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Knowledge graphs are structured representations of facts in a graph, where nodes represent entities and edges represent relationships between them. Recent research has resulted in the development of several large KGs. However, all of them…

计算与语言 · 计算机科学 2020-04-17 Shikhar Vashishth

With the large volume of new information created every day, determining the validity of information in a knowledge graph and filling in its missing parts are crucial tasks for many researchers and practitioners. To address this challenge, a…

人工智能 · 计算机科学 2016-11-17 Baoxu Shi , Tim Weninger

Commonsense question answering is a crucial task that requires machines to employ reasoning according to commonsense. Previous studies predominantly employ an extracting-and-modeling paradigm to harness the information in KG, which first…

机器学习 · 计算机科学 2024-11-12 Boci Peng , Yongchao Liu , Xiaohe Bo , Sheng Tian , Baokun Wang , Chuntao Hong , Yan Zhang

Knowledge graph (KG) enhanced recommendation has demonstrated improved performance in the recommendation system (RecSys) and attracted considerable research interest. Recently the literature has adopted neural graph networks (GNNs) on the…

信息检索 · 计算机科学 2022-11-15 Liangwei Yang , Shen Wang , Jibing Gong , Shaojie Zheng , Shuying Du , Zhiwei Liu , Philip S. Yu

Knowledge graphs (KGs) consist of links that describe relationships between entities. Due to the difficulty of manually enumerating all relationships between entities, automatically completing them is essential for KGs. Knowledge Graph…

计算与语言 · 计算机科学 2024-06-07 Yusuke Sakai , Hidetaka Kamigaito , Katsuhiko Hayashi , Taro Watanabe

Injecting textual information into knowledge graph (KG) entity representations has been a worthwhile expedition in terms of improving performance in KG oriented tasks within the NLP community. External knowledge often adopted to enhance KG…

计算与语言 · 计算机科学 2023-10-26 Micheal Abaho , Yousef H. Alfaifi

Recent advances in knowledge graph completion (KGC) have emphasized text-based approaches to navigate the inherent complexities of large-scale knowledge graphs (KGs). While these methods have achieved notable progress, they frequently…

计算与语言 · 计算机科学 2025-06-16 Haotian Li , Rui Zhang , Lingzhi Wang , Bin Yu , Youwei Wang , Yuliang Wei , Kai Wang , Richard Yi Da Xu , Bailing Wang

Knowledge Graph Completion is a task of expanding the knowledge graph/base through estimating possible entities, or proper nouns, that can be connected using a set of predefined relations, or verb/predicates describing interconnections of…

计算与语言 · 计算机科学 2021-01-25 Tong Chen , Sirou Zhu , Yiming Wen , Zhaomin Zheng

The problem of knowledge graph (KG) reasoning has been widely explored by traditional rule-based systems and more recently by knowledge graph embedding methods. While logical rules can capture deterministic behavior in a KG they are brittle…

人工智能 · 计算机科学 2020-09-24 Susheel Suresh , Jennifer Neville

Knowledge Graph (KG) alignment is to discover the mappings (i.e., equivalent entities, relations, and others) between two KGs. The existing methods can be divided into the embedding-based models, and the conventional reasoning and lexical…

计算与语言 · 计算机科学 2021-06-14 Zhiyuan Qi , Ziheng Zhang , Jiaoyan Chen , Xi Chen , Yuejia Xiang , Ningyu Zhang , Yefeng Zheng

Knowledge graph (KG) embedding techniques use structured relationships between entities to learn low-dimensional representations of entities and relations. The traditional KG embedding techniques (such as TransE and DistMult) estimate these…

机器学习 · 计算机科学 2022-10-17 Saurav Manchanda

Recently, knowledge graph (KG) augmented models have achieved noteworthy success on various commonsense reasoning tasks. However, KG edge (fact) sparsity and noisy edge extraction/generation often hinder models from obtaining useful…

计算与语言 · 计算机科学 2021-06-07 Jun Yan , Mrigank Raman , Aaron Chan , Tianyu Zhang , Ryan Rossi , Handong Zhao , Sungchul Kim , Nedim Lipka , Xiang Ren

Knowledge graphs enable a wide variety of applications, including question answering and information retrieval. Despite the great effort invested in their creation and maintenance, even the largest (e.g., Yago, DBPedia or Wikidata) remain…

In the task of Knowledge Graph Completion (KGC), the existing datasets and their inherent subtasks carry a wealth of shared knowledge that can be utilized to enhance the representation of knowledge triplets and overall performance. However,…

计算与语言 · 计算机科学 2024-05-14 Yongxue Shan , Jie Zhou , Jie Peng , Xin Zhou , Jiaqian Yin , Xiaodong Wang

Incompleteness is a common problem for existing knowledge graphs (KGs), and the completion of KG which aims to predict links between entities is challenging. Most existing KG completion methods only consider the direct relation between…

机器学习 · 计算机科学 2019-09-27 Yao Zhu , Hongzhi Liu , Zhonghai Wu , Yang Song , Tao Zhang

Predicting missing links between entities in a knowledge graph is a fundamental task to deal with the incompleteness of data on the Web. Knowledge graph embeddings map nodes into a vector space to predict new links, scoring them according…

人工智能 · 计算机科学 2023-02-14 Cosimo Gregucci , Mojtaba Nayyeri , Daniel Hernández , Steffen Staab

Knowledge graphs (KGs) represent world's facts in structured forms. KG completion exploits the existing facts in a KG to discover new ones. Translation-based embedding model (TransE) is a prominent formulation to do KG completion. Despite…

人工智能 · 计算机科学 2019-10-11 Mojtaba Nayyeri , Chengjin Xu , Yadollah Yaghoobzadeh , Hamed Shariat Yazdi , Jens Lehmann

Knowledge Graph Completion (KGC) predicts missing facts in an incomplete Knowledge Graph. Almost all of existing KGC research is applicable to only one KG at a time, and in one language only. However, different language speakers may…

人工智能 · 计算机科学 2021-04-20 Harkanwar Singh , Prachi Jain , Mausam , Soumen Chakrabarti

Knowledge graph completion (KGC) aims to alleviate the inherent incompleteness of knowledge graphs (KGs), which is a critical task for various applications, such as recommendations on the web. Although knowledge graph embedding (KGE) models…

人工智能 · 计算机科学 2024-04-08 Tengfei Ma , Xiang song , Wen Tao , Mufei Li , Jiani Zhang , Xiaoqin Pan , Jianxin Lin , Bosheng Song , xiangxiang Zeng

Knowledge Graph Completion (KGC) aims to predict the missing [relation] part of (head entity)--[relation]->(tail entity) triplet. Most existing KGC methods focus on single features (e.g., relation types) or sub-graph aggregation. However,…

计算与语言 · 计算机科学 2024-09-27 Pengjie Liu