图 书 馆
一种联合分段和标注的中文词法分析方法A Joint Segmenting and Labeling Approach for Chinese Lexical Analysis |
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| 课程网址: | http://videolectures.net/ecmlpkdd08_wang_ajsa/ |
| 主讲教师: | Xihong Wu; Jiazhong Nie; Xinhao Wang; Dingsheng Luo |
| 开课单位: | 北京大学 |
| 开课时间: | 信息不详。欢迎您在右侧留言补充。 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | This paper introduces an approach which jointly performs a cascade of segmentation and labeling subtasks for Chinese lexical analysis, including word segmentation, named entity recognition and part-of-speech tagging. Unlike the traditional pipeline manner, the cascaded subtasks are conducted in a single step simultaneously, therefore error propagation could be avoided and the information could be shared among multi-level subtasks. In this approach, Weighted Finite State Transducers (WFSTs) are adopted. Within the unified framework of WFSTs, the models for each subtask are represented and then combined into a single one. Thereby, through one-pass decoding the joint optimal outputs for multi-level processes will be reached. The experimental results show the effectiveness of the presented joint processing approach, which significantly outperforms the traditional method in pipeline style. |
| 关 键 词: | 机器学习; 词法分析; 传感器 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-12-05：cwx |
| 阅读次数: | 38 |