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Nested Named Entity Recognition (NNER) focuses on addressing overlapped entity recognition. Compared to Flat Named Entity Recognition (FNER), annotated resources are scarce in the corpus for NNER. Data augmentation is an effective approach…

计算与语言 · 计算机科学 2024-06-19 Xingming Liao , Nankai Lin , Haowen Li , Lianglun Cheng , Zhuowei Wang , Chong Chen

Named Entity Recognition (NER) is a fundamental task in Natural Language Processing, concerned with identifying spans of text expressing references to entities. NER research is often focused on flat entities only (flat NER), ignoring the…

计算与语言 · 计算机科学 2020-06-16 Juntao Yu , Bernd Bohnet , Massimo Poesio

State of the art Named Entity Recognition (NER) models have achieved an impressive ability to extract common phrases from text that belong to labels such as location, organization, time, and person. However, typical NER systems that rely on…

计算与语言 · 计算机科学 2024-01-24 Alexandra Loessberg-Zahl

Named Entity Recognition (NER) is a critical task that requires substantial annotated data, making it challenging in low-resource scenarios where label acquisition is expensive. While zero-shot and instruction-tuned approaches have made…

计算与语言 · 计算机科学 2025-10-21 Nanda Kumar Rengarajan , Jun Yan , Chun Wang

Named entity recognition (NER) is a crucial task that aims to identify structured information, which is often replete with complex, technical terms and a high degree of variability. Accurate and reliable NER can facilitate the extraction…

计算与语言 · 计算机科学 2024-10-21 Grace Yang , Zhiyi Li , Yadong Liu , Jungyeul Park

Although named entity recognition (NER) helps us to extract domain-specific entities from text (e.g., artists in the music domain), it is costly to create a large amount of training data or a structured knowledge base to perform accurate…

计算与语言 · 计算机科学 2023-06-07 Kosuke Nishida , Naoki Yoshinaga , Kyosuke Nishida

Named Entity Recognition (NER) is a core natural language processing task in which pre-trained language models have shown remarkable performance. However, standard benchmarks like CoNLL 2003 do not address many of the challenges that…

计算与语言 · 计算机科学 2023-05-01 Iker García-Ferrero , Jon Ander Campos , Oscar Sainz , Ander Salaberria , Dan Roth

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

Many recent named entity recognition (NER) studies criticize flat NER for its non-overlapping assumption, and switch to investigating nested NER. However, existing nested NER models heavily rely on training data annotated with nested…

计算与语言 · 计算机科学 2022-11-02 Enwei Zhu , Yiyang Liu , Ming Jin , Jinpeng Li

Named-entity recognition (NER) is fundamental to extracting structured information from the >80% of healthcare data that resides in unstructured clinical notes and biomedical literature. Despite recent advances with large language models,…

计算与语言 · 计算机科学 2025-08-05 Maziyar Panahi

Content on the Internet is heterogeneous and arises from various domains like News, Entertainment, Finance and Technology. Understanding such content requires identifying named entities (persons, places and organizations) as one of the key…

计算与语言 · 计算机科学 2016-12-02 Vivek Kulkarni , Yashar Mehdad , Troy Chevalier

One of the main tasks of Natural Language Processing (NLP), is Named Entity Recognition (NER). It is used in many applications and also can be used as an intermediate step for other tasks. We present ANER, a web-based named entity…

计算与语言 · 计算机科学 2023-08-30 Abdelrahman "Boda" Sadallah , Omar Ahmed , Shimaa Mohamed , Omar Hatem , Doaa Hesham , Ahmed H. Yousef

Biomedical entity linking aims to map biomedical mentions, such as diseases and drugs, to standard entities in a given knowledge base. The specific challenge in this context is that the same biomedical entity can have a wide range of names,…

计算与语言 · 计算机科学 2021-05-25 Lihu Chen , Gaël Varoquaux , Fabian M. Suchanek

The clinical named entity recognition (CNER) task seeks to locate and classify clinical terminologies into predefined categories, such as diagnostic procedure, disease disorder, severity, medication, medication dosage, and sign symptom.…

计算与语言 · 计算机科学 2021-06-25 Yichao Zhou , Chelsea Ju , J. Harry Caufield , Kevin Shih , Calvin Chen , Yizhou Sun , Kai-Wei Chang , Peipei Ping , Wei Wang

The objective of our study is to determine whether using English tools to extract and normalize French medical concepts on translations provides comparable performance to French models trained on a set of annotated French clinical notes. We…

计算与语言 · 计算机科学 2023-06-06 Christel Gérardin , Yuhan Xiong , Perceval Wajsbürt , Fabrice Carrat , Xavier Tannier

Named entity recognition (NER) is a fundamental task in natural language processing that involves identifying and classifying entities in sentences into pre-defined types. It plays a crucial role in various research fields, including entity…

计算与语言 · 计算机科学 2024-04-29 Dongsheng Wang , Xiaoqin Feng , Zeming Liu , Chuan Wang

Biomedical named entity recognition (NER) and entity linking (EL) strongly depend on annotated corpora, but the utility of these resources for benchmarking is often assumed rather than characterized. We present a corpus-centric framework…

计算与语言 · 计算机科学 2026-05-21 Robert Leaman , Rezarta Islamaj , Zhiyong Lu

We present a weakly-supervised data augmentation approach to improve Named Entity Recognition (NER) in a challenging domain: extracting biomedical entities (e.g., proteins) from the scientific literature. First, we train a neural NER (NNER)…

机器学习 · 计算机科学 2019-06-04 Joel Mathew , Shobeir Fakhraei , José Luis Ambite

Weak supervision has shown promising results in many natural language processing tasks, such as Named Entity Recognition (NER). Existing work mainly focuses on learning deep NER models only with weak supervision, i.e., without any human…

计算与语言 · 计算机科学 2021-08-03 Haoming Jiang , Danqing Zhang , Tianyu Cao , Bing Yin , Tuo Zhao

We conducted a human subject study of named entity recognition on a noisy corpus of conversational music recommendation queries, with many irregular and novel named entities. We evaluated the human NER linguistic behaviour in these…

计算与语言 · 计算机科学 2023-03-14 Elena V. Epure , Romain Hennequin