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Various approaches have been proposed for providing efficient computational approaches for abstract argumentation. Among them, neural networks have permitted to solve various decision problems, notably related to arguments (credulous or…

人工智能 · 计算机科学 2024-09-26 Paul Cibier , Jean-Guy Mailly

Previous research on relation classification has verified the effectiveness of using dependency shortest paths or subtrees. In this paper, we further explore how to make full use of the combination of these dependency information. We first…

计算与语言 · 计算机科学 2015-07-17 Yang Liu , Furu Wei , Sujian Li , Heng Ji , Ming Zhou , Houfeng Wang

Many natural language processing tasks solely rely on sparse dependencies between a few tokens in a sentence. Soft attention mechanisms show promising performance in modeling local/global dependencies by soft probabilities between every two…

计算与语言 · 计算机科学 2018-07-06 Tao Shen , Tianyi Zhou , Guodong Long , Jing Jiang , Sen Wang , Chengqi Zhang

Aspect-based sentiment analysis (ABSA) mainly involves three subtasks: aspect term extraction, opinion term extraction, and aspect-level sentiment classification, which are typically handled in a separate or joint manner. However, previous…

计算与语言 · 计算机科学 2021-09-03 Yunlong Liang , Fandong Meng , Jinchao Zhang , Yufeng Chen , Jinan Xu , Jie Zhou

Aspect-based sentiment analysis (ABSA) aims at extracting opinionated aspect terms in review texts and determining their sentiment polarities, which is widely studied in both academia and industry. As a fine-grained classification task, the…

人工智能 · 计算机科学 2023-08-17 Anguo Dong , Cuiyun Gao , Yan Jia , Qing Liao , Xuan Wang , Lei Wang , Jing Xiao

Effective question classification is crucial for AI-driven educational tools, enabling adaptive learning systems to categorize questions by skill area, difficulty level, and competence. It not only supports educational diagnostics and…

计算与语言 · 计算机科学 2025-06-30 Junyoung Lee , Ninad Dixit , Kaustav Chakrabarti , S. Supraja

Recent work on aspect-level sentiment classification has demonstrated the efficacy of incorporating syntactic structures such as dependency trees with graph neural networks(GNN), but these approaches are usually vulnerable to parsing…

计算与语言 · 计算机科学 2021-03-23 Xiaochen Hou , Peng Qi , Guangtao Wang , Rex Ying , Jing Huang , Xiaodong He , Bowen Zhou

We propose a novel technique to enhance Knowledge Graph Reasoning by combining Graph Convolution Neural Network (GCN) with the Attention Mechanism. This approach utilizes the Attention Mechanism to examine the relationships between entities…

信息检索 · 计算机科学 2025-03-24 Meera Gupta , Ravi Khanna , Divya Choudhary , Nandini Rao

Aspect Sentiment Triplet Extraction (ASTE) is an emerging task to extract a given sentence's triplets, which consist of aspects, opinions, and sentiments. Recent studies tend to address this task with a table-filling paradigm, wherein word…

计算与语言 · 计算机科学 2023-12-27 Kun Peng , Lei Jiang , Hao Peng , Rui Liu , Zhengtao Yu , Jiaqian Ren , Zhifeng Hao , Philip S. Yu

The goal of sentence and document modeling is to accurately represent the meaning of sentences and documents for various Natural Language Processing tasks. In this work, we present Dependency Sensitive Convolutional Neural Networks (DSCNN)…

计算与语言 · 计算机科学 2016-11-09 Rui Zhang , Honglak Lee , Dragomir Radev

Recent progress in aspect-level sentiment classification has been propelled by the incorporation of graph neural networks (GNNs) leveraging syntactic structures, particularly dependency trees. Nevertheless, the performance of these models…

计算与语言 · 计算机科学 2023-12-08 Jane Sunny , Tom Padraig , Roggie Terry , Woods Ali

As one of the important tools for spatial feature extraction, graph convolution has been applied in a wide range of fields such as traffic flow prediction. However, current popular works of graph convolution cannot guarantee spatio-temporal…

机器学习 · 计算机科学 2023-09-15 Tianpu Zhang , Weilong Ding , Mengda Xing

Discriminative feature representation of person image is important for person re-identification (Re-ID) task. Recently, attributes have been demonstrated beneficially in guiding for learning more discriminative feature representations for…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Bo Jiang , Xixi Wang , Jin Tang

Event detection (ED), a key subtask of information extraction, aims to recognize instances of specific event types in text. Previous studies on the task have verified the effectiveness of integrating syntactic dependency into graph…

计算与语言 · 计算机科学 2020-09-30 Shiyao Cui , Bowen Yu , Tingwen Liu , Zhenyu Zhang , Xuebin Wang , Jinqiao Shi

Recent works show that the graph structure of sentences, generated from dependency parsers, has potential for improving event detection. However, they often only leverage the edges (dependencies) between words, and discard the dependency…

计算与语言 · 计算机科学 2021-05-06 Sanghamitra Dutta , Liang Ma , Tanay Kumar Saha , Di Lu , Joel Tetreault , Alejandro Jaimes

Aspect-based Sentiment Analysis (ABSA) is crucial for understanding sentiment nuances in text, especially across diverse languages and cultures. This paper introduces a novel Deep Convolutional Neural Network (CNN)-based model tailored for…

计算与语言 · 计算机科学 2025-11-10 Umar Ibrahim , Abubakar Yakubu Zandam , Fatima Muhammad Adam , Aminu Musa

Explainability is crucial for probing graph neural networks (GNNs), answering questions like "Why the GNN model makes a certain prediction?". Feature attribution is a prevalent technique of highlighting the explanatory subgraph in the input…

机器学习 · 计算机科学 2022-04-28 Xiang Wang , Yingxin Wu , An Zhang , Fuli Feng , Xiangnan He , Tat-Seng Chua

Recently, Graph Convolutional Networks (GCNs) have proven to be a powerful mean for Computer Aided Diagnosis (CADx). This approach requires building a population graph to aggregate structural information, where the graph adjacency matrix…

人工智能 · 计算机科学 2021-06-17 Hao Chen , Fuzhen Zhuang , Li Xiao , Ling Ma , Haiyan Liu , Ruifang Zhang , Huiqin Jiang , Qing He

The combination of the traditional convolutional network (i.e., an auto-encoder) and the graph convolutional network has attracted much attention in clustering, in which the auto-encoder extracts the node attribute feature and the graph…

计算机视觉与模式识别 · 计算机科学 2021-08-13 Zhihao Peng , Hui Liu , Yuheng Jia , Junhui Hou

Most existing re-identification methods focus on learning robust and discriminative features with deep convolution networks. However, many of them consider content similarity separately and fail to utilize the context information of the…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Deyi Ji , Haoran Wang , Hanzhe Hu , Weihao Gan , Wei Wu , Junjie Yan