Rule-based personalization is simple and direct, but it is very difficult to update the rule set in time.

基于规则的个性化服务技术具有简单、直接等优点，但及时更新规则库比较困难。

youdao

Rule-based personalization is simple and direct, but it is very difficult to update the rule set in time.

基于规则的个性化服务技术具有简单、直接等优点，但及时更新规则库比较困难。

youdao