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4.2 代码模块
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‎docs/_images/output_2.analysis_37698d_37_1.png‎

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‎docs/_sources/chapter_1_retrieval/1.cf/4.mf.rst.txt‎

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@@ -138,7 +138,7 @@ FunkSVD 在 MovieLens 数据集上的应用
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0 | 0 | 0 | 0 | 0 | 0 |
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| 0.0048 | 0.002 | 0.002 | 0.0011 | 0.0005 | 0.0004 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0028 | 0.0018 | 0.0016 | 0.0013 | 0.0003 | 0.0004 |
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| 0.0003 | 0.0003 | 0.0003 | 0.0003 | 0 | 0.0001 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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‎docs/_sources/chapter_1_retrieval/2.embedding/1.i2i.rst.txt‎

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@@ -121,7 +121,7 @@ Item2Vec直接采用Word2Vec的Skip-Gram架构，但在序列构建上有所简
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0098 | 0.0033 | 0.0035 | 0.0015 | 0.001 | 0.0007 |
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| 0.0131 | 0.0066 | 0.005 | 0.0028 | 0.0013 | 0.0013 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0089 | 0.0051 | 0.004 | 0.0028 | 0.0009 | 0.001 |
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| 0.0179 | 0.0068 | 0.0081 | 0.0046 | 0.0018 | 0.0014 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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‎docs/_sources/chapter_1_retrieval/2.embedding/2.u2i.rst.txt‎

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@@ -143,7 +143,7 @@ pooling（对应用户-物品交互）。
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0002 | 0 | 0 | 0 | 0 | 0 |
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| 0.0452 | 0.0288 | 0.0223 | 0.017 | 0.0045 | 0.0058 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0397 | 0.0349 | 0.016 | 0.0144 | 0.004 | 0.007 |
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| 0.0389 | 0.0076 | 0.0169 | 0.0058 | 0.0039 | 0.0015 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0207 | 0.0083 | 0.0077 | 0.0037 | 0.0021 | 0.0017 |
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| 0.0414 | 0.0101 | 0.0145 | 0.0047 | 0.0041 | 0.002 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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‎docs/_sources/chapter_1_retrieval/3.sequence/1.user_interests.rst.txt‎

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@@ -153,7 +153,7 @@ softmax损失函数，通过负采样技术来近似计算归一化项。
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0318 | 0.023 | 0.0229 | 0.0201 | 0.0032 | 0.0046 |
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| 0.0373 | 0.0202 | 0.0163 | 0.0109 | 0.0037 | 0.004 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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| hit_rate@10 | hit_rate@5 | ndcg@10 | ndcg@5 | precision@10 | precision@5 |
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+===============+==============+===========+==========+================+===============+
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| 0.0084 | 0.0028 | 0.0029 | 0.0011 | 0.0008 | 0.0006 |
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| 0.0382 | 0.0359 | 0.0169 | 0.0161 | 0.0038 | 0.0072 |
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+---------------+--------------+-----------+----------+----------------+---------------+
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