Tmall

Overview

Dataset name: Tmall
Latest version: v1
Available versions: v1
Source: https://tianchi.aliyun.com/dataset/42

This dataset is from IJCAI 2015 Contest: https://tianchi.aliyun.com/competition/entrance/231674/information The data set contains anonymized users' shopping logs in the past 6 months before and on the "Double 11" day,and the label information indicating whether they are repeated buyers. Due to privacy issue, data is sampled in a biased way, so the statistical result on this data set would deviate from the actual of Tmall.com.

Citation

@misc{
    title={IJCAI-15 Repeat Buyers Prediction Dataset}
    url={https://tianchi.aliyun.com/dataset/dataDetail?dataId=42},
    author={Tianchi},
    year={2018}
    }

Version: v1

Data Sources

Name	Source type	Archive	URL	Checksum
main_archive	ManualSource	zip		md5:b8143773b800c7420b201d04bc7a9c15

Resources

train

Type: interactions
Format: sequence_tabular_inline
Required: yes
Source: main_archive
Filename: train_format2.csv

Schema

cols:
- user_id
- age_range
- gender
- merchant_id
- label
- activity_log
user_col: user_id
sequence_col: activity_log
col_sep: ','
sequence_sep: '#'
header: 0

test

Type: interactions
Format: sequence_tabular_inline
Source: main_archive
Filename: train_format2.csv

Schema

cols:
- user_id
- age_range
- gender
- merchant_id
- label
- activity_log
user_col: user_id
sequence_col: activity_log
col_sep: ','
sequence_sep: '#'
header: 0

Dataset Characteristics

Computed at: 2025-12-16

Metric	Value
n_users	212062
n_items	9790396
n_interactions	27384139
space_size	1440.8924167168068
space_size_log	3.1586315557130478
shape	0.02166020659429915
shape_log	-1.6643374054052402
density	1.318973223933264e-05
density_log	-4.879764020841857
gini_item	0.5585949565188277
gini_user	0.5412012856445343
ratings_per_user	129.13270175703332
ratings_per_item	2.797040998137358

License & Usage

Please refer to the official dataset page for licensing and usage restrictions. https://tianchi.aliyun.com/dataset/42