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Previous literatures show that pre-trained masked language models (MLMs) such as BERT can achieve competitive factual knowledge extraction performance on some datasets, indicating that MLMs can potentially be a reliable knowledge source. In…

Computation and Language · Computer Science 2021-06-18 Boxi Cao , Hongyu Lin , Xianpei Han , Le Sun , Lingyong Yan , Meng Liao , Tong Xue , Jin Xu

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…

Computation and Language · Computer Science 2021-01-25 Tong Chen , Sirou Zhu , Yiming Wen , Zhaomin Zheng

Increasing amounts of freely available data both in textual and relational form offers exploration of richer document representations, potentially improving the model performance and robustness. An emerging problem in the modern era is fake…

Computation and Language · Computer Science 2022-02-16 Boshko Koloski , Timen Stepišnik-Perdih , Marko Robnik-Šikonja , Senja Pollak , Blaž Škrlj

Graph neural networks are prominent models for representation learning over graph-structured data. While the capabilities and limitations of these models are well-understood for simple graphs, our understanding remains incomplete in the…

Machine Learning · Computer Science 2023-10-27 Xingyue Huang , Miguel Romero Orth , İsmail İlkan Ceylan , Pablo Barceló

Learned knowledge graph representations supporting robots contain a wealth of domain knowledge that drives robot behavior. However, there does not exist an inference reconciliation framework that expresses how a knowledge graph…

Artificial Intelligence · Computer Science 2022-05-05 Angel Daruna , Devleena Das , Sonia Chernova

A variety of knowledge graph embedding approaches have been developed. Most of them obtain embeddings by learning the structure of the knowledge graph within a link prediction setting. As a result, the embeddings reflect only the structure…

Artificial Intelligence · Computer Science 2024-07-08 N'Dah Jean Kouagou , Caglar Demir , Hamada M. Zahera , Adrian Wilke , Stefan Heindorf , Jiayi Li , Axel-Cyrille Ngonga Ngomo

Knowledge graphs (KGs) have gained prominence for their ability to learn representations for uni-relational facts. Recently, research has focused on modeling hyper-relational facts, which move beyond the restriction of uni-relational facts…

Machine Learning · Computer Science 2022-08-31 Harry Shomer , Wei Jin , Juanhui Li , Yao Ma , Jiliang Tang

Knowledge graphs are widely used as a typical resource to provide answers to factoid questions. In simple question answering over knowledge graphs, relation extraction aims to predict the relation of a factoid question from a set of…

Computation and Language · Computer Science 2020-07-07 Amin Abolghasemi , Saeedeh Momtazi

Knowledge Graph (KG) is playing an increasingly important role in various AI systems. For e-commerce, an efficient and low-cost automated knowledge graph construction method is the foundation of enabling various successful downstream…

Artificial Intelligence · Computer Science 2024-10-29 Zhantao Yang , Han Zhang , Fangyi Chen , Anudeepsekhar Bolimera , Marios Savvides

An agent who interacts with a wide population of other agents needs to be aware that there may be variations in their understanding of the world. Furthermore, the machinery which they use to perceive may be inherently different, as is the…

Artificial Intelligence · Computer Science 2019-11-20 Rodolfo Corona , Stephan Alaniz , Zeynep Akata

We investigate knowledge exchange among commercial organisations, the rationale behind it and its effects on the market. Knowledge exchange is known to be beneficial for industry, but in order to explain it, authors have used high level…

Multiagent Systems · Computer Science 2007-05-23 Maria Chli , Philippe De Wilde

Automated decision making is often complicated by the complexity of the knowledge involved. Much of this complexity arises from the context sensitive variations of the underlying phenomena. We propose a framework for representing…

Artificial Intelligence · Computer Science 2013-03-25 Tze-Yun Leong

Relation extraction (RE) aims at extracting the relation between two entities from the text corpora. It is a crucial task for Knowledge Graph (KG) construction. Most existing methods predict the relation between an entity pair by learning…

Computation and Language · Computer Science 2020-11-30 Jun Kuang , Yixin Cao , Jianbing Zheng , Xiangnan He , Ming Gao , Aoying Zhou

Representation learning of knowledge bases (KBs) aims to embed both entities and relations into a low-dimensional space. Most existing methods only consider direct relations in representation learning. We argue that multiple-step relation…

Computation and Language · Computer Science 2015-08-18 Yankai Lin , Zhiyuan Liu , Huanbo Luan , Maosong Sun , Siwei Rao , Song Liu

We study the problem of learning representations of entities and relations in knowledge graphs for predicting missing links. The success of such a task heavily relies on the ability of modeling and inferring the patterns of (or between) the…

Machine Learning · Computer Science 2019-02-28 Zhiqing Sun , Zhi-Hong Deng , Jian-Yun Nie , Jian Tang

Many real-world domains can be expressed as graphs and, more generally, as multi-relational knowledge graphs. Though reasoning and learning with knowledge graphs has traditionally been addressed by symbolic approaches, recent methods in…

Artificial Intelligence · Computer Science 2020-03-25 Sebastijan Dumancic , Alberto Garcia-Duran , Mathias Niepert

The rash development of knowledge graph research has brought big driving force to its application in many areas, including the medicine and healthcare domain. However, we have found that the application of some major information processing…

Artificial Intelligence · Computer Science 2026-01-23 Chuanqing Wang , Zhenmin Zhao , Shanshan Du , Chaoqun Fei , Songmao Zhang , Ruqian Lu

Knowledge bases provide applications with the benefit of easily accessible, systematic relational knowledge but often suffer in practice from their incompleteness and lack of knowledge of new entities and relations. Much work has focused on…

Computation and Language · Computer Science 2013-03-19 Danqi Chen , Richard Socher , Christopher D. Manning , Andrew Y. Ng

To reach consensus among interacting agents is a problem of interest for social, economical, and political systems. A computational and mathematical framework to investigate consensus dynamics on complex networks is naming games. In…

Physics and Society · Physics 2018-09-10 Zhong-Yan Fan , Ying-Cheng Lai , Wallace Kit-Sang Tang

Information availability affects people's behavior and perception of the world. Notably, people rely on search engines to satisfy their need for information. Search engines deliver results relevant to user requests usually without being or…

Information Retrieval · Computer Science 2021-10-19 Aldo Lipani , Florina Piroi , Emine Yilmaz