Temporal Knowledge Graph Construction from Text

从文本构建时态知识图

• 批准号: 21K17816
• 负责人: K. Natthawut
• 金额: $ 2.25万
• 依托单位: Japan Advanced Institute of Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K17816/
• 关键词: Temporal Knowledge Graph; Knowledge Extraction; Financial Report; Financial Application; Knowledge Graph; Knowledge Representation; Relation Extraction; Event Extraction

This research aims to build a temporal knowledge graph from the text. In this fiscal year, we constructed FinKG, the temporal knowledge graph in the financial domain using information reported from SEC and market exchange. The temporal information including the report detail and stock price, is extracted using our financial ontology as a template. The temporal information is encoded at the edge of the knowledge graph. Overall, FinKG contained more than 30 million facts. Furthermore, we demonstrate the usefulness of FinKG with two applications: knowledge retrieval and stock price prediction. Knowledge retrieval reveals the complex connection among entities, while aggregated features from FinKG help neural models to better forecast stock prices.

本研究的目的是从文本中构建时间知识图谱。在本财年，我们使用SEC和市场交易所报告的信息构建了金融领域的时间知识图FinKG。使用我们的金融本体作为模板，提取了包括报告详细信息和股票价格在内的时间信息。时间信息在知识图的边缘被编码。总体而言，FinKG包含了3000多万个事实。此外，我们还通过两个应用：知识检索和股票价格预测，证明了FinKG的有效性。知识检索揭示了实体之间的复杂联系，而FinKG的聚合特征有助于神经模型更好地预测股价。

项目成果

FinKG: A Core Financial Knowledge Graph for Financial Analysis

• DOI: 10.1109/icsc56153.2023.00020
• 发表时间: 2023-02
• 期刊: 2023 IEEE 17th International Conference on Semantic Computing (ICSC)
• 作者: Natthawut Kertkeidkachorn;Rungsiman Nararatwong;Ziwei Xu;R. Ichise

Competent Triple Identification for Knowledge Graph Completion under the Open-World Assumption

开放世界假设下知识图补全的胜任三重识别

• DOI: 10.1587/transinf.2021edp7148
• 发表时间: 2022
• 期刊: IEICE Transactions on Information and Systems
• 影响因子: 0.7
• 作者: FARJANA Esrat;KERTKEIDKACHORN Natthawut;ICHISE Ryutaro
• 通讯作者: ICHISE Ryutaro