lly manageable number)</p>

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<h2 id="Vocab-size">Vocab size<a class="anchor-link" href="#Vocab-size">&#182;</a></h2><p>One of the main benefit of this method, is the size of the vocabulary. 
For example, using keywords that repeat at least 10 times, for the Epistemonikos dataset (827,341 title/abstract), we got the following vocab size:</p>
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