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Modern machine learning pipelines are increasingly combining and mixing data from diverse and disparate sources, e.g., pre-training large language models. Yet, finding the optimal data mixture is a challenging and open problem. We formalize…

Machine Learning · Computer Science 2026-01-16 Anvith Thudi , Evianne Rovers , Yangjun Ruan , Tristan Thrush , Chris J. Maddison

In spite of recent progress, image diffusion models still produce artifacts. A common solution is to leverage the feedback provided by quality assessment systems or human annotators to optimize the model, where images are generally rated in…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Yiyang Wang , Xi Chen , Xiaogang Xu , Sihui Ji , Yu Liu , Yujun Shen , Hengshuang Zhao

Data augmentation is an effective regularization strategy for mitigating overfitting in deep neural networks, and it plays a crucial role in 3D vision tasks, where the point cloud data is relatively limited. While mixing-based augmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Yi Wang , Jiaze Wang , Jinpeng Li , Zixu Zhao , Guangyong Chen , Anfeng Liu , Pheng-Ann Heng

The abilities of large language models (LLMs) have recently progressed to unprecedented levels, paving the way to novel applications in a wide variety of areas. In computer vision, LLMs can be used to prime vision-language tasks such image…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Théophane Vallaeys , Mustafa Shukor , Matthieu Cord , Jakob Verbeek

The goal of cooperative verification is to combine verification approaches in such a way that they work together to verify a system model. In particular, cooperative verifiers provide exchangeable information (verification artifacts) to…

Software Engineering · Computer Science 2019-05-22 Dirk Beyer , Heike Wehrheim

This paper introduces a new algorithm for unsupervised learning of keypoint detectors and descriptors, which demonstrates fast convergence and good performance across different datasets. The training procedure uses homographic…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Anatoly Belikov , Alexey Potapov

The indistinguishability of AI-generated content from human text raises challenges in transparency and accountability. While several methods exist to watermark models behind APIs, embedding watermark strategies directly into model weights…

Machine Learning · Computer Science 2025-04-10 Fay Elhassan , Niccolò Ajroldi , Antonio Orvieto , Jonas Geiping

Training algorithms, broadly construed, are an essential part of every deep learning pipeline. Training algorithm improvements that speed up training across a wide variety of workloads (e.g., better update rules, tuning protocols, learning…

We develop a methodology for analyzing language model task performance at the individual example level based on training data density estimation. Experiments with paraphrasing as a controlled intervention on finetuning data demonstrate that…

We propose a method to optimize language model pre-training data mixtures through efficient approximation of the cross-entropy loss corresponding to each candidate mixture via a Mixture of Data Experts (MDE). We use this approximation as a…

Machine Learning · Computer Science 2025-02-25 Lior Belenki , Alekh Agarwal , Tianze Shi , Kristina Toutanova

Pretrained language models demonstrate strong performance in most NLP tasks when fine-tuned on small task-specific datasets. Hence, these autoregressive models constitute ideal agents to operate in text-based environments where language…

Computation and Language · Computer Science 2021-09-21 Vincent Micheli , François Fleuret

As a dominant paradigm, fine-tuning a pre-trained model on the target data is widely used in many deep learning applications, especially for small data sets. However, recent studies have empirically shown that training from scratch has the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Ziquan Liu , Yi Xu , Yuanhong Xu , Qi Qian , Hao Li , Xiangyang Ji , Antoni Chan , Rong Jin

Many approaches have been proposed to use diffusion models to augment training datasets for downstream tasks, such as classification. However, diffusion models are themselves trained on large datasets, often with noisy annotations, and it…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Max F. Burg , Florian Wenzel , Dominik Zietlow , Max Horn , Osama Makansi , Francesco Locatello , Chris Russell

Modern language models (LMs) pose a new challenge in capability assessment. Static benchmarks inevitably saturate without providing confidence in the deployment tolerances of LM-based systems, but developers nonetheless claim that their…

Software Engineering · Computer Science 2024-07-31 Michael Saxon , Ari Holtzman , Peter West , William Yang Wang , Naomi Saphra

We demonstrate that explicitly aligning the pretraining objectives to the finetuning objectives in language model training significantly improves the finetuning task performance and reduces the minimum amount of finetuning examples…

Computation and Language · Computer Science 2020-02-07 Nuo Wang Pierse , Jingwen Lu

The weakly supervised sound event detection problem is the task of predicting the presence of sound events and their corresponding starting and ending points in a weakly labeled dataset. A weak dataset associates each training sample (a…

Sound · Computer Science 2021-06-22 Mohammad Rasool Izadi , Robert Stevenson , Laura N. Kloepper

Data augmentation is becoming essential for improving regression performance in critical applications including manufacturing, climate prediction, and finance. Existing techniques for data augmentation largely focus on classification tasks…

Machine Learning · Computer Science 2022-08-18 Seong-Hyeon Hwang , Steven Euijong Whang

Conducting contamination-free evaluation of mathematical capabilities can be difficult for two reasons: models may memorize a test set once it is made public, and current mathematical benchmarks are prone to overfitting due to having…

Artificial Intelligence · Computer Science 2025-10-08 Dayyán O'Brien , Barry Haddow , Emily Allaway , Pinzhen Chen

Many NLP models gain performance by having access to a knowledge base. A lot of research has been devoted to devising and improving the way the knowledge base is accessed and incorporated into the model, resulting in a number of mechanisms…

Computation and Language · Computer Science 2022-01-25 Vilém Zouhar , Marius Mosbach , Debanjali Biswas , Dietrich Klakow

Representation learning has been widely studied in the context of meta-learning, enabling rapid learning of new tasks through shared representations. Recent works such as MAML have explored using fine-tuning-based metrics, which measure the…

Machine Learning · Computer Science 2021-05-06 Kurtland Chua , Qi Lei , Jason D. Lee