Unverified50% confidenceFactExact time
Google Books operates under a limited open-access model: public domain books can be read in full, while copyrighted books offer only snippet previews and metadata search.
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50%
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Long-term
Relevance
9/27/2026
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UnverifiedGoogle Books项目早期曾大量采用破坏性扫描方法，但通常处理图书馆中有多份副本的普通馆藏而非孤本或稀有版本77% similarUnverifiedGoogle Books allows users to perform keyword searches across the full text of books, quickly locating the pages where concepts, quotations, or historical records appear.77% similarUnverifiedThe goal of Google Books is to digitize library collections from around the world, making them searchable online.74% similarVerified在Authors Guild v. Google案中，谷歌图书的文本索引被裁定为合理使用73% similarUnverifiedOrganizations including OpenAI and Google used licensed or public domain book datasets (such as Books1, Books2, and Google Books public domain corpora) when training their early models.72% similar
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