Getting Started with Gorse Recommender System

Oct 3, 2020 | Data Science

Welcome to the world of Gorse, an open-source recommendation system that embodies flexibility and efficiency, designed to deliver personalized recommendations. Whether you’re looking to enhance user experience on an e-commerce platform or curate content for a social media app, Gorse is here to streamline the process. In this guide, we’ll walk you through the setup process step by step and address troubleshooting tips along the way!

What is Gorse?

Gorse is a universal recommendation system written in Go, aimed at automatically generating recommendations by importing users, items, and interaction data. With its feature-rich architecture, it supports a range of techniques, including collaborative filtering and AutoML.

Features of Gorse

  • Multi-source Recommendation: Generate recommendations from various sources like popularity, recency, user-based relevance, item-based connections, and collaborative filtering.
  • AutoML: Automatically discovers the best recommendation model in the background.
  • Distributed Prediction: Scales recommendations across multiple nodes after a single node training.
  • RESTful APIs: Access and manage data through exposed APIs for CRUD operations.
  • Online Evaluation: Analyze performance based on real-time feedback.
  • Dashboard: A GUI for managing data and monitoring system status.

Quick Start Guide

Ready to launch your Gorse system? Follow these steps based on your environment:

1. For Linux or macOS

curl -fsSL https://gorse.io/playground | bash

2. For Docker users

docker run -p 8088:8088 zhenghaoz/gorse-in-one --playground

The playground mode will automatically download data from GitRec and import it into Gorse. You can access the dashboard at http://localhost:8088.

Simulating User Feedback

After setting up, you can test the recommendation engine. Suppose Bob is a frontend developer who has starred several repositories on GitHub. You can input his feedback as follows:

{
    "Feedback": [
        {"FeedbackType": "star", "UserId": "bob", "ItemId": "vuejs:vue", "Timestamp": "2022-02-24"},
        {"FeedbackType": "star", "UserId": "bob", "ItemId": "d3:d3", "Timestamp": "2022-02-25"},
        {"FeedbackType": "star", "UserId": "bob", "ItemId": "dogfalo:materialize", "Timestamp": "2022-02-26"},
        {"FeedbackType": "star", "UserId": "bob", "ItemId": "mozilla:pdf.js", "Timestamp": "2022-02-27"},
        {"FeedbackType": "star", "UserId": "bob", "ItemId": "moment:moment", "Timestamp": "2022-02-28"}
    ]
}

Post the feedback using:

curl -X POST http://127.0.0.1:8088/api/feedback -H "Content-Type: application/json" -d $JSON

Finally, retrieve recommendations:

curl http://127.0.0.1:8088/api/recommend/bob?n=10

This command fetches a list of recommended items based on Bob’s interactions.

Understanding the Architecture

Gorse operates on a single-node training model with distributed predictions. Think of the architecture like a well-organized library:

  • Master Node: The librarian overseeing general knowledge, handling model training and managing resources.
  • Worker Nodes: Assistants providing services tailored to individual users.
  • Server Nodes: Access points for patrons (users) to explore the library’s offerings through user-friendly APIs.

This collaborative setup ensures efficient management and retrieval of recommendations.

Troubleshooting

If you run into issues, here are some troubleshooting ideas:

  • Ensure all dependencies like MySQL, MongoDB, or Postgres are correctly installed and running.
  • Confirm the Gorse server is accessible by checking http://localhost:8088.
  • Inspect Docker logs for potential issues if using Docker.

For further assistance, keep up with community insights and updates by connecting with us at fxis.ai.

Conclusion

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

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