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A growing body of work shows that models exploit annotation artifacts to achieve state-of-the-art performance on standard crowdsourced benchmarks---datasets collected from crowdworkers to create an evaluation task---while still failing on…

Computation and Language · Computer Science 2020-10-13 William Huang , Haokun Liu , Samuel R. Bowman

Data augmentation has long been a cornerstone for reducing overfitting in vision models, with methods like AutoAugment automating the design of task-specific augmentations. Recent advances in generative models, such as conditional diffusion…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Judah Goldfeder , Shreyes Kaliyur , Vaibhav Sourirajan , Patrick Minwan Puma , Philippe Martin Wyder , Yuhang Hu , Jiong Lin , Hod Lipson

Recommender systems are essential for modern content platforms, yet traditional behavior-based models often struggle with cold users who have limited interaction data. Engaging these users is crucial for platform growth. To bridge this gap,…

Information Retrieval · Computer Science 2025-10-13 Lin Wang , Weisong Wang , Xuanji Xiao , Qing Li

Enhancing the generalization capability of robotic learning to enable robots to operate effectively in diverse, unseen scenes is a fundamental and challenging problem. Existing approaches often depend on pretraining with large-scale data…

Robotics · Computer Science 2026-02-17 Xinhua Wang , Kun Wu , Zhen Zhao , Hu Cao , Yinuo Zhao , Zhiyuan Xu , Meng Li , Shichao Fan , Di Wu , Yixue Zhang , Ning Liu , Zhengping Che , Jian Tang

The rapid propagation of misinformation poses substantial risks to public interest. To combat misinformation, large language models (LLMs) are adapted to automatically verify claim credibility. Nevertheless, existing methods heavily rely on…

Computation and Language · Computer Science 2024-06-17 Zhenrui Yue , Huimin Zeng , Lanyu Shang , Yifan Liu , Yang Zhang , Dong Wang

Crowd-sourcing is a cheap and popular means of creating training and evaluation datasets for machine learning, however it poses the problem of `truth inference', as individual workers cannot be wholly trusted to provide reliable…

Machine Learning · Computer Science 2019-02-26 Yuan Li , Benjamin I. P. Rubinstein , Trevor Cohn

Deep learning (DL) models in medical imaging face challenges in generalizability and robustness due to variations in image acquisition parameters (IAP). In this work, we introduce a novel method using conditional denoising diffusion…

Image and Video Processing · Electrical Eng. & Systems 2024-11-01 Pedro Morão , Joao Santinha , Yasna Forghani , Nuno Loução , Pedro Gouveia , Mario A. T. Figueiredo

The class imbalance problem can cause machine learning models to produce an undesirable performance on the minority class as well as the whole dataset. Using data augmentation techniques to increase the number of samples is one way to…

Computation and Language · Computer Science 2023-06-02 Akbar Karimi , Lucie Flek

This paper proposes a dataset augmentation method by fine-tuning pre-trained diffusion models. Generating images using a pre-trained diffusion model with textual conditioning often results in domain discrepancy between real data and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Abdullah Al Rahat , Hemanth Venkateswara

Fact verification has attracted a lot of attention in the machine learning and natural language processing communities, as it is one of the key methods for detecting misinformation. Existing large-scale benchmarks for this task have focused…

Data augmentation is one of the most successful techniques to improve the classification accuracy of machine learning models in computer vision. However, applying data augmentation to tabular data is a challenging problem since it is hard…

Machine Learning · Computer Science 2022-07-26 Azhar Mohammed , Dang Nguyen , Bao Duong , Thin Nguyen

Deep learning models can perform well in complex medical imaging classification tasks, even when basing their conclusions on spurious correlations (i.e. confounders), should they be prevalent in the training dataset, rather than on the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Amar Kumar , Nima Fathi , Raghav Mehta , Brennan Nichyporuk , Jean-Pierre R. Falet , Sotirios Tsaftaris , Tal Arbel

Several recent papers have investigated the potential of language models as knowledge bases as well as the existence of severe biases when extracting factual knowledge. In this work, we focus on the factual probing performance over unseen…

Computation and Language · Computer Science 2024-04-02 Yijun Yang , Jie He , Pinzhen Chen , Víctor Gutiérrez-Basulto , Jeff Z. Pan

We introduce the CRASS (counterfactual reasoning assessment) data set and benchmark utilizing questionized counterfactual conditionals as a novel and powerful tool to evaluate large language models. We present the data set design and…

Computation and Language · Computer Science 2022-10-06 Jörg Frohberg , Frank Binder

Various contrastive learning approaches have been proposed in recent years and achieve significant empirical success. While effective and prevalent, contrastive learning has been less explored for time series data. A key component of…

Counterfactual explanations (CFEs) are a popular approach for interpreting machine learning predictions by identifying minimal feature changes that alter model outputs. However, in real-world settings, users often refine feasibility…

Machine Learning · Computer Science 2025-05-28 Christos Fragkathoulas , Evaggelia Pitoura

Recently, using large language models (LLMs) for data augmentation has led to considerable improvements in unsupervised sentence embedding models. However, existing methods encounter two primary challenges: limited data diversity and high…

Computation and Language · Computer Science 2025-10-07 Peichao Lai , Zhengfeng Zhang , Wentao Zhang , Fangcheng Fu , Bin Cui

A data augmentation module is utilized in contrastive learning to transform the given data example into two views, which is considered essential and irreplaceable. However, the predetermined composition of multiple data augmentations brings…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Junbo Zhang , Kaisheng Ma

This paper introduces the Cross-lingual Fact Extraction and VERification (XFEVER) dataset designed for benchmarking the fact verification models across different languages. We constructed it by translating the claim and evidence texts of…

Computation and Language · Computer Science 2023-10-26 Yi-Chen Chang , Canasai Kruengkrai , Junichi Yamagishi

Generating factual-consistent summaries is a challenging task for abstractive summarization. Previous works mainly encode factual information or perform post-correct/rank after decoding. In this paper, we provide a factual-consistent…

Computation and Language · Computer Science 2022-01-11 Wei Liu , Huanqin Wu , Wenjing Mu , Zhen Li , Tao Chen , Dan Nie
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