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Although reinforcement learning has been successfully applied in many domains in recent years, we still lack agents that can systematically generalize. While relational inductive biases that fit a task can improve generalization of RL…

机器学习 · 计算机科学 2021-02-09 Zhengyao Jiang , Pasquale Minervini , Minqi Jiang , Tim Rocktaschel

We present Language-binding Object Graph Network, the first neural reasoning method with dynamic relational structures across both visual and textual domains with applications in visual question answering. Relaxing the common assumption…

计算机视觉与模式识别 · 计算机科学 2021-02-19 Thao Minh Le , Vuong Le , Svetha Venkatesh , Truyen Tran

Knowledge graph embedding methods learn embeddings of entities and relations in a low dimensional space which can be used for various downstream machine learning tasks such as link prediction and entity matching. Various graph convolutional…

机器学习 · 计算机科学 2021-02-16 Nasrullah Sheikh , Xiao Qin , Berthold Reinwald , Christoph Miksovic , Thomas Gschwind , Paolo Scotton

One common belief is that with complex models and pre-training on large-scale datasets, transformer-based methods for referring expression comprehension (REC) perform much better than existing graph-based methods. We observe that since most…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Jingcheng Ke , Dele Wang , Jun-Cheng Chen , I-Hong Jhuo , Chia-Wen Lin , Yen-Yu Lin

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 graphs represent real-world entities and their relations in a semantically-rich structure supported by ontologies. Exploring this data with machine learning methods often relies on knowledge graph embeddings, which produce latent…

机器学习 · 计算机科学 2023-06-23 Rita T. Sousa , Sara Silva , Catia Pesquita

Knowledge graph embedding (KGE) models perform well on link prediction but struggle with unseen entities, relations, and especially literals, limiting their use in dynamic, heterogeneous graphs. In contrast, pretrained large language models…

计算与语言 · 计算机科学 2026-04-15 Alkid Baci , Luke Friedrichs , Caglar Demir , N'Dah Jean Kouagou , Axel-Cyrille Ngonga Ngomo

Retrieval-Augmented Generation (RAG) has significantly mitigated the hallucinations of Large Language Models (LLMs) by grounding the generation with external knowledge. Recent extensions of RAG to graph-based retrieval offer a promising…

Relational Deep Learning (RDL) is a promising approach for building state-of-the-art predictive models on multi-table relational data by representing it as a heterogeneous temporal graph. However, commonly used Graph Neural Network models…

Large language models (LLMs) often struggle with knowledge-intensive tasks due to hallucinations and outdated parametric knowledge. While Retrieval-Augmented Generation (RAG) addresses this by integrating external corpora, its effectiveness…

计算与语言 · 计算机科学 2026-02-04 Su Dong , Qinggang Zhang , Yilin Xiao , Shengyuan Chen , Chuang Zhou , Xiao Huang

Knowledge graphs (KGs) composed of users, objects, and tags are widely used in web applications ranging from E-commerce, social media sites to news portals. This paper concentrates on an attractive application which aims to predict the…

信息检索 · 计算机科学 2020-07-17 Chenyang Li , Xu Chen , Ya Zhang , Siheng Chen , Dan Lv , Yanfeng Wang

Embedding-based methods for reasoning in knowledge hypergraphs learn a representation for each entity and relation. Current methods do not capture the procedural rules underlying the relations in the graph. We propose a simple…

机器学习 · 计算机科学 2021-02-19 Bahare Fatemi , Perouz Taslakian , David Vazquez , David Poole

Question answering over visually rich documents (VRDs) requires reasoning not only over isolated content but also over documents' structural organization and cross-page dependencies. However, conventional retrieval-augmented generation…

Reasoning is a fundamental problem for computers and deeply studied in Artificial Intelligence. In this paper, we specifically focus on answering multi-hop logical queries on Knowledge Graphs (KGs). This is a complicated task because, in…

人工智能 · 计算机科学 2022-09-30 Alfonso Amayuelas , Shuai Zhang , Susie Xi Rao , Ce Zhang

Continual Graph Learning (CGL), which aims to accommodate new tasks over evolving graph data without forgetting prior knowledge, is garnering significant research interest. Mainstream solutions adopt the memory replay-based idea, ie,…

机器学习 · 计算机科学 2025-02-11 Qi Wang , Tianfei Zhou , Ye Yuan , Rui Mao

Knowledge graph embedding aims at modeling entities and relations with low-dimensional vectors. Most previous methods require that all entities should be seen during training, which is unpractical for real-world knowledge graphs with new…

人工智能 · 计算机科学 2020-10-06 Peifeng Wang , Jialong Han , Chenliang Li , Rong Pan

Representation learning on text-attributed graphs (TAGs) has attracted significant interest due to its wide-ranging real-world applications, particularly through Graph Neural Networks (GNNs). Traditional GNN methods focus on encoding the…

机器学习 · 计算机科学 2024-10-07 Xingyu Ji , Jiale Liu , Lu Li , Maojun Wang , Zeyu Zhang

Graph Neural Networks (GNNs) have led to state-of-the-art performance on a variety of machine learning tasks such as recommendation, node classification and link prediction. Graph neural network models generate node embeddings by merging…

机器学习 · 计算机科学 2020-11-04 Yunpeng Weng , Xu Chen , Liang Chen , Wei Liu

Retrieval-augmented generation (RAG) systems have been widely adopted in contemporary large language models (LLMs) due to their ability to improve generation quality while reducing the required input context length. In this work, we focus…

计算与语言 · 计算机科学 2026-04-07 Tianyi Zhang , Andreas Marfurt

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…

信息检索 · 计算机科学 2021-09-16 Xiao Sha , Zhu Sun , Jie Zhang