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| Chinese-Vietnamese Cross-Language Event Retrieval Incorporating Event Knowledge |
| HUANG Yuxin1,2, DENG Tongjie1,2, YU Zhengtao1,2, XIAN Yantuan1,2 |
1. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650504;
2. Key Laboratory of Artificial Intelligence in Yunnan Province, Kunming University of Science and Technology, Kunming 650504 |
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Abstract The goal of Chinese-Vietnamese cross-language event retrieval task is to retrieve Vietnamese documents expressing the same event based on the input Chinese query. Existing cross-language retrieval models exhibit poor alignment in Chinese-Vietnamese low-resource retrieval, and simple semantic matching retrieval struggles to comprehend the event semantic information of complex queries. To address this issue, a Chinese-Vietnamese cross-language event retrieval method incorporating event knowledge is proposed. A Chinese-Vietnamese cross-language event pre-training module is built for continuous pre-training to improve the representation performance of the model on Chinese-Vietnamese low-resource languages. The difference between the masked predicted values and the true values of the event is discriminated based on contrastive learning to encourage the model to better understand and capture the event knowledge features. Experiments on cross-language event retrieval tasks and cross-language question-and-answer tasks demonstrate the performance improvement of the proposed method.
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Received: 05 September 2023
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| Fund:National Natural Science Foundation of China(No.U21B2027,61972186,6226028), Science and Technology Major Special Projects of Yunnan Province(No.202302AD080003,202103AA080015,202202202AD080003), Key Basic Research Projects of Yunnan Province(No.202203AP140100), Fundamental Research Projects of Yunnan Province(No.202301AS070047,202301AT070471), Kunming University of Technology's "Double First Class" Joint Special Project(No.202201BE070001-021) |
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Corresponding Authors:
YU Zhengtao, Ph.D., professor. His research interests includes na-tural language processing, information retrie-val and machine translation.
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| About author:: HUANG Yuxin, Ph.D., associate profe-ssor. His research interests include natural language processing and text summarization.DENG Tongjie, master student. His research interests include natural language processing and information retrievalXIAN Yantuan, Ph.D., associate profe-ssor. His research interests include natural language processing, information retrieval and machine translation. |
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2023, Vol. 36 
