Class QMnistDataset
Defined in File datasets.h
Inheritance Relationships
Base Type
public mindspore::dataset::Dataset
(Class Dataset)
Class Documentation
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class QMnistDataset : public mindspore::dataset::Dataset
A source dataset that reads and parses QMNIST dataset.
Public Functions
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QMnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, bool compat, const std::shared_ptr<Sampler> &sampler, const std::shared_ptr<DatasetCache> &cache)
Constructor of QMnistDataset.
- Parameters
dataset_dir – [in] Path to the root directory that contains the dataset.
usage – [in] Usage of QMNIST, can be “train”, “test”, “test10k”, “test50k”, “nist” or “all”.
compat – [in] Whether the label for each example is class number (compat=true) or the full QMNIST information (compat=false).
sampler – [in] Shared pointer to a sampler object used to choose samples from the dataset. If sampler is not given, a
RandomSampler
will be used to randomly iterate the entire dataset.cache – [in] Tensor cache to use.
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QMnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, bool compat, const Sampler *sampler, const std::shared_ptr<DatasetCache> &cache)
Constructor of QMnistDataset.
- Parameters
dataset_dir – [in] Path to the root directory that contains the dataset.
usage – [in] Usage of QMNIST, can be “train”, “test”, “test10k”, “test50k”, “nist” or “all”.
compat – [in] Whether the label for each example is class number (compat=true) or the full QMNIST information (compat=false).
sampler – [in] Raw pointer to a sampler object used to choose samples from the dataset.
cache – [in] Tensor cache to use.
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QMnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, bool compat, const std::reference_wrapper<Sampler> &sampler, const std::shared_ptr<DatasetCache> &cache)
Constructor of QMnistDataset.
- Parameters
dataset_dir – [in] Path to the root directory that contains the dataset.
usage – [in] Usage of QMNIST, can be “train”, “test”, “test10k”, “test50k”, “nist” or “all”.
compat – [in] Whether the label for each example is class number (compat=true) or the full QMNIST information (compat=false).
sampler – [in] Sampler object used to choose samples from the dataset.
cache – [in] Tensor cache to use.
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~QMnistDataset() override = default
Destructor of QMnistDataset.
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QMnistDataset(const std::vector<char> &dataset_dir, const std::vector<char> &usage, bool compat, const std::shared_ptr<Sampler> &sampler, const std::shared_ptr<DatasetCache> &cache)