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Entity extraction is critical in the intelligent advancement across diverse domains. Nevertheless, a challenge to its effectiveness arises from the data imbalance. This paper proposes a novel approach by viewing the issue through the…

计算与语言 · 计算机科学 2023-09-04 Zhenhua Wang , Ming Ren , Dong Gao , Zhuang Li

Entity matching (EM) is a critical step in entity resolution (ER). Recently, entity matching based on large language models (LLMs) has shown great promise. However, current LLM-based entity matching approaches typically follow a binary…

计算与语言 · 计算机科学 2024-12-13 Tianshu Wang , Xiaoyang Chen , Hongyu Lin , Xuanang Chen , Xianpei Han , Hao Wang , Zhenyu Zeng , Le Sun

Ultra-fine entity typing (UFET) aims to predict a wide range of type phrases that correctly describe the categories of a given entity mention in a sentence. Most recent works infer each entity type independently, ignoring the correlations…

计算与语言 · 计算机科学 2022-12-06 Chengyue Jiang , Yong Jiang , Weiqi Wu , Pengjun Xie , Kewei Tu

Word segmentation plays a pivotal role in improving any Arabic NLP application. Therefore, a lot of research has been spent in improving its accuracy. Off-the-shelf tools, however, are: i) complicated to use and ii) domain/dialect…

计算与语言 · 计算机科学 2017-09-05 Hassan Sajjad , Fahim Dalvi , Nadir Durrani , Ahmed Abdelali , Yonatan Belinkov , Stephan Vogel

Metadata extraction is essential for cataloging and preserving datasets, enabling effective research discovery and reproducibility, especially given the current exponential growth in scientific research. While Masader (Alyafeai et al.,2021)…

计算与语言 · 计算机科学 2025-09-19 Zaid Alyafeai , Maged S. Al-Shaibani , Bernard Ghanem

Entity-Relationship (E-R) Search is a complex case of Entity Search where the goal is to search for multiple unknown entities and relationships connecting them. We assume that a E-R query can be decomposed as a sequence of sub-queries each…

信息检索 · 计算机科学 2018-10-09 Pedro Saleiro , Natasa Milic-Frayling , Eduarda Mendes Rodrigues , Carlos Soares

Word frequency-based methods for extractive summarization are easy to implement and yield reasonable results across languages. However, they have significant limitations - they ignore the role of context, they offer uneven coverage of…

计算与语言 · 计算机科学 2018-10-25 Archit Sakhadeo , Nisheeth Srivastava

Recently, Retrieval Augmented Generation (RAG) has emerged as a powerful technique in natural language processing, combining the strengths of retrieval-based and generation-based models to enhance text generation tasks. However, the…

计算与语言 · 计算机科学 2024-08-15 Samhaa R. El-Beltagy , Mohamed A. Abdallah

Clinical named entity recognition (NER) aims to retrieve important entities within clinical narratives. Recent works have demonstrated that large language models (LLMs) can achieve strong performance in this task. While previous works focus…

计算与语言 · 计算机科学 2025-02-21 Reza Averly , Xia Ning

Extraction of concepts and entities of interest from non-formal texts such as social media posts and informal communication is an important capability for decision support systems in many domains, including healthcare, customer relationship…

计算与语言 · 计算机科学 2024-01-11 Tamara Babaian , Jennifer Xu

Entity linking has recently been the subject of a significant body of research. Currently, the best performing approaches rely on trained mono-lingual models. Porting these approaches to other languages is consequently a difficult endeavor…

计算与语言 · 计算机科学 2017-10-18 Diego Moussallem , Ricardo Usbeck , Michael Röder , Axel-Cyrille Ngonga Ngomo

Large language models (LLMs) have created a new paradigm for natural language processing. Despite their advancement, LLM-based methods still lag behind traditional approaches in document-level relation extraction (DocRE), a critical task…

计算与语言 · 计算机科学 2024-12-10 Xingzuo Li , Kehai Chen , Yunfei Long , Min Zhang

Relational reasoning is the ability to infer relations that jointly bind multiple entities, attributes, or variables. This ability is central to scientific reasoning, but existing evaluations of relational reasoning in large language models…

人工智能 · 计算机科学 2026-04-15 Lukas Fesser , Yasha Ektefaie , Ada Fang , Sham M. Kakade , Marinka Zitnik

Document-level relation extraction (DocRE) aims to determine the relation between two entities from a document of multiple sentences. Recent studies typically represent the entire document by sequence- or graph-based models to predict the…

计算与语言 · 计算机科学 2022-04-28 Wang Xu , Kehai Chen , Lili Mou , Tiejun Zhao

Understanding complex character relations is crucial for narrative analysis and efficient script evaluation, yet existing extraction methods often fail to handle long-form narratives with nuanced interactions. To address this challenge, we…

计算与语言 · 计算机科学 2025-06-02 Ye Eun Chun , Taeyoon Hwang , Seung-won Hwang , Byung-Hak Kim

Relation extraction (RE) aims to identify semantic relations between entities in unstructured text. Although recent work extends traditional RE to multimodal scenarios, most approaches still adopt classification-based paradigms with fused…

计算与语言 · 计算机科学 2025-09-26 Lei Hei , Tingjing Liao , Yingxin Pei , Yiyang Qi , Jiaqi Wang , Ruiting Li , Feiliang Ren

Sentence-level relation extraction (RE) aims to identify the relationship between 2 entities given a contextual sentence. While there have been many attempts to solve this problem, the current solutions have a lot of room to improve. In…

计算与语言 · 计算机科学 2023-07-04 N Harsha Vardhan , Manav Chaudhary

We introduce the new concept of an Arabic Derivational Chain Bank CHAINBANK to leverage the relationship between form and meaning in modeling Arabic derivational morphology. We constructed a knowledge graph network of abstract patterns and…

计算与语言 · 计算机科学 2025-02-03 Reham Marzouk , Sondos Krouna , Nizar Habash

Named entity recognition (NER), which focuses on the extraction of semantically meaningful named entities and their semantic classes from text, serves as an indispensable component for several down-stream natural language processing (NLP)…

计算与语言 · 计算机科学 2018-10-23 Zhanming Jie , Aldrian Obaja Muis , Wei Lu

Driven by the demand for cross-sentence and large-scale relation extraction, document-level relation extraction (DocRE) has attracted increasing research interest. Despite the continuous improvement in performance, we find that existing…

计算与语言 · 计算机科学 2024-06-12 Shiao Meng , Xuming Hu , Aiwei Liu , Fukun Ma , Yawen Yang , Shuang Li , Lijie Wen