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TaiwanMedia and entertainment2022 – ongoing

UDN Group

User preference prediction model for online ad targeting

UDN Group raised the clickthrough rate of some ad categories up to four times with a user preference model

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Problem

The Taiwanese newspaper group sells online advertising on udn.com and wanted more accurate ad targeting.

Approach

In 2022 UDN Group started building a user preference prediction model with the marketing partner Merkle, using Vertex AI. The algorithms extract keywords from UDN's online content for tagging, match content tags to ad categories and generate target audiences. The team ran A/B tests to pick the best algorithms and finished development in eight months.

Results

up to 4xincrease in unique clickthrough rate for certain ad categories with the new modelVendor case study[1]

Takeaway

The gain was reported for certain ad categories, not for all advertising. The company did not say which categories or how the baseline was set.

Categories

Business function
Marketing and sales
Evidence
Vendor case study

Sources

Source summaries

[1]Google Cloud25 Jul 2025

Google Cloud's customer story describes how UDN Group and Merkle built an ML model on Vertex AI to predict user preferences for ad targeting. It reports an increase in unique clickthrough rate of up to four times for certain ad categories, and that 40% of ad orders are supported by data-driven advertising services. The page carries no date; the Internet Archive first saved it on July 25, 2025.

Full details are in the original sources.

Added 4 Nov 2026 · Updated 4 Nov 2026
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