vibrato

Vibrato is a fast implementation of tokenization (or morphological analysis) based on the Viterbi algorithm.

API documentation

https://docs.rs/vibrato

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

lib.rs:

Vibrato

Vibrato is a fast implementation of tokenization (or morphological analysis) based on the viterbi algorithm.

Examples

use std::fs::File;
use std::io::{BufRead, BufReader};

use vibrato::{SystemDictionaryBuilder, Tokenizer};

// Loads a set of raw dictionary files
let dict = SystemDictionaryBuilder::from_readers(
    File::open("src/tests/resources/lex.csv")?,
    File::open("src/tests/resources/matrix.def")?,
    File::open("src/tests/resources/char.def")?,
    File::open("src/tests/resources/unk.def")?,
)?;
// or loads a compiled dictionary
// let reader = File::open("path/to/system.dic")?;
// let dict = Dictionary::read(reader)?;

let tokenizer = vibrato::Tokenizer::new(dict);
let mut worker = tokenizer.new_worker();

worker.reset_sentence("京都東京都");
worker.tokenize();
assert_eq!(worker.num_tokens(), 2);

let t0 = worker.token(0);
assert_eq!(t0.surface(), "京都");
assert_eq!(t0.range_char(), 0..2);
assert_eq!(t0.range_byte(), 0..6);
assert_eq!(t0.feature(), "京都,名詞,固有名詞,地名,一般,*,*,キョウト,京都,*,A,*,*,*,1/5");

let t1 = worker.token(1);
assert_eq!(t1.surface(), "東京都");
assert_eq!(t1.range_char(), 2..5);
assert_eq!(t1.range_byte(), 6..15);
assert_eq!(t1.feature(), "東京都,名詞,固有名詞,地名,一般,*,*,トウキョウト,東京都,*,B,5/9,*,5/9,*");