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Data curation - the process of discovering, integrating, and cleaning data - is one of the oldest, hardest, yet inevitable data management problems. Despite decades of efforts from both researchers and practitioners, it is still one of the…

Databases · Computer Science 2019-03-26 Saravanan Thirumuruganathan , Nan Tang , Mourad Ouzzani , AnHai Doan

The widespread adoption of big data has ushered in a new era of data-driven decision-making, transforming numerous industries and sectors. However, the efficacy of these decisions hinges on the quality of the underlying data. Poor data…

Artificial Intelligence · Computer Science 2024-05-08 Widad Elouataoui

Human feedback plays a pivotal role in aligning large language models (LLMs) with human preferences. However, such feedback is often noisy or inconsistent, which can degrade the quality of reward models and hinder alignment. While various…

Artificial Intelligence · Computer Science 2025-10-15 Samuel Yeh , Sharon Li

Benchmark datasets for digital dermatology unwittingly contain inaccuracies that reduce trust in model performance estimates. We propose a resource-efficient data-cleaning protocol to identify issues that escaped previous curation. The…

Standard deep learning-based classification approaches require collecting all samples from all classes in advance and are trained offline. This paradigm may not be practical in real-world clinical applications, where new classes are…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Sana Ayromlou , Purang Abolmaesumi , Teresa Tsang , Xiaoxiao Li

Nowadays, data is becoming the new fuel for economic wealth and creation of novel and profitable business models. Multitude of technologies are contributing to an abundance of information sources which are already the baseline for…

Databases · Computer Science 2024-03-07 Laura Martín , Luis Sánchez , Jorge Lanza , Pablo Sotres

Data corruption, including missing and noisy data, poses significant challenges in real-world machine learning. This study investigates the effects of data corruption on model performance and explores strategies to mitigate these effects…

Machine Learning · Computer Science 2025-05-22 Qi Liu , Wanjing Ma

Data augmentation has been widely applied as an effective methodology to improve generalization in particular when training deep neural networks. Recently, researchers proposed a few intensive data augmentation techniques, which indeed…

Machine Learning · Computer Science 2019-11-22 Zhuoxun He , Lingxi Xie , Xin Chen , Ya Zhang , Yanfeng Wang , Qi Tian

Big data analysis has become an active area of study with the growth of machine learning techniques. To properly analyze data, it is important to maintain high-quality data. Thus, research on data cleaning is also important. It is difficult…

Databases · Computer Science 2019-10-25 Toshiyuki Shimizu , Hiroki Omori , Masatoshi Yoshikawa

Integrating heterogeneous data sources and expert knowledge is essential for overcoming data scarcity and enhancing estimation accuracy. Two main frameworks naturally arise to perform the integration of these multiple sources: sequential…

Methodology · Statistics 2025-11-26 Mario Figueira , David Conesa , Antonio López-Quílez , Håvard Rue

The problem of missing data, usually absent incurated and competition-standard datasets, is an unfortunate reality for most machine learning models used in industry applications. Recent work has focused on understanding the nature and the…

Machine Learning · Computer Science 2022-01-25 Spyridon Mouselinos , Kyriakos Polymenakos , Antonis Nikitakis , Konstantinos Kyriakopoulos

Data quality issues have attracted widespread attention due to the negative impacts of dirty data on data mining and machine learning results. The relationship between data quality and the accuracy of results could be applied on the…

Databases · Computer Science 2021-04-27 Zhixin Qi , Hongzhi Wang , Jianzhong Li , Hong Gao

Over the past years, there has been many efforts to curate and increase the added value of the raw data. Data curation has been defined as activities and processes an analyst undertakes to transform the raw data into contextualized data and…

Information Retrieval · Computer Science 2020-07-20 Alireza Tabebordbar

In the era of Industry 4.0, artificial intelligence (AI) is assuming an increasingly pivotal role within industrial systems. Despite the recent trend within various industries to adopt AI, the actual adoption of AI is not as developed as…

Artificial Intelligence · Computer Science 2024-06-25 Xuejiao Li , Cheng Yang , Charles Møller , Jay Lee

When working with real-world insurance data, practitioners often encounter challenges during the data preparation stage that can undermine the statistical validity and reliability of downstream modeling. This study illustrates that…

Machine Learning · Statistics 2026-03-20 Jiayi Guo , Panyi Dong , Zhiyu Quan

Most practical data science problems encounter missing data. A wide variety of solutions exist, each with strengths and weaknesses that depend upon the missingness-generating process. Here we develop a theoretical framework for training and…

Machine Learning · Computer Science 2022-11-15 Jahan C. Penny-Dimri , Christoph Bergmeir , Julian Smith

As the volume of publicly available data continues to grow, researchers face the challenge of limited diversity in benchmarking machine learning tasks. Although thousands of datasets are available in public repositories, the sheer abundance…

Information Retrieval · Computer Science 2025-02-25 Mara Graziani , Malina Molnar , Irina Espejo Morales , Joris Cadow-Gossweiler , Teodoro Laino

A novel correction algorithm is proposed for multi-class classification problems with corrupted training data. The algorithm is non-intrusive, in the sense that it post-processes a trained classification model by adding a correction…

Machine Learning · Computer Science 2020-02-13 Jun Hou , Tong Qin , Kailiang Wu , Dongbin Xiu

In this paper, we consider the problem of fine-grained image retrieval in an incremental setting, when new categories are added over time. On the one hand, repeatedly training the representation on the extended dataset is time-consuming. On…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Wei Chen , Yu Liu , Weiping Wang , Tinne Tuytelaars , Erwin M. Bakker , Michael Lew

Though data cleaning systems have earned great success and wide spread in both academia and industry, they fall short when trying to clean spatial data. The main reason is that state-of-the-art data cleaning systems mainly rely on…

Databases · Computer Science 2023-11-09 Yuchuan Huang , Mohamed F. Mokbel