Results 11 to 20 of about 8,673 (229)

AugGKG: a grid-augmented geographic knowledge graph representation and spatio-temporal query model

open access: yesInternational Journal of Digital Earth, 2023
As an emerging knowledge representation model in the domain of knowledge graphs, geographic knowledge graph can take full advantage of semantic, spatial and temporal information to facilitate answering spatio-temporal questions and completing relations ...
Bing Han   +6 more
doaj   +1 more source

Diachronic Embedding for Temporal Knowledge Graph Completion

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2020
Knowledge graphs (KGs) typically contain temporal facts indicating relationships among entities at different times. Due to their incompleteness, several approaches have been proposed to infer new facts for a KG based on the existing ones–a problem known as KG completion.
Rishab Goel   +3 more
openaire   +3 more sources

Enhanced Temporal Knowledge Graph Completion via Learning High-Order Connectivity and Attribute Information

open access: yesApplied Sciences, 2023
Temporal knowledge graph completion (TKGC) refers to the prediction and filling in of missing facts on time series, which is essential for many downstream applications.
Minwei Wen   +3 more
doaj   +1 more source

TBRm: A Time Representation Method for Industrial Knowledge Graph

open access: yesApplied Sciences, 2022
With the development of the artificial intelligence industry, Knowledge Graph (KG), as a concise and intuitive data presentation form, has received extensive attention and research from both academia and industry in recent years.
Keyan Cao, Chuang Zheng
doaj   +1 more source

Search to Pass Messages for Temporal Knowledge Graph Completion

open access: yesFindings of the Association for Computational Linguistics: EMNLP 2022, 2022
Completing missing facts is a fundamental task for temporal knowledge graphs (TKGs). Recently, graph neural network (GNN) based methods, which can simultaneously explore topological and temporal information, have become the state-of-the-art (SOTA) to complete TKGs.
Zhen Wang 0004   +3 more
openaire   +2 more sources

Time in a Box [PDF]

open access: yesProceedings of the 11th Knowledge Capture Conference, 2021
Almost all statements in knowledge bases have a temporal scope during which they are valid. Hence, knowledge base completion (KBC) on temporal knowledge bases (TKB), where each statement \textit{may} be associated with a temporal scope, has attracted growing attention.
Ling Cai 0002   +4 more
openaire   +3 more sources

JOINT FEATURES-BASED KNOWLEDGE GRAPH COMPLETION [PDF]

open access: yesInternational Journal of Intelligent Computing and Information Sciences
Knowledge graphs (KGs) help in resolving data inconsistencies and redundancies by organizing information in a unified structure, paving the way for building scalable, interpretable AI systems, as they provide a transparent way to trace reasoning paths ...
Maha Farghaly   +2 more
doaj   +1 more source

Learning Sequence Encoders for Temporal Knowledge Graph Completion [PDF]

open access: yesProceedings of the 2018 Conference on Empirical Methods in Natural Language Processing, 2018
Research on link prediction in knowledge graphs has mainly focused on static multi-relational data. In this work we consider temporal knowledge graphs where relations between entities may only hold for a time interval or a specific point in time. In line with previous work on static knowledge graphs, we propose to address this problem by learning ...
Alberto García-Durán   +2 more
openaire   +3 more sources

Hyperplane-based time-aware knowledge graph embedding for temporal knowledge graph completion

open access: yesJournal of Intelligent & Fuzzy Systems, 2022
Knowledge Graph (KG) embedding approaches have been proved effective to infer new facts for a KG based on the existing ones–a problem known as KG completion. However, most of them have focused on static KGs, in fact, relational facts in KGs often show temporal dynamics, e.g., the fact (US, has president, Barack Obama, [2009–2017]) is only valid from ...
Peng He   +4 more
openaire   +2 more sources

A Survey on Temporal Knowledge Graph Completion: Taxonomy, Progress, and Prospects

open access: yesCoRR, 2023
Temporal characteristics are prominently evident in a substantial volume of knowledge, which underscores the pivotal role of Temporal Knowledge Graphs (TKGs) in both academia and industry. However, TKGs often suffer from incompleteness for three main reasons: the continuous emergence of new knowledge, the weakness of the algorithm for extracting ...
Jiapu Wang   +10 more
openaire   +2 more sources

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