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Recent advancements in deep learning techniques have transformed the area of semantic text matching. However, most state-of-the-art models are designed to operate with short documents such as tweets, user reviews, comments, etc. These…

信息检索 · 计算机科学 2022-06-03 Akshita Jha , Vineeth Rakesh , Jaideep Chandrashekar , Adithya Samavedhi , Chandan K. Reddy

Representation learning models for Knowledge Graphs (KG) have proven to be effective in encoding structural information and performing reasoning over KGs. In this paper, we propose a novel pre-training-then-fine-tuning framework for…

人工智能 · 计算机科学 2021-12-09 Ganqiang Ye , Wen Zhang , Zhen Bi , Chi Man Wong , Chen Hui , Huajun Chen

The graph contrastive learning (GCL) framework has gained remarkable achievements in graph representation learning. However, similar to graph neural networks (GNNs), GCL models are susceptible to graph structural attacks. As an unsupervised…

机器学习 · 计算机科学 2025-08-25 Yulin Zhu , Xing Ai , Yevgeniy Vorobeychik , Kai Zhou

Reasoning-based approaches have demonstrated their powerful ability for the task of image-text matching. In this work, two issues are addressed for image-text matching. First, for reasoning processing, conventional approaches have no…

多媒体 · 计算机科学 2022-03-11 Ran Chen , Hanli Wang , Lei Wang , Sam Kwong

Recent progress in pretrained Transformer-based language models has shown great success in learning contextual representation of text. However, due to the quadratic self-attention complexity, most of the pretrained Transformers models can…

计算与语言 · 计算机科学 2021-10-22 Peng Xu , Xinchi Chen , Xiaofei Ma , Zhiheng Huang , Bing Xiang

In this letter, we design a federated contrastive learning (FedCL) framework aimed at supporting personalized semantic communication. Our FedCL enables collaborative training of local semantic encoders across multiple clients and a global…

信号处理 · 电气工程与系统科学 2024-06-14 Yining Wang , Wanli Ni , Wenqiang Yi , Xiaodong Xu , Ping Zhang , Arumugam Nallanathan

Think about how human handles complex reading tasks: marking key points, inferring their relationships, and structuring information to guide understanding and responses. Likewise, can a large language model benefit from text structure to…

Learning similarity metrics for glyphs and writing systems faces a fundamental challenge: while individual graphemes within invented alphabets can be reliably labeled, the historical relationships between different scripts remain uncertain…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Claire Roman , Philippe Meyer

In document classification, graph-based models effectively capture document structure, overcoming sequence length limitations and enhancing contextual understanding. However, most existing graph document representations rely on heuristics,…

计算与语言 · 计算机科学 2025-08-05 Margarita Bugueño , Gerard de Melo

Inspired by the great success of language model (LM)-based pre-training, recent studies in visual document understanding have explored LM-based pre-training methods for modeling text within document images. Among them, pre-training that…

计算机视觉与模式识别 · 计算机科学 2023-09-25 Daehee Kim , Yoonsik Kim , DongHyun Kim , Yumin Lim , Geewook Kim , Taeho Kil

Abstract syntax trees (ASTs) play a crucial role in source code representation. However, due to the large number of nodes in an AST and the typically deep AST hierarchy, it is challenging to learn the hierarchical structure of an AST…

软件工程 · 计算机科学 2022-03-29 Xiao Wang , Qiong Wu , Hongyu Zhang , Chen Lyu , Xue Jiang , Zhuoran Zheng , Lei Lyu , Songlin Hu

This paper presents GeoContrastNet, a language-agnostic framework to structured document understanding (DU) by integrating a contrastive learning objective with graph attention networks (GATs), emphasizing the significant role of geometric…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Nil Biescas , Carlos Boned , Josep Lladós , Sanket Biswas

Fact checking aims to predict claim veracity by reasoning over multiple evidence pieces. It usually involves evidence retrieval and veracity reasoning. In this paper, we focus on the latter, reasoning over unstructured text and structured…

计算与语言 · 计算机科学 2024-02-21 Haisong Gong , Weizhi Xu , Shu wu , Qiang Liu , Liang Wang

Contrastive learning has emerged as a powerful tool for graph representation learning. However, most contrastive learning methods learn features of graphs with fixed coarse-grained scale, which might underestimate either local or global…

机器学习 · 计算机科学 2022-10-24 Jun Wang , Weixun Li , Changyu Hou , Xin Tang , Yixuan Qiao , Rui Fang , Pengyong Li , Peng Gao , Guotong Xie

Hierarchical topic modeling aims to discover latent topics from a corpus and organize them into a hierarchy to understand documents with desirable semantic granularity. However, existing work struggles with producing topic hierarchies of…

计算与语言 · 计算机科学 2024-02-02 Xiaobao Wu , Fengjun Pan , Thong Nguyen , Yichao Feng , Chaoqun Liu , Cong-Duy Nguyen , Anh Tuan Luu

Recently, some contrastive learning methods have been proposed to simultaneously learn representations and clustering assignments, achieving significant improvements. However, these methods do not take the category information and…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Huasong Zhong , Jianlong Wu , Chong Chen , Jianqiang Huang , Minghua Deng , Liqiang Nie , Zhouchen Lin , Xian-Sheng Hua

Recently, great success has been made in learning visual representations from text supervision, facilitating the emergence of text-supervised semantic segmentation. However, existing works focus on pixel grouping and cross-modal semantic…

计算机视觉与模式识别 · 计算机科学 2023-02-22 Pengzhen Ren , Changlin Li , Hang Xu , Yi Zhu , Guangrun Wang , Jianzhuang Liu , Xiaojun Chang , Xiaodan Liang

The goal of text-to-image synthesis is to generate a visually realistic image that matches a given text description. In practice, the captions annotated by humans for the same image have large variance in terms of contents and the choice of…

机器学习 · 计算机科学 2021-11-30 Hui Ye , Xiulong Yang , Martin Takac , Rajshekhar Sunderraman , Shihao Ji

Although transformer-based models have shown strong performance in word- and sentence-level tasks, effectively representing long documents, especially in fields like law and medicine, remains difficult. Sparse attention mechanisms can…

计算与语言 · 计算机科学 2026-01-01 Waheed Ahmed Abro , Zied Bouraoui

In this paper, we present StrucTexTv2, an effective document image pre-training framework, by performing masked visual-textual prediction. It consists of two self-supervised pre-training tasks: masked image modeling and masked language…

计算机视觉与模式识别 · 计算机科学 2023-03-02 Yuechen Yu , Yulin Li , Chengquan Zhang , Xiaoqiang Zhang , Zengyuan Guo , Xiameng Qin , Kun Yao , Junyu Han , Errui Ding , Jingdong Wang