Timeline for A Question on forward-backward algorithm in CRF++
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Oct 17, 2016 at 14:52 | history | edited | dontloo | CC BY-SA 3.0 |
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| Oct 17, 2016 at 7:28 | comment | added | dontloo | @QianHuang hi I'm not very familiar with the code, I suppose the other function is the marginal of a path, which is different of the marginal of a node. You can take a look at cs.columbia.edu/~mcollins/fb.pdf, the two marginals correspond to the $\mu(j,a)$ and $\mu(j,a,b)$ terms. | |
| Oct 17, 2016 at 6:48 | comment | added | Qian Huang | @dontllo Since the beta is actually beta', and it should subtract the cost in calcExpectation(github.com/taku910/crfpp/blob/master/node.cpp#L35). But one more question I have is why it does not subtract the cost in calcExpectation(github.com/taku910/crfpp/blob/master/path.cpp#L15) as the beta is also beta' in that place. | |
| Oct 17, 2016 at 6:35 | comment | added | dontloo | @QianHuang you're welcome. | |
| Oct 17, 2016 at 6:34 | history | edited | dontloo | CC BY-SA 3.0 |
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| Oct 17, 2016 at 4:38 | vote | accept | Qian Huang | ||
| Oct 17, 2016 at 3:26 | history | answered | dontloo | CC BY-SA 3.0 |