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International Journal For Multidisciplinary Research
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Volume 6 Issue 4
July-August 2024
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Refining Face Recognition: Maximizing Performance with Dimensionality Reduction and Ensemble Learning in K-Nearest Neighbors
Author(s) | Chethan TS, Abheesh Puthukkudy |
---|---|
Country | India |
Abstract | In the field of image classification, the K-Nearest Neighbors (KNN) algorithm is favored for its simplicity and effectiveness. However, the high dimensionality of image data often challenges KNN’s performance. This study investigates the impact of three dimensionality reduction techniques—Principal Component Analysis (PCA), Uniform Manifold Approximation and Projection (UMAP), and Linear Discriminant Analysis (LDA)—on enhancing KNN’s accuracy and efficiency in image classification, where KNN and Bagging classifier is computed without using any library but only using mathematical formulation. Additionally, the study examines the effect of ensemble learning, specifically through bagging, on KNN's performance. |
Keywords | K-Nearest Neighbors, Image Classification, PCA, UMAP, LDA, Bagging, Dimensionality Reduction, Machine Learning |
Field | Computer > Artificial Intelligence / Simulation / Virtual Reality |
Published In | Volume 6, Issue 3, May-June 2024 |
Published On | 2024-06-01 |
Cite This | Refining Face Recognition: Maximizing Performance with Dimensionality Reduction and Ensemble Learning in K-Nearest Neighbors - Chethan TS, Abheesh Puthukkudy - IJFMR Volume 6, Issue 3, May-June 2024. DOI 10.36948/ijfmr.2024.v06i03.21799 |
DOI | https://doi.org/10.36948/ijfmr.2024.v06i03.21799 |
Short DOI | https://doi.org/gtxrp4 |
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