A publication record could contain a new "Similar records" widget that displays links to the 5 or 10 (say) most similar records based on key fields like the paper title and abstract. See the blog article Similar document search with OpenSearch. The More Like This (MLT) query would probably be sufficient and easier to implement. Note that the search can be sped up by storing term statistics at index time using "term_vector": "yes" for the relevant fields in the index mapping.
A publication record could contain a new "Similar records" widget that displays links to the 5 or 10 (say) most similar records based on key fields like the paper title and abstract. See the blog article Similar document search with OpenSearch. The More Like This (MLT) query would probably be sufficient and easier to implement. Note that the search can be sped up by storing term statistics at index time using
"term_vector": "yes"for the relevant fields in the index mapping.