Recap of Tongcheng Elong 5th Big Data Technology and Application Salon (2019)

Tongcheng Elong, with over 100 million paying users, hosted its 5th Big Data Technology and Application Salon on a rainy Saturday, gathering experts from various business systems and China Mobile Suzhou R&D Center to share practical cases on data platforms, recommendation systems, data mining, and more.

1. Data Middle Platform – From Theory to Product Practice – The speaker explained the concept of a data middle platform, why it is needed, and how Tongcheng Elong transformed theory into product practice, offering insights for building a data middle platform.

2. XianZhi – Intelligent Marketing Platform – Presented a user‑tag‑based dynamic segmentation system that enables real‑time group allocation, configuration, and deployment, improving operational efficiency in the post‑traffic‑bonus era.

3. Real‑Time Recommendation in Transportation Inter‑modal – Discussed performance challenges of large‑scale recommendation systems, optimization techniques, and lessons learned to maintain service quality, data integrity, and recommendation effectiveness.

4. Apache Pulsar – Next‑Generation Cloud‑Native Messaging System – Introduced Pulsar’s architecture, compared it with Apache Kafka, and highlighted its cloud‑native design, ecosystem, and community contributions.

5. Intelligent Chinese Entity Recognition System – Covered the importance of accurate entity extraction in natural language processing and shared best practices for building robust entity‑recognition models.

6. Evolution of Hotel Ranking Models – Described the progression of hotel ranking algorithms driven by massive data growth and the need for personalized, intelligent content presentation.

The event concluded with an award ceremony, a group photo, and participants sharing their impressions, expressing enthusiasm for the next edition of the salon. The presentation slides are available on the official GitHub repository: https://github.com/tongcheng-elong/dc-bigdata-meetup-2019/ .