Browsing by Keywords "Information services"

Now showing items 1-11 of 11

    • Analyzing Turkish e-government websites by eye tracking 

      Albayrak, Duygu; Çaģiltay, K. (IEEE, 2013)
      Usability studies provide essential information about users' views and perceptions of efficiency, effectiveness and satisfaction of given online services. Nowadays, e-government web sites become popular. Therefore, there ...

    • Authorship attribution: performance of various features and classification methods 

      Bozkurt, İlker Nadi; Bağlıoğlu, Özgür; Uyar, Erkan (IEEE, 2007-11)
      Authorship attribution is the process of determining the writer of a document. In literature, there are lots of classification techniques conducted in this process. In this paper we explore information retrieval methods ...

    • Coaching engineering freshmen at Bilkent University 

      Özdemir, B. U.; Verhoeven, J. M.; Çelik, B. K. (Middle East Technical University, Faculty of Engineering, 2005)
      In September 2003, the Faculty of Engineering at Bilkent University created an office to help first year students adapt to university life and start their academic studies effectively. For each of the three Departments of ...

    • Cover coefficient-based multi-document summarization 

      Ercan, Gönenç; Can, Fazlı (Springer, 2009-04)
      In this paper we present a generic, language independent multi-document summarization system forming extracts using the cover coefficient concept. Cover Coefficient-based Summarizer (CCS) uses similarity between sentences ...

    • A graph based approach to estimating lexical cohesion 

      Gürkök, Hayrettin; Karamuftuoglu, Murat; Schaal, Markus (ACM, 2008)
      Traditionally, information retrieval systems rank documents according to the query terms they contain. However, even if a document may contain all query terms, this does not guarantee that it is relevant to the query. The ...

    • New event detection and topic tracking in Turkish 

      Can, F.; Kocberber, S.; Baglioglu, O.; Kardas, S.; Ocalan, H. C.; Uyar, E. (John Wiley & Sons, Inc., 2010)
      Topic detection and tracking (TDT) applications aim to organize the temporally ordered stories of a news stream according to the events. Two major problems in TDT are new event detection (NED) and topic tracking (TT). These ...

    • Novelty detection for topic tracking 

      Aksoy, C.; Can, F.; Kocberber, S. (John Wiley & Sons, Inc., 2012)
      Multisource web news portals provide various advantages such as richness in news content and an opportunity to follow developments from different perspectives. However, in such environments, news variety and quantity can ...

    • A practitioner's guide for static index pruning 

      Altıngövde, İsmail Şengör; Özcan, Rıfat; Ulusoy, Özgür (Springer, 2009-04)
      We compare the term- and document-centric static index pruning approaches as described in the literature and investigate their sensitivity to the scoring functions employed during the pruning and actual retrieval stages. ...

    • Site-based dynamic pruning for query processing in search engines 

      Altıngövde İsmail Şengör; Demir, Engin; Can, Fazlı; Ulusoy, Özgür (ACM, 2008-07)
      Web search engines typically index and retrieve at the page level. In this study, we investigate a dynamic pruning strategy that allows the query processor to first determine the most promising websites and then proceed ...

    • Stylistic document retrieval for Turkish 

      Zamalieva, Daniya; Kalaycılar, Fırat; Kale, Aslı; Pehlivan, Selen; Can, Fazlı (IEEE, 2009-09)
      In information retrieval (IR) systems, there are a query and a collection of documents compared with this query and ranked according to a particular similarity measure. Since texts with the same content can be written by ...

    • Turkish keyphrase extraction using multi-criterion ranking 

      Özdemir, Bahadır; Çiçekli, İlyas (IEEE, 2009-09)
      Keyphrases have been extensively used for indexing and searching in databases and information retrieval systems. In addition, they provide useful information about semantic content of a document. In this paper, we propose ...