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The widespread application of graph data in various high-risk scenarios has increased attention to graph anomaly detection (GAD). Faced with real-world graphs that often carry node descriptions in the form of raw text sequences, termed…

机器学习 · 计算机科学 2025-08-04 Yiming Xu , Xu Hua , Zhen Peng , Bin Shi , Jiarun Chen , Xingbo Fu , Song Wang , Bo Dong

Recent research on integrating Large Language Models (LLMs) with Graph Neural Networks (GNNs) typically follows two approaches: LLM-centered models, which convert graph data into tokens for LLM processing, and GNN-centered models, which use…

机器学习 · 计算机科学 2024-12-11 Haotong Yang , Xiyuan Wang , Qian Tao , Shuxian Hu , Zhouchen Lin , Muhan Zhang

Abstractive text summarization is a challenging task, and one need to design a mechanism to effectively extract salient information from the source text and then generate a summary. A parsing process of the source text contains critical…

计算与语言 · 计算机科学 2020-03-19 Haiyang Xu , Yun Wang , Kun Han , Baochang Ma , Junwen Chen , Xiangang Li

Textual-edge Graphs (TEGs), characterized by rich text annotations on edges, are increasingly significant in network science due to their ability to capture rich contextual information among entities. Existing works have proposed various…

社会与信息网络 · 计算机科学 2024-11-19 Chen Ling , Zhuofeng Li , Yuntong Hu , Zheng Zhang , Zhongyuan Liu , Shuang Zheng , Jian Pei , Liang Zhao

Graph-structured information offers rich contextual information that can enhance language models by providing structured relationships and hierarchies, leading to more expressive embeddings for various applications such as retrieval,…

Large Language Models (LLMs) have demonstrated strong capabilities in various natural language processing tasks; however, their application to graph-related problems remains limited, primarily due to scalability constraints and the absence…

机器学习 · 计算机科学 2025-05-08 Hyun Lee , Chris Yi , Maminur Islam , B. D. S. Aritra

This work shows how to improve and interpret the commonly used dual encoder model for response suggestion in dialogue. We present an attentive dual encoder model that includes an attention mechanism on top of the extracted word-level…

计算与语言 · 计算机科学 2020-03-12 Yitong Li , Dianqi Li , Sushant Prakash , Peng Wang

Non-parallel text style transfer has attracted increasing research interests in recent years. Despite successes in transferring the style based on the encoder-decoder framework, current approaches still lack the ability to preserve the…

计算与语言 · 计算机科学 2021-02-02 Yukai Shi , Sen Zhang , Chenxing Zhou , Xiaodan Liang , Xiaojun Yang , Liang Lin

Graph convolutional networks (GCNs), aiming to integrate high-order neighborhood information through stacked graph convolution layers, have demonstrated remarkable power in many network analysis tasks. However, topological limitations,…

机器学习 · 计算机科学 2021-03-08 Di Jin , Xiangchen Song , Zhizhi Yu , Ziyang Liu , Heling Zhang , Zhaomeng Cheng , Jiawei Han

The classification of short texts is a common subtask in Information Retrieval (IR). Recent advances in graph machine learning have led to interest in graph-based approaches for low resource scenarios, showing promise in such settings.…

信息检索 · 计算机科学 2024-12-18 Gregor Donabauer , Udo Kruschwitz

Most graph-to-text works are built on the encoder-decoder framework with cross-attention mechanism. Recent studies have shown that explicitly modeling the input graph structure can significantly improve the performance. However, the vanilla…

计算与语言 · 计算机科学 2022-09-16 Liang Li , Ruiying Geng , Bowen Li , Can Ma , Yinliang Yue , Binhua Li , Yongbin Li

Commonsense knowledge graph completion is a new challenge for commonsense knowledge graph construction and application. In contrast to factual knowledge graphs such as Freebase and YAGO, commonsense knowledge graphs (CSKGs; e.g.,…

计算与语言 · 计算机科学 2024-02-16 Ying Su , Tianqing Fang , Huiru Xiao , Weiqi Wang , Yangqiu Song , Tong Zhang , Lei Chen

Text-attributed graphs require models to effectively integrate both structural topology and semantic content. Recent approaches apply large language models to graphs by linearizing structures into token sequences through random walks. These…

图形学 · 计算机科学 2025-12-23 Heng Zheng , Haochen You , Zijun Liu , Zijian Zhang , Lubin Gan , Hao Zhang , Wenjun Huang , Jin Huang

Text-attributed graphs (TAGs) are prevalent on the web and research over TAGs such as citation networks, e-commerce networks and social networks has attracted considerable attention in the web community. Recently, large language models…

计算与语言 · 计算机科学 2024-03-12 Yijian Qin , Xin Wang , Ziwei Zhang , Wenwu Zhu

Large Language Models have emerged as a promising approach for graph learning due to their powerful reasoning capabilities. However, existing methods exhibit systematic performance degradation on structurally important nodes such as bridges…

Enabling large language models (LLMs) to effectively process and reason with graph-structured data remains a significant challenge despite their remarkable success in natural language tasks. Current approaches either convert graph…

人工智能 · 计算机科学 2025-09-03 Yanbiao Ji , Chang Liu , Xin Chen , Dan Luo , Mei Li , Yue Ding , Wenqing Lin , Hongtao Lu

Representation learning on text-attributed graphs (TAGs) has become a critical research problem in recent years. A typical example of a TAG is a paper citation graph, where the text of each paper serves as node attributes. Initial graph…

机器学习 · 计算机科学 2024-03-08 Xiaoxin He , Xavier Bresson , Thomas Laurent , Adam Perold , Yann LeCun , Bryan Hooi

Handling heterogeneous data in tabular datasets poses a significant challenge for deep learning models. While attention-based architectures and self-supervised learning have achieved notable success, their application to tabular data…

机器学习 · 计算机科学 2025-02-27 Anay Majee , Maria Xenochristou , Wei-Peng Chen

Pretrained transformer-based Language Models (LMs) are well-known for their ability to achieve significant improvement on text classification tasks with their powerful word embeddings, but their black-box nature, which leads to a lack of…

计算与语言 · 计算机科学 2024-12-23 Ximing Wen , Wenjuan Tan , Rosina O. Weber

We present a simple and effective approach to incorporating syntactic structure into neural attention-based encoder-decoder models for machine translation. We rely on graph-convolutional networks (GCNs), a recent class of neural networks…

计算与语言 · 计算机科学 2020-06-22 Jasmijn Bastings , Ivan Titov , Wilker Aziz , Diego Marcheggiani , Khalil Sima'an