Nowadays the research of the personalized web search only focuses on how to improve the quality of the search, ignoring the protection of user privacy.
现今，对于个性化搜索的研究大多仅关注于提高个性化搜索质量，而忽略了用户的隐私安全保护。
Nowadays the research of the personalized web search only focuses on how to improve the quality of the search, ignoring the protection of user privacy.
现今，对于个性化搜索的研究大多仅关注于提高个性化搜索质量，而忽略了用户的隐私安全保护。
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