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The memorization effect of deep neural networks (DNNs) plays a pivotal role in recent label noise learning methods. To exploit this effect, the model prediction-based methods have been widely adopted, which aim to exploit the outputs of…

机器学习 · 计算机科学 2022-06-28 Chuang Zhang , Li Shen , Jian Yang , Chen Gong

This paper explores the application of synthetic data in the post-OCR domain on multiple fronts by conducting experiments to assess the impact of data volume, augmentation, and synthetic data generation methods on model performance.…

计算与语言 · 计算机科学 2024-08-14 Shuhao Guan , Derek Greene

Despite the success of deep neural networks (DNNs) in image classification tasks, the human-level performance relies on massive training data with high-quality manual annotations, which are expensive and time-consuming to collect. There…

机器学习 · 计算机科学 2019-04-15 Junnan Li , Yongkang Wong , Qi Zhao , Mohan Kankanhalli

Sarcasm is the use of words usually used to either mock or annoy someone, or for humorous purposes. Sarcasm is largely used in social networks and microblogging websites, where people mock or censure in a way that makes it difficult even…

计算与语言 · 计算机科学 2023-02-07 Alif Tri Handoyo , Hidayaturrahman , Derwin Suhartono

Recent advancement in large language models (LLMs) has offered a strong potential for natural language systems to process informal language. A representative form of informal language is slang, used commonly in daily conversations and…

计算与语言 · 计算机科学 2024-04-16 Zhewei Sun , Qian Hu , Rahul Gupta , Richard Zemel , Yang Xu

This paper uses the BERT model, which is a transformer-based architecture, to solve task 4A, English Language, Sentiment Analysis in Twitter of SemEval2017. BERT is a very powerful large language model for classification tasks when the…

计算与语言 · 计算机科学 2024-08-31 Rupak Kumar Das , Ted Pedersen

During the 2016 US elections Twitter experienced unprecedented levels of propaganda and fake news through the collaboration of bots and hired persons, the ramifications of which are still being debated. This work proposes an approach to…

社会与信息网络 · 计算机科学 2017-11-30 Erdem Beğenilmiş , Suzan Üsküdarlı

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

The context-dependent nature of online aggression makes annotating large collections of data extremely difficult. Previously studied datasets in abusive language detection have been insufficient in size to efficiently train deep learning…

计算与语言 · 计算机科学 2018-08-31 Younghun Lee , Seunghyun Yoon , Kyomin Jung

Social media datasets, especially Twitter tweets, are popular in the field of text classification. Tweets are a valuable source of micro-text (sometimes referred to as "micro-blogs"), and have been studied in domains such as sentiment…

信息检索 · 计算机科学 2017-08-29 Ankit Vadehra , Maura R. Grossman , Gordon V. Cormack

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

With the rise in popularity of public social media and micro-blogging services, most notably Twitter, the people have found a venue to hear and be heard by their peers without an intermediary. As a consequence, and aided by the public…

计算与语言 · 计算机科学 2016-06-21 Prashanth Vijayaraghavan , Soroush Vosoughi , Deb Roy

As sound event classification moves towards larger datasets, issues of label noise become inevitable. Web sites can supply large volumes of user-contributed audio and metadata, but inferring labels from this metadata introduces errors due…

In recent work, we identified and studied a small cohort of Twitter users whose pregnancies with birth defect outcomes could be observed via their publicly available tweets. Exploiting social media's large-scale potential to complement the…

计算与语言 · 计算机科学 2019-10-03 Ari Z. Klein , Abeed Sarker , Davy Weissenbacher , Graciela Gonzalez-Hernandez

Data-Free Knowledge Distillation (DFKD) has made significant recent strides by transferring knowledge from a teacher neural network to a student neural network without accessing the original data. Nonetheless, existing approaches encounter…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Minh-Tuan Tran , Trung Le , Xuan-May Le , Mehrtash Harandi , Quan Hung Tran , Dinh Phung

Social spam produces a great amount of noise on social media services such as Twitter, which reduces the signal-to-noise ratio that both end users and data mining applications observe. Existing techniques on social spam detection have…

信息检索 · 计算机科学 2015-03-26 Bo Wang , Arkaitz Zubiaga , Maria Liakata , Rob Procter

Label noise remains a challenge for training robust classification models. Most methods for mitigating label noise have been benchmarked using primarily datasets with synthetic noise. While the need for datasets with realistic noise…

We investigate different strategies for automatic offensive language classification on German Twitter data. For this, we employ a sequentially combined BiLSTM-CNN neural network. Based on this model, three transfer learning tasks to improve…

计算与语言 · 计算机科学 2018-11-08 Gregor Wiedemann , Eugen Ruppert , Raghav Jindal , Chris Biemann

Existing rumor detection strategies typically provide detection labels while ignoring their explanation. Nonetheless, providing pieces of evidence to explain why a suspicious tweet is rumor is essential. As such, a novel model, LOSIRD, was…

社会与信息网络 · 计算机科学 2021-12-28 Jiawen Li , Shiwen Ni , Hung-Yu Kao

Online social media is rife with offensive and hateful comments, prompting the need for their automatic detection given the sheer amount of posts created every second. Creating high-quality human-labelled datasets for this task is difficult…

计算与语言 · 计算机科学 2023-08-01 João A. Leite , Carolina Scarton , Diego F. Silva