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Capitalization is an important feature in many NLP tasks such as Named Entity Recognition (NER) or Part of Speech Tagging (POS). We are trying to reproduce results of paper which shows how to mitigate a significant performance drop when…

计算与语言 · 计算机科学 2021-09-20 Andreas Kuster , Jakub Filipek , Viswa Virinchi Muppirala

Although modern named entity recognition (NER) systems show impressive performance on standard datasets, they perform poorly when presented with noisy data. In particular, capitalization is a strong signal for entities in many languages,…

计算与语言 · 计算机科学 2019-12-17 Stephen Mayhew , Nitish Gupta , Dan Roth

Capitalization normalization (truecasing) is the task of restoring the correct case (uppercase or lowercase) of noisy text. We propose a fast, accurate and compact two-level hierarchical word-and-character-based recurrent neural network…

计算与语言 · 计算机科学 2022-02-17 Hao Zhang , You-Chi Cheng , Shankar Kumar , W. Ronny Huang , Mingqing Chen , Rajiv Mathews

Tokenization is a foundational step in most natural language processing (NLP) pipelines, yet it introduces challenges such as vocabulary mismatch and out-of-vocabulary issues. Recent work has shown that models operating directly on raw text…

计算与语言 · 计算机科学 2025-05-05 Sumit Mamtani , Maitreya Sonawane , Kanika Agarwal , Nishanth Sanjeev

The dearth of clean textual data often acts as a bottleneck in several natural language processing applications. The data available often lacks proper case (uppercase or lowercase) information. This often comes up when text is obtained from…

计算与语言 · 计算机科学 2021-01-21 Gopi Ramena , Divija Nagaraju , Sukumar Moharana , Debi Prasanna Mohanty , Naresh Purre

Named Entity Recognition (NER) is an important subtask of information extraction that seeks to locate and recognise named entities. Despite recent achievements, we still face limitations in correctly detecting and classifying entities,…

信息检索 · 计算机科学 2018-09-07 Diego Esteves

The field of NLP has seen unprecedented achievements in recent years. Most notably, with the advent of large-scale pre-trained Transformer-based language models, such as BERT, there has been a noticeable improvement in text representation.…

计算与语言 · 计算机科学 2020-12-08 Lili Wang , Chongyang Gao , Jason Wei , Weicheng Ma , Ruibo Liu , Soroush Vosoughi

Health mention classification deals with the disease detection in a given text containing disease words. However, non-health and figurative use of disease words adds challenges to the task. Recently, adversarial training acting as a means…

计算与语言 · 计算机科学 2022-04-14 Pervaiz Iqbal Khan , Imran Razzak , Andreas Dengel , Sheraz Ahmed

The performance of a Part-of-speech (POS) tagger is highly dependent on the domain ofthe processed text, and for many domains there is no or only very little training data available. This work addresses the problem of POS tagging noisy…

计算与语言 · 计算机科学 2019-05-23 Luisa März , Dietrich Trautmann , Benjamin Roth

Recognizing named entities in a document is a key task in many NLP applications. Although current state-of-the-art approaches to this task reach a high performance on clean text (e.g. newswire genres), those algorithms dramatically degrade…

计算与语言 · 计算机科学 2019-06-11 Gustavo Aguilar , A. Pastor López-Monroy , Fabio A. González , Thamar Solorio

Truecasing is the task of restoring the correct case (uppercase or lowercase) of noisy text generated either by an automatic system for speech recognition or machine translation or by humans. It improves the performance of downstream NLP…

计算与语言 · 计算机科学 2021-09-02 Hao Zhang , You-Chi Cheng , Shankar Kumar , Mingqing Chen , Rajiv Mathews

Does normalization help Part-of-Speech (POS) tagging accuracy on noisy, non-canonical data? To the best of our knowledge, little is known on the actual impact of normalization in a real-world scenario, where gold error detection is not…

计算与语言 · 计算机科学 2017-07-18 Rob van der Goot , Barbara Plank , Malvina Nissim

To achieve state-of-the-art performance, one still needs to train NER models on large-scale, high-quality annotated data, an asset that is both costly and time-intensive to accumulate. In contrast, real-world applications often resort to…

计算与语言 · 计算机科学 2023-10-26 Zhendong Chu , Ruiyi Zhang , Tong Yu , Rajiv Jain , Vlad I Morariu , Jiuxiang Gu , Ani Nenkova

Part of speech (POS) tagging is a familiar NLP task. State of the art taggers routinely achieve token-level accuracies of over 97% on news body text, evidence that the problem is well understood. However, the register of English news…

计算与语言 · 计算机科学 2021-09-17 Adrian Benton , Hanyang Li , Igor Malioutov

Named Entity Recognition for social media data is challenging because of its inherent noisiness. In addition to improper grammatical structures, it contains spelling inconsistencies and numerous informal abbreviations. We propose a novel…

计算与语言 · 计算机科学 2019-06-11 Gustavo Aguilar , Suraj Maharjan , Adrian Pastor López-Monroy , Thamar Solorio

Hate speech detection is a critical, yet challenging problem in Natural Language Processing (NLP). Despite the existence of numerous studies dedicated to the development of NLP hate speech detection approaches, the accuracy is still poor.…

计算与语言 · 计算机科学 2018-09-17 Jing Qian , Mai ElSherief , Elizabeth M. Belding , William Yang Wang

Since a tweet is limited to 140 characters, it is ambiguous and difficult for traditional Natural Language Processing (NLP) tools to analyse. This research presents KeyXtract which enhances the machine learning based Stanford CoreNLP…

计算与语言 · 计算机科学 2017-08-10 Tharindu Weerasooriya , Nandula Perera , S. R. Liyanage

Named Entity Recognition (NER) is an important subtask of information extraction that seeks to locate and recognise named entities. Despite recent achievements, we still face limitations with correctly detecting and classifying entities,…

信息检索 · 计算机科学 2017-10-31 Diego Esteves , Rafael Peres , Jens Lehmann , Giulio Napolitano

Neural abstractive summarization methods often require large quantities of labeled training data. However, labeling large amounts of summarization data is often prohibitive due to time, financial, and expertise constraints, which has…

计算与语言 · 计算机科学 2022-02-09 Junnan Liu , Qianren Mao , Bang Liu , Hao Peng , Hongdong Zhu , Jianxin Li

This paper explores the challenges posed by nominal adjectives (NAs) in natural language processing (NLP) tasks, particularly in part-of-speech (POS) tagging. We propose treating NAs as a distinct POS tag, "JN," and investigate its impact…

计算与语言 · 计算机科学 2024-10-15 Lemeng Qi , Yang Han , Zhuotong Xie
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