Status: IN
The web crawler achieves comprehensive deduplication through three coordinated layers: URL normalization at ingestion boundaries, Bloom filter for O(k) exact-URL rejection, and SimHash for near-duplicate content detection.
Each layer catches what the others miss — normalization handles canonicalization, Bloom handles exact revisits, SimHash handles content clones
Depends on (SL): crawler-layered-dedup-bloom-then-simhash, bloom-filter-prevents-frontier-duplicates, crawler-normalize-once-convention