[jira] [Created] (STANBOL-1054) Add support for MLT queries over URIs

["Rupert Westenthaler (JIRA)" <ji...@apache.org>]

Rupert Westenthaler created STANBOL-1054:
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             Summary: Add support for MLT queries over URIs
                 Key: STANBOL-1054
                 URL: https://issues.apache.org/jira/browse/STANBOL-1054
             Project: Stanbol
          Issue Type: Sub-task
          Components: Enhancement Engines, Entityhub
            Reporter: Rupert Westenthaler
            Assignee: Rupert Westenthaler


Currently MLT queries do expect a textual context. However when disambiguation concepts of a knowledge base a similarity search over a field with referenced (related) concepts would be preferable computed over the list of concept URIs instead of their Labels.

For this to work

* the Similarity Constraint needs to be extended to provide information about the DataType of the context
* the MLT implementation of the SolrYard needs to be extended to correctly process the type so that it does search in the correct Solr fields
* the Solr Field type used by the default Solr schema.xml of the Entityhub needs to be changed so that a whitespace tokenizer is used for the URI field at query time (to split multiple URIs parsed in the context of MLT queries)

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