The document discusses improvements made to the VIVO search engine between versions 1.2.1 and 1.3. Version 1.3 transitioned from Lucene to SOLR, allowing it to index additional data from semantic relationships and interconnectivity. This enriched the search index and provided more relevant results with better ranking compared to version 1.2.1. Indexing was also improved through multithreading, reducing indexing time. Experiments were discussed to further enhance search quality through techniques like query expansion, spelling correction, and using ontologies for fact-based questioning.

1. Improving VIVO search results through Semantic Ranking. Anup Sawant Deepak Konidena

4. How does the semantic graph look like with the presence of context nodes?

6. Lucene field for an Individual. And here's why

10. Search Index Architecture: Enriching with Semantic Relations. Overall connectivity of an Individual (ß) Apache Solr Relevant Documents. Dismax Query Handler. Indexing Phase Sparql Proper Boosts Searching Phase Multithreaded.

11. Real-time Indexing: Enriching with Semantic Relations. Overall connectivity of an Individual (ß) Apache Solr Relevant Documents. Dismax Query Handler. Indexing Phase Sparql Proper Boosts Searching Phase ADD/EDIT/DELETE of an Individual or its properties. The changes occur in real time and propagate beyond intermediate nodes. Multithreaded.

15. Understanding how it happens .. institute cornell loring V1 V2 θ Euclidean distance Cosine distance

16. Understanding how it happens .. institute cornell loring V2 θ V1 Euclidean distance increases, Cosine distance remains the same

17. Query vector distance from Cluster Mean vectors

18. User testing for Relevance

19. Precision and Recall Total Relevant Total Retrieved Precision = X / (Total Retrieved) Recall = X / (Total Relevant) X

20. Precision-Recall graphs based on User Analysis.

21. Cluster Analysis for Relevance

22. Precision-Recall graphs based on Cluster Analysis

23. Query vector distance from individual search result vectors

29. Team Work…