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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.