Module utils

Expand description

A collection of various utility helpers.

Structs§

DefaultDistributionSampler: Provides way to sample from different distributions.
DefaultRandom: A default random implementation.
Environment: Keeps track of environment specific information which influences algorithm behavior.
FixedBitArray: A bit array type of fixed size.
GenericError: A basic error type which, essentially, a wrapper on String type.
Noise: Provides way to generate some noise to floating point value.
Parallelism: Specifies data parallelism settings.
RandomGen: Provides underlying random generator API.
SelectionSamplingIterator: An iterator which visits given range using selection sampling (Algorithm S).
ThreadPool: Represents a thread pool wrapper.
TimeQuota: A time quota.

CollectGroupBy: An iterator which collects items into group.
DistributionSampler: Provides the way to sample from different distributions.
Quota: Specifies a computational quota for executions. The main purpose is to allow to stop algorithm in reaction to external events such as user cancellation, timer, etc.
Random: Provides the way to use randomized values in generic way.
SelectionSamplingSearch: Provides way to search with help of selection sampling algorithm on iterator where elements have ordered index values.
UnwrapValue: Unwraps value from inner state.

cartesian_product: Creates a cartesian product returning a parallel iterator.
create_range_sampling_iter: Returns a new iterator which samples some range from existing one.
fold_reduce: Performs fold and then reduce operations in parallel.
map_reduce: Performs map reduce operations in parallel.
parallel_collect: Maps collection and collects results into vector in parallel.
parallel_foreach_mut: Performs mutable foreach in parallel.
parallel_into_collect: Maps collection and collects results into vector in parallel.
random_argmax: Returns an index of max element in values. In case of many same max elements, returns the one from them at random.
short_type_name: Returns a short name of a type.

Float: Alias to a scalar floating type.
GenericResult: A type alias for result type with GenericError.
InfoLogger: A logger type which is called with various information.
Timer: Implements performance timer functionality, mostly exists due to problem with Instant on wasm32 arch.