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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/translate/core/browser/translate_ranker_impl.h" | 5 #include "components/translate/core/browser/translate_ranker_impl.h" |
6 | 6 |
7 #include <cmath> | 7 #include <cmath> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/bind_helpers.h" | 10 #include "base/bind_helpers.h" |
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252 model_->proto().translate().logistic_regression_model(); | 252 model_->proto().translate().logistic_regression_model(); |
253 | 253 |
254 double dot_product = | 254 double dot_product = |
255 (features.accepted_count * logit.accept_count_weight()) + | 255 (features.accepted_count * logit.accept_count_weight()) + |
256 (features.denied_count * logit.decline_count_weight()) + | 256 (features.denied_count * logit.decline_count_weight()) + |
257 (features.ignored_count * logit.ignore_count_weight()) + | 257 (features.ignored_count * logit.ignore_count_weight()) + |
258 (features.accepted_ratio * logit.accept_ratio_weight()) + | 258 (features.accepted_ratio * logit.accept_ratio_weight()) + |
259 (features.denied_ratio * logit.decline_ratio_weight()) + | 259 (features.denied_ratio * logit.decline_ratio_weight()) + |
260 (features.ignored_ratio * logit.ignore_ratio_weight()) + | 260 (features.ignored_ratio * logit.ignore_ratio_weight()) + |
261 ScoreComponent(logit.source_language_weight(), features.src_lang) + | 261 ScoreComponent(logit.source_language_weight(), features.src_lang) + |
262 ScoreComponent(logit.dest_language_weight(), features.dst_lang) + | 262 ScoreComponent(logit.target_language_weight(), features.dst_lang) + |
263 ScoreComponent(logit.country_weight(), features.country) + | 263 ScoreComponent(logit.country_weight(), features.country) + |
264 ScoreComponent(logit.locale_weight(), features.app_locale); | 264 ScoreComponent(logit.locale_weight(), features.app_locale); |
265 | 265 |
266 return Sigmoid(dot_product + logit.bias()); | 266 return Sigmoid(dot_product + logit.bias()); |
267 } | 267 } |
268 | 268 |
269 void TranslateRankerImpl::FlushTranslateEvents( | 269 void TranslateRankerImpl::FlushTranslateEvents( |
270 std::vector<metrics::TranslateEventProto>* events) { | 270 std::vector<metrics::TranslateEventProto>* events) { |
271 DCHECK(sequence_checker_.CalledOnValidSequence()); | 271 DCHECK(sequence_checker_.CalledOnValidSequence()); |
272 DVLOG(3) << "Flushing translate ranker events."; | 272 DVLOG(3) << "Flushing translate ranker events."; |
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292 return model_loader_ != nullptr; | 292 return model_loader_ != nullptr; |
293 } | 293 } |
294 | 294 |
295 } // namespace translate | 295 } // namespace translate |
296 | 296 |
297 std::ostream& operator<<(std::ostream& stream, | 297 std::ostream& operator<<(std::ostream& stream, |
298 const translate::TranslateRankerFeatures& features) { | 298 const translate::TranslateRankerFeatures& features) { |
299 features.WriteTo(stream); | 299 features.WriteTo(stream); |
300 return stream; | 300 return stream; |
301 } | 301 } |
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