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<p><strong>Header Dictionary Triples</strong>, or <strong>HDT</strong>, is a binary serialization format for RDF
datasets. It is capable of compressing RDF data while maintaining search and
browse operations without prior decompression<sup><a href="#cit1">[cit1]</a></sup>. HDT is an open format in
progress of standardization<sup><a href="#cit2">[cit2]</a></sup>.</p>
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<h2 id="_hdt_tools">HDT tools</h2>
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<p><code>hdt-cpp</code> is a library and command-line tool to create and search HDT files<sup><a href="#cit3">[cit3]</a></sup></p>
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<p><code>hdt-java</code> allows integration of HDT with Apache Jena and Fuseki<sup><a href="#cit4">[cit4]</a></sup></p>
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<p><code>HDT-it!</code> is a GUI application for browsing HDT files, which includes a 3D
Visualization of the RDF adjacency matrix of the RDF Graph<sup><a href="#cit:5">[cit:5]</a></sup></p>
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<h2 id="_gallery">Gallery</h2>
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<video src="https://archive.dokk.org/videos/hdt-it-rdf-demo.mp4" width="20%" controls>
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<p><span class="image"><img src="https://archive.dokk.org/images/hdt-it-screenshot-1.png" alt="HDT-it!" width="20%" title="HDT-it!"></span>
<span class="image"><img src="https://archive.dokk.org/images/hdt-it-screenshot-2.png" alt="HDT-it!" width="20%" title="HDT-it!"></span></p>
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<h2 id="_references">References</h2>
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<p><a id="cit1"></a>[cit1] <a href="http://www.rdfhdt.org/what-is-hdt/" class="bare">http://www.rdfhdt.org/what-is-hdt/</a></p>
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<p><a id="cit2"></a>[cit2] <a href="https://www.w3.org/Submission/2011/03/" class="bare">https://www.w3.org/Submission/2011/03/</a></p>
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<p><a id="cit3"></a>[cit3] <a href="http://www.rdfhdt.org/manual-of-the-c-hdt-library/" class="bare">http://www.rdfhdt.org/manual-of-the-c-hdt-library/</a></p>
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<p><a id="cit4"></a>[cit4] <a href="http://www.rdfhdt.org/manual-of-hdt-integration-with-jena/" class="bare">http://www.rdfhdt.org/manual-of-hdt-integration-with-jena/</a></p>
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