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<!-- WebDoc-Page-Title: _(Citation Metrics)_ -->
<!-- WebDoc-Page-Navtrail: <a class="navtrail" href="<CFG_SITE_URL>/help/<lang:link/>">_(Help Central)_</a> -->
<!-- WebDoc-Page-Revision: $Id$ -->

    <p>
     <lang>
      <en>
       These are descriptions of (and information about) the citation metrics
       available in Invenio.
      </en>
     </lang>
    </p>

    <p>
     <lang>
      <en>
       We currently display the following citation statistics for any group of papers</p>
      </en>
     </lang>
    </p>

    <dl>
     <dt>
      <lang>
       <en>
        Total number of citable papers analyzed
       </en>
      </lang>
     </dt>
     <dd>
      <lang>
       <en>
        This is simply the number of papers from your search that were counted in
        the HTML citesummary.  This is the number used for averages, etc.  Other papers
        may have been found, but may not have been eligible for citation tracking.
       </en>
      </lang>
     </dd>

    <dl>
     <dt>
      <lang>
       <en>
        Total number of citations
       </en>
      </lang>
     </dt>
     <dd>
      <lang>
       <en>
        Simply the total number of citations to the papers in your search.
       </en>
      </lang>
     </dd>

    <dl>
     <dt>
      <lang>
       <en>
        Average citations per paper
       </en>
      </lang>
     </dt>
     <dd>
      <lang>
       <en>
        The above two numbers as a ratio.
       </en>
      </lang>
     </dd>

    <dl>
     <dt>
       <a name="citesummary_h-index">
        <lang>
         <en>h-index</en>
        </lang>
       </a>
     </dt>
     <dd>
      <lang>
       <en>
        The h-index (or simply, 'h') is defined as the number of papers with citation
        number higher or equal to h.  It is intended as a useful index to characterize the
        scientific output of a researcher.  First proposed by Hirsch in <a
        href="http://inspire-hep.net/record/690567">physics/0508025</a>, it is
        explained better there than here.
       </en>
      </lang>
     </dd>