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Stat., Theory Methods</a> <a href="/?q=in%3A523433" title="Articles in this Issue">54, No. 1, 84-97 (2025)</a>. </div> <div class="abstract">Summary: Rényi entropy has been widely used in many applications. However, the significance of the parameter \(\alpha\) in Rényi entropy and how to determine the value of \(\alpha\) is still an open issue. To explore the significance of \(\alpha\), a scaled Rényi entropy is proposed in this article, where \(\alpha\) is a scaled constant. Based on the information dimension of mass function in a power set whose uncertainty is measured by Deng entropy, the scale of \(\alpha\) in Rényi entropy of the probability distribution is determined. One numerical example is given to show its properties. The scaled Rényi entropy and Rényi entropy are then applied to the C 4.5 decision tree and active learning to compare the usefulness of scaled Rényi and Rényi entropy.</div> <div class="clear"></div> <div class="classification"> <h3>MSC:</h3> <table><tr> <td> <a class="mono" href="/classification/?q=cc%3A62-XX" title="MSC2020">62-XX</a> </td> <td class="space"> Statistics </td> </tr></table> </div><div class="keywords"> <h3>Keywords:</h3><a href="/?q=ut%3AR%C3%A9nyi+entropy">Rényi entropy</a>; <a href="/?q=ut%3Ascaled+R%C3%A9nyi+entropy">scaled Rényi entropy</a>; <a href="/?q=ut%3Adeng+entropy">deng entropy</a>; <a href="/?q=ut%3Ainformation+dimension">information dimension</a>; <a href="/?q=ut%3Adecision+tree">decision tree</a></div> <!-- Modal used to show zbmath metadata in different output formats--> <div class="modal fade" id="metadataModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button> <h4 class="modal-title" id="myModalLabel">Cite</h4> </div> <div class="modal-body"> <div class="form-group"> <label for="select-output" class="control-label">Format</label> <select id="select-output" class="form-control" aria-label="Select Metadata format"></select> </div> <div class="form-group"> <label for="metadataText" class="control-label">Result</label> <textarea class="form-control" id="metadataText" rows="10" style="min-width: 100%;max-width: 100%"></textarea> </div> <div id="metadata-alert" class="alert alert-danger" role="alert" style="display: none;"> <!-- alert for connection errors etc --> </div> </div> <div class="modal-footer"> <button type="button" class="btn btn-primary" onclick="copyMetadata()">Copy to clipboard</button> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> </div> </div> </div> </div> <div class="functions clearfix"> <div class="function"> <!-- Button trigger metadata modal --> <a type="button" class="btn btn-default btn-xs pdf" data-toggle="modal" data-target="#metadataModal" data-itemtype="Zbl" data-itemname="Zbl 07979569" data-ciurl="/ci/07979569" data-biburl="/bibtex/07979569.bib" data-amsurl="/amsrefs/07979569.bib" data-xmlurl="/xml/07979569.xml" > Cite </a> <a class="btn btn-default btn-xs pdf" data-container="body" type="button" href="/pdf/07979569.pdf" title="Zbl 07979569 as PDF">Review PDF</a> </div> <div class="fulltexts"> <span class="fulltext">Full Text:</span> <a class="btn btn-default btn-xs" type="button" href="https://doi.org/10.1080/03610926.2024.2301986" aria-label="DOI for “On the scaled Rényi entropy and application”" title="10.1080/03610926.2024.2301986">DOI</a> </div> <div class="sfx" style="float: right;"> </div> </div> <div class="references"> <h3>References:</h3> <table><tr> <td>[1]</td> <td class="space">Babajanyan, S., Allahverdyan, A., and Cheong, K. 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