Search Results for author: Sejoon Oh

Found 10 papers, 4 papers with code

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

no code implementations3 Nov 2024 Sejoon Oh, Yiqiao Jin, Megha Sharma, Donghyun Kim, Eric Ma, Gaurav Verma, Srijan Kumar

Multimodal large language models (MLLMs) have revolutionized vision-language understanding but remain vulnerable to multimodal jailbreak attacks, where adversarial inputs are meticulously crafted to elicit harmful or inappropriate responses.

Adversarial Text Rewriting for Text-aware Recommender Systems

1 code implementation1 Aug 2024 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.

Adversarial Text In-Context Learning +2

IntentRec: Predicting User Session Intent with Hierarchical Multi-Task Learning

no code implementations25 Jul 2024 Sejoon Oh, Moumita Bhattacharya, Yesu Feng, Sudarshan Lamkhede

Recommender systems have played a critical role in diverse digital services such as e-commerce, streaming media, social networks, etc.

Multi-Task Learning Recommendation Systems

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

1 code implementation26 Feb 2024 Gaurav Verma, MinJe Choi, Kartik Sharma, Jamelle Watson-Daniels, Sejoon Oh, Srijan Kumar

It is desirable to understand the roles of these two modules in modeling domain-specific visual attributes to inform the design of future models and streamline the interpretability efforts on the current models.

Language Modeling Language Modelling +1

FINEST: Stabilizing Recommendations by Rank-Preserving Fine-Tuning

no code implementations5 Feb 2024 Sejoon Oh, Berk Ustun, Julian McAuley, Srijan Kumar

Modern recommender systems may output considerably different recommendations due to small perturbations in the training data.

Recommendation Systems

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

no code implementations23 Sep 2022 Walid Shalaby, Sejoon Oh, Amir Afsharinejad, Srijan Kumar, Xiquan Cui

Using one public and one large industrial dataset, we experimentally show that state-of-the-art SBRSs have low performance on sparse sessions with sparse items.

Session-Based Recommendations

Rank List Sensitivity of Recommender Systems to Interaction Perturbations

no code implementations29 Jan 2022 Sejoon Oh, Berk Ustun, Julian McAuley, Srijan Kumar

We introduce a measure of stability for recommender systems, called Rank List Sensitivity (RLS), which measures how rank lists generated by a given recommender system at test time change as a result of a perturbation in the training data.

Recommendation Systems

Influence-guided Data Augmentation for Neural Tensor Completion

1 code implementation23 Aug 2021 Sejoon Oh, Sungchul Kim, Ryan A. Rossi, Srijan Kumar

In this paper, we propose DAIN, a general data augmentation framework that enhances the prediction accuracy of neural tensor completion methods.

Data Augmentation Imputation +3

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