Browsing Βιβλιοθηκονομία και Επιστήμη της Πληροφόρησης / Library and Information Science by Subject "Zero-hit queries"

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    • ACM International Conference Proceeding Series 

      Καπιδάκης, Σαράντος; Μάστορα, Άννα; Kapidakis, Sarantos; Mastora, Anna (2012)
      The purpose of this study is to examine the Google facets, namely the suggestions found occasionally under the section "Searches related to" on the Google results page. The study focuses on whether they constitute good ...

    • Query expansion of zero-hit subject searches: using a thesaurus in conjunction with NLP techniques 

      Καπιδάκης, Σαράντος; Μάστορα, Άννα; Πεπονάκης, Μανώλης; Kapidakis, Sarantos; Mastora, Anna; Peponakis, Manolis (2012)
      The focus of our study is zero-hit queries in keyword subject searches and the effort of increasing recall in these cases by reformulating and, then, expanding the initial queries using an external source of knowledge, ...

    • Using Google™ facets as implicit feedback for query expansion in database searching 

      Καπιδάκης, Σαράντος; Μάστορα, Άννα; Kapidakis, Sarantos; Mastora, Anna (2012)
      The purpose of this study is to examine the Google facets, namely the suggestions found occasionally under the section "Searches related to" on the Google results page. The study focuses on whether they constitute good ...