eHarmony and other dating sites are collaborating with big AI players like IBM Watson ???

https://singularityhub.com/2017/03/16/matchmaker-make-us-the-perfect-love-algorithm/
Big Five test is OBSOLETE.
eHarmony is a 16+ years old obsolete site. The success rate of eHarmony is less than 10%.
eHarmony is only supported by a big marketing budget and not by serious scientific evidence.
The Big Five normative test used by eHarmony, had been proven/revealed as an incomplete and incorrect model to assess/measure personality of persons.
Moreover eHarmony was copycatted in several countries like the online dating sites EliteSingles in Canada, Australia, USA, UK, Chile, Mexico; eDarling in Spain, German, France, Russia; also TeAmo in Russia is another copycat of eHarmony; esync (eSynchrony) in Singapore, MiMediaManzana in Colombia, Peru, Mexico, Chile, etc.
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/03/one-of-eharmony-cmo-marketers-are.html

BIG HOAX,  Watson IBM
http://onlinedatingsoundbarrier.blogspot.com.ar/2016/01/artificial-intelligence-can-watson-save.html

The Big Five normative personality test is obsolete, it has been proven as an incomplete and incorrect model of personality.
The HEXACO (a.k.a. Big Six) is another oversimplification. Online Dating sites have very big databases, in the range of 20,000,000 (twenty million) profiles, so the Big Five model or the HEXACO model are not enough for predictive purposes. That is why I suggest the 16PF5 test instead.

PAPER Game-based extraction of web users' personality factors for personalization
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/03/paper-game-based-extraction-of-web.html

Finally the perfect dating algorithm? Of course NOT, Big Five test is OBSOLETE.
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/02/finally-perfect-dating-algorithm-of.html

Please remember:
All Scientific Research shows: The key to long-lasting romance: COMPATIBILITY is STRICT PERSONALITY SIMILARITY and not "meet other people with similar interests". 
Inverse spike after New Year's Eve ? (via Alexa)
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/03/inverse-spike-after-new-years-eve-via.html
 

Lack Of Innovation & Decadence can summarize the Online Dating Industry.
C-Level executives are more worried about their golf scores than their company’s long term strategy and innovations.
C-level executives are cooking barbecues under the water (selling smoke) and not paying attention to latest research from Academics which could be beneficial for the Online Dating Industry.

 
Very easy to copycat eHarmony, but very difficult to innovate: a 100 times better algorithm than eHarmony.
http://onlinedatingsoundbarrier.blogspot.com.ar/2016/10/very-easy-to-copycat-eharmony-but-very.html  
  
Please read: The 8 tips to innovate in the Online Dating Industry!
http://onlinedatingsoundbarrier.blogspot.com.ar/2013/12/the-8-tips-to-innovate-in-online-dating.html