I'm new to ElasticSearch and just started learning about it. I'm
wondering if the relevancy scores reflect the global score i.e. lets say if
we are using simple TF-IDF as our relevance measure, is the TF-IDF computed
across all the documents for the index (across all shards) or only for that
shard ?
Also, how does some of the search parameters like rows, sort by etc.. work
across shards.
By default, TFIDF values are calculated per shard. You can change your
query to use distributed term frequencies across an index. For more
information, see the documentation on search types:
I'm new to Elasticsearch and just started learning about it. I'm
wondering if the relevancy scores reflect the global score i.e. lets say if
we are using simple TF-IDF as our relevance measure, is the TF-IDF computed
across all the documents for the index (across all shards) or only for that
shard ?
Also, how does some of the search parameters like rows, sort by etc.. work
across shards.
On Mon, Sep 23, 2013 at 11:53 AM, Phani Chaitanya <pvempa...@gmail.com<javascript:>
wrote:
Hi,
I'm new to Elasticsearch and just started learning about it. I'm
wondering if the relevancy scores reflect the global score i.e. lets say if
we are using simple TF-IDF as our relevance measure, is the TF-IDF computed
across all the documents for the index (across all shards) or only for that
shard ?
Also, how does some of the search parameters like rows, sort by etc..
work across shards.
Thanks.
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