Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/lstm/series.cpp @ 40:aa33339d6b8a upstream

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ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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1 ///////////////////////////////////////////////////////////////////////
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2 // File: series.cpp
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3 // Description: Runs networks in series on the same input.
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4 // Author: Ray Smith
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5 //
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6 // (C) Copyright 2013, Google Inc.
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7 // Licensed under the Apache License, Version 2.0 (the "License");
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8 // you may not use this file except in compliance with the License.
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9 // You may obtain a copy of the License at
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10 // http://www.apache.org/licenses/LICENSE-2.0
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11 // Unless required by applicable law or agreed to in writing, software
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12 // distributed under the License is distributed on an "AS IS" BASIS,
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13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 // See the License for the specific language governing permissions and
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15 // limitations under the License.
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16 ///////////////////////////////////////////////////////////////////////
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18 #include "series.h"
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20 #include "fullyconnected.h"
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21 #include "networkscratch.h"
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22 #include "scrollview.h"
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23 #include "tesserrstream.h" // for tesserr
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24 #include "tprintf.h"
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26 namespace tesseract {
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27
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28 // ni_ and no_ will be set by AddToStack.
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29 Series::Series(const std::string &name) : Plumbing(name) {
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30 type_ = NT_SERIES;
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31 }
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32
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33 // Returns the shape output from the network given an input shape (which may
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34 // be partially unknown ie zero).
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35 StaticShape Series::OutputShape(const StaticShape &input_shape) const {
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36 StaticShape result(input_shape);
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37 int stack_size = stack_.size();
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38 for (int i = 0; i < stack_size; ++i) {
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39 result = stack_[i]->OutputShape(result);
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40 }
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41 return result;
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42 }
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43
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44 // Sets up the network for training. Initializes weights using weights of
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45 // scale `range` picked according to the random number generator `randomizer`.
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46 // Note that series has its own implementation just for debug purposes.
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47 int Series::InitWeights(float range, TRand *randomizer) {
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48 num_weights_ = 0;
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49 tprintf("Num outputs,weights in Series:\n");
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50 for (auto &i : stack_) {
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51 int weights = i->InitWeights(range, randomizer);
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52 tprintf(" %s:%d, %d\n", i->spec().c_str(), i->NumOutputs(), weights);
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53 num_weights_ += weights;
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54 }
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55 tprintf("Total weights = %d\n", num_weights_);
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56 return num_weights_;
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57 }
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58
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59 // Recursively searches the network for softmaxes with old_no outputs,
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60 // and remaps their outputs according to code_map. See network.h for details.
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61 int Series::RemapOutputs(int old_no, const std::vector<int> &code_map) {
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62 num_weights_ = 0;
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63 tprintf("Num (Extended) outputs,weights in Series:\n");
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64 for (auto &i : stack_) {
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65 int weights = i->RemapOutputs(old_no, code_map);
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66 tprintf(" %s:%d, %d\n", i->spec().c_str(), i->NumOutputs(), weights);
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67 num_weights_ += weights;
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68 }
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69 tprintf("Total weights = %d\n", num_weights_);
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70 no_ = stack_.back()->NumOutputs();
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71 return num_weights_;
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72 }
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73
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74 // Sets needs_to_backprop_ to needs_backprop and returns true if
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75 // needs_backprop || any weights in this network so the next layer forward
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76 // can be told to produce backprop for this layer if needed.
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77 bool Series::SetupNeedsBackprop(bool needs_backprop) {
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78 needs_to_backprop_ = needs_backprop;
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79 for (auto &i : stack_) {
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80 needs_backprop = i->SetupNeedsBackprop(needs_backprop);
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81 }
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82 return needs_backprop;
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83 }
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84
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85 // Returns an integer reduction factor that the network applies to the
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86 // time sequence. Assumes that any 2-d is already eliminated. Used for
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87 // scaling bounding boxes of truth data.
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88 // WARNING: if GlobalMinimax is used to vary the scale, this will return
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89 // the last used scale factor. Call it before any forward, and it will return
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90 // the minimum scale factor of the paths through the GlobalMinimax.
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91 int Series::XScaleFactor() const {
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92 int factor = 1;
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93 for (auto i : stack_) {
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94 factor *= i->XScaleFactor();
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95 }
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96 return factor;
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97 }
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98
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parents:
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99 // Provides the (minimum) x scale factor to the network (of interest only to
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
100 // input units) so they can determine how to scale bounding boxes.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
101 void Series::CacheXScaleFactor(int factor) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
102 stack_[0]->CacheXScaleFactor(factor);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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103 }
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parents:
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104
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
105 // Runs forward propagation of activations on the input line.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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106 // See NetworkCpp for a detailed discussion of the arguments.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
107 void Series::Forward(bool debug, const NetworkIO &input, const TransposedArray *input_transpose,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
108 NetworkScratch *scratch, NetworkIO *output) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
109 int stack_size = stack_.size();
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
110 ASSERT_HOST(stack_size > 1);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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111 // Revolving intermediate buffers.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
112 NetworkScratch::IO buffer1(input, scratch);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
113 NetworkScratch::IO buffer2(input, scratch);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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114 // Run each network in turn, giving the output of n as the input to n + 1,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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115 // with the final network providing the real output.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
116 stack_[0]->Forward(debug, input, input_transpose, scratch, buffer1);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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117 for (int i = 1; i < stack_size; i += 2) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
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118 stack_[i]->Forward(debug, *buffer1, nullptr, scratch, i + 1 < stack_size ? buffer2 : output);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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119 if (i + 1 == stack_size) {
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Franz Glasner <fzglas.hg@dom66.de>
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120 return;
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Franz Glasner <fzglas.hg@dom66.de>
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121 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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122 stack_[i + 1]->Forward(debug, *buffer2, nullptr, scratch,
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
123 i + 2 < stack_size ? buffer1 : output);
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Franz Glasner <fzglas.hg@dom66.de>
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124 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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125 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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126
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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127 // Runs backward propagation of errors on the deltas line.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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128 // See NetworkCpp for a detailed discussion of the arguments.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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129 bool Series::Backward(bool debug, const NetworkIO &fwd_deltas, NetworkScratch *scratch,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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130 NetworkIO *back_deltas) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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131 if (!IsTraining()) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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132 return false;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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133 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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134 int stack_size = stack_.size();
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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135 ASSERT_HOST(stack_size > 1);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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136 // Revolving intermediate buffers.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
137 NetworkScratch::IO buffer1(fwd_deltas, scratch);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
138 NetworkScratch::IO buffer2(fwd_deltas, scratch);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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139 // Run each network in reverse order, giving the back_deltas output of n as
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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140 // the fwd_deltas input to n-1, with the 0 network providing the real output.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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141 if (!stack_.back()->IsTraining() ||
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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142 !stack_.back()->Backward(debug, fwd_deltas, scratch, buffer1)) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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143 return false;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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144 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
145 for (int i = stack_size - 2; i >= 0; i -= 2) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
146 if (!stack_[i]->IsTraining() ||
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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147 !stack_[i]->Backward(debug, *buffer1, scratch, i > 0 ? buffer2 : back_deltas)) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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148 return false;
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parents:
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149 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
150 if (i == 0) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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151 return needs_to_backprop_;
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parents:
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152 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
153 if (!stack_[i - 1]->IsTraining() ||
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
154 !stack_[i - 1]->Backward(debug, *buffer2, scratch, i > 1 ? buffer1 : back_deltas)) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
155 return false;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
156 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
157 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
158 return needs_to_backprop_;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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159 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
160
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
161 // Splits the series after the given index, returning the two parts and
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
162 // deletes itself. The first part, up to network with index last_start, goes
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
163 // into start, and the rest goes into end.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
164 void Series::SplitAt(unsigned last_start, Series **start, Series **end) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
165 *start = nullptr;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
166 *end = nullptr;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
167 if (last_start >= stack_.size()) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
168 tesserr << "Invalid split index " << last_start
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
169 << " must be in range [0," << stack_.size() - 1 << "]!\n";
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
170 return;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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171 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
172 auto *master_series = new Series("MasterSeries");
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
173 auto *boosted_series = new Series("BoostedSeries");
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
174 for (unsigned s = 0; s <= last_start; ++s) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
175 if (s + 1 == stack_.size() && stack_[s]->type() == NT_SOFTMAX) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
176 // Change the softmax to a tanh.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
177 auto *fc = static_cast<FullyConnected *>(stack_[s]);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
178 fc->ChangeType(NT_TANH);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
179 }
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
180 master_series->AddToStack(stack_[s]);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
181 stack_[s] = nullptr;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
182 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
183 for (unsigned s = last_start + 1; s < stack_.size(); ++s) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
184 boosted_series->AddToStack(stack_[s]);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
185 stack_[s] = nullptr;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
186 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
187 *start = master_series;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
188 *end = boosted_series;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
189 delete this;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
190 }
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
191
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
192 // Appends the elements of the src series to this, removing from src and
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
193 // deleting it.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
194 void Series::AppendSeries(Network *src) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
195 ASSERT_HOST(src->type() == NT_SERIES);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
196 auto *src_series = static_cast<Series *>(src);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
197 for (auto &s : src_series->stack_) {
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198 AddToStack(s);
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199 s = nullptr;
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parents:
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200 }
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201 delete src;
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parents:
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202 }
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parents:
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203
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parents:
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204 } // namespace tesseract.