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Political scientists often grapple with data scarcity in text classification. Recently, fine-tuned BERT models and their variants have gained traction as effective solutions to address this issue. In this study, we investigate the potential…

计算与语言 · 计算机科学 2024-11-11 Yu Wang , Wen Qu , Xin Ye

Detection of some types of toxic language is hampered by extreme scarcity of labeled training data. Data augmentation - generating new synthetic data from a labeled seed dataset - can help. The efficacy of data augmentation on toxic…

计算与语言 · 计算机科学 2020-10-27 Mika Juuti , Tommi Gröndahl , Adrian Flanagan , N. Asokan

We propose techniques to incorporate coarse taxonomic labels to train image classifiers in fine-grained domains. Such labels can often be obtained with a smaller effort for fine-grained domains such as the natural world where categories are…

计算机视觉与模式识别 · 计算机科学 2021-11-24 Jong-Chyi Su , Subhransu Maji

In ML-aided decision-making tasks, such as fraud detection or medical diagnosis, the human-in-the-loop, usually a domain-expert without technical ML knowledge, prefers high-level concept-based explanations instead of low-level explanations…

机器学习 · 计算机科学 2021-04-27 Catarina Belém , Vladimir Balayan , Pedro Saleiro , Pedro Bizarro

An essential aspect of prioritizing incident tickets for resolution is efficiently labeling tickets with fine-grained categories. However, ticket data is often complex and poses several unique challenges for modern machine learning methods:…

计算与语言 · 计算机科学 2023-07-04 Zhexiong Liu , Cris Benge , Siduo Jiang

Computerized Adaptive Testing (CAT) is a widely used, efficient test mode that adapts to the examinee's proficiency level in the test domain. CAT requires pre-trained item profiles, for CAT iteratively assesses the student real-time based…

机器学习 · 计算机科学 2025-03-12 Soonwoo Kwon , Sojung Kim , Seunghyun Lee , Jin-Young Kim , Suyeong An , Kyuseok Kim

The outpouring of various pre-trained models empowers knowledge distillation by providing abundant teacher resources, but there lacks a developed mechanism to utilize these teachers adequately. With a massive model repository composed of…

机器学习 · 计算机科学 2022-09-29 Su Lu , Han-Jia Ye , De-Chuan Zhan

Protecting privileged communications and data from inadvertent disclosure is a paramount task in the US legal practice. Traditionally counsels rely on keyword searching and manual review to identify privileged documents in cases. As data…

信息检索 · 计算机科学 2021-12-17 Haozhen Zhao , Shi Ye , Jingchao Yang

Knowledge tracing (KT) is a crucial task in computer-aided education and intelligent tutoring systems, predicting students' performance on new questions from their responses to prior ones. An accurate KT model can capture a student's…

计算机与社会 · 计算机科学 2025-02-14 Jiajun Cui , Hong Qian , Chanjin Zheng , Lu Wang , Mo Yu , Wei Zhang

Automatic short answer grading is an important research direction in the exploration of how to use artificial intelligence (AI)-based tools to improve education. Current state-of-the-art approaches use neural language models to create…

计算与语言 · 计算机科学 2022-07-12 Mengxue Zhang , Sami Baral , Neil Heffernan , Andrew Lan

We study the problem of computer-assisted teaching with explanations. Conventional approaches for machine teaching typically only provide feedback at the instance level e.g., the category or label of the instance. However, it is intuitive…

计算机视觉与模式识别 · 计算机科学 2018-02-21 Oisin Mac Aodha , Shihan Su , Yuxin Chen , Pietro Perona , Yisong Yue

Online conversations can be toxic and subjected to threats, abuse, or harassment. To identify toxic text comments, several deep learning and machine learning models have been proposed throughout the years. However, recent studies…

机器学习 · 计算机科学 2023-11-09 Md Azim Khan

We introduce a new language representation model called BERT, which stands for Bidirectional Encoder Representations from Transformers. Unlike recent language representation models, BERT is designed to pre-train deep bidirectional…

计算与语言 · 计算机科学 2019-05-28 Jacob Devlin , Ming-Wei Chang , Kenton Lee , Kristina Toutanova

Developing AI systems capable of nuanced ethical reasoning is critical as they increasingly influence human decisions, yet existing models often rely on superficial correlations rather than principled moral understanding. This paper…

计算机与社会 · 计算机科学 2025-10-16 Mahamodul Hasan Mahadi , Md. Nasif Safwan , Souhardo Rahman , Shahnaj Parvin , Aminun Nahar , Kamruddin Nur

Many pairwise classification tasks, such as paraphrase detection and open-domain question answering, naturally have extreme label imbalance (e.g., $99.99\%$ of examples are negatives). In contrast, many recent datasets heuristically choose…

计算与语言 · 计算机科学 2020-10-13 Stephen Mussmann , Robin Jia , Percy Liang

With the rapid proliferation of textual data, predicting long texts has emerged as a significant challenge in the domain of natural language processing. Traditional text prediction methods encounter substantial difficulties when grappling…

计算与语言 · 计算机科学 2024-01-24 Jiahui Zhao , Ziyi Meng , Stepan Gordeev , Zijie Pan , Dongjin Song , Sandro Steinbach , Caiwen Ding

Test-time adaptation (TTA) is an effective approach to mitigate performance degradation of trained models when encountering input distribution shifts at test time. However, existing TTA methods often suffer significant performance drops…

机器学习 · 计算机科学 2025-02-06 Minguk Jang , Hye Won Chung

It is well known that for some tasks, labeled data sets may be hard to gather. Therefore, we wished to tackle here the problem of having insufficient training data. We examined learning methods from unlabeled data after an initial training…

机器学习 · 计算机科学 2018-04-06 Gal Hyams , Daniel Greenfeld , Dor Bank

Self-supervised representation learning solves auxiliary prediction tasks (known as pretext tasks) without requiring labeled data to learn useful semantic representations. These pretext tasks are created solely using the input features,…

机器学习 · 计算机科学 2021-11-16 Jason D. Lee , Qi Lei , Nikunj Saunshi , Jiacheng Zhuo

Natural language understanding (NLU) has two core tasks: intent classification and slot filling. The success of pre-training language models resulted in a significant breakthrough in the two tasks. One of the promising solutions called BERT…

计算与语言 · 计算机科学 2023-02-03 Yu Guo , Zhilong Xie , Xingyan Chen , Huangen Chen , Leilei Wang , Huaming Du , Shaopeng Wei , Yu Zhao , Qing Li , Gang Wu