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--- |
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license: cc-by-nc-4.0 |
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pretty_name: MerRec |
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size_categories: |
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- 1B<n<10B |
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language: |
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- en |
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tags: |
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- recommendation |
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- sequential recommendation |
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- click-through rate prediction |
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- e-commerce |
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--- |
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# MerRec: A Large-scale Multipurpose Mercari Dataset for Consumer-to-Consumer Recommendation Systems |
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This repository contains the dataset accompanying the paper [MerRec: A Large-scale Multipurpose Mercari Dataset for Consumer-to-Consumer Recommendation Systems](https://arxiv.org/abs/2402.14230). |
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Contributors: Lichi Li, Zainul Abi Din, Zhen Tan, Sam London, Tianlong Chen, Ajay Daptardar |
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## Overview |
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The MerRec dataset is a large-scale, highly diverse, thoroughly anonymized and derived subset of item interaction event sequence data from Mercari, the C2C marketplace e-commerce platform. It is designed for researchers to study recommendation related tasks on a rich C2C environment with many item features. |
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Some basic statistics are: |
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- Unique users: Over 5 million |
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- Unique items: Over 80 million |
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- Unique events: Over 1 billion |
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- Unique sessions: Over 200 million |
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- Item title text tokens: Over 8 billion |
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For a detailed walkthrough and an extensive list of accurate statistics, feature interpretations, preprocessing procedure, please refer to the paper. |
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## File Organization |
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The MerRec dataset is divided into 6 directories, each containing about 300 Parquet shards from a particular month in 2023. |
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## Experiments |
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Code implementation used for the experiment section of the paper can be found [here](https://github.com/mercari/mercari-ml-merrec-pub-us). |
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## BibTeX |
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```bibtex |
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@misc{li2024merrec, |
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title={MerRec: A Large-scale Multipurpose Mercari Dataset for Consumer-to-Consumer Recommendation Systems}, |
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author={Lichi Li and Zainul Abi Din and Zhen Tan and Sam London and Tianlong Chen and Ajay Daptardar}, |
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year={2024}, |
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eprint={2402.14230}, |
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archivePrefix={arXiv}, |
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primaryClass={cs.IR} |
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} |
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``` |
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## License |
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Dataset license: [CC BY-NC 4.0 International](https://creativecommons.org/licenses/by-nc/4.0/legalcode.en) |
