Tweepcred: Clamp + Entropy Guard to prevent coordinated lists & brigades #15995
+38
−8
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…ades. ### Summary This patch hardens Tweepcred against coordinated blocklist brigades. ### Changes - Added `maxDailyNegDelta`, `normalCap`, and `attackCap` constants. - Added entropy/diversity guard: if <50% of issuers are unique, treat as a coordinated brigade. - Dynamic clamping: normal cap = -100, brigade cap = -20. - Added telemetry stubs: counters for brigade detection and clamp activations. ### Impact - Prevents a small group of accounts from collapsing a user’s Tweepcred in one batch run. - Protects small/new creators from coordinated brigading while still applying organic penalties. - Maintains organic feedback fidelity (diverse, independent blocks still count). - Provides clear telemetry for monitoring and future tuning. ### Notes - Backward-compatible: legacy one-line clamp retained. - All new constants are scoped private, safe defaults. - No changes to visibilitylib or ranking layers in this patch; this only touches Tweepcred batch reputation adjustment.
|
|
|
Did you really use ChatGPT to make this pull request? |
My original idea with a ChatGPT-5 + Grok-4 collab, lots of iterations until I was happy with it. Looking into taking it further with retroactive reach bumps and tracking. What do you think? |
infinitumsimias
changed the title
Adjusted reputation adjustment logic - Fix penalty direction: use (adjusted - baseMass) instead of (mass - adjusted) so brigades are penalized. - Replace log(log(numFollowings)) with log(log1p(numFollowings)) to avoid invalid math for small values. - Add input sanitization: guard against NaN/Infinity and negative follower/following counts; clamp mass to non-negative before scaling.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Changes
Impact
Notes