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| <div class="left-nav__overlay"></div> |
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| |
| <article data-swiftype-index='true'> |
| <a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/machine-learning/preprocessing.adoc" target="_blank">Edit</a> |
| |
| <h1>Preprocessing</h1> |
| |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Preprocessing is required to transform raw data stored in an Ignite cache to the dataset of feature vectors suitable for further use in a machine learning pipeline.</p> |
| </div> |
| <div class="paragraph"> |
| <p>This section covers algorithms for working with features, roughly divided into the following groups:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Extracting features from “raw” data</p> |
| </li> |
| <li> |
| <p>Scaling features</p> |
| </li> |
| <li> |
| <p>Converting features</p> |
| </li> |
| <li> |
| <p>Modifying features</p> |
| </li> |
| </ul> |
| </div> |
| <div class="admonitionblock note"> |
| <table> |
| <tr> |
| <td class="icon"> |
| <div class="title">Note</div> |
| </td> |
| <td class="content"> |
| Usually it starts from label and feature extraction via vectorizer usage and can be complicated with other preprocessing stages. |
| </td> |
|