# Classification 3 Challenge — Data

来源：https://www.kaggle.com/competitions/bdsc-classification-3-challenge/data

采集时间：2026-10-19T13:51:10Z

This dataset contains user transitions between pages. The goal of this challenge is to recognize one user amongst all others. The dataset consists of user sessions, each session is a sequence of transitions between pages. A sequence can be one to ten pages long.

- **train.csv** - contains webpages, timestamps, and targets for each train session.
- **test.csv** - contains webpages, timestamps for each test session.
- **id_map.parquet** - webpages id to url map