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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="en" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p><b>node2vec</b> is an algorithm to generate vector representations of nodes on a <a href="Graph_theory" title="Graph theory">graph.</a> The <i>node2vec</i> framework learns low-dimensional representations for nodes in a graph through the use of <a href="Random_walk" title="Random walk">random walks</a> through a graph starting at a target node. It is useful for a variety of <a href="Machine_learning" title="Machine learning">machine learning</a> applications. <i>node2vec</i> follows the intuition that random walks through a graph can be treated like sentences in a corpus. Each node in a graph is treated like an individual word, and a random walk is treated as a sentence. By feeding these "sentences" into a <a href="N-gram" title="N-gram">skip-gram</a>, or by using the <a href="Bag-of-words_model" title="Bag-of-words model">continuous bag of words</a> model, paths found by random walks can be treated as sentences, and traditional data-mining techniques for documents can be used. The algorithm generalizes prior work which is based on rigid notions of network neighborhoods, and argues that the added flexibility in exploring neighborhoods is the key to learning richer representations of nodes in graphs.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>

The algorithm is considered one of the best graph classifiers.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

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<ul><li><a href="Struc2vec" title="Struc2vec">Struc2vec</a></li>

<li><a href="Graph_neural_network" title="Graph neural network">Graph Neural Network</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite id="CITEREFGroverLeskovec2016" class="citation book cs1">Grover, Aditya; Leskovec, Jure (2016). "Node2vec". <i>Proceedings of the 22nd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining</i>. Vol. 2016. pp. <span class="nowrap">855–</span>864. <a href="ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/1607.00653">1607.00653</a></span>. <a href="Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2016arXiv160700653G">2016arXiv160700653G</a>. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1145%2F2939672.2939754">10.1145/2939672.2939754</a>. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>9781450342322</bdi>. <a href="PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a> <span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5108654">5108654</a></span>. <a href="PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/27853626">27853626</a>.</cite></span>

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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite id="CITEREFKhoslaSettyAnand2020" class="citation journal cs1">Khosla, Megha; Setty, Vinay; Anand, Avishek (2020). "A Comparative Study for Unsupervised Network Representation Learning". <i>IEEE Transactions on Knowledge and Data Engineering</i>: 1. <a href="ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/1903.07902">1903.07902</a></span>. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1109%2Ftkde.2019.2951398">10.1109/tkde.2019.2951398</a>. <a href="S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:207870054">207870054</a>.</cite></span>

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