Cheng-Lung Sung


Nested Named Entity Recognition for Chinese Electronic Health Records with QA-based Sequence Labeling
Yu-Lun Chiang | Chih-Hao Lin | Cheng-Lung Sung | Keh-Yih Su
Proceedings of the 33rd Conference on Computational Linguistics and Speech Processing (ROCLING 2021)

This study presents a novel QA-based sequence labeling (QASL) approach to naturally tackle both flat and nested Named Entity Recogntion (NER) tasks on a Chinese Electronic Health Records (CEHRs) dataset. This proposed QASL approach parallelly asks a corresponding natural language question for each specific named entity type, and then identifies those associated NEs of the same specified type with the BIO tagging scheme. The associated nested NEs are then formed by overlapping the results of various types. In comparison with those pure sequence-labeling (SL) approaches, since the given question includes significant prior knowledge about the specified entity type and the capability of extracting NEs with different types, the performance for nested NER task is thus improved, obtaining 90.70% of F1-score. Besides, in comparison with the pure QA-based approach, our proposed approach retains the SL features, which could extract multiple NEs with the same types without knowing the exact number of NEs in the same passage in advance. Eventually, experiments on our CEHR dataset demonstrate that QASL-based models greatly outperform the SL-based models by 6.12% to 7.14% of F1-score.


Pluto: A Deep Learning Based Watchdog for Anti Money Laundering
Hao-Yuan Chen | Shang-Xuan Zou | Cheng-Lung Sung
Proceedings of the First Workshop on Financial Technology and Natural Language Processing


Term Contributed Boundary Feature using Conditional Random Fields for Chinese Word Segmentation Task
Tian-Jian Jiang | Shih-Hung Liu | Cheng-Lung Sung | Wen-Lian Hsu
Proceedings of the 22nd Conference on Computational Linguistics and Speech Processing (ROCLING 2010)

Term Contributed Boundary Tagging by Conditional Random Fields for SIGHAN 2010 Chinese Word Segmentation Bakeoff
Tian-Jian Jiang | Shih-Hung Liu | Cheng-Lung Sung | Wen-Lian Hsu
CIPS-SIGHAN Joint Conference on Chinese Language Processing


On Closed Task of Chinese Word Segmentation: An Improved CRF Model Coupled with Character Clustering and Automatically Generated Template Matching
Richard Tzong-Han Tsai | Hsieh-Chuan Hung | Cheng-Lung Sung | Hong-Jie Dai | Wen-Lian Hsu
Proceedings of the Fifth SIGHAN Workshop on Chinese Language Processing

BIOSMILE: Adapting Semantic Role Labeling for Biomedical Verbs:
Richard Tzong-Han Tsai | Wen-Chi Chou | Yu-Chun Lin | Cheng-Lung Sung | Wei Ku | Ying-Shan Su | Ting-Yi Sung | Wen-Lian Hsu
Proceedings of the HLT-NAACL BioNLP Workshop on Linking Natural Language and Biology


Chinese Word Auto-Confirmation Agent
Jia-Lin Tsai | Cheng-Lung Sung | Wen-Lian Hsu
Proceedings of Research on Computational Linguistics Conference XV