Mahout:DataModel doesn't have preference values
Mahout in Action 在第3.3節 Coping without preference values 提到了沒有偏好值的數據場景,能夠得到1~5分偏好評分的場景太難了,這需要有一個略微複雜點的價值判斷過程.相比之下,"頂"和"踩"就來的簡單的多.看下面的圖,對於布爾型數據模型,已經簡化成爲:喜歡,不喜歡,不知道 作者給出了一個"樣例代碼",這段樣例代碼運行到最後是會拋出
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相關文章
- 1. android preference page
- 2. cannot add a child that doesnt have a yogaNode to a parent without a measure function。 trying to add
- 3. Column count doesnt match value count at row 1
- 4. JasperException: illegal to have multiple occurrences of 'contentType with different values
- 5. ValueError: Length mismatch: Expected axis has 2 elements, new values have 11 elements
- 6. Page directive: illegal to have multiple occurrences of contentType with different values (old: text
- 7. jsp include 報錯：illegal to have multiple occurrences of contentType with different values (old: text/
- 8. Python報錯：ValueError: Length mismatch: Expected axis has 12 elements, new values have 23 elements
- 9. 【解決】ValueError: Length mismatch: Expected axis has 0 elements, new values have 2 elements
- 10. AlwaysOn--Backup Preference