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This work presents a two-stage neural architecture for learning and refining structural correspondences between graphs. First, we use localized node embeddings computed by a graph neural network to obtain an initial ranking of soft…

机器学习 · 计算机科学 2020-01-28 Matthias Fey , Jan E. Lenssen , Christopher Morris , Jonathan Masci , Nils M. Kriege

Graph matching, also known as network alignment, refers to finding a bijection between the vertex sets of two given graphs so as to maximally align their edges. This fundamental computational problem arises frequently in multiple fields…

数据结构与算法 · 计算机科学 2021-08-10 Cheng Mao , Mark Rudelson , Konstantin Tikhomirov

Nonnegative Matrix Factorization (NMF) has been continuously evolving in several areas like pattern recognition and information retrieval methods. It factorizes a matrix into a product of 2 low-rank non-negative matrices that will define…

机器学习 · 计算机科学 2013-04-04 Jing-Yan Wang , Mustafa AbdulJabbar

Despite the strong abilities, large language models (LLMs) still suffer from hallucinations and reliance on outdated knowledge, raising concerns in knowledge-intensive tasks. Graph-based retrieval-augmented generation (GRAG) enriches LLMs…

Graph Neural Networks (GNNs) have been widely used for the representation learning of various structured graph data. While promising, most existing GNNs oversimplified the complexity and diversity of the edges in the graph, and thus…

机器学习 · 计算机科学 2021-10-07 Hao Peng , Ruitong Zhang , Yingtong Dou , Renyu Yang , Jingyi Zhang , Philip S. Yu

Graph Neural Networks (GNNs) are effective tools for graph representation learning. Most GNNs rely on a recursive neighborhood aggregation scheme, named message passing, thereby their theoretical expressive power is limited to the…

机器学习 · 计算机科学 2023-09-19 Dingmin Wang , Shengchao Liu , Hanchen Wang , Bernardo Cuenca Grau , Linfeng Song , Jian Tang , Song Le , Qi Liu

Graph neural networks (GNNs) have demonstrated promising performance across various chemistry-related tasks. However, conventional graphs only model the pairwise connectivity in molecules, failing to adequately represent higher-order…

化学物理 · 物理学 2023-12-22 Junwu Chen , Philippe Schwaller

Graph Retrieval has witnessed continued interest and progress in the past few years. In thisreport, we focus on neural network based approaches for Graph matching and retrieving similargraphs from a corpus of graphs. We explore methods…

信息检索 · 计算机科学 2022-04-25 Chitrank Gupta , Yash Jain

Graph-level clustering is a fundamental task of data mining, aiming at dividing unlabeled graphs into distinct groups. However, existing deep methods that are limited by pooling have difficulty extracting diverse and complex graph structure…

机器学习 · 计算机科学 2025-04-03 Renda Han , Guangzhen Yao , Wenxin Zhang , Yu Li , Wen Xin , Huajie Lei , Mengfei Li , Zeyu Zhang , Chengze Du , Yahe Tian

The limited availability of annotations in small molecule datasets presents a challenge to machine learning models. To address this, one common strategy is to collaborate with additional auxiliary datasets. However, having more data does…

生物大分子 · 定量生物学 2023-11-10 Tinglin Huang , Ziniu Hu , Rex Ying

The recent success of graph neural networks has significantly boosted molecular property prediction, advancing activities such as drug discovery. The existing deep neural network methods usually require large training dataset for each…

机器学习 · 计算机科学 2021-02-17 Zhichun Guo , Chuxu Zhang , Wenhao Yu , John Herr , Olaf Wiest , Meng Jiang , Nitesh V. Chawla

Autoregressive models (ARMs) have become the workhorse for sequence generation tasks, since many problems can be modeled as next-token prediction. While there appears to be a natural ordering for text (i.e., left-to-right), for many data…

机器学习 · 计算机科学 2025-07-15 Zhe Wang , Jiaxin Shi , Nicolas Heess , Arthur Gretton , Michalis K. Titsias

Graph-based algorithms have shown great empirical potential for the approximate nearest neighbor (ANN) search problem. Currently, graph-based ANN search algorithms are designed mainly using heuristics, whereas theoretical analysis of such…

信息检索 · 计算机科学 2021-07-29 Dantong Zhu , Minjia Zhang

Graph generation poses a significant challenge as it involves predicting a complete graph with multiple nodes and edges based on simply a given label. This task also carries fundamental importance to numerous real-world applications,…

机器学习 · 计算机科学 2024-02-21 Xiandong Zou , Xiangyu Zhao , Pietro Liò , Yiren Zhao

Building upon the standard graph-based Retrieval-Augmented Generation (RAG), the introduction of heterogeneous graphs and hypergraphs aims to enrich retrieval and generation by leveraging the relationships between multiple entities through…

计算与语言 · 计算机科学 2025-09-03 Xuecheng Zou , Ke Liu , Bingbing Wang , Huafei Deng , Li Zhang , Yu Tang

Graph neural networks are widely used in machine learning applied to chemistry, and in particular for material science discovery. For crystalline materials, however, generating graph-based representation from geometrical information for…

材料科学 · 物理学 2023-07-12 Astrid Klipfel , Yaël Frégier , Adlane Sayede , Zied Bouraoui

Recent advances in molecular representation learning have produced highly effective encodings of molecules for numerous cheminformatics and bioinformatics tasks. However, extracting general chemical insight while balancing predictive…

机器学习 · 计算机科学 2025-09-26 Rahul Khorana

Graph matching can be formalized as a combinatorial optimization problem, where there are corresponding relationships between pairs of nodes that can be represented as edges. This problem becomes challenging when there are potential…

计算机视觉与模式识别 · 计算机科学 2023-01-06 Dongdong Chen , Yuxing Dai , Lichi Zhang , Zhihong Zhang

Designing molecular structures with desired chemical properties is an essential task in drug discovery and material design. However, finding molecules with the optimized desired properties is still a challenging task due to combinatorial…

生物大分子 · 定量生物学 2023-02-02 Masatsugu Yamada , Mahito Sugiyama

Retrosynthetic planning, which aims to find a reaction pathway to synthesize a target molecule, plays an important role in chemistry and drug discovery. This task is usually modeled as a search problem. Recently, data-driven methods have…

人工智能 · 计算机科学 2022-06-24 Shufang Xie , Rui Yan , Peng Han , Yingce Xia , Lijun Wu , Chenjuan Guo , Bin Yang , Tao Qin