xvector: Objf and Deriv #6
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added 3 commits
February 14, 2016 17:19
…. Improving unit tests. Adding CPU version of objf calculation
| if (i + 1 == j && i % 2 == 0) { | ||
| obfj_terms[scores_index] = log(1.0 + exp(-L)); | ||
| obfj_derivs[scores_index] = 1.0 / (1.0 + exp(L)); | ||
| } else if (i != j) { | ||
| } else if (i < j) { | ||
| obfj_terms[scores_index] = K * log(1.0 + exp(L)); | ||
| obfj_derivs[scores_index] = -K / (1.0 + exp(-L)); | ||
| } |
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if I were you I'd do at this point
else {
objf_terms[scores_index] = 0.0;
objf_derivs[scores_index] = 0.0;
}
this will save you from having to initialize those to zero (i.e. you can size them with kUndefined)
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Also, please don't assume that the stride of objf_deriv is the same as that of objf. It's against the interface.
danpovey
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Jan 5, 2018
* OCR: Add IAM corpus with unk decoding support (#3) * Add a new English OCR database 'UW3' * Some minor fixes re IAM corpus * Fix an issue in IAM chain recipes + add a new recipe (#6) * Some fixes based on the pull request review * Various fixes + cleaning on IAM * Fix LM estimation and add extended dictionary + other minor fixes * Add README for IAM * Add output filter for scoring * Fix a bug RE switch to pyhton3 * Add updated results + minor fixes * Remove unk decoding -- gives almost no gain * Add UW3 OCR database * Fix cmd.sh in IAM + fix usages of train/decode_cmd in chain recipes * Various minor fixes on UW3 * Rename iam/s5 to iam/v1 * Add README file for UW3 * Various cosmetic fixes on UW3 scripts * Minor fixes in IAM
danpovey
pushed a commit
that referenced
this pull request
Jan 5, 2018
* OCR: Add IAM corpus with unk decoding support (#3) * Add a new English OCR database 'UW3' * Some minor fixes re IAM corpus * Fix an issue in IAM chain recipes + add a new recipe (#6) * Some fixes based on the pull request review * Various fixes + cleaning on IAM * Fix LM estimation and add extended dictionary + other minor fixes * Add README for IAM * Add output filter for scoring * Fix a bug RE switch to pyhton3 * Add updated results + minor fixes * Remove unk decoding -- gives almost no gain * Add UW3 OCR database * Fix cmd.sh in IAM + fix usages of train/decode_cmd in chain recipes * Various minor fixes on UW3 * Rename iam/s5 to iam/v1 * Add README file for UW3 * Various cosmetic fixes on UW3 scripts * Minor fixes in IAM
danpovey
pushed a commit
that referenced
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Nov 7, 2019
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Finished cuda-enabled version of objf and deriv calculation.
Improving unit tests.
Added CPU version of objf calculation.