Key Lessons from Winning the 2025 China University Big Data Competition

The author shares a detailed account of their experience in the 2025 China University Big Data Competition, describing the team’s top national ranking, the shift from absolute stock price prediction to robust ranking learning, extensive feature engineering, and reflections on balancing technical ambition with real‑world constraints.

Big DataStock Predictiondata competition

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Key Lessons from Winning the 2025 China University Big Data Competition

Java Tech Enthusiast

Jul 7, 2024 · Industry Insights

What the Beijing Court’s Ruling on Navigation Data Reveals About Unfair Competition

A Beijing court ruled that a financial software firm’s illegal scraping and commercial use of a navigation‑derived congestion‑delay index constituted unfair competition, ordering an injunction and a 12.5 million‑yuan damages award, highlighting the legal protection of high‑value traffic data.

data competitionindustry insightlegal case

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What the Beijing Court’s Ruling on Navigation Data Reveals About Unfair Competition

Amap Tech

Oct 14, 2021 · Artificial Intelligence

CCF Big Data & Computing Intelligence Contest – POI Name Generation Challenge

The 9th CCF Big Data & Computing Intelligence Contest partners with Gaode Map to launch a POI Name Generation challenge, requiring participants to fuse image, signboard detection, and OCR data to automatically produce accurate, fluent place names, with a ¥50,000 prize pool, weekly vouchers, and recruitment opportunities for global teams.

AINLPPOI

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CCF Big Data & Computing Intelligence Contest – POI Name Generation Challenge

Baobao Algorithm Notes

Feb 29, 2020 · Artificial Intelligence

Detecting COVID‑19 Public Sentiment with Chinese BERT: Competition Walkthrough

This article outlines the COVID‑19 public sentiment detection competition, detailing the three‑class classification task, data cleaning and exploratory analysis, a Chinese BERT baseline that reaches a 0.726 macro‑F1 score, submission pitfalls, and recommended further reading.

COVID-19Chinese BERTEDA

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Detecting COVID‑19 Public Sentiment with Chinese BERT: Competition Walkthrough

Baobao Algorithm Notes

Dec 20, 2017 · Artificial Intelligence

Predicting Enterprise Exit Risk with 88 Features: A DataScience Club Solution

This article details a data‑science competition solution that predicts enterprise exit risk using 88 engineered features, LightGBM and XGBoost models with 5‑fold bagging, achieving a top‑25 ranking on the private leaderboard.

Enterprise riskLightGBMXGBoost

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Predicting Enterprise Exit Risk with 88 Features: A DataScience Club Solution