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    Lecture 2 Image Classification

    Tags:   DeepLearning    CS231n   
    • The Main Problem: Semantic Gap(to computer, it’s just a gigantic grid(matrix) of numbers) Semantic Gap
    • Visual recognition algorithm must be robust with
      • Lighting conditions
      • Location of camera
      • Brightness
      • Deformation
      • Occlusion
      • Background
      • Intraclass variation
      • Various labels
    • Data-driven approach: Train bunch of data, then predict given test data for pre-knowledge from train data
    • Nearest Neighbor
    • K-Nearest Neighbor