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The analyst effort in data cleaning is gradually shifting away from the design of hand-written scripts to building and tuning complex pipelines of automated data cleaning libraries. Hyper-parameter tuning for data cleaning is very different…

Databases · Computer Science 2019-05-08 Sanjay Krishnan , Eugene Wu

When tackling real-life datasets, it is common to face the existence of scrambled missing values within data. Considered as 'dirty data', usually it is removed during a pre-processing step. Starting from the fact that 'making up this…

Databases · Computer Science 2019-01-04 Leila Ben Othman

We introduce HoloClean, a framework for holistic data repairing driven by probabilistic inference. HoloClean unifies existing qualitative data repairing approaches, which rely on integrity constraints or external data sources, with…

Databases · Computer Science 2017-02-06 Theodoros Rekatsinas , Xu Chu , Ihab F. Ilyas , Christopher Ré

Deep generative models are known to produce undesirable samples such as harmful content. Traditional mitigation methods include re-training from scratch, filtering, or editing; however, these are either computationally expensive or can be…

Machine Learning · Computer Science 2024-02-22 Zhifeng Kong , Kamalika Chaudhuri

Data cleaning, whether manual or algorithmic, is rarely perfect leaving a dataset with an unknown number of false positives and false negatives after cleaning. In many scenarios, quantifying the number of remaining errors is challenging…

Databases · Computer Science 2017-05-30 Yeounoh Chung , Sanjay Krishnan , Tim Kraska

In this paper we present GDR, a Guided Data Repair framework that incorporates user feedback in the cleaning process to enhance and accelerate existing automatic repair techniques while minimizing user involvement. GDR consults the user on…

Databases · Computer Science 2011-03-17 Mohamed Yakout , Ahmed K. Elmagarmid , Jennifer Neville , Mourad Ouzzani , Ihab F. Ilyas

Multi-modal datasets, like those involving images, often miss the detailed descriptions that properly capture the rich information encoded in each item. This makes answering complex natural language queries a major challenge in this domain.…

Information Retrieval · Computer Science 2025-06-03 Mahdi Erfanian , Mohsen Dehghankar , Abolfazl Asudeh

Big data analysis poses the dual problem of privacy preservation and utility, i.e., how accurate data analyses remain after transforming original data in order to protect the privacy of the individuals that the data is about - and whether…

Machine Learning · Computer Science 2022-11-29 Md Sakib Nizam Khan , Niklas Reje , Sonja Buchegger

In many classification datasets, the task labels are spuriously correlated with some input attributes. Classifiers trained on such datasets often rely on these attributes for prediction, especially when the spurious correlation is high, and…

Machine Learning · Computer Science 2023-12-11 Abhinav Kumar , Amit Deshpande , Amit Sharma

Imperfections in data annotation, known as label noise, are detrimental to the training of machine learning models and have an often-overlooked confounding effect on the assessment of model performance. Nevertheless, employing experts to…

Imputation of missing attribute values in medical datasets for extracting hidden knowledge from medical datasets is an interesting research topic of interest which is very challenging. One cannot eliminate missing values in medical records.…

Databases · Computer Science 2016-03-11 Yelipe UshaRani , P. Sammulal

Acquiring a substantial number of data points for training accurate machine learning (ML) models is a big challenge in scientific fields where data collection is resource-intensive. Here, we propose a novel approach for constructing a…

Machine Learning · Computer Science 2025-05-07 M. R. Mahani , Igor A. Nechepurenko , Yasmin Rahimof , Andreas Wicht

With the exponential increase in online scientific literature, identifying reliable domain-specific data has become increasingly important but also very challenging. Manual data collection and filtering for domain-specific scientific…

Information Retrieval · Computer Science 2026-03-10 Nikita Gautam , Doina Caragea , Ignacio Ciampitti , Federico Gomez

Prediction failures of machine learning models often arise from deficiencies in training data, such as incorrect labels, outliers, and selection biases. However, such data points that are responsible for a given failure mode are generally…

Machine Learning · Computer Science 2022-11-11 Ryutaro Tanno , Melanie F. Pradier , Aditya Nori , Yingzhen Li

Nowadays, data augmentation through synthetic data has been widely used in the field of Grammatical Error Correction (GEC) to alleviate the problem of data scarcity. However, these synthetic data are mainly used in the pre-training phase…

Computation and Language · Computer Science 2024-06-26 Yixuan Wang , Baoxin Wang , Yijun Liu , Qingfu Zhu , Dayong Wu , Wanxiang Che

Deep learning models for visual recognition often exhibit systematic errors due to underrepresented semantic subpopulations. Although existing debugging frameworks can pinpoint these failures by identifying key failure attributes, repairing…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Ouyang Xu , Baoming Zhang , Ruiyu Mao , Yunhui Guo

Data repairing is a key problem in data cleaning which aims to uncover and rectify data errors. Traditional methods depend on data dependencies to check the existence of errors in data, but they fail to rectify the errors. To overcome this…

Databases · Computer Science 2019-09-24 Hiba Abu Ahmad , Hongzhi Wang

Over the past three decades, synthetic data methods for statistical disclosure control have continually evolved, but mainly within the domain of survey data sets. There are certain characteristics of administrative databases, such as their…

Methodology · Statistics 2022-05-13 James Edward Jackson , Robin Mitra , Brian Joseph Francis , Iain Dove

Real-world data is often incomplete and contains missing values. To train accurate models over real-world datasets, users need to spend a substantial amount of time and resources imputing and finding proper values for missing data items. In…

Machine Learning · Statistics 2024-03-05 Cheng Zhen , Nischal Aryal , Arash Termehchy , Alireza Aghasi , Amandeep Singh Chabada

Data management has traditionally relied on synthetic data generators to generate structured benchmarks, like the TPC suite, where we can control important parameters like data size and its distribution precisely. These benchmarks were…

Databases · Computer Science 2023-08-09 Koyena Pal , Aamod Khatiwada , Roee Shraga , Renée J. Miller
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