U-NEED: A Fine-grained Dataset for User Needs-Centric E-commerce Conversational Recommendation

SIGIR

Liu, Yuanxing and Zhang, Weinan and Dong, Baohua and Fan, Yan and Wang, Hang and Feng, Fan and Chen, Yifan and Zhuang, Ziyu and Cui, Hengbin and Li, Yongbin and Che, Wanxiang