Google has been granted a patent that describes in detail about the process of finding out substitute queries and helping the users get exactly what they are looking for? This is not the same as “finding out synonyms”, but instead, substitute terms match the main query word after determining its context using various methods.
The Process of Finding Out Substitute Queries
Step 1 – The search query enters the query revision engine.
Step 2 – The query revisers finds out the candidate substitute terms according to various criteria.
Step 3 – A substitute query is found out by determining and comparing the co-occurrence frequencies of the candidate substitute term with the co-occurrence frequencies of the main query term.
What are Co-occurrence Frequencies?
Google compares the occurrence of words that are contained in the original document with the words contained in the document where the candidate substitute query exists. This is done by constructing vectors and comparing the vectors together.
Here is a summary of the patent that will make things more clear.
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Full Patent information can be viewed here:-
Evaluation of substitute terms
| Inventors: | Ikeda; Daisuke (Tokyo, JP), Yang; Ke (Cupertino, CA) | ||||||||||
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| Applicant: |
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| Assignee: | Google Inc. (Mountain View, CA) | ||||||||||
| Appl. No.: | 13/438,743 | ||||||||||
| Filed: | April 3, 2012 |
Recommended Reading:– Google May Substitute Query Terms with Co-occurrence
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