The author does not know that Oracle already structures unstructured data:
1. Oracle obtains statistics on queries and data from the data itself, internally'.
3. Oracle gets 100% patterns from data.
4. Oracle uses synonyms searching.
5. Oracle indexes data by common dictionary.
6. Oracle killed SQL, which either does not use statistics at all or uses manually assigned one.

Oracle owns Big Data and any data, Oracle puts Internet into database.

'Normally, terms in an index are automatically weighted based on their distribution in the indexed content. ' https://docs (dot) oracle (dot) com/cd/E24152_01/Search.10-1/ATGSearchAdmin/html/s1007understandingtermweights01.html
The first time ever Oracle is able to calculate weights: Oracle structures unstructured data.