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Knowledge Graphs (KGs), representing facts as triples, have been widely adopted in many applications. Reasoning tasks such as link prediction and rule induction are important for the development of KGs. Knowledge Graph Embeddings (KGEs)…

Artificial Intelligence · Computer Science 2021-12-17 Wen Zhang , Shumin Deng , Mingyang Chen , Liang Wang , Qiang Chen , Feiyu Xiong , Xiangwen Liu , Huajun Chen

The exponential growth of global academic output has confronted researchers and AI agents with an unprecedented ``information explosion,'' where fragmented and unstructured knowledge organization impedes deep interdisciplinary integration.…

Artificial Intelligence · Computer Science 2026-05-25 Shuofei Qiao , Yunxiang Wei , Jiazheng Fan , Bin Wu , Busheng Zhang , Mengru Wang , Yuqi Zhu , Ningyu Zhang , Keyan Ding , Qiang Zhang , Huajun Chen

Knowledge graphs, as the cornerstone of many AI applications, usually face serious incompleteness problems. In recent years, there have been many efforts to study automatic knowledge graph completion (KGC), most of which use existing…

Computation and Language · Computer Science 2022-10-13 Xin Lv , Yankai Lin , Zijun Yao , Kaisheng Zeng , Jiajie Zhang , Lei Hou , Juanzi Li

Large Language Models (LLMs) have demonstrated remarkable capabilities in text generation and understanding, yet their reliance on implicit, unstructured knowledge often leads to factual inaccuracies and limited interpretability. Knowledge…

Computation and Language · Computer Science 2025-06-17 Qinggang Zhang

Even for a conservative estimate, 80% of enterprise data reside in unstructured files, stored in data lakes that accommodate heterogeneous formats. Classical search engines can no longer meet information seeking needs, especially when the…

Computation and Language · Computer Science 2024-06-06 Qiang Sun , Yuanyi Luo , Wenxiao Zhang , Sirui Li , Jichunyang Li , Kai Niu , Xiangrui Kong , Wei Liu

Knowledge graphs (KGs), i.e. representation of information as a semantic graph, provide a significant test bed for many tasks including question answering, recommendation, and link prediction. Various amount of scholarly metadata have been…

Artificial Intelligence · Computer Science 2019-04-30 Mojtaba Nayyeri , Sahar Vahdati , Jens Lehmann , Hamed Shariat Yazdi

Current science communication has a number of drawbacks and bottlenecks which have been subject of discussion lately: Among others, the rising number of published articles makes it nearly impossible to get a full overview of the state of…

Digital Libraries · Computer Science 2021-02-12 Arthur Brack , Anett Hoppe , Markus Stocker , Sören Auer , Ralph Ewerth

Knowledge Tracing (KT) aims to model a student's learning trajectory and predict performance on the next question. A key challenge is how to better represent the relationships among students, questions, and knowledge concepts (KCs).…

Artificial Intelligence · Computer Science 2026-01-26 Chi Yu , Hongyu Yuan , Zhiyi Duan

Machine Learning has been the quintessential solution for many AI problems, but learning is still heavily dependent on the specific training data. Some learning models can be incorporated with a prior knowledge in the Bayesian set up, but…

Computation and Language · Computer Science 2018-05-22 K M Annervaz , Somnath Basu Roy Chowdhury , Ambedkar Dukkipati

The Knowledge graph (KG) uses the triples to describe the facts in the real world. It has been widely used in intelligent analysis and applications. However, possible noises and conflicts are inevitably introduced in the process of…

Artificial Intelligence · Computer Science 2019-02-20 Shengbin Jia , Yang Xiang , Xiaojun Chen

Current science communication has a number of drawbacks and bottlenecks which have been subject of discussion lately: Among others, the rising number of published articles makes it nearly impossible to get an overview of the state of the…

Digital Libraries · Computer Science 2020-11-24 Arthur Brack , Anett Hoppe , Markus Stocker , Sören Auer , Ralph Ewerth

The increasing amount of published scholarly articles, exceeding 2.5 million yearly, raises the challenge for researchers in following scientific progress. Integrating the contributions from scholarly articles into a novel type of cognitive…

Digital Libraries · Computer Science 2024-09-12 Gollam Rabby , Sören Auer , Jennifer D'Souza , Allard Oelen

Knowledge Graph Embedding (KGE) models are used to learn continuous representations of entities and relations. A key task in the literature is predicting missing links between entities. However, Knowledge Graphs are not just sets of links…

Artificial Intelligence · Computer Science 2023-08-28 Thiviyan Thanapalasingam , Emile van Krieken , Peter Bloem , Paul Groth

Recent advances in information extraction have motivated the automatic construction of huge Knowledge Graphs (KGs) by mining from large-scale text corpus. However, noisy facts are unavoidably introduced into KGs that could be caused by…

Computation and Language · Computer Science 2020-08-18 Yaqing Wang , Fenglong Ma , Jing Gao

Knowledge graph embedding (KGE) models are often used to predict missing links for knowledge graphs (KGs). However, multiple KG embeddings can perform almost equally well for link prediction yet give conflicting predictions for unseen…

Artificial Intelligence · Computer Science 2024-10-07 Yuqicheng Zhu , Nico Potyka , Mojtaba Nayyeri , Bo Xiong , Yunjie He , Evgeny Kharlamov , Steffen Staab

The rapid expansion of publicly-available medical data presents a challenge for clinicians and researchers alike, increasing the gap between the volume of scientific literature and its applications. The steady growth of studies and findings…

Artificial Intelligence · Computer Science 2025-08-06 Taine J. Elliott , Stephen P. Levitt , Ken Nixon , Martin Bekker

In recent years, the introduction of knowledge graphs (KGs) has significantly advanced recommender systems by facilitating the discovery of potential associations between items. However, existing methods still face several limitations.…

Information Retrieval · Computer Science 2025-04-18 Ziqiang Cui , Yunpeng Weng , Xing Tang , Fuyuan Lyu , Dugang Liu , Xiuqiang He , Chen Ma

One of the key requirements to facilitate semantic analytics of information regarding contemporary and historical events on the Web, in the news and in social media is the availability of reference knowledge repositories containing…

Computation and Language · Computer Science 2018-04-13 Simon Gottschalk , Elena Demidova

We present CoDEx, a set of knowledge graph completion datasets extracted from Wikidata and Wikipedia that improve upon existing knowledge graph completion benchmarks in scope and level of difficulty. In terms of scope, CoDEx comprises three…

Computation and Language · Computer Science 2020-10-07 Tara Safavi , Danai Koutra

With the explosive growth of artificial intelligence (AI) and big data, it has become vitally important to organize and represent the enormous volume of knowledge appropriately. As graph data, knowledge graphs accumulate and convey…

Artificial Intelligence · Computer Science 2023-03-27 Ciyuan Peng , Feng Xia , Mehdi Naseriparsa , Francesco Osborne