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  1. Principal Component Analysis (PCA) - GeeksforGeeks

    Nov 13, 2025 · PCA (Principal Component Analysis) is a dimensionality reduction technique and helps us to reduce the number of features in a dataset while keeping the most important information. It …

  2. What is principal component analysis (PCA)? - IBM

    Principal component analysis, or PCA, reduces the number of dimensions in large datasets to principal components that retain most of the original information. It does this by transforming potentially …

  3. Principal component analysis - Wikipedia

    Principal component analysis (PCA) is a linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data preprocessing. The data are linearly transformed …

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  4. Principal Component Analysis (PCA): Explained Step-by-Step ...

    Jun 23, 2025 · Principal component analysis (PCA) is a technique that reduces the number of variables in a data set while preserving key patterns and trends. It simplifies complex data, making analysis …

  5. What is Principal Component Analysis (PCA) in ML? - Simplilearn

    Jun 9, 2025 · What is Principal Component Analysis (PCA)? The Principal Component Analysis is a popular unsupervised learning technique for reducing the dimensionality of large data sets. It …

  6. Principal Component Analysis - Machine Learning Plus

    Principal Components Analysis (PCA) is an algorithm to transform the columns of a dataset into a new set of features called Principal Components. By doing this, a large chunk of the information across …

  7. Understanding Principal Component Analysis (PCA) in Machine ...

    Sep 17, 2025 · Principal Component Analysis (PCA) is a dimensionality reduction technique used in machine learning and data analysis. It transforms large datasets with many features into smaller sets …