Search Results for author: YongJae lee

Found 11 papers, 2 papers with code

Stock Recommendations for Individual Investors: A Temporal Graph Network Approach with Diversification-Enhancing Contrastive Learning

no code implementations27 Mar 2024 Youngbin Lee, Yejin Kim, YongJae lee

Hence, the tricky point in stock recommendation is that recommendations should give good investment performance but also should not ignore individual preferences.

Contrastive Learning Recommendation Systems

Temporal Graph Networks for Graph Anomaly Detection in Financial Networks

no code implementations27 Mar 2024 Yejin Kim, Youngbin Lee, Minyoung Choe, Sungju Oh, YongJae lee

This paper explores the utilization of Temporal Graph Networks (TGN) for financial anomaly detection, a pressing need in the era of fintech and digitized financial transactions.

Fraud Detection Graph Anomaly Detection +1

A Recommender System for NFT Collectibles with Item Feature

no code implementations27 Mar 2024 Minjoo Choi, Seonmi Kim, Yejin Kim, Youngbin Lee, Joohwan Hong, YongJae lee

Recommender systems have been actively studied and applied in various domains to deal with information overload.

Recommendation Systems

A Temporal Graph Network Framework for Dynamic Recommendation

no code implementations24 Mar 2024 Yejin Kim, Youngbin Lee, Vincent Yuan, Annika Lee, YongJae lee

Recommender systems, crucial for user engagement on platforms like e-commerce and streaming services, often lag behind users' evolving preferences due to static data reliance.

Recommendation Systems

Ignore Me But Don't Replace Me: Utilizing Non-Linguistic Elements for Pretraining on the Cybersecurity Domain

no code implementations15 Mar 2024 Eugene Jang, Jian Cui, Dayeon Yim, Youngjin Jin, Jin-Woo Chung, Seungwon Shin, YongJae lee

We use our domain-customized methodology to train CyBERTuned, a cybersecurity domain language model that outperforms other cybersecurity PLMs on most tasks.

Language Modelling token-classification +1

NFTs to MARS: Multi-Attention Recommender System for NFTs

no code implementations13 Jun 2023 Seonmi Kim, Youngbin Lee, Yejin Kim, Joohwan Hong, YongJae lee

Recommender systems have become essential tools for enhancing user experiences across various domains.

Graph Attention Multi-Task Learning +1

Mean-Variance Efficient Collaborative Filtering for Stock Recommendation

no code implementations11 Jun 2023 Munki Chung, YongJae lee, Woo Chang Kim

In this regard, we propose a mean-variance efficient collaborative filtering (MVECF) model for stock recommendations that consider both aspects.

Collaborative Filtering Computational Efficiency +1

DarkBERT: A Language Model for the Dark Side of the Internet

no code implementations15 May 2023 Youngjin Jin, Eugene Jang, Jian Cui, Jin-Woo Chung, YongJae lee, Seungwon Shin

Recent research has suggested that there are clear differences in the language used in the Dark Web compared to that of the Surface Web.

Language Modelling

MF-NeRF: Memory Efficient NeRF with Mixed-Feature Hash Table

1 code implementation25 Apr 2023 YongJae lee, Li Yang, Deliang Fan

Neural radiance field (NeRF) has shown remarkable performance in generating photo-realistic novel views.

Benchmarking

Shedding New Light on the Language of the Dark Web

no code implementations NAACL 2022 Youngjin Jin, Eugene Jang, YongJae lee, Seungwon Shin, Jin-Woo Chung

By leveraging CoDA, we conduct a thorough linguistic analysis of the Dark Web and examine the textual differences between the Dark Web and the Surface Web.

text-classification Text Classification

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