Major Challenges Faced While Developing Recommender Systems

What are the Major Challenges Faced While Developing Recommender Systems?

Posted on June 20, 2019

The Internet might be filled at the brim with a lot of information about training as well as evaluating the recommenders, but too much info could overwhelm you. Are you looking to get a clear understanding of the ways to beat different challenges revolving around a full-scale system? If yes, then start reading:

  1. Dynamic Prediction
    When you are dealing with a large user-base dimensionality, it could be a big deal to pre-compute every recommendation.
  2. Optimizing Time of Responding
    When you successfully produce predictions dynamically, the total time you require retrieving them is extremely crucial.
  3. Updating Models Frequently
    When the system requires inculcating new data, it might be important to update the models on a frequent note.
  4. Predicting Unseen Information
    It could be a bit challenging to deal with the users and keep a tab on the swiftly changing product features, simultaneously.
  5. Problem with Cold Start
    You may face a bit of challenge while handing the new users or products that lack a proper backup or history. However, this issue is highly solvable. You could use collaborating filtering or content-boosted filtering solution to fix this issue. Using product depiction or distributes and user-demographics for recommending different products/services to your intended users could be beneficial as well.
  6. Plummeting Data
    User Item rating matrix could be extremely sparse, as stores own numerous products and each of them won’t be rated by a lot of users. It’s a fact that only a handful of people actually rate different products. Owing to such sparsity, it becomes inefficient to train computationally. You may eradicate users or products from where they are not learning much. This way, you can minimize the sparsity of the rating matrix of user items.
  7. Grey-Sheep Issues
    Grey-sheep hints at those who have very inconsistent opinions and unpredictable behaviors. But, this issue is also solvable, and hence, you need not stress out too much! You should know that pure collaborative filtering may not succeed in fixing such issue. You may opt for content-boosted filtering such as in the cold start issue to sort out this problem.
  8. Products that are Similar
    Have you ever thought that how will you handle those products, which are similar but have some certain differences? As you are not going to use product depiction for collaborative filtering, you may miss out on the information regarding their similarities. As most of the online stores use different codes for such products, it could be difficult to find their similarities. But, fret not! This issue is highly solvable as well. The latent collaborative filtering is a certain algorithm, which can figure out the intricate factors from different data. This algorithm works wonders for issues related to synonymy. This could be a solution if you have a number of products with synonymy.
  9. Shilling Attacks Could be Challenging
    It is indeed a tough nut to crack to deal with those who are striving to game the product recommendation systems. One of the most effective and easiest ways to solve this problem is to take adequate precautions and keep a constant tab on consumer behaviors.

Choose Flatworld Solutions for Efficient Recommender System Development Services

Flatworld Solutions has been a pioneer in providing quality recommender system development services and a series of other data science solutions. We have a highly experienced and skilled team of data scientists on board who can cater to any of the client’s needs with ease. We leverage the latest data science tools and technologies and deliver best-in-class solutions to clients around the globe.

If you are looking for a reliable, cost-effective, and efficient data science solutions provider, then look no further. Get in touch with us today!

Interested to know more?

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  2. 4 Problems That Can be Solved by Deep Learning in 2020
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