About

Chong Xie (谢冲)

Contact Information


Work Experience

TikTok Live | Expert Algorithm Engineer
Oct 2025 – Present, Singapore

  • Time-series forecasting of live-streaming agency revenue
  • Video understanding and vision-language models (VLM) to surface high-quality streamers

ByteDance — Global Payment | Senior Algorithm Engineer
Dec 2022 – Oct 2025, Singapore

  • Built the anti-money laundering (AML) system and its risk scoring model from scratch
  • Graph computing with the Leiden community-detection algorithm, and GNNs such as GraphSAGE
  • LLM-generated narrative reports, including suspicious transaction reports

Shopee | Senior Algorithm Engineer
Jan 2021 – Sep 2022, Singapore

  • Built the POI database with NER-based address segmentation (CRF, BiLSTM and Transformer models), indexed into Elasticsearch
  • Address / POI search over that index, with query rewriting, powering address entry and saving in the app
  • Wi-Fi based positioning service

Shopee | Data Scientist
Jul 2019 – Jan 2021, Singapore

  • Routing and path-planning engine built on Contraction Hierarchies (CH)
  • Food-delivery service, with assignment and matching by the Hungarian algorithm among other methods

Huawei | Intern
Sep 2018 – Jun 2019, Wuhan, China

DiDi | Intern
Jun 2018 – Sep 2018, Beijing, China

  • Recommended drop-off points for a rider’s destination POI
  • Derived candidate points by clustering historical drop-off traces, DBSCAN among the methods used

Education

Master’s Degree in Geographic Information Science and Cartography
Wuhan University, China
Sep 2016 – Jun 2019
Bachelor’s Degree in Photogrammetry and Remote Sensing
Wuhan University, China
Sep 2012 – Jun 2016

Skills

Deep Learning

  • Large Language Models (LLM) & Vision-Language Models (VLM)
  • Video Understanding
  • Time-Series Forecasting
  • Graph Learning: GNNs (GraphSAGE), community detection (Leiden)
  • Risk Modelling (AML / Fraud)
  • Search Systems
  • Natural Language Processing (NLP)

Engineering

  • System Design
  • Data Structures
  • Spark
  • Databases: PostgreSQL, MySQL, Redis, Hive

Publications

  1. MAP-Vis: A Distributed Spatio-Temporal Big Data Visualization Framework Based on a Multi-Dimensional Aggregation Pyramid Model
  2. Building A Large-Scale Routing Service