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Zero-shot named entity recognition (NER) is the task of detecting named entities of specific types (such as 'Person' or 'Medicine') without any training examples. Current research increasingly relies on large synthetic datasets,…

计算与语言 · 计算机科学 2025-03-10 Jonas Golde , Patrick Haller , Max Ploner , Fabio Barth , Nicolaas Jedema , Alan Akbik

NLP benchmarks rely on standardized datasets for training and evaluating models and are crucial for advancing the field. Traditionally, expert annotations ensure high-quality labels; however, the cost of expert annotation does not scale…

计算与语言 · 计算机科学 2025-09-15 Omer Nahum , Nitay Calderon , Orgad Keller , Idan Szpektor , Roi Reichart

Most state-of-the-art models for named entity recognition (NER) rely on the availability of large amounts of labeled data, making them challenging to extend to new, lower-resourced languages. However, there are now several proposed…

计算与语言 · 计算机科学 2019-08-27 Aditi Chaudhary , Jiateng Xie , Zaid Sheikh , Graham Neubig , Jaime G. Carbonell

Auto-annotation by ensemble of models is an efficient method of learning on unlabeled data. Wrong or inaccurate annotations generated by the ensemble may lead to performance degradation of the trained model. To deal with this problem we…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Dror Simon , Miriam Farber , Roman Goldenberg

Uncertainty in machine learning models is a timely and vast field of research. In supervised learning, uncertainty can already occur in the first stage of the training process, the annotation phase. This scenario is particularly evident…

机器学习 · 计算机科学 2024-07-24 Katharina Hechinger , Christoph Koller , Xiao Xiang Zhu , Göran Kauermann

In this paper, we present our approach to extracting structured information from unstructured Electronic Health Records (EHR) [2] which can be used to, for example, study adverse drug reactions in patients due to chemicals in their…

计算与语言 · 计算机科学 2020-01-30 Amogh Kamat Tarcar , Aashis Tiwari , Vineet Naique Dhaimodker , Penjo Rebelo , Rahul Desai , Dattaraj Rao

Scarcity of high quality annotated images remains a limiting factor for training accurate image segmentation models. While more and more annotated datasets become publicly available, the number of samples in each individual database is…

计算机视觉与模式识别 · 计算机科学 2021-07-14 Gregory Filbrandt , Konstantinos Kamnitsas , David Bernstein , Alexandra Taylor , Ben Glocker

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

We propose a semi-supervised text classifier based on self-training using one positive and one negative property of neural networks. One of the weaknesses of self-training is the semantic drift problem, where noisy pseudo-labels accumulate…

计算与语言 · 计算机科学 2024-01-02 Payam Karisani

Named Entity Recognition (NER) serves as a foundational component in many natural language processing (NLP) pipelines. However, current NER models typically output a single predicted label sequence without any accompanying measure of…

计算与语言 · 计算机科学 2026-01-27 Matthew Singer , Srijan Sengupta , Karl Pazdernik

Named entity recognition (NER) is the task to detect and classify the entity spans in the text. When entity spans overlap between each other, this problem is named as nested NER. Span-based methods have been widely used to tackle the nested…

计算与语言 · 计算机科学 2022-09-16 Hang Yan , Yu Sun , Xiaonan Li , Xipeng Qiu

Named Entity Recognition (NER) plays an important role in a wide range of natural language processing tasks, such as relation extraction, question answering, etc. However, previous studies on NER are limited to particular genres, using…

计算与语言 · 计算机科学 2020-11-03 Mengdi Zhu , Zheye Deng , Wenhan Xiong , Mo Yu , Ming Zhang , William Yang Wang

Named Entity Recognition (NER) encounters the challenge of unbalanced labels, where certain entity types are overrepresented while others are underrepresented in real-world datasets. This imbalance can lead to biased models that perform…

计算与语言 · 计算机科学 2024-09-06 Abdul Rehman , Jian Jun Zhang , Xiaosong Yang

This paper proposes a novel training scheme for fast matching models in Search Ads, which is motivated by the real challenges in model training. The first challenge stems from the pursuit of high throughput, which prohibits the deployment…

信息检索 · 计算机科学 2019-04-23 Xue Li , Zhipeng Luo , Hao Sun , Jianjin Zhang , Weihao Han , Xianqi Chu , Liangjie Zhang , Qi Zhang

Named Entity Recognition (NER) performance often degrades rapidly when applied to target domains that differ from the texts observed during training. When in-domain labelled data is available, transfer learning techniques can be used to…

计算与语言 · 计算机科学 2020-05-01 Pierre Lison , Aliaksandr Hubin , Jeremy Barnes , Samia Touileb

Recent multilingual named entity recognition (NER) work has shown that large language models (LLMs) can provide effective synthetic supervision, yet such datasets have mostly appeared as by-products of broader experiments rather than as…

计算与语言 · 计算机科学 2025-12-17 Jonas Golde , Patrick Haller , Alan Akbik

TACRED is one of the largest and most widely used sentence-level relation extraction datasets. Proposed models that are evaluated using this dataset consistently set new state-of-the-art performance. However, they still exhibit large error…

计算与语言 · 计算机科学 2021-04-20 George Stoica , Emmanouil Antonios Platanios , Barnabás Póczos

Tobacco3482 is a widely used document classification benchmark dataset. However, our manual inspection of the entire dataset uncovers widespread ontological issues, especially large amounts of annotation label problems in the dataset. We…

计算机视觉与模式识别 · 计算机科学 2024-12-18 Gordon Lim , Stefan Larson , Kevin Leach

Deep neural network models have recently achieved state-of-the-art performance gains in a variety of natural language processing (NLP) tasks (Young, Hazarika, Poria, & Cambria, 2017). However, these gains rely on the availability of large…

计算与语言 · 计算机科学 2018-11-15 Maximilian Hofer , Andrey Kormilitzin , Paul Goldberg , Alejo Nevado-Holgado

Deep neural networks (DNNs) have been shown to over-fit a dataset when being trained with noisy labels for a long enough time. To overcome this problem, we present a simple and effective method self-ensemble label filtering (SELF) to…

计算机视觉与模式识别 · 计算机科学 2019-10-07 Duc Tam Nguyen , Chaithanya Kumar Mummadi , Thi Phuong Nhung Ngo , Thi Hoai Phuong Nguyen , Laura Beggel , Thomas Brox