viggen - 8:21 am on Mar 13, 2011 (gmt 0)

What do you think makes the big re-rankings differ from everflux? Is it more likely to be a significant algo change, rather than just the processing of new crawl data?

everflux --> constant reranking based on existing algo-rules,
big-reranking -->introducing of new or changed algo-rules,

thats how i understand it...

cheers
viggen