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Entity linking involves aligning textual mentions of named entities to their corresponding entries in a knowledge base. Entity linking systems often exploit relations between textual mentions in a document (e.g., coreference) to decide if…

计算与语言 · 计算机科学 2018-05-01 Phong Le , Ivan Titov

Teaching machines to recognize a new category based on few training samples especially only one remains challenging owing to the incomprehensive understanding of the novel category caused by the lack of data. However, human can learn new…

计算机视觉与模式识别 · 计算机科学 2021-11-09 Fengyuan Yang , Ruiping Wang , Xilin Chen

Distant supervision uses triple facts in knowledge graphs to label a corpus for relation extraction, leading to wrong labeling and long-tail problems. Some works use the hierarchy of relations for knowledge transfer to long-tail relations.…

计算与语言 · 计算机科学 2021-09-21 Yang Li , Guodong Long , Tao Shen , Jing Jiang

A type description is a succinct noun compound which helps human and machines to quickly grasp the informative and distinctive information of an entity. Entities in most knowledge graphs (KGs) still lack such descriptions, thus calling for…

计算与语言 · 计算机科学 2019-10-09 Jiangjie Chen , Ao Wang , Haiyun Jiang , Suo Feng , Chenguang Li , Yanghua Xiao

Much research effort has been put to multilingual knowledge graph (KG) embedding methods to address the entity alignment task, which seeks to match entities in different languagespecific KGs that refer to the same real-world object. Such…

计算与语言 · 计算机科学 2021-01-27 Muhao Chen , Weijia Shi , Ben Zhou , Dan Roth

Named entity recognition (NER) models generally perform poorly when large training datasets are unavailable for low-resource domains. Recently, pre-training a large-scale language model has become a promising direction for coping with the…

计算与语言 · 计算机科学 2021-12-02 Zihan Liu , Feijun Jiang , Yuxiang Hu , Chen Shi , Pascale Fung

Here we present the training and evaluation of NanoNER, a Named Entity Recognition (NER) model for Nanobiology. NER consists in the identification of specific entities in spans of unstructured texts and is often a primary task in Natural…

信息检索 · 计算机科学 2024-02-07 Martin Lentschat , Cyril Labbé , Ran Cheng

Prompt-based fine-tuning has become an essential method for eliciting information encoded in pre-trained language models for a variety of tasks, including text classification. For multi-class classification tasks, prompt-based fine-tuning…

计算与语言 · 计算机科学 2024-10-04 Zhiwen You , Kanyao Han , Haotian Zhu , Bertram Ludäscher , Jana Diesner

Topic models aim to reveal latent structures within a corpus of text, typically through the use of term-frequency statistics over bag-of-words representations from documents. In recent years, conceptual entities -- interpretable,…

计算与语言 · 计算机科学 2024-08-27 Manuel V. Loureiro , Steven Derby , Tri Kurniawan Wijaya

The Entity Set Expansion (ESE) task aims to expand a handful of seed entities with new entities belonging to the same semantic class. Conventional ESE methods are based on mono-modality (i.e., literal modality), which struggle to deal with…

计算与语言 · 计算机科学 2023-07-28 Yangning Li , Tingwei Lu , Yinghui Li , Tianyu Yu , Shulin Huang , Hai-Tao Zheng , Rui Zhang , Jun Yuan

Named Entity Recognition (NER) is a challenging and widely studied task that involves detecting and typing entities in text. So far,NER still approaches entity typing as a task of classification into universal classes (e.g. date, person, or…

计算与语言 · 计算机科学 2023-02-22 Tristan Luiggi , Laure Soulier , Vincent Guigue , Siwar Jendoubi , Aurélien Baelde

The entity type information in Knowledge Graphs (KGs) such as DBpedia, Freebase, etc. is often incomplete due to automated generation or human curation. Entity typing is the task of assigning or inferring the semantic type of an entity in a…

计算与语言 · 计算机科学 2022-08-01 Russa Biswas , Jan Portisch , Heiko Paulheim , Harald Sack , Mehwish Alam

Data of sequential nature arise in many application domains in forms of, e.g. textual data, DNA sequences, and software execution traces. Different research disciplines have developed methods to learn sequence models from such datasets: (i)…

机器学习 · 统计学 2018-11-02 Niek Tax , Irene Teinemaa , Sebastiaan J. van Zelst

Existing text-guided image manipulation methods aim to modify the appearance of the image or to edit a few objects in a virtual or simple scenario, which is far from practical applications. In this work, we study a novel task on text-guided…

计算机视觉与模式识别 · 计算机科学 2023-02-23 Yikai Wang , Jianan Wang , Guansong Lu , Hang Xu , Zhenguo Li , Wei Zhang , Yanwei Fu

This paper is concerned with self-supervised learning for small models. The problem is motivated by our empirical studies that while the widely used contrastive self-supervised learning method has shown great progress on large model…

计算机视觉与模式识别 · 计算机科学 2021-04-19 Zhiyuan Fang , Jianfeng Wang , Lijuan Wang , Lei Zhang , Yezhou Yang , Zicheng Liu

Knowledge graph entity typing aims to infer entities' missing types in knowledge graphs which is an important but under-explored issue. This paper proposes a novel method for this task by utilizing entities' contextual information.…

计算与语言 · 计算机科学 2021-09-17 Weiran Pan , Wei Wei , Xian-Ling Mao

Named Entity Recognition (NER) is a critical task in natural language processing, yet it remains particularly challenging for discontinuous entities. The primary difficulty lies in text segmentation, as traditional methods often missegment…

计算与语言 · 计算机科学 2026-01-01 Wen-Fang Su , Hsiao-Wei Chou , Wen-Yang Lin

Practitioners from many disciplines (e.g., political science) use expert-crafted taxonomies to make sense of large, unlabeled corpora. In this work, we study Seeded Hierarchical Clustering (SHC): the task of automatically fitting unlabeled…

计算与语言 · 计算机科学 2022-05-25 Anish Saha , Amith Ananthram , Emily Allaway , Heng Ji , Kathleen McKeown

Most sentence embedding techniques heavily rely on expensive human-annotated sentence pairs as the supervised signals. Despite the use of large-scale unlabeled data, the performance of unsupervised methods typically lags far behind that of…

计算与语言 · 计算机科学 2022-11-01 Yiming Chen , Yan Zhang , Bin Wang , Zuozhu Liu , Haizhou Li

Entity Linking is one of the essential tasks of information extraction and natural language understanding. Entity linking mainly consists of two tasks: recognition and disambiguation of named entities. Most studies address these two tasks…

计算与语言 · 计算机科学 2021-02-02 Majid Asgari-Bidhendi , Behrooz Janfada , Amir Havangi , Sayyed Ali Hossayni , Behrouz Minaei-Bidgoli