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Relation extraction has been widely studied to extract new relational facts from open corpus. Previous relation extraction methods are faced with the problem of wrong labels and noisy data, which substantially decrease the performance of…

信息检索 · 计算机科学 2018-05-01 Dongdong Yang , Senzhang Wang , Zhoujun Li

Deep learning has recently attracted significant attention in the field of hyperspectral images (HSIs) classification. However, the construction of an efficient deep neural network (DNN) mostly relies on a large number of labeled samples…

计算机视觉与模式识别 · 计算机科学 2019-05-01 Cheng Deng , Yumeng Xue , Xianglong Liu , Chao Li , Dacheng Tao

Recent advances in named entity recognition (NER) have pushed the boundary of the task to incorporate visual signals, leading to many variants, including multi-modal NER (MNER) or grounded MNER (GMNER). A key challenge to these tasks is…

计算与语言 · 计算机科学 2024-04-03 Hyunjong Ok , Taeho Kil , Sukmin Seo , Jaeho Lee

Training a Convolutional Neural Network (CNN) for semantic segmentation typically requires to collect a large amount of accurate pixel-level annotations, a hard and expensive task. In contrast, simple image tags are easier to gather. With…

计算机视觉与模式识别 · 计算机科学 2019-02-25 Carolina Redondo-Cabrera , Marcos Baptista-Ríos , Roberto J. López-Sastre

Relation extraction is essentially a text classification problem, which can be tackled by fine-tuning a pre-trained language model (LM). However, a key challenge arises from the fact that relation extraction cannot straightforwardly be…

计算与语言 · 计算机科学 2024-10-03 Frank Mtumbuka , Steven Schockaert

In this paper we study different types of Recurrent Neural Networks (RNN) for sequence labeling tasks. We propose two new variants of RNNs integrating improvements for sequence labeling, and we compare them to the more traditional Elman and…

计算与语言 · 计算机科学 2016-06-09 Marco Dinarelli , Isabelle Tellier

Named entity recognition (NER) is a foundational technology for information extraction. This paper presents a flexible NER framework compatible with different languages and domains. Inspired by the idea of distant supervision (DS), this…

计算与语言 · 计算机科学 2019-08-15 Hongyin Zhu , Wenpeng Hu , Yi Zeng

Semantic segmentation of remote sensing images is essential for various applications, including vegetation monitoring, disaster management, and urban planning. Previous studies have demonstrated that the self-attention mechanism (SA) is an…

计算机视觉与模式识别 · 计算机科学 2025-01-15 Wei Long , Yongjun Zhang , Zhongwei Cui , Yujie Xu , Xuexue Zhang

Extracting relations is critical for knowledge base completion and construction in which distant supervised methods are widely used to extract relational facts automatically with the existing knowledge bases. However, the automatically…

计算与语言 · 计算机科学 2018-11-09 Tianyi Liu , Xinsong Zhang , Wanhao Zhou , Weijia Jia

Extraction of Application Programming Interfaces (APIs) and their semantic relations from unstructured text (e.g., Stack Overflow) is a fundamental work for software engineering tasks (e.g., API recommendation). However, existing approaches…

软件工程 · 计算机科学 2023-01-11 Qing Huang , Yanbang Sun , Zhenchang Xing , Min Yu , Xiwei Xu , Qinghua Lu

Disease name recognition and normalization, which is generally called biomedical entity linking, is a fundamental process in biomedical text mining. Recently, neural joint learning of both tasks has been proposed to utilize the mutual…

计算与语言 · 计算机科学 2021-04-22 Shogo Ujiie , Hayate Iso , Shuntaro Yada , Shoko Wakamiya , Eiji Aramaki

In the last years, the consolidation of deep neural network architectures for information extraction in document images has brought big improvements in the performance of each of the tasks involved in this process, consisting of text…

计算机视觉与模式识别 · 计算机科学 2020-05-05 Manuel Carbonell , Alicia Fornés , Mauricio Villegas , Josep Lladós

Weakly supervised semantic segmentation (WSSS) using only image-level labels can greatly reduce the annotation cost and therefore has attracted considerable research interest. However, its performance is still inferior to the fully…

计算机视觉与模式识别 · 计算机科学 2020-01-14 Qi Yao , Xiaojin Gong

Multi-label image classification is a fundamental but challenging task in computer vision. Great progress has been achieved by exploiting semantic relations between labels in recent years. However, conventional approaches are unable to…

计算机视觉与模式识别 · 计算机科学 2017-04-03 Feng Zhu , Hongsheng Li , Wanli Ouyang , Nenghai Yu , Xiaogang Wang

The label annotations for chest X-ray image rib segmentation are time consuming and laborious, and the labeling quality heavily relies on medical knowledge of annotators. To reduce the dependency on annotated data, existing works often…

图像与视频处理 · 电气工程与系统科学 2024-07-24 Lili Huang , Dexin Ma , Xiaowei Zhao , Chenglong Li , Haifeng Zhao , Jin Tang , Chuanfu Li

Tabular documents such as CSV and Excel files are widely used in enterprise data pipelines, yet existing chunking strategies for retrieval-augmented generation (RAG) are primarily designed for unstructured text and do not account for…

计算与语言 · 计算机科学 2026-05-04 Pooja Guttal , Varun Magotra , Vasudeva Mahavishnu , Natasha Chanto , Sidharth Sivaprasad , Manas Gaur

In computational biology, biological entities such as genes or proteins are usually annotated with terms extracted from Gene Ontology (GO). The functional similarity among terms of an ontology is evaluated by using Semantic Similarity…

计算工程、金融与科学 · 计算机科学 2014-12-24 Mario Cannataro , Pietro Hiram Guzzi , Marianna Milano , Pierangelo Veltri

While named entity recognition (NER) is a key task in natural language processing, most approaches only target flat entities, ignoring nested structures which are common in many scenarios. Most existing nested NER methods traverse all…

计算与语言 · 计算机科学 2021-07-21 Huiqiang Jiang , Guoxin Wang , Weile Chen , Chengxi Zhang , Börje F. Karlsson

We introduce a novel graph-based framework for alleviating key challenges in distantly-supervised relation extraction and demonstrate its effectiveness in the challenging and important domain of biomedical data. Specifically, we propose a…

机器学习 · 计算机科学 2024-04-08 Hao Zhang , Yang Liu , Xiaoyan Liu , Tianming Liang , Gaurav Sharma , Liang Xue , Maozu Guo

We present a novel end-to-end neural model to extract entities and relations between them. Our recurrent neural network based model captures both word sequence and dependency tree substructure information by stacking bidirectional…

计算与语言 · 计算机科学 2016-06-09 Makoto Miwa , Mohit Bansal