SD_social / README.md
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Step 1 - Scraping Data

  • Utilizes the CivitAI API with cursor-based pagination to fetch image data over a two-year period.
  • Saves progress in cursors.txt to resume scraping from the last retrieved point, avoiding redundant requests.
  • Stores data in timestamped directories, organizing results into manageable batches of 50,000 images per session.
  • Handles API constraints efficiently, with planned improvements for retrying failed requests.

Step 2 - Normalizing Engagement Scores

Penalty (Time Penalty)

  • Purpose: To reduce the influence of older posts by applying a decay based on how long the content has been on the platform.
  • Formula: ( \text{timePenalty} = \frac{1}{1 + \log(\text{daysOnPlatform} + \text{offset})} )
    • Logarithmic Decay: Older posts (higher daysOnPlatform) have smaller penalty values.
    • Offset: Ensures stability and avoids division by zero or undefined log values.
  • Effect:
    • Recent posts get higher scores.
    • Older posts are de-emphasized in engagement calculation.

Normalizing (Reactions Normalization)

  • Purpose: To scale raw social reaction values into a standardized range (0–1), enabling comparisons.
  • Method: Min-Max Scaling
    • Formula: ( \text{normalizedReactions} = \frac{\text{value} - \text{min}}{\text{max} - \text{min}} )
    • Adjusts all reaction values relative to the minimum and maximum in the dataset.
  • Effect:
    • Converts raw reaction values into a uniform scale.
    • Ensures different ranges of reactions are treated fairly in further calculations.