Method buildGetChanges

src/neural-network-gpu.js:196–236

()

  }

  buildGetChanges() {
    for (let layer = 1; layer <= this.outputLayer; layer++) {
      this.changesPropagate[layer] = this.gpu.createKernelMap({
          weights: GPU.alias('addWeights', addWeights),
          changes: GPU.alias('calcChanges', calcChanges)
        },
        function(previousOutputs, deltas, weights, changes) {
          let change = calcChanges(
            changes,
            deltas,
            previousOutputs);

            return addWeights(change, weights);
        }, {
          output: [this.sizes[layer - 1], this.sizes[layer]],
          outputToTexture: true,
          hardcodeConstants: true,
          constants:{
            size: this.outputs[layer - 1].length,
            learningRate: this.trainOpts.learningRate,
            momentum: this.trainOpts.momentum
          }
        });

      this.copyChanges[layer] = this.gpu.createKernel(function(value) {
        return value[this.thread.y][this.thread.x];
      }, {
        output: this.changesPropagate[layer].output,
        outputToTexture: true,
        hardCodeConstants: true
      });

      this.copyWeights[layer] = this.gpu.createKernel(function(value) {
        return value[this.thread.y][this.thread.x];
      }, {
        output: this.changesPropagate[layer].output,
        outputToTexture: true,
        hardCodeConstants: true
      });
    }    
  }
  
  getChanges() {
    for (let layer = 1; layer <= this.outputLayer; layer++) {