Please see https://github.com/OCR-D/ocrd-train/blob/f89efdd46c01aedea615d35e0561c50d7f86e584/Makefile
learning rate does not need to be specified for finetuning. It is automatically determined/reduced - see https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00#net-mode-and-optimization On Sun, Mar 10, 2019 at 11:23 AM <[email protected]> wrote: > In the ocrd-train Makefile, here is the code for finetuning > > > ifdef START_MODEL > $(LAST_CHECKPOINT): unicharset lists $(PROTO_MODEL) > mkdir -p data/checkpoints > lstmtraining > --traineddata $(PROTO_MODEL) > --old_traineddata $(TESSDATA)/$(START_MODEL).traineddata > --continue_from data/$(START_MODEL)/$(START_MODEL).lstm > --net_spec "[1,36,0,1 Ct3,3,16 Mp3,3 Lfys48 Lfx96 Lrx96 Lfx256 O1chead > -n1 data/unicharset]" > --model_output data/checkpoints/$(MODEL_NAME) > --learning_rate 20e-4 > --train_listfile data/list.train > --eval_listfile data/list.eval > --max_iterations 10000 > > > Why do we need the following line? I thought it was only used in training > from scratch. > --net_spec "[1,36,0,1 Ct3,3,16 Mp3,3 Lfys48 Lfx96 Lrx96 Lfx256 O1chead > -n1 data/unicharset]" \ > > > Should the learning rate be set lower for fine-tuning? The learning rate > for training from scratch is 20e-4, so it would seem that the learning rate > for fine-tuning should be significantly lower? > --learning_rate 20e-4 \ > > -- > You received this message because you are subscribed to the Google Groups > "tesseract-ocr" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/tesseract-ocr. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/d1c9058e-3885-4ae7-9602-cf9033ccd87f%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/d1c9058e-3885-4ae7-9602-cf9033ccd87f%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- ____________________________________________________________ भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAG2NduU5i%2BOmg7_5tWcCV16O-zBf05AWwidK-Jj7CPFxhFW7fw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
