TFCSSimpleLWTNNHandler class
#include <TFCSSimpleLWTNNHandler.h>

Reference

Class for a neural network read in the LWTNN format. Derived from the abstract base class VNetworkBase such that it can be used interchangeably with it's sibling classes, TFCSSimpleLWTNNHandler, TFCSGANLWTNNHandler, TFCSONNXHandler.

Frustratingly, LightweightNeuralNetwork and LightweightGraph from lwtnn do not have a common ancestor, they could be connected with the bridge pattern, but that is more complex that currently required.

The LoadNetwork function has VNetworkBase as it's return type so that it can make a run-time decision about which derived class to use, based on the file name presented.

Base classes

class VNetworkLWTNN: A template defining the interface to a lwtnn network.

Constructors, destructors, conversion operators

TFCSSimpleLWTNNHandler(const std::string& inputFile) explicit: TFCSSimpleLWTNNHandler constructor.
TFCSSimpleLWTNNHandler(const TFCSSimpleLWTNNHandler& copy_from): TFCSSimpleLWTNNHandler copy constructor.
VNetworkLWTNN(): VNetworkLWTNN copy constructor.

Public functions

auto compute(NetworkInputs const& inputs) const -> NetworkOutputs override: Function to pass values to the network.
auto getOutputLayers() const -> std::vector<std::string> override: List the names of the outputs.

Protected functions

void setupNet() override: Perform actions that prepare network for use.

Function documentation

TFCSSimpleLWTNNHandler::TFCSSimpleLWTNNHandler(const std::string& inputFile) explicit

TFCSSimpleLWTNNHandler constructor.

Parameters
inputFile	file-path on disk (with file name) of a readable lwtnn file containing a json format description of the network to be constructed, or the json itself as a string.

Calls setupPersistedVariables and setupNet.

TFCSSimpleLWTNNHandler::TFCSSimpleLWTNNHandler(const TFCSSimpleLWTNNHandler& copy_from)

TFCSSimpleLWTNNHandler copy constructor.

Parameters
copy_from	existing network that we are copying

Will copy the variables that would be generated by setupPersistedVariables and setupNet.

TFCSSimpleLWTNNHandler::VNetworkLWTNN()

VNetworkLWTNN copy constructor.

Will copy the variables that would be generated by setupPersistedVariables and setupNet. Will fail if deleteAllButNet has already been called.

NetworkOutputs TFCSSimpleLWTNNHandler::compute(NetworkInputs const& inputs) const override

Function to pass values to the network.

Parameters
inputs	values to be evaluated by the network
Returns	the output of the network

This function, hides variations in the formatted needed by different network libraries, providing a uniform input and output type.

std::vector<std::string> TFCSSimpleLWTNNHandler::getOutputLayers() const override

List the names of the outputs.

Outputs are stored in an NetworkOutputs object which is indexed by strings. This function returns the list of all strings that will index the outputs.

void TFCSSimpleLWTNNHandler::setupNet() override protected

Perform actions that prepare network for use.

Will be called in the streamer or class constructor after the inputs have been set (either automaically by the streamer or by setupPersistedVariables in the constructor). Does not delete any resources used.