| Language | version | | -------- | --------------------------------------------------------------------------------------------- | | Python | | | Rust | |

LTP For Rust

传统机器学习方法（LTP 3）实现的 CWS / POS / NER 算法。

| method | ltp 3.0(c++) | ap(1) | ap(8) | pa | pa-i(0.5) | pa-ii(0.5) | | ------ | ------------ | ----- | ----- | ----- | --------- | ---------- | | cws | 97.83 | 97.93 | 97.67 | 97.90 | 97.90 | 97.93 | | pos | 98.35 | 98.41 | 98.30 | 98.39 | 98.39 | 98.38 | | ner | 94.17 | 94.28 | 93.42 | 94.02 | 94.06 | 93.95 |

快速使用

```rust use std::fs::File; use apache_avro::Codec; use itertools::multizip; use ltp::{CWSModel, POSModel, NERModel, ModelSerde, Format};

fn main() -> Result<(), Box> { let file = File::open("data/legacy-models/cwsmodel.bin")?; let cws: CWSModel = ModelSerde::load(file, Format::AVRO(Codec::Deflate))?; let file = File::open("data/legacy-models/posmodel.bin")?; let pos: POSModel = ModelSerde::load(file, Format::AVRO(Codec::Deflate))?; let file = File::open("data/legacy-models/ner_model.bin")?; let ner: NERModel = ModelSerde::load(file, Format::AVRO(Codec::Deflate))?;

let words = cws.predict("他叫汤姆去拿外衣。");
let pos = pos.predict(&words);
let ner = ner.predict((&words, &pos));

for (w, p, n) in multizip((words, pos, ner)) {
    println!("{}/{}/{}", w, p, n);
}

Ok(())

} ```

features

• [x] 分句
• [x] 任务
  • [x] 中文分词(cws)
  • [ ] 对数字、英文、网址、邮件的处理
  • [ ] 支持自定义词典
  • [x] 词性标注(pos)
  • [ ] 支持自定义词典
  • [x] 命名实体识别(ner)
• [x] 算法
  • [x] 平均感知机(ap)
  • [x] 单线程平均感知机
  • [x] 多线程平均感知机
  • [x] 被动攻击算法(pa)
• [ ] 模型量化
• [ ] 在线学习
• [ ] 增量学习

Benchmark Compare with Jieba

• File Size: 33.85 MB
• Hard Ware:
  • MacBook Pro (16-inch, 2019)
  • 处理器: 2.6 GHz 六核Intel Core i7
  • 内存: 16 GB 2667 MHz DDR4
  • 图形卡: Intel UHD Graphics 630 1536 MB

| Algorithm | Time(s) | Speed(KB/s) | | -------------- | ------: | ----------: | | Jieba cut | 35.29 | 982.49 | | LTP legacy(1) | 58.64 | 591.04 | | LTP legacy(2) | 30.64 | 1131.30 | | LTP legacy(4) | 17.14 | 2022.50 | | LTP legacy(8) | 11.39 | 3044.15 | | LTP legacy(16) | 9.88 | 3508.93 |

Benchmark Pipeline

• File Size: 33.85 MB
• Hard Ware:
  • MacBook Pro (16-inch, 2019)
  • 处理器: 2.6 GHz 六核Intel Core i7
  • 内存: 16 GB 2667 MHz DDR4
  • 图形卡: Intel UHD Graphics 630 1536 MB

| Algorithm | Time(s) | Speed(KB/s) | | -------------- | ------: | ----------: | | LTP legacy(1) | 139.70 | 248.11 | | LTP legacy(2) | 75.18 | 461.04 | | LTP legacy(4) | 42.96 | 806.76 | | LTP legacy(8) | 29.34 | 1181.39 | | LTP legacy(16) | 26.28 | 1318.84 |