*SFst* is a library for normalizing, sampling, combining, and approximating *stochastic* (or *probabilistic*) finite-state transducers. These are weighted finite-state transducers, represented in OpenFst library format, that have two properties:

- a canonical format that may include epsilon and failure transitions under specified constraints
- a normalized weight distribution that assigns a (negative log) probability to each path leaving a state.

`phi_label`

) is specified to match the backoff label, typically 0, of the n-gram model.

This topic: GRM > WebHome > SFstLibrary

Topic revision: r22 - 2021-09-25 - KyleGorman

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