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为什么SVD拿到的结果和书中不一样 #83

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SmirkCao opened this issue Jun 3, 2019 · 1 comment
Closed
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为什么SVD拿到的结果和书中不一样 #83

SmirkCao opened this issue Jun 3, 2019 · 1 comment

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@SmirkCao
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SmirkCao commented Jun 3, 2019

相关章节

CH17 潜在语义分析

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  • 代码
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  • 示例

问题描述

就$P_{330}$中的结果，使用np.svd拿到的结果和书中的结果不太一样，有符号差异，为什么？
@SmirkCao
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书中除了做了SVD的操作，还保证了V阵的最大值为正，来得到确定性结果。

具体参考测试案例test_lsa_puffinwarellc_tutorial来体会。

SmirkCao added a commit that referenced this issue Jun 12, 2019
@SmirkCao
close issue #83
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@SmirkCao SmirkCao mentioned this issue Jun 12, 2019
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