Although Google has yet to verify that the new algorithm is in use, the assumption that passage indexing is part of the SMITH algorithm is speculated by many.
It’s not unreasonable to assume that the SMITH algorithm upgrade includes Google passage indexing. SMITH thrives in understanding and reviewing passages, which seems to be coincidental.
In early January 2021, Google announced the existence of the SMITH algorithm. Researchers rapidly determined that SMITH outperforms BERT.
SMITH excels at comprehending long-form content, whereas BERT understands context within words.