activity
20182026
most citedA Survey on Data Collection for Machine Learning: a Big Data -- AI Integration Perspective

152 citations · 265 across the 12 of their papers we have counts for

collaborators

13 papers

cs.IR2026

Understanding and Mitigating Training Instability in Large-Scale Recommender Systems: A Cascade Perspective

Yuening Li, Zeyu Wang, Zhen Zhang +8

Training large-scale recommender systems on dynamic industrial platforms, such as Short-Form Video (SFV) services with billions of daily interactions, faces critical stability chal…

cs.IR2026

TokenMinds: Pretrained User Tokens and Embeddings for User Understanding in Large Recommender Systems

Qingyun Liu, Bo Yan, Yang Liu +15

User modeling in industrial recommender systems typically produces dense embeddings, which suffer from representational constraints inherent to fixed-dimensional vectors. An emergi…

cs.LG2024★ 2 cited

PFGuard: A Generative Framework with Privacy and Fairness Safeguards

Soyeon Kim, Yuji Roh, Geon Heo +1

Generative models must ensure both privacy and fairness for Trustworthy AI. While these goals have been pursued separately, recent studies propose to combine existing privacy and f…

cs.LG2024

LEVI: Generalizable Fine-tuning via Layer-wise Ensemble of Different Views

Yuji Roh, Qingyun Liu, Huan Gui +8

Fine-tuning is becoming widely used for leveraging the power of pre-trained foundation models in new downstream tasks. While there are many successes of fine-tuning on various task…

cs.LG2023

Improving Fair Training under Correlation Shifts

Yuji Roh, Kangwook Lee, Steven Euijong Whang +1

Model fairness is an essential element for Trustworthy AI. While many techniques for model fairness have been proposed, most of them assume that the training and deployment data di…

cs.LG2021★ 41 cited

Data Collection and Quality Challenges in Deep Learning: A Data-Centric AI Perspective

Steven Euijong Whang, Yuji Roh, Hwanjun Song +1

Data-centric AI is at the center of a fundamental shift in software engineering where machine learning becomes the new software, powered by big data and computing infrastructure. H…

cs.LG2021★ 1 cited

Sample Selection for Fair and Robust Training

Yuji Roh, Kangwook Lee, Steven Euijong Whang +1

Fairness and robustness are critical elements of Trustworthy AI that need to be addressed together. Fairness is about learning an unbiased model while robustness is about learning…

cs.LG2021★ 2 cited

Responsible AI Challenges in End-to-end Machine Learning

Steven Euijong Whang, Ki Hyun Tae, Yuji Roh +1

Responsible AI is becoming critical as AI is widely used in our everyday lives. Many companies that deploy AI publicly state that when training a model, we not only need to improve…

cs.LG2020★ 37 cited

FairBatch: Batch Selection for Model Fairness

Yuji Roh, Kangwook Lee, Steven Euijong Whang +1

Training a fair machine learning model is essential to prevent demographic disparity. Existing techniques for improving model fairness require broad changes in either data preproce…

cs.LG2020★ 12 cited

Inspector Gadget: A Data Programming-based Labeling System for Industrial Images

Geon Heo, Yuji Roh, Seonghyeon Hwang +2

As machine learning for images becomes democratized in the Software 2.0 era, one of the serious bottlenecks is securing enough labeled data for training. This problem is especially…

cs.LG2020★ 13 cited

FR-Train: A Mutual Information-Based Approach to Fair and Robust Training

Yuji Roh, Kangwook Lee, Steven Euijong Whang +1

Trustworthy AI is a critical issue in machine learning where, in addition to training a model that is accurate, one must consider both fair and robust training in the presence of d…

cs.DB2019★ 5 cited

Data Cleaning for Accurate, Fair, and Robust Models: A Big Data - AI Integration Approach

Ki Hyun Tae, Yuji Roh, Young Hun Oh +2

The wide use of machine learning is fundamentally changing the software development paradigm (a.k.a. Software 2.0) where data becomes a first-class citizen, on par with code. As ma…

cs.LG2018★ 152 cited

A Survey on Data Collection for Machine Learning: a Big Data -- AI Integration Perspective

Yuji Roh, Geon Heo, Steven Euijong Whang

Data collection is a major bottleneck in machine learning and an active research topic in multiple communities. There are largely two reasons data collection has recently become a…