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Standardize data text for machine learning


In machine learning, text data often requires standardization to ensure consistency and improve the performance of models. OtasML, a visual machine learning tool, includes a powerful Standardize Data Text feature within its data preparation model. This tool provides various options to transform text into a uniform format, making it easier to work with and analyze. This article explores the different text standardization methods available and how they can be configured to enhance your machine-learning workflows.


The Standardize Data Text tool in OtasML offers multiple methods to transform text data, allowing users to ensure consistency across their datasets. Below are the key configurations and options available:


  • Default Value: None

  • Description: This feature allows users to quickly transform text into a consistent format. The available standardization options include:

    • Lower: Converts all characters to lowercase. This is useful for normalizing text to a common case, making comparisons and analyses more straightforward.
    • Upper: Converts all characters to uppercase. This can be useful for emphasizing or standardizing case in certain applications.
    • Title: Converts the first character of each word to uppercase and the remaining characters to lowercase. This is ideal for formatting titles or headings.
    • Capitalize: Converts the first character of the text to uppercase and the remaining characters to lowercase. This option is useful for standardizing the case of sentences.
    • Swapcase: Converts uppercase characters to lowercase and lowercase characters to uppercase. This can be used for special formatting needs or to highlight case differences.
    • Casefold: Removes all case distinctions in the string, making it useful for case-insensitive comparisons.


  • Default Value: None
  • Description: The Subset option allows users to select specific columns for text standardization. This ensures that only the desired text fields are standardized, providing more control over the preprocessing step and allowing users to exclude columns that do not require transformation.

Interactive Buttons: Preview and Save

To enhance user experience and provide greater control over the text standardization process, the tool includes two essential buttons:

  • Preview: This button allows users to see the effects of the selected text standardization method in real-time without permanently applying the changes. By clicking Preview, users can visually assess how the text will be transformed based on the current configurations, ensuring that the standardization method is appropriate before committing to any changes.
  • Save: Once users are satisfied with their configurations and the preview results, they can click the Save button to permanently apply their chosen settings. This action saves the configuration, which will then be applied to the data during the training process, ensuring that the text standardization aligns with the user's expectations and requirements.


The Standardize Data Text tool in OtasML provides a robust solution for normalizing text data, a crucial step in many machine learning workflows. By offering a variety of text transformation methods and the ability to selectively apply them to specific columns, users can effectively tailor the preprocessing step to their specific needs. The inclusion of interactive Preview and Save buttons further enhances control and confidence in the text standardization process. OtasML continues to empower users with intuitive and powerful tools, making data preparation a seamless and integral part of the machine learning workflow.


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