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相关论文: A Unified Temporal Knowledge Graph Reasoning Model…

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Temporal knowledge graphs (TKGs) represent time-stamped relational facts and support a wide range of reasoning tasks over evolving events. However, existing methods produce entity representations that are static at the entity level, in that…

A Temporal Knowledge Graph (TKG) is a sequence of KGs corresponding to different timestamps. TKG reasoning aims to predict potential facts in the future given the historical KG sequences. One key of this task is to mine and understand…

人工智能 · 计算机科学 2022-03-22 Zixuan Li , Saiping Guan , Xiaolong Jin , Weihua Peng , Yajuan Lyu , Yong Zhu , Long Bai , Wei Li , Jiafeng Guo , Xueqi Cheng

Few-shot relational learning for static knowledge graphs (KGs) has drawn greater interest in recent years, while few-shot learning for temporal knowledge graphs (TKGs) has hardly been studied. Compared to KGs, TKGs contain rich temporal…

机器学习 · 计算机科学 2023-05-25 Zifeng Ding , Bailan He , Yunpu Ma , Zhen Han , Volker Tresp

Large language models (LLMs) have demonstrated strong performance in natural language generation but remain limited in knowle- dge-intensive tasks due to outdated or incomplete internal knowledge. Retrieval-Augmented Generation (RAG)…

人工智能 · 计算机科学 2025-08-05 Dong Li , Yichen Niu , Ying Ai , Xiang Zou , Biqing Qi , Jianxing Liu

Temporal knowledge graph (TKG) reasoning that infers future missing facts is an essential and challenging task. Predicting future events typically relies on closely related historical facts, yielding more accurate results for repetitive or…

机器学习 · 计算机科学 2025-01-20 Yukun Cao , Lisheng Wang , Luobin Huang

Temporal Knowledge graph completion (TKGC) is a crucial task that involves reasoning at known timestamps to complete the missing part of facts and has attracted more and more attention in recent years. Most existing methods focus on…

计算与语言 · 计算机科学 2024-03-05 Wenjie Xu , Ben Liu , Miao Peng , Xu Jia , Min Peng

Conventional embedding-based models approach event time prediction in temporal knowledge graphs (TKGs) as a ranking problem. However, they often fall short in capturing essential temporal relationships such as order and distance. In this…

计算与语言 · 计算机科学 2024-01-30 Siheng Xiong , Yuan Yang , Ali Payani , James C Kerce , Faramarz Fekri

Temporal Knowledge Graph (TKG) forecasting aims to predict future facts based on given histories. Most recent graph-based models excel at capturing structural information within TKGs but lack semantic comprehension abilities. Nowadays, with…

计算与语言 · 计算机科学 2024-06-10 Yuwei Xia , Ding Wang , Qiang Liu , Liang Wang , Shu Wu , Xiaoyu Zhang

Question answering over temporal knowledge graphs (TKGQA) has recently found increasing interest. TKGQA requires temporal reasoning techniques to extract the relevant information from temporal knowledge bases. The only existing TKGQA…

人工智能 · 计算机科学 2023-07-21 Zifeng Ding , Zongyue Li , Ruoxia Qi , Jingpei Wu , Bailan He , Yunpu Ma , Zhao Meng , Shuo Chen , Ruotong Liao , Zhen Han , Volker Tresp

Temporal knowledge graph reasoning (TKGR) is increasingly gaining attention for its ability to extrapolate new events from historical data, thereby enriching the inherently incomplete temporal knowledge graphs. Existing graph-based…

机器学习 · 计算机科学 2025-01-27 Jinze Sun , Yongpan Sheng , Lirong He , Yongbin Qin , Ming Liu , Tao Jia

Temporal knowledge graphs (TKGs) model the temporal evolution of events and have recently attracted increasing attention. Since TKGs are intrinsically incomplete, it is necessary to reason out missing elements. Although existing TKG…

人工智能 · 计算机科学 2023-04-11 Shangfei Zheng , Hongzhi Yin , Tong Chen , Quoc Viet Hung Nguyen , Wei Chen , Lei Zhao

Temporal Knowledge Graph Question Answering (TKGQA) aims to answer time-sensitive questions by leveraging factual information from Temporal Knowledge Graphs (TKGs). While previous studies have employed pre-trained TKG embeddings or graph…

计算与语言 · 计算机科学 2025-11-07 Xinying Qian , Ying Zhang , Yu Zhao , Baohang Zhou , Xuhui Sui , Xiaojie Yuan

Question answering in temporal knowledge graphs requires retrieval that is both time-consistent and efficient. Existing RAG methods are largely semantic and typically neglect explicit temporal constraints, which leads to time-inconsistent…

信息检索 · 计算机科学 2025-10-21 Zulun Zhu , Haoyu Liu , Mengke He , Siqiang Luo

The problem of career trajectory prediction (CTP) aims to predict one's future employer or job position. While several CTP methods have been developed for this problem, we posit that none of these methods (1) jointly considers the mutual…

机器学习 · 计算机科学 2024-12-30 Yeon-Chang Lee , JaeHyun Lee , Michiharu Yamashita , Dongwon Lee , Sang-Wook Kim

Temporal knowledge graph question answering (TKGQA) involves multi-hop reasoning over temporally constrained entity relationships in the knowledge graph to answer a given question. However, at each hop, large language models (LLMs) retrieve…

人工智能 · 计算机科学 2026-01-06 Wuzhenghong Wen , Chao Xue , Su Pan , Yuwei Sun , Minlong Peng

Temporal knowledge graphs (TKGs) have shown promise for reasoning tasks by incorporating a temporal dimension to represent how facts evolve over time. However, existing TKG reasoning (TKGR) models lack explainability due to their black-box…

机器学习 · 计算机科学 2023-10-10 Chenhan Yuan , Hoda Eldardiry

Reasoning on Temporal Knowledge Graphs (TKGs) is essential for predicting future events and time-aware facts. While existing methods are effective at capturing relational dynamics, their performance is limited by a closed-world assumption,…

人工智能 · 计算机科学 2026-04-14 Ze Zhao , Yuhui He , Lyuwen Wu , Gu Tang , Bin Lu , Xiaoying Gan , Luoyi Fu , Xinbing Wang , Chenghu Zhou

Test-time scaling has emerged as an effective way to improve language models on challenging reasoning tasks. However, most existing methods treat each problem in isolation and do not systematically reuse knowledge from prior reasoning…

计算与语言 · 计算机科学 2026-04-21 Di Wu , Devendra Singh Sachan , Wen-tau Yih , Mingda Chen

Knowledge graphs have been demonstrated to be an effective tool for numerous intelligent applications. However, a large amount of valuable knowledge still exists implicitly in the knowledge graphs. To enrich the existing knowledge graphs,…

人工智能 · 计算机科学 2020-11-17 Pengpeng Shao , Guohua Yang , Dawei Zhang , Jianhua Tao , Feihu Che , Tong Liu

In the last few years, there has been a surge of interest in learning representations of entitiesand relations in knowledge graph (KG). However, the recent availability of temporal knowledgegraphs (TKGs) that contain time information for…

计算与语言 · 计算机科学 2020-10-27 Chengjin Xu , Mojtaba Nayyeri , Fouad Alkhoury , Hamed Shariat Yazdi , Jens Lehmann