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I need to build a recommendation system that takes certain parameters as input, computes a score and order suggestions to users based on this score. Well this is what I need to do loosely speaking. I am new to the scene of data science and haven't come across anything that could help me out.

This guy asked a similar question 5 years ago. I basically need something like this: https://stackoverflow.com/questions/6828013/recommendation-systems-for-a-mobile-market-and-algorithm-suggestion

Apologies for the open-ended and vague question. Just need to be pointed out in the right direction.

Edit: I do not intend to place the system on the android device. It will be running back-end

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I don't want to sound harsh but building a recommender system on a android isn't really Data science.

In any recommender system context, the science on data is usually done in ad-hoc manner.

As for the algorithm implementation, validation and scaling, data science can play a part in that. But this is still not related to the fact of serving the data in a mobile application nor a website. That's mainly computer engineering.

Recommender systems algorithms a quite expensive to compute on any mobile nevertheless. It's best fit to be done by a dedicated server which can also play a role in serving the information when needed. I can't get into the details of this thought as it's quite broad to fit in a single answer on the site.

I advice you to read my answer on the time/space complexity challenge in building this types of application. That may help you getting some insights about the architectural design of a recommender engine in the real world.

I hope that this answers your question.

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  • $\begingroup$ yes, I think I did not state that in the right manner. I do not intend to build the system on an android device. The system would run on a server feeding the results to the android application. I just needed the know how to implement it back-end. I shall read your answer. Thank you $\endgroup$
    – badrobot15
    Commented Dec 5, 2016 at 3:43
  • $\begingroup$ Implementation isn't data science. $\endgroup$
    – eliasah
    Commented Dec 5, 2016 at 5:32
  • $\begingroup$ Again poor choice of words. But your link pointed me out in the right direction $\endgroup$
    – badrobot15
    Commented Dec 5, 2016 at 5:47

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