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Service robots are envisioned to be adaptive to their working environment based on situational knowledge. Recent research focused on designing visual representation of knowledge graphs for expert users. However, how to generate an…

Human-Computer Interaction · Computer Science 2021-01-27 Shengchen Zhang , Zixuan Wang , Chaoran Chen , Yi Dai , Lyumanshan Ye , Xiaohua Sun

Pretrained language models (LMs) do not capture factual knowledge very well. This has led to the development of a number of knowledge integration (KI) methods which aim to incorporate external knowledge into pretrained LMs. Even though KI…

Computation and Language · Computer Science 2022-11-17 Yifan Hou , Guoji Fu , Mrinmaya Sachan

The knowledge-grounded dialogue task aims to generate responses that convey information from given knowledge documents. However, it is a challenge for the current sequence-based model to acquire knowledge from complex documents and…

Computation and Language · Computer Science 2024-05-17 Yizhe Yang , Heyan Huang , Yang Gao , Jiawei Li and

Recent advances in Large Language Models (LLMs) have positioned them as a prominent solution for Natural Language Processing tasks. Notably, they can approach these problems in a zero or few-shot manner, thereby eliminating the need for…

Machine Learning · Computer Science 2025-05-07 Gerard Pons , Besim Bilalli , Anna Queralt

Despite the remarkable success of deep neural networks (DNNs) in computer vision, they fail to remain high-performing when facing distribution shifts between training and testing data. In this paper, we propose Knowledge-Guided Visual…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Hongkuan Zhou , Lavdim Halilaj , Sebastian Monka , Stefan Schmid , Yuqicheng Zhu , Bo Xiong , Steffen Staab

The incorporation of data analytics in the healthcare industry has made significant progress, driven by the demand for efficient and effective big data analytics solutions. Knowledge graphs (KGs) have proven utility in this arena and are…

Artificial Intelligence · Computer Science 2022-07-11 Bilal Abu-Salih , Muhammad AL-Qurishi , Mohammed Alweshah , Mohammad AL-Smadi , Reem Alfayez , Heba Saadeh

Knowledge graph embedding (KGE) is a technique that enhances knowledge graphs by addressing incompleteness and improving knowledge retrieval. A limitation of the existing KGE models is their underutilization of ontologies, specifically the…

Social and Information Networks · Computer Science 2025-04-07 Takanori Ugai

Multi-modal Knowledge Graphs (MMKGs) have been widely applied across various domains for knowledge representation. However, the existing MMKGs are significantly fewer than required, and their construction faces numerous challenges,…

Artificial Intelligence · Computer Science 2025-04-21 Yajing Xu , Zhiqiang Liu , Jiaoyan Chen , Mingchen Tu , Zhuo Chen , Jeff Z. Pan , Yichi Zhang , Yushan Zhu , Wen Zhang , Huajun Chen

The exploitation of syntactic graphs (SyGs) as a word's context has been shown to be beneficial for distributional semantic models (DSMs), both at the level of individual word representations and in deriving phrasal representations via…

Computation and Language · Computer Science 2021-06-04 Lorenzo Bertolini , Julie Weeds , David Weir , Qiwei Peng

Knowledge graph (KG) embeddings have shown great power in learning representations of entities and relations for link prediction tasks. Previous work usually embeds KGs into a single geometric space such as Euclidean space (zero curved),…

Machine Learning · Computer Science 2022-06-28 Zongsheng Cao , Qianqian Xu , Zhiyong Yang , Xiaochun Cao , Qingming Huang

Motivation: Biomedical knowledge graphs (KGs) are crucial for drug discovery and disease understanding, yet their completion and reasoning are challenging. Knowledge Embedding (KE) methods capture global semantics but struggle with dynamic…

Artificial Intelligence · Computer Science 2025-07-23 Yitong Lin , Jiaying He , Jiahe Chen , Xinnan Zhu , Jianwei Zheng , Tao Bo

A common solution to the semantic heterogeneity problem is to perform knowledge graph (KG) extension exploiting the information encoded in one or more candidate KGs, where the alignment between the reference KG and candidate KGs is…

Artificial Intelligence · Computer Science 2024-07-09 Daqian Shi , Xiaoyue Li , Fausto Giunchiglia

Knowledge graphs (KGs) have proven to be effective for high-quality recommendation, where the connectivities between users and items provide rich and complementary information to user-item interactions. Most existing methods, however, are…

Information Retrieval · Computer Science 2021-09-16 Xiao Sha , Zhu Sun , Jie Zhang

Extracting relevant and structured knowledge from large, complex technical documents within the Reliability and Maintainability (RAM) domain is labor-intensive and prone to errors. Our work addresses this challenge by presenting OntoKGen, a…

Artificial Intelligence · Computer Science 2024-12-11 Mohammad Sadeq Abolhasani , Rong Pan

Temporal Knowledge Graph (TKG) is an extension of traditional Knowledge Graph (KG) that incorporates the dimension of time. Reasoning on TKGs is a crucial task that aims to predict future facts based on historical occurrences. The key…

Artificial Intelligence · Computer Science 2024-01-26 Hao Dong , Pengyang Wang , Meng Xiao , Zhiyuan Ning , Pengfei Wang , Yuanchun Zhou

The traditional recommendation systems mainly use offline user data to train offline models, and then recommend items for online users, thus suffering from the unreliable estimation of user preferences based on sparse and noisy historical…

Information Retrieval · Computer Science 2021-10-14 Mengyuan Zhao , Xiaowen Huang , Lixi Zhu , Jitao Sang , Jian Yu

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

The autonomous driving (AD) industry is exploring the use of knowledge graphs (KGs) to manage the vast amount of heterogeneous data generated from vehicular sensors. The various types of equipped sensors include video, LIDAR and RADAR.…

Artificial Intelligence · Computer Science 2020-03-03 Ruwan Wickramarachchi , Cory Henson , Amit Sheth

Large language models (LLMs) have demonstrated impressive reasoning abilities in complex tasks. However, they lack up-to-date knowledge and experience hallucinations during reasoning, which can lead to incorrect reasoning processes and…

Computation and Language · Computer Science 2024-02-27 Linhao Luo , Yuan-Fang Li , Gholamreza Haffari , Shirui Pan

Knowledge graphs (KGs) enhance the performance of large language models (LLMs) and search engines by providing structured, interconnected data that improves reasoning and context-awareness. However, KGs only focus on text data, thereby…

Computation and Language · Computer Science 2024-08-09 Khai Le-Duc , Quy-Anh Dang , Tan-Hanh Pham , Truong-Son Hy
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