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TOROS Buffalo: A fast and scalable production-ready open source project for recommender systems
Python C++ Cuda CMake
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Buffalo is a fast and scalable production-ready open source project for recommender systems. Buffalo effectively utilizes system resources, enabling high performance even on low-spec machines. The implementation is optimized for CPU and SSD. Even so, it shows good performance with GPU accelerator, too. Buffalo, developed by Kakao, has been reliably used in production for various Kakao services.

For more information see the documentation


  • Python 3.6+
  • cmake 2.8.8+
  • gcc/g++ (with std=c++14)


This software is licensed under the Apache 2 license, quoted below.

Copyright 2019 Kakao Corp.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this project except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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