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Knowledge graphs (KGs) play a crucial role in many applications, such as question answering, but incompleteness is an urgent issue for their broad application. Much research in knowledge graph completion (KGC) has been performed to resolve…

人工智能 · 计算机科学 2023-01-10 Yinyu Lan , Shizhu He , Kang Liu , Jun Zhao

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)…

人工智能 · 计算机科学 2021-12-17 Wen Zhang , Shumin Deng , Mingyang Chen , Liang Wang , Qiang Chen , Feiyu Xiong , Xiangwen Liu , Huajun Chen

Concepts benefit natural language understanding but are far from complete in existing knowledge graphs (KGs). Recently, pre-trained language models (PLMs) have been widely used in text-based concept extraction (CE). However, PLMs tend to…

计算与语言 · 计算机科学 2023-06-13 Siyu Yuan , Deqing Yang , Jinxi Liu , Shuyu Tian , Jiaqing Liang , Yanghua Xiao , Rui Xie

Querying knowledge graphs (KGs) using deep learning approaches can naturally leverage the reasoning and generalization ability to learn to infer better answers. Traditional neural complex query answering (CQA) approaches mostly work on…

计算与语言 · 计算机科学 2023-10-30 Jiaxin Bai , Xin Liu , Weiqi Wang , Chen Luo , Yangqiu Song

Event correlation reasoning infers whether a natural language paragraph containing multiple events conforms to human common sense. For example, "Andrew was very drowsy, so he took a long nap, and now he is very alert" is sound and…

计算与语言 · 计算机科学 2021-10-14 Yucheng Zhou , Xiubo Geng , Tao Shen , Guodong Long , Daxin Jiang

Knowledge Graphs (KG) are of vital importance for multiple applications on the web, including information retrieval, recommender systems, and metadata annotation. Regardless of whether they are built manually by domain experts or with…

计算与语言 · 计算机科学 2026-05-12 Daniel Daza , Michael Cochez , Paul Groth

Knowledge graph reasoning in the fully-inductive setting, where both entities and relations at test time are unseen during training, remains an open challenge. In this work, we introduce GraphOracle, a novel framework that achieves robust…

机器学习 · 计算机科学 2025-12-30 Enjun Du , Siyi Liu , Yongqi Zhang

Link prediction in a graph is the problem of detecting the missing links that would be formed in the near future. Using a graph representation of the data, we can convert the problem of classification to the problem of link prediction which…

机器学习 · 计算机科学 2018-10-02 Seyed Amin Fadaee , Maryam Amir Haeri

Relational graph neural networks have garnered particular attention to encode graph context in knowledge graphs (KGs). Although they achieved competitive performance on small KGs, how to efficiently and effectively utilize graph context for…

计算与语言 · 计算机科学 2022-05-16 Huijuan Wang , Siming Dai , Weiyue Su , Hui Zhong , Zeyang Fang , Zhengjie Huang , Shikun Feng , Zeyu Chen , Yu Sun , Dianhai Yu

LLM post-training has primarily relied on large text corpora and human feedback, without capturing the structure of domain knowledge. This has caused models to struggle dealing with complex reasoning tasks, especially for high-stakes…

计算与语言 · 计算机科学 2026-01-21 Dezhao Song , Guglielmo Bonifazi , Frank Schilder , Jonathan Richard Schwarz

Electronic Health Records (EHRs) contain rich temporal dynamics that conventional encoding approaches fail to adequately capture. While Large Language Models (LLMs) show promise for EHR modeling, they struggle to reason about sequential…

人工智能 · 计算机科学 2025-10-01 Zekai Chen , Arda Pekis , Kevin Brown

Link prediction is critical for the application of incomplete knowledge graph (KG) in the downstream tasks. As a family of effective approaches for link predictions, embedding methods try to learn low-rank representations for both entities…

计算与语言 · 计算机科学 2019-11-22 Canran Xu , Ruijiang Li

Identifying causal relations is crucial for a variety of downstream tasks. In additional to observational data, background knowledge (BK), which could be attained from human expertise or experiments, is usually introduced for uncovering…

人工智能 · 计算机科学 2024-07-23 Tian-Zuo Wang , Lue Tao , Zhi-Hua Zhou

Event Argument extraction refers to the task of extracting structured information from unstructured text for a particular event of interest. The existing works exhibit poor capabilities to extract causal event arguments like Reason and…

计算与语言 · 计算机科学 2021-05-04 Debanjana Kar , Sudeshna Sarkar , Pawan Goyal

Knowledge graph (KG) embeddings have been a mainstream approach for reasoning over incomplete KGs. However, limited by their inherently shallow and static architectures, they can hardly deal with the rising focus on complex logical queries,…

机器学习 · 计算机科学 2022-08-17 Xiao Liu , Shiyu Zhao , Kai Su , Yukuo Cen , Jiezhong Qiu , Mengdi Zhang , Wei Wu , Yuxiao Dong , Jie Tang

Entities and events are crucial to natural language reasoning and common in procedural texts. Existing work has focused either exclusively on entity state tracking (e.g., whether a pan is hot) or on event reasoning (e.g., whether one would…

计算与语言 · 计算机科学 2023-02-17 Li Zhang , Hainiu Xu , Yue Yang , Shuyan Zhou , Weiqiu You , Manni Arora , Chris Callison-Burch

Link Prediction(LP) is an essential task over Knowledge Graphs(KGs), traditionally focussed on using and predicting the relations between entities. Textual entity descriptions have already been shown to be valuable, but models that…

机器学习 · 计算机科学 2024-07-26 Moritz Blum , Basil Ell , Hannes Ill , Philipp Cimiano

Knowledge Graph Retrieval-Augmented Generation (KG-RAG) extends the RAG paradigm by incorporating structured knowledge from knowledge graphs, enabling Large Language Models (LLMs) to perform more precise and explainable reasoning. While…

计算与语言 · 计算机科学 2026-02-04 Jing Ren , Bowen Li , Ziqi Xu , Xikun Zhang , Haytham Fayek , Xiaodong Li

The link prediction task on knowledge graphs without explicit negative triples in the training data motivates the usage of rank-based metrics. Here, we review existing rank-based metrics and propose desiderata for improved metrics to…

机器学习 · 计算机科学 2022-04-20 Charles Tapley Hoyt , Max Berrendorf , Mikhail Galkin , Volker Tresp , Benjamin M. Gyori

Induction of common sense knowledge about prototypical sequences of events has recently received much attention. Instead of inducing this knowledge in the form of graphs, as in much of the previous work, in our method, distributed…

机器学习 · 计算机科学 2017-02-13 Ashutosh Modi , Ivan Titov