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- Timestamp:
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Dec 22, 2010, 9:33:58 AM (14 years ago)
- Author:
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Víctor de Buen Remiro
- Comment:
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--
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v19
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v20
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| 82 | 82 | |
| 83 | 83 | ''Gradient'': [[BR]] |
| 84 | | [[LatexEquation( \frac{\partial L\left(\beta\right)}{\partial\beta_{j}}=\underset{i}{\sum}w_{i}\left(\frac{e^{-x_{i}^{t}\beta}}{1+e^{-x_{i}^{t}\beta}}-\left(1-y_{i}\right)\right)x_{ij} |
| | 84 | [[LatexEquation( \frac{\partial L\left(\beta\right)}{\partial\beta_{j}}=\underset{i}{\sum}w_{i}\left(\frac{e^{-x_{i}^{t}\beta}}{1+e^{-x_{i}^{t}\beta}}-\left(1-y_{i}\right)\right)x_{ij}=\underset{i}{\sum}w_{i}\left(\left(1-\pi_{i}\right)-\left(1-y_{i}\right)\right)x_{ij}=\underset{i}{\sum}w_{i}\left(y_{i}-\pi_{i}\right)x_{ij} )]] |
| 85 | 85 | |
| 86 | 86 | ''Hessian'': [[BR]] |
