Solr Digest, Spring-Summer 2011, Part 1
Don’t miss this issue of the Solr Digest.
It covers Solr releases 3.2, 3.3 and the upcoming 3.4 so there is no shortage of material. Part 2 is in the works.
Of particular interest to topic map authors will be the result grouping/field collapsing.
From the Apache wiki:
Field Collapsing and Result Grouping are different ways to think about the same Solr feature.
Field Collapsing collapses a group of results with the same field value down to a single (or fixed number) of entries. For example, most search engines such as Google collapse on site so only one or two entries are shown, along with a link to click to see more results from that site. Field collapsing can also be used to suppress duplicate documents.
Result Grouping groups documents with a common field value into groups, returning the top documents per group, and the top groups based on what documents are in the groups. One example is a search at Best Buy for a common term such as DVD, that shows the top 3 results for each category (“TVs & Video”,”Movies”,”Computers”, etc)
For example, collapsed results could be exported to a representation as a topic and either occurrences or associations of a particular type. Other uses will suggest themselves.
[…] Part 1 if you are […]
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