Large syndication networks must detect scraped or slightly rephrased content across millions of incoming feed items using near-duplicate detection algorithms.
1. Deduplication Pipeline
- K-Shingle Parsing: Breaking text into overlapping 5-word token shingles to capture linguistic structure.
- MinHash Fingerprinting: Compressing huge shingle sets into 128-byte hash signatures using universal hashing functions.
- LSH Bucketing: Partitioning signatures into hash buckets to find 85%+ identical documents in sub-millisecond lookups.