Upload README.md

README.md

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+# AmazonCDs_m1
+
++ **Data format:**  
+user_id item1 item2 ...
+
++ **Download:** https://huggingface.co/datasets/reczoo/AmazonCDs_m1/tree/main
++ **Repository:** https://github.com/reczoo/Datasets
+
++ **Used by papers:** 
+    - Jianing Sun, Wei Guo, Dengcheng Zhang, Yingxue Zhang, Florence Regol, Yaochen Hu, Huifeng Guo, Ruiming Tang, Han Yuan, Xiuqiang He, Mark Coates. [A Framework for Recommending Accurate and Diverse Items Using Bayesian Graph Convolutional Neural Networks](https://hyclex.github.io/papers/paper_sun2019BGCN.pdf). In KDD 2020.
+    - Kelong Mao, Jieming Zhu, Jinpeng Wang, Quanyu Dai, Zhenhua Dong, Xi Xiao, Xiuqiang He. [SimpleX: A Simple and Strong Baseline for Collaborative Filtering](https://arxiv.org/abs/2109.12613). In CIKM 2021.
+    - Kelong Mao, Jieming Zhu, Xi Xiao, Biao Lu, Zhaowei Wang, Xiuqiang He. [UltraGCN: Ultra Simplification of Graph Convolutional Networks for Recommendation](https://arxiv.org/abs/2110.15114). In CIKM 2021.
+
++ **Check the md5sum for data integrity:**
+    ```bash
+    $ md5sum *.txt
+    d29acb66d0fb74bc3bc0791cbbce5cf2  test.txt
+    2df6a35cac4373cf3eef95f75568da0a  train.txt
+    ```