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相关论文: Leveraging Graph Structure in Seq2Seq Models for K…

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Frequently-Asked-Question (FAQ) retrieval provides an effective procedure for responding to user's natural language based queries. Such platforms are becoming common in enterprise chatbots, product question answering, and preliminary…

信息检索 · 计算机科学 2021-08-24 Sourav Dutta , Haytham Assem , Edward Burgin

Retrosynthesis prediction is one of the fundamental challenges in organic chemistry and related fields. The goal is to find reactants molecules that can synthesize product molecules. To solve this task, we propose a new graph-to-graph…

定量方法 · 定量生物学 2022-04-20 Zaiyun Lin , Shiqiu Yin , Lei Shi , Wenbiao Zhou , YingSheng Zhang

Recent studies on AMR-to-text generation often formalize the task as a sequence-to-sequence (seq2seq) learning problem by converting an Abstract Meaning Representation (AMR) graph into a word sequence. Graph structures are further modeled…

计算与语言 · 计算机科学 2019-09-04 Jie Zhu , Junhui Li , Muhua Zhu , Longhua Qian , Min Zhang , Guodong Zhou

Forecasting over Temporal Knowledge Graphs (TKGs) which predicts future facts based on historical ones has received much attention. Recent studies have introduced Large Language Models (LLMs) for this task to enhance the models'…

计算与语言 · 计算机科学 2025-06-03 Long Bai , Zixuan Li , Xiaolong Jin , Jiafeng Guo , Xueqi Cheng , Tat-Seng Chua

Subgraph representation learning has emerged as an important problem, but it is by default approached with specialized graph neural networks on a large global graph. These models demand extensive memory and computational resources but…

机器学习 · 计算机科学 2024-05-24 Dongkwan Kim , Alice Oh

Effectively capturing graph node sequences in the form of vector embeddings is critical to many applications. We achieve this by (i) first learning vector embeddings of single graph nodes and (ii) then composing them to compactly represent…

For analysing real-world networks, graph representation learning is a popular tool. These methods, such as a graph autoencoder (GAE), typically rely on low-dimensional representations, also called embeddings, which are obtained through…

机器学习 · 计算机科学 2024-02-05 Ruikang Ouyang , Andrew Elliott , Stratis Limnios , Mihai Cucuringu , Gesine Reinert

The celebrated Seq2Seq technique and its numerous variants achieve excellent performance on many tasks such as neural machine translation, semantic parsing, and math word problem solving. However, these models either only consider input…

计算与语言 · 计算机科学 2020-10-07 Shucheng Li , Lingfei Wu , Shiwei Feng , Fangli Xu , Fengyuan Xu , Sheng Zhong

Understanding road structures is crucial for autonomous driving. Intricate road structures are often depicted using lane graphs, which include centerline curves and connections forming a Directed Acyclic Graph (DAG). Accurate extraction of…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Renyuan Peng , Xinyue Cai , Hang Xu , Jiachen Lu , Feng Wen , Wei Zhang , Li Zhang

Scene graph generation (SGG) is built on top of detected objects to predict object pairwise visual relations for describing the image content abstraction. Existing works have revealed that if the links between objects are given as prior…

计算机视觉与模式识别 · 计算机科学 2022-02-23 Yuyu Guo , Lianli Gao , Jingkuan Song , Peng Wang , Nicu Sebe , Heng Tao Shen , Xuelong Li

We present graph attention networks (GATs), novel neural network architectures that operate on graph-structured data, leveraging masked self-attentional layers to address the shortcomings of prior methods based on graph convolutions or…

The paper addresses challenges in storing and retrieving sequences in contexts like anomaly detection, behavior prediction, and genetic information analysis. Associative Knowledge Graphs (AKGs) offer a promising approach by leveraging…

人工智能 · 计算机科学 2025-09-11 Przemysław Stokłosa , Janusz A. Starzyk , Paweł Raif , Adrian Horzyk , Marcin Kowalik

Temporal graph neural networks have shown promising results in learning inductive representations by automatically extracting temporal patterns. However, previous works often rely on complex memory modules or inefficient random walk methods…

机器学习 · 计算机科学 2024-01-10 Mohammad Ali Alomrani , Mahdi Biparva , Yingxue Zhang , Mark Coates

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

Stock selection is important for investors to construct profitable portfolios. Graph neural networks (GNNs) are increasingly attracting researchers for stock prediction due to their strong ability of relation modelling and generalisation.…

统计金融 · 定量金融 2023-06-28 Yang Qiao , Yiping Xia , Xiang Li , Zheng Li , Yan Ge

In this study, we focus on the graph representation learning (a.k.a. network embedding) in attributed graphs. Different from existing embedding methods that treat the incorporation of graph structure and semantic as the simple combination…

社会与信息网络 · 计算机科学 2023-05-12 Meng Qin

Typed entailment graphs try to learn the entailment relations between predicates from text and model them as edges between predicate nodes. The construction of entailment graphs usually suffers from severe sparsity and unreliability of…

计算与语言 · 计算机科学 2022-07-18 Zhibin Chen , Yansong Feng , Dongyan Zhao

Graph Neural Networks (GNNs) have been widely used to learn representations on graphs and tackle many real-world problems from a wide range of domains. In this paper we propose wsGAT, an extension of the Graph Attention Network (GAT)…

社会与信息网络 · 计算机科学 2022-02-01 Marco Grassia , Giuseppe Mangioni

Graph or network data is ubiquitous in the real world, including social networks, information networks, traffic networks, biological networks and various technical networks. The non-Euclidean nature of graph data poses the challenge for…

社会与信息网络 · 计算机科学 2019-09-06 Junjie Huang , Huawei Shen , Liang Hou , Xueqi Cheng

Previous work approaches the SQL-to-text generation task using vanilla Seq2Seq models, which may not fully capture the inherent graph-structured information in SQL query. In this paper, we first introduce a strategy to represent the SQL…

计算与语言 · 计算机科学 2019-02-14 Kun Xu , Lingfei Wu , Zhiguo Wang , Yansong Feng , Vadim Sheinin