6.7. Find friends based on similar tagging

Figure 6.7. Graph

To find people similar to me based on the taggings of their favorited items, one approach could be:

  • Determine the tags associated with what I favorite.
  • What else is tagged with those tags?
  • Who favorites items tagged with the same tags?
  • Sort the result by how many of the same things these people like.

Parameters 

{ }

Query 

MATCH
  (me)-[:favorite]->(myFavorites)-[:tagged]->(tag)<-[:tagged]-(theirFavorites)<-[:favorite]-(people)
WHERE me.name = 'Joe' AND NOT me=people
RETURN people.name AS name, count(*) AS similar_favs
ORDER BY similar_favs DESC

The query returns the list of possible friends ranked by them liking similar stuff that are not yet friends.

Result

namesimilar_favs
2 rows

"Sara"

2

"Derrick"

1