I assume that this question may be slightly too open ended, but I am curious to know how does hashing works when web search engines index web pages. What are the some of the common hash codes being used for that purpose?
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I assume that this question may be slightly too open ended, but I am curious to know how does hashing works when web search engines index web pages. What are the some of the common hash codes being used for that purpose?
For Sphinx Search Engine which is an extremely popular open source product and comparable to Lucene, the hash function used is CRC. It converts each word found in douments which it is indexing to a 32 bit/64 bit int using CRC.