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From Kasper Bjerke <>
Subject Re: E-commerce recommender, recommendations for users who are not logged in?
Date Mon, 20 Mar 2017 12:58:21 GMT
Thank you for a quick response.

And thank you for clearing up the unknown/new user issue. In my total lack
of imagination I didn't think of passing an empty user parameter.

I looked into the blacklisting, is it possible to also use this function to
blacklist categories? Say a user already selected an item of a certain
category, and now doesn't want to keep getting recommendations in the same
category, would I have to pass all categories and exclude the the ones
already used?

Initially I wanted to use the UR, but the owner did not want to use HBase
and Elasticsearch at this point. I'm fairly new to this type of technology,
but maybe I will try to learn it and try that out at a later point.


On 20 March 2017 at 13:38, Daniel O' Shaughnessy <
> wrote:

> Hi Kasper,
> The Ecom Recommender (
> ecommercerecommendation/quickstart/) actually does have a basic way to
> handle unknown/new users, they get recommended generally popular items.
> I think the Universal Recommender might suit your needs best though. You
> can find out more about it there :
> And yes, AFAIK the blacklist option will simply filter out any items you
> pass to it.
> Regards,
> Daniel.
> On Mon, 20 Mar 2017 at 10:02 Kasper Bjerke <>
> wrote:
>> Hey guys, I'm currently working on a recommender engine for e-commerce. I
>> chose the official E-com Recommender. I have successfully trained and
>> deployed it. And have been testing some simple requests:
>> { "user" : "someUserId", "num" : 5 } etc. and I get some nice responses.
>> Now I was wondering if there's some documentation on the following:
>> - Provide recommendations for users who are not logged in, like first
>> time users who would sign up during the purchase or just people who forgot
>> to sign in before adding items to cart.
>> - And is there a way to pass the existing items in cart as a parameter to
>> get a better recommendation? // is this the blackList Set[ ]?
>> Thank you in advance,
>> Kasper

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