University 

      Ulusoy, Ö. (ACM, 2005)
      The research activities of the Database Research Group of Bilkent University are discussed. The research is mainly focused on the topics of multimedia databases, Web databases, and mobile computing. The Ottoman Archive ...
    • Efficient discovery of join plans in schemaless data 

      Acar, Aybar C.; Motro, A. (ACM, 2009-09)
      We describe a method of inferring join plans for a set of relation instances, in the absence of any metadata, such as attribute domains, attribute names, or constraints (e.g., keys or foreign keys). Our method enumerates ...
    • Implementation of a topic map data model for a Web-based information resource 

      Kutlutürk, Mustafa (Bilkent University, 2002)
      The Web has become a vast information resource in recent years. Millions of people use the Web on a regular basis and the number is increasing rapidly. The Web is the largest center in the world presenting almost all of ...
    • Integration of structural and semantic models for multimedia metadata management 

      Little, S.; Martinelli, M.; Salvetti, O.; Güdükbay, Uğur; Ulusoy, Özgür; De Chalendar, G.; Grefenstette, G. (IEEE, 2007-06)
      The management and exchange of multimedia data is challenging due to the variety of formats, standards and intended applications. In addition, production of multimedia data is rapidly increasing due to the availability of ...
    • Metadata extraction from text in soccer domain 

      Göktürk, Z. O.; Çiçekli, N. K.; Çiçekli, İlyas (IEEE, 2008-10)
      Event detection is a crucial part for soccer video searching and querying. The event detection could be done by video content itself or from a structured or semi structured text files gathered from sports web sites. In ...
    • Metadata-based modeling of information resources on the web 

      Özel, S. A.; Altingövde, S.; Ulusoy, Ö.; Özsoyoǧlu G.; Özsoyoǧlu, Z. M. (Wiley, 2004)
      This paper deals with the problem of modeling Web information resources using expert knowledge and personalized user information for improved Web searching capabilities. We propose a "Web information space" model, which ...
    • PetaShare: A reliable, efficient and transparent distributed storage management system 

      Kosar, T.; Akturk I.; Balman, M.; Wang X. (2011)
      Modern collaborative science has placed increasing burden on data management infrastructure to handle the increasingly large data archives generated. Beside functionality, reliability and availability are also key factors ...
    • Querying web metadata: Native score management and text support in databases 

      Özsoyoǧlu, G.; Altingövde, I. S.; Al-Hamdani, A.; Özel, S. A.; Ulusoy, Ö.; Özsoyoǧlu, Z. M. (Association for Computing Machinery, 2004)
      In this article, we discuss the issues involved in adding a native score management system to object-relational databases, to be used in querying Web metadata (that describes the semantic content of Web resources). The Web ...
    • Topic-Centric Querying of Web Information Resourcest 

      Altıngövde, İsmail Şengör; Özel, Selma A.; Ulusoy, Özgür; Özsoyoğlu G.; Özsoyoğlu, Z.M. (Springer, Berlin, Heidelberg, 2001)
      This paper deals with the problem of modeling web information resources using expert knowledge and personalized user information, and querying them in terms of topics and topic relationships. We propose a model for web ...
    • Turkish keyphrase extraction using KEA 

      Pala, Nagehan; Çiçekli, İlyas (IEEE, 2007-11)
      Keyphrases provide semantic metadata to summarize and characterize documents. Unfortunately, there are many digital documents especially on the Internet that do not have a list of assigned keyphrases. Assigning keyphrases ...