Unverified50% confidenceFactExact time
2023年德国莱比锡大学的一项研究（发表于ECIR 2024）分析了Google、Bing和DuckDuckGo的产品评测类搜索结果，发现三大搜索引擎都存在被低质量附属营销内容污染的问题
1
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50%
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Long-term
Relevance
8/21/2026
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