Research Article
Classification and Retrieval of Multimedia Book Cloud Resources Based upon Hash Algorithm
Table 1
Data selection criteria for different database samples.
| | Positive sample | Negative sample | Negative sample draw ratio |
| Philosophy and religion | 201 | 1243 | 17% | Political law | 410 | 998 | 62% | Economics | 356 | 1174 | 34% | Cultural education | 524 | 816 | 46% | Natural science | 187 | 1359 | 12% |
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