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Recommendation System Machine Learning

Boost Your Sales with Machine Learning Product Recommendations

Improve user engagement and increase your revenue with an intelligent product recommendation system that suggests relevant items based on user preference.

Luigi's Box Recommender

What are machine learning product recommendations

Machine learning product recommendations are systems that provide suggestions for products or content that particular customers might be interested in buying or engaging with based on previous data gathered by the system.

Such a system typically uses machine learning techniques and multiple datasets about items and customers to create an advanced network of complex connections between those products and customers.


What can machine learning product recommendations do

A recommendation system can recommend several different things, such as products, movies, books, news, articles, jobs, advertisements, and more. For instance, Netflix uses a recommendation system to recommend movies and series to its individual customers.

YouTube recommends different videos to users based on customer profile and watch history. Likewise, e-commerce websites recommend different products to different users based on their preferences. This results in a wide range of personalized recommendations based on user behavior that can increase user engagement.

Recommendation process

How recommender systems work

The hybrid approaches of machine learning yield results that cater to the needs of individual customers. Take a look at how the systems work. 

Basic working 
Basic working 

Recommender systems deal with a large volume of information present by filtering the most important information based on the data provided by individual customers, such as user ratings, similarity scores, and several other factors that take care of user preference and interest. Recommender systems use various methods in neural networks to determine the match between user and item and impute the similarities between users and items for relevant recommendations.

Role of machine learning
Role of machine learning

Recommender systems use specialized deep-learning algorithms and machine-learning solutions. Driven by the automated configuration, coordination, and management of machine learning predictive analytics algorithms, recommender systems can intelligently choose which filters to apply to a specific customer’s particular situation based on previous user interactions. This helps marketers maximize conversions and average order value for relevant products and target users or user groups specifically.

Recommender system challenges
Recommender system challenges

Several approaches are in use today. However, comparing their effectiveness is difficult because evaluation results are rarely reproducible. Therefore, the lack of a common understanding of reproducibility in various types of recommender systems is challenging. Since the behavior of users tends always to be different and the system needs to create a personalized experience, it employs different tactics to achieve this, and they might be hard to follow.

Three types of recommendation systems

Here are some of the most common types of recommender systems:

1. Content-based recommender systems

Content-based recommender systems use advanced content-based filtering based on the similarity of item attributes and use information or features related to the products themselves instead of using users’ preferences. For example, a content-based system might use the year of release, star cast, or genre to suggest relevant content recommendations to users. These systems work in any environment and can be used to recommend popular items on e-shops, news articles on news websites, and other business areas and even niches.

2. Collaborative filtering recommender systems

A quite popular recommendation method is collaborative filtering. Such recommender systems use filters that consider the choices and explicit ratings of users. For instance, recommender systems would suggest movies to a viewer based on the previous data of ratings given by different viewers of different movies. The collaborative filtering algorithm commonly used in recommender systems is matrix factorization. Matrix factorization algorithms work by decomposing the user-item vector interaction matrix into the product of two lower-dimensionality rectangular matrices.

3. Hybrid recommender systems

Most modern mobile recommender systems combine both these approaches and are called hybrid recommendation systems, increasing their effectiveness because they don’t rely on just a single method. As a result, they tend to outperform the content-based and collaborative filtering methods in providing relevant content and product options. Hybrid recommender systems generate tags based on natural language processing (NLP) for every item and use vector equations to calculate the similarity between items.

Popular use cases

Who uses recommender systems 

Here are a few industries and businesses that extensively use recommender systems:

Streaming media

Multimedia streaming services use session-based recommendations aimed at predicting the next item based on a sequence of previous items consumed in the session. For instance, Netflix uses session-based recommender systems to suggest movies and web series to individual users.

It is the perfect example of a hybrid recommender system as it takes into account both the interests of the user (collaborative) and the descriptions or features of the movie (content-based). According to McKinsey research, 75% of the content consumed on Netflix is based on machine learning-based movie recommendations.

Dating websites

Many dating sites like Tinder use recommender systems to match people. The key factors that contribute are the people that you swiped right on (the people you liked), your reactivation stats, your location, your profiles, and more. Tinder, in fact, is one of the biggest recommender systems in use, with an estimated user base of 50 million people worldwide in 2020.

Dating websites and applications often update and innovate the recommendation strategies in case the algorithm proves to be stale and doesn’t result in enough successful matches, or provides the wrong types of recommendations.

Social media

Facebook is another example that uses product recommendation engines to recommend personalized content to every user profile. It uses multiple recommendation algorithms for different sections. For instance, the news feed uses one, whereas the “people you may know” section uses another.

Likewise, the news section, marketplace, Facebook videos, etc, are different sections of Facebook, each of which will recommend different things based on your preferences. Social media implements various recommendation strategies and regular updates to ensure customer loyalty will stay high.


Modern e-commerce often relies heavily on the product recommendation process as it’s been proven to significantly improve e-shop conversions, decrease cart abandonment, and increase the average cart value. Many online stores like Amazon, eBay, and Walmart use recommender systems to suggest products to individual customers based on customer profiles.

They know what they may like, and they recognize their purchase history. In fact, 35% of what consumers purchase on Amazon comes from product recommendations based on machine learning algorithms.

Main benefits

Benefits of recommender systems for e-commerce businesses

Not sure whether e-commerce businesses should implement recommender systems? Here are a few reasons to help you decide:

Better user experience

Better user experience

With effective product recommender systems, users will get personalized and accurate recommendations tailored to their needs. As a result, they will have a good experience and are likely to return to your store. Not only is this beneficial for sales and customer satisfaction, but this can also have a positive impact on your online store's search engine rankings.

Improved sales and conversion rates

Improved sales and conversion rates

Product recommendation engines help online retailers boost sales and increase conversion rates. They allow retailers to upsell or cross-sell their products to increase revenue. With cross-selling products, an e-commerce store can increase its sales by 20% and profits by 30%.

Decreased cart abandonment

Decreased cart abandonment

According to Baymard Institute, the average cart abandonment rate across all industries is 69.99%. One driving factor for cart abandonment is improper product recommendations or no recommendations at all. Suggesting personalized products or telling your customers what add-ons they might need with a product can help you tackle this problem.

Increased average order value

Increased average order value

A product recommendation system helps increase the average order value of e-commerce stores by providing a personalized shopping experience to its users. According to statistics, the average order value for a store that shows no product recommendations is $44.41. However, when you show product recommendations and when prospects engage with just a single recommendation, this number multiplies by 369%.

Better customer engagement

Better customer engagement

Customer relationships are built on trust. Your customers want to feel like your business understands them, and recommending the right products based on customer profiles will help cultivate brand loyalty, inspire more website visits, increase click-through rates, and encourage more interactions with your e-commerce brand.

Book a demo call to see Recommender in action

Discover how our recommendation widgets allow you to boost your e-commerce sales with highly personalized and accurate machine learning-based product recommendations.

Luigi’s Box improves customer experience

The most significant contribution of Luigi’s Box to EXIsport is an improvement in customer experience. The quicker they find what they search for, and the more relevant the search query is, the higher...

Juraj Giacko
Head of E-Commerce, EXIsport

Taking extra effort to improve business results

Luigi’s Box massively streamlines shopping for our customers. Moreover, they developed several features for us that help manage products in our e-shop.

Piotr Maciążka
Implementation Team Manager, Answear

Building in-house search is like building another Google

It doesn’t make sense to develop our own search engine. Luigi’s Box's added value is that it understands our specific needs and can adapt to them. This level of understanding and responsiveness is...

Martin Derňar
Chief Digital & eCommerce, Nay

Increased search conversions by 33%

Luigi's Box Autocomplete increased our conversions by 33%, even when its use dropped by 30%.

David Linhart
Head of E-Commerce, Mountfield

Shopping cart value increased dramatically

Recommender is a useful and inspirational resource for our customers to discover Powerlogy's products. How do we know that? Our average shopping cart value has been rising dramatically.

Michal Dodok
Head of Marketing, Powerlogy

Luigi’s Box was a real eye-opener for us

Luigi’s Box was a real eye-opener for us. E-shoppers often forget to care about customer experience and invest too many resources into advertising. Luigi's Box showed us what we could gain if we...

Soňa Fialková
CEO, SpokojenýPes

We love Luigi’s Box & their tools

Luigi's Box does a great shop and our company loves their tools.

Michal Slovák
Product and SEO Manager, Pro-Tech shop

More than €100,000/year thanks to Luigi’s Box

Given our size, Luigi's Box brings us over €100,000 a year without much hard work for a price that was immediately returned multiple times.

Jakub Žilinčan
Chief Marketing Officer, Electronic-star

Team of professional specialists

Luigi’s Box is a guarantee of a professional approach. As the search specialists, they lead us to our goals much faster.

Tomáš Bzirský
Performance Marketing Manager, Košík
What makes it beneficial for you

Why you should use recommendations

Recommender shows AI-driven product suggestions personalized to every visitor based on their preferences and previous online behavior.

More conversions and repeat visits

Increase average cart conversion by at least 13%. When customers' needs are fulfilled quickly, they are more likely to return to your e-store. 

Better average order value

Increase average order value by at least 35%. Recommender offers product tips based on what's already in the customer's shopping cart.

Improved customer experience

Suggest what else individual users might need based on their preferences and similarities with previously seen products.

Trusted by more than 3,000 online businesses

What else Luigi’s Box offers besides recommendations


Get insights into what your customers are searching for, what they struggle to find, and how you can improve their overall search experience.

Discover Analytics

Search with Autocomplete

Bring an intelligent search box on your site that manages common grammatical mistakes, typos, slang terms, and various synonyms to avoid no-results searches.

Discover Search

Product Listing

Organize your products and automatically rank them based on popularity, personal taste, intent during a visitor’s session, and business logic.

Discover Product Listing

Luigi's Box is compatible with any website

There are three ways how to deliver your product data to Luigi’s Box.

Sync via content API

Data will be pushed to our servers. Therefore, you only send updates to products when they change. If you run on a supported platform, we can set up data connectors.

There’s no development cost on your side. We can pull all the data that we need. Luigi’s Box is compatible with any e‑commerce platform.

Pro Tip: If you run on a supported platform, we can set up data connectors. There’s no development cost on your side. We can pull all the data that we need.

Platform connectors

If you run on a supported platform, we can set up data connectors, so there’s no development cost on your side.

We can pull all the needed data, and you can move to step four. In case you do not run on one of these platforms, you can choose whether to synchronize via API or Feeds.

Pro Tip: If you run on a supported platform, we can set up data connectors. There’s no development cost on your side. We can pull all the data that we need.

Synchronize via feeds

Data will be downloaded from your servers. If there is a change to the product, we will not know about it until the feed is processed next time. The data update is typically performed six times a day.

To synchronize the data, you can use API or feeds. Needs up-to-date data about products, categories, brands, and (optionally) articles.

Pro Tip: If you run on a supported platform, we can set up data connectors. There’s no development cost on your side. We can pull all the data that we need.

Get Started with Luigi’s Box today

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Frequently asked questions

How do product recommendation systems based on machine learning work?

Product recommendation systems use advanced machine learning algorithms and deep learning methods to segment customers based on their user data and behavioral patterns (such as purchase and browsing history, likes, or reviews) and target them with personalized product and content suggestions.

Some commonly used recommendation frameworks are content-based, collaborative, and hybrid filtering.

What are the benefits of recommender systems?

A product recommendation system helps you improve user experience and customer engagement on your site by offering personalized recommendations tailored to your customers’ needs. When they have a good experience, they are likely to return to your store.

Such a system also helps increase sales, average order value, and conversion rates by allowing retailers to upsell or cross-sell their products.

What makes a good recommendation system?

Some of the guidelines for recommender systems are:

  • It shouldn’t recommend products that are too similar to what users have already seen before.
  • It should diversify its recommendations and put more emphasis on personalization.
  • It should also strive for temporal diversity, which means it shouldn’t offer the same recommendations in every current user session.

Where do recommendation systems get data from?

Recommender systems often receive data from explicit ratings after buying a product, watching a movie, or listening to a song, from implicit search engine queries and purchase histories, or from other categorical variables about the customers (such as the user profile) or products themselves.

Some recommender systems build a utility matrix, which consists of the rating (or preference) for each user-item pair.

Who is the best product recommendation system provider?

The answer depends on several factors such as your needs, budget, and goals. While you may find several recommender systems on the market, Luigi’s Box recommendation widget uses advanced AI algorithms to take personalization to the next level, helping you achieve +35% average sales increase and +13% average cart conversion increase.

You can place our recommendation widget anywhere on the website. It’ll always feel like its natural part regardless of the e‑commerce platform.