activity
20172024
most citedScalable Tucker Factorization for Sparse Tensors - Algorithms and Discoveries

43 citations · 119 across the 10 of their papers we have counts for

collaborators

10 papers

cs.CL2024

UniGuard: Towards Universal Safety Guardrails for Jailbreak Attacks on Multimodal Large Language Models

Sejoon Oh, Yiqiao Jin, Megha Sharma +4

Multimodal large language models (MLLMs) have revolutionized vision-language understanding but remain vulnerable to multimodal jailbreak attacks, where adversarial inputs are metic…

cs.IR2024★ 2 cited

Adversarial Text Rewriting for Text-aware Recommender Systems

Sejoon Oh, Gaurav Verma, Srijan Kumar

Text-aware recommender systems incorporate rich textual features, such as titles and descriptions, to generate item recommendations for users. The use of textual features helps mit…

cs.IR2024

FINEST: Stabilizing Recommendations by Rank-Preserving Fine-Tuning

Sejoon Oh, Berk Ustun, Julian McAuley +1

Modern recommender systems may output considerably different recommendations due to small perturbations in the training data. Changes in the data from a single user will alter the…

cs.CL2024

Cross-Modal Projection in Multimodal LLMs Doesn't Really Project Visual Attributes to Textual Space

Gaurav Verma, Minje Choi, Kartik Sharma +3

Multimodal large language models (MLLMs) like LLaVA and GPT-4(V) enable general-purpose conversations about images with the language modality. As off-the-shelf MLLMs may have limit…

cs.IR2022★ 22 cited

M2TRec: Metadata-aware Multi-task Transformer for Large-scale and Cold-start free Session-based Recommendations

Walid Shalaby, Sejoon Oh, Amir Afsharinejad +2

Session-based recommender systems (SBRSs) have shown superior performance over conventional methods. However, they show limited scalability on large-scale industrial datasets since…

cs.IR2022★ 8 cited

Implicit Session Contexts for Next-Item Recommendations

Sejoon Oh, Ankur Bhardwaj, Jongseok Han +3

Session-based recommender systems capture the short-term interest of a user within a session. Session contexts (i.e., a user's high-level interests or intents within a session) are…

cs.IR2022★ 21 cited

Rank List Sensitivity of Recommender Systems to Interaction Perturbations

Sejoon Oh, Berk Ustun, Julian McAuley +1

Prediction models can exhibit sensitivity with respect to training data: small changes in the training data can produce models that assign conflicting predictions to individual dat…

cs.LG2021★ 12 cited

Influence-guided Data Augmentation for Neural Tensor Completion

Sejoon Oh, Sungchul Kim, Ryan A. Rossi +1

How can we predict missing values in multi-dimensional data (or tensors) more accurately? The task of tensor completion is crucial in many applications such as personalized recomme…

q-bio.GN2018★ 11 cited

GIFT: Guided and Interpretable Factorization for Tensors - An Application to Large-Scale Multi-platform Cancer Analysis

Jungwoo Lee, Sejoon Oh, Lee Sael

Given multi-platform genome data with prior knowledge of functional gene sets, how can we extract interpretable latent relationships between patients and genes? More specifically,…

math.NA2017★ 43 cited

Scalable Tucker Factorization for Sparse Tensors - Algorithms and Discoveries

Sejoon Oh, Namyong Park, Lee Sael +1

Given sparse multi-dimensional data (e.g., (user, movie, time; rating) for movie recommendations), how can we discover latent concepts/relations and predict missing values? Tucker…