Looking Similar is a Recommend model which finds related items based on images in your index. You can set it up in a few minutes as it doesn’t need any events. Image-based recommendations help inspire your users and let them explore your catalog. In particular, the Recommend Looking Similar model helps in these cases:
  • When your users know what they want Users might want something specific that isn’t available, like an out-of-stock product. You can recommend similar-looking alternatives to help users continue their shopping.
  • When users don’t know what they want Use recommendations from the Looking Similar model to inspire users to explore your catalog. Navigating through similar-looking products can be a great way to discover new products which they might never search for.
  • When you have other ideas The Looking Similar model is a catalog analysis tool that can generate hundreds of recommendations for each item. If you combine the recommendations with the Recommend Filtering API, you can refine them based on attribute, such as category == "Clothing" or price >= 10, and enable advanced merchandising.

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Limitations

The model has the following limitations:
  • Maximum 3 attributes with images
  • Maximum 500,000 images per training (the model will fetch up to this limit, sorted by relevance based on your custom ranking)
  • It can’t use Recommend rules.

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Set up the Looking Similar model

Start by selecting an application with AI Recommendations enabled.
1

Select your Algolia application

Go to the Algolia dashboard and select your Algolia application.
2

Select Recommend

On the left sidebar, select Algolia Recommend Recommend.
3

Select the model

In the Looking similar section, click Start using.Start using the Looking Similar model
4

Select source

Select an index with image URLs you want to use as the data source.Select index to use as data source for training the model
5

Select image attributes

Select up to three image attributes. The recommended items will be sorted by the best score.Select the image attributes to use for training the Looking Similar model
The model supports images from single attributes with single values, such as productImage, from attributes with several values, such as rentalHomeImages, or from several attributes, such as productImage, userProvidedProductImage.
6

Start training

To begin model training, click Start training.Start training Looking Similar model

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Check the training results

After a few minutes, you can find training metrics in the Info tab of the model overview, the number and percentage of items with recommendations. Metrics for Looking Simialar trained model
The coverage (percentage of items recommended at least once) should be high as the model generates up to 30 recommendations per item with images.
Check the results in the Preview tab by typing a few characters to select a source item. Preview for trained Looking Similar model

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Integration

The InstantSearch.js and React InstantSearch UI libraries have widgets for showing recommendations from the Looking Similar model:
  • Looking Similar widget (InstantSearch.js)
  • Looking Similar widget (React InstantSearch)
Alternatively, you can get these recommendations with the JavaScript API client.