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In this paper, we propose a variational approach to unsupervised sentiment analysis. Instead of using ground truth provided by domain experts, we use target-opinion word pairs as a supervision signal. For example, in a document snippet "the…

Computation and Language · Computer Science 2020-08-24 Ziqian Zeng , Wenxuan Zhou , Xin Liu , Zizheng Lin , Yangqin Song , Michael David Kuo , Wan Hang Keith Chiu

Sentiment analysis is a very important natural language processing activity in which one identifies the polarity of a text, whether it conveys positive, negative, or neutral sentiment. Along with the growth of social media and the Internet,…

Computation and Language · Computer Science 2025-09-30 Meysam Shirdel Bilehsavar , Negin Mahmoudi , Mohammad Jalili Torkamani , Kiana Kiashemshaki

This work investigates whether synthetic emotional chain-of-thought data can improve the emotional reasoning abilities of smaller open large language models (LLMs). We design a multi-agent generation pipeline that produces therapy-style…

Computation and Language · Computer Science 2026-01-06 Arjhun Sreedar , Rohan Pillay , Laukik Patade

Exploring the tremendous amount of data efficiently to make a decision, similar to answering a complicated question, is challenging with many real-world application scenarios. In this context, automatic summarization has substantial…

Artificial Intelligence · Computer Science 2021-12-21 Samira Ghodratnama , Mehrdad Zakershahrak , Fariborz Sobhanmanesh

Summarization is an important application of large language models (LLMs). Most previous evaluation of summarization models has focused on their content selection, faithfulness, grammaticality and coherence. However, it is well known that…

Computation and Language · Computer Science 2024-06-07 Julius Steen , Katja Markert

Social media datasets are essential for research on a variety of topics, such as disinformation, influence operations, hate speech detection, or influencer marketing practices. However, access to social media datasets is often constrained…

Computation and Language · Computer Science 2025-05-07 Henry Tari , Nojus Sereiva , Rishabh Kaushal , Thales Bertaglia , Adriana Iamnitchi

Despite the remarkable advances in language modeling, current mainstream decoding methods still struggle to generate texts that align with human texts across different aspects. In particular, sampling-based methods produce less-repetitive…

Computation and Language · Computer Science 2024-06-06 Haozhe Ji , Pei Ke , Hongning Wang , Minlie Huang

Text data augmentation is an effective strategy for overcoming the challenge of limited sample sizes in many natural language processing (NLP) tasks. This challenge is especially prominent in the few-shot learning scenario, where the data…

Despite their impressive performance on diverse tasks, large language models (LMs) still struggle with tasks requiring rich world knowledge, implying the limitations of relying solely on their parameters to encode a wealth of world…

Computation and Language · Computer Science 2023-07-04 Alex Mallen , Akari Asai , Victor Zhong , Rajarshi Das , Daniel Khashabi , Hannaneh Hajishirzi

Dataset bias is a significant problem in training fair classifiers. When attributes unrelated to classification exhibit strong biases towards certain classes, classifiers trained on such dataset may overfit to these bias attributes,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-06 Zaiying Zhao , Soichiro Kumano , Toshihiko Yamasaki

The training of spoken language understanding (SLU) models often faces the problem of data scarcity. In this paper, we put forward a data augmentation method using pretrained language models to boost the variability and accuracy of…

Computation and Language · Computer Science 2021-03-12 Baolin Peng , Chenguang Zhu , Michael Zeng , Jianfeng Gao

Sycophancy is an undesirable behavior where models tailor their responses to follow a human user's view even when that view is not objectively correct (e.g., adapting liberal views once a user reveals that they are liberal). In this paper,…

Computation and Language · Computer Science 2024-02-16 Jerry Wei , Da Huang , Yifeng Lu , Denny Zhou , Quoc V. Le

Current large-scale language models can be politically biased as a result of the data they are trained on, potentially causing serious problems when they are deployed in real-world settings. In this paper, we describe metrics for measuring…

Computation and Language · Computer Science 2021-05-03 Ruibo Liu , Chenyan Jia , Jason Wei , Guangxuan Xu , Lili Wang , Soroush Vosoughi

Data augmentation is an essential technique in natural language processing (NLP) for enriching training datasets by generating diverse samples. This process is crucial for improving the robustness and generalization capabilities of NLP…

Computation and Language · Computer Science 2025-10-16 Zaitian Wang , Jinghan Zhang , Xinhao Zhang , Kunpeng Liu , Pengfei Wang , Yuanchun Zhou

Small datasets are common in health research. However, the generalization performance of machine learning models is suboptimal when the training datasets are small. To address this, data augmentation is one solution. Augmentation increases…

Implicit feedback, often used to build recommender systems, unavoidably confronts noise due to factors such as misclicks and position bias. Previous studies have attempted to alleviate this by identifying noisy samples based on their…

Information Retrieval · Computer Science 2024-09-17 Tianrui Song , Wenshuo Chao , Hao Liu

Data augmentation is a cornerstone technique in deep learning, widely used to improve model generalization. Traditional methods like random cropping and color jittering, as well as advanced techniques such as CutOut, Mixup, and CutMix, have…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Jingyang Li , Jiachun Pan , Kim-Chuan Toh , Pan Zhou

Data-driven predictive solutions predominant in commercial applications tend to suffer from biases and stereotypes, which raises equity concerns. Prediction models may discover, use, or amplify spurious correlations based on gender or other…

Computation and Language · Computer Science 2022-11-28 Abdelrahman Zayed , Prasanna Parthasarathi , Goncalo Mordido , Hamid Palangi , Samira Shabanian , Sarath Chandar

With the further development of informatization, more and more data is stored in the form of text. There are some loss of text during their generation and transmission. The paper aims to establish a language model based on the large-scale…

Computation and Language · Computer Science 2017-11-03 Ji Wen

This paper tackles one of the greatest limitations in Machine Learning: Data Scarcity. Specifically, we explore whether high accuracy classifiers can be built from small datasets, utilizing a combination of data augmentation techniques and…

Computation and Language · Computer Science 2020-07-03 Chetanya Rastogi , Nikka Mofid , Fang-I Hsiao