Graph Modelling Language

<h2 id="example">Example</h2>
<p>A simple graph in GML format:
</p>
graph [
	comment "This is a sample graph"
	directed 1
	id 42
	label "Hello, I am a graph"
	node [
		id 1
		label "node 1"
		thisIsASampleAttribute 42
	]
	node [
		id 2
		label "node 2"
		thisIsASampleAttribute 43
	]
	node [
		id 3
		label "node 3"
		thisIsASampleAttribute 44
	]
	edge [
		source 1
		target 2
		label "Edge from node 1 to node 2"
	]
	edge [
		source 2
		target 3
		label "Edge from node 2 to node 3"
	]
	edge [
		source 3
		target 1
		label "Edge from node 3 to node 1"
	]
]

<h2 id="applications-supporting-gml">Applications supporting GML</h2>
<ul><li><a href="/facts/Cytoscape/XucQYzdf">Cytoscape</a>, an <a href="/facts/Open-source_license/FlFTwHmd">open source</a> <a href="/facts/List_of_bioinformatics_software/8n6pDy3q">bioinformatics software</a> platform for visualizing molecular interaction networks, loads and save previously-constructed interaction networks in GML.</li>
<li><a href="/facts/Igraph/lj11hE89">igraph</a>, an <a href="/facts/Open-source_license/FlFTwHmd">open source</a> network analysis library with interfaces to multiple programming languages.</li>
<li><a href="/facts/Gephi/4NqBTF6J">Gephi</a>, an <a href="/facts/Open-source_license/FlFTwHmd">open source</a> graph visualization and manipulation software.</li>
<li><a href="/facts/Graph-tool/zchHbj7N">Graph-tool</a>, a <a href="/facts/Free_software/IaoVtJXn">free</a> Python module for manipulation and statistical analysis of graphs.</li>
<li><a href="/facts/NetworkX/Vkq5Ljsh">NetworkX</a>, an <a href="/facts/Open-source_license/FlFTwHmd">open source</a> <a href="/facts/Python_(programming_language)/YbuGqofa">Python</a> library for studying complex graphs.</li>
<li><a href="/facts/Tulip_(software)/rTsbeuEV">Tulip (software)</a> is a free software in the domain of <a href="/facts/Information_visualisation/DSHteV85">information visualisation</a> capable of manipulating huge graphs (with more than 1.000.000 elements).</li>
<li><a href="/facts/YEd/KSB1xopt">yEd</a>, a free Java-based graph editor, supports import from and export to GML.</li>
<li>The <a href="/facts/Graphviz/nf5D4paX">Graphviz</a> project includes two command-line tools (gml2gv and gv2gml) that can convert to and from the <a href="/facts/DOT_(graph_description_language)/RbNL4cRd">DOT</a> file format.</li>
<li><a href="/facts/Wolfram_Language/MDxl50Yq">Wolfram Language</a>, a general very high-level programming language, supports <a href="https://reference.wolfram.com/language/ref/format/Graphlet.html">GML import and export</a>.</li></ul>
<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Graph_Query_Language/kcYjKMK4">Graph Query Language</a> (GQL)</li>
<li><a href="/facts/DGML/pIzyqn93">DGML</a></li></ul>

<h2 id="external-links">External links</h2>
<ul><li><a href="https://web.archive.org/web/20190303094704/http://www.fim.uni-passau.de:80/fileadmin/files/lehrstuhl/brandenburg/projekte/gml/gml-technical-report.pdf">GML: A portable Graph File Format</a>, Michael Himsolt - 2010/11/30 (<a href="https://web.archive.org/web/20190303094704/http://www.fim.uni-passau.de:80/fileadmin/files/lehrstuhl/brandenburg/projekte/gml/gml-technical-report.pdf">archived version</a>)</li>
<li>Unravelling Graph-Exchange File Formats, by Matthew Roughan and Jonathan Tuke, 2015, <a href="https://arxiv.org/pdf/1503.02781.pdf">https://arxiv.org/pdf/1503.02781.pdf</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Plenz, M., Frank, A., Graph Language Models, 2401.07105, cs.CL, 2024, https://arxiv.org/abs/2401.07105, access date: 2025-07-03 <a href="https://arxiv.org/abs/2401.07105" target="_blank">https://arxiv.org/abs/2401.07105</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
</ol>

Graph Modelling Language open-in-new

Graph Modelling Language