Search Results for author: Won-Yong Shin

Found 28 papers, 9 papers with code

Turbo-CF: Matrix Decomposition-Free Graph Filtering for Fast Recommendation

1 code implementation22 Apr 2024 Jin-Duk Park, Yong-Min Shin, Won-Yong Shin

In this paper, we propose Turbo-CF, a GF-based CF method that is both training-free and matrix decomposition-free.

Collaborative Filtering

Collaborative Filtering Based on Diffusion Models: Unveiling the Potential of High-Order Connectivity

1 code implementation22 Apr 2024 Yu Hou, Jin-Duk Park, Won-Yong Shin

A recent study has shown that diffusion models are well-suited for modeling the generative process of user-item interactions in recommender systems due to their denoising nature.

Collaborative Filtering Computational Efficiency +2

Energy-Efficient Edge Learning via Joint Data Deepening-and-Prefetching

no code implementations19 Feb 2024 Sujin Kook, Won-Yong Shin, Seong-Lyun Kim, Seung-Woo Ko

The vision of pervasive artificial intelligence (AI) services can be realized by training an AI model on time using real-time data collected by internet of things (IoT) devices.

MONET: Modality-Embracing Graph Convolutional Network and Target-Aware Attention for Multimedia Recommendation

1 code implementation15 Dec 2023 Yungi Kim, Taeri Kim, Won-Yong Shin, Sang-Wook Kim

In this paper, we focus on multimedia recommender systems using graph convolutional networks (GCNs) where the multimodal features as well as user-item interactions are employed together.

Multimedia recommendation

Propagate & Distill: Towards Effective Graph Learners Using Propagation-Embracing MLPs

no code implementations29 Nov 2023 Yong-Min Shin, Won-Yong Shin

Although this can be achieved by applying the inverse propagation $\Pi^{-1}$ before distillation from the teacher, it still comes with a high computational cost from large matrix multiplications during training.

Knowledge Distillation Node Classification

Unveiling the Unseen Potential of Graph Learning through MLPs: Effective Graph Learners Using Propagation-Embracing MLPs

no code implementations20 Nov 2023 Yong-Min Shin, Won-Yong Shin

Although this can be achieved by applying the inverse propagation $\Pi^{-1}$ before distillation from the teacher GNN, it still comes with a high computational cost from large matrix multiplications during training.

Graph Learning Knowledge Distillation +1

Node Feature Augmentation Vitaminizes Network Alignment

no code implementations25 Apr 2023 Jin-Duk Park, Cong Tran, Won-Yong Shin, Xin Cao

Network alignment (NA) is the task of discovering node correspondences across multiple networks.

Computational Efficiency

A Unified Framework for Exploratory Learning-Aided Community Detection Under Topological Uncertainty

no code implementations10 Apr 2023 Yu Hou, Cong Tran, Ming Li, Won-Yong Shin

In social networks, the discovery of community structures has received considerable attention as a fundamental problem in various network analysis tasks.

Community Detection Computational Efficiency

DATa: Domain Adaptation-Aided Deep Table Detection Using Visual-Lexical Representations

no code implementations12 Nov 2022 Hyebin Kwon, Joungbin An, Dongwoo Lee, Won-Yong Shin

More specifically, after pre-training one of state-of-the-art vision-based models as our backbone network, we re-train our augmented model, consisting of the vision-based model and the multilayer perceptron (MLP) architecture.

Domain Adaptation Table Detection

FiFo: Fishbone Forwarding in Massive IoT Networks

no code implementations2 Nov 2022 Hayoung Seong, Junseon Kim, Won-Yong Shin, Howon Lee

Massive Internet of Things (IoT) networks have a wide range of applications, including but not limited to the rapid delivery of emergency and disaster messages.

PAGE: Prototype-Based Model-Level Explanations for Graph Neural Networks

1 code implementation31 Oct 2022 Yong-Min Shin, Sun-Woo Kim, Won-Yong Shin

Aside from graph neural networks (GNNs) attracting significant attention as a powerful framework revolutionizing graph representation learning, there has been an increasing demand for explaining GNN models.

Computational Efficiency Graph Classification +1

Graph Anomaly Detection with Graph Neural Networks: Current Status and Challenges

no code implementations29 Sep 2022 Hwan Kim, Byung Suk Lee, Won-Yong Shin, Sungsu Lim

Graphs are used widely to model complex systems, and detecting anomalies in a graph is an important task in the analysis of complex systems.

Graph Anomaly Detection Graph Classification +2

META-CODE: Community Detection via Exploratory Learning in Topologically Unknown Networks

no code implementations23 Aug 2022 Yu Hou, Cong Tran, Won-Yong Shin

The discovery of community structures in social networks has gained considerable attention as a fundamental problem for various network analysis tasks.

Community Detection

Grad-Align+: Empowering Gradual Network Alignment Using Attribute Augmentation

no code implementations23 Aug 2022 Jin-Duk Park, Cong Tran, Won-Yong Shin, Xin Cao

Network alignment (NA) is the task of discovering node correspondences across different networks.

Attribute

Two-Stage Deep Anomaly Detection with Heterogeneous Time Series Data

no code implementations10 Feb 2022 Kyeong-Joong Jeong, Jin-Duk Park, Kyusoon Hwang, Seong-Lyun Kim, Won-Yong Shin

We introduce a data-driven anomaly detection framework using a manufacturing dataset collected from a factory assembly line.

Anomaly Detection Time Series +2

On the Power of Gradual Network Alignment Using Dual-Perception Similarities

1 code implementation26 Jan 2022 Jin-Duk Park, Cong Tran, Won-Yong Shin, Xin Cao

Network alignment (NA) is the task of finding the correspondence of nodes between two networks based on the network structure and node attributes.

SiReN: Sign-Aware Recommendation Using Graph Neural Networks

1 code implementation19 Aug 2021 Changwon Seo, Kyeong-Joong Jeong, Sungsu Lim, Won-Yong Shin

In recent years, many recommender systems using network embedding (NE) such as graph neural networks (GNNs) have been extensively studied in the sense of improving recommendation accuracy.

Network Embedding Recommendation Systems

Joint Mobile Charging and Coverage-Time Extension for Unmanned Aerial Vehicles

no code implementations27 Jun 2021 Soohyun Park, Won-Yong Shin, Minseok Choi, Joongheon Kim

To overcome this, we need to characterize a new type of drones, so-called charging drones, which can deliver energy to MBS drones.

Scheduling

IM-META: Influence Maximization Using Node Metadata in Networks With Unknown Topology

no code implementations5 Jun 2021 Cong Tran, Won-Yong Shin, Andreas Spitz

Since the structure of complex networks is often unknown, we may identify the most influential seed nodes by exploring only a part of the underlying network, given a small budget for node queries.

Edgeless-GNN: Unsupervised Representation Learning for Edgeless Nodes

1 code implementation12 Apr 2021 Yong-Min Shin, Cong Tran, Won-Yong Shin, Xin Cao

We study the problem of embedding edgeless nodes such as users who newly enter the underlying network, while using graph neural networks (GNNs) widely studied for effective representation learning of graphs.

Network Embedding

An Improved Approach for Estimating Social POI Boundaries With Textual Attributes on Social Media

no code implementations18 Dec 2020 Cong Tran, Dung D. Vu, Won-Yong Shin

It has been insufficiently explored how to perform density-based clustering by exploiting textual attributes on social media.

Clustering

DeepNC: Deep Generative Network Completion

1 code implementation17 Jul 2019 Cong Tran, Won-Yong Shin, Andreas Spitz, Michael Gertz

In this paper, we present DeepNC, a novel method for inferring the missing parts of a network based on a deep generative model of graphs.

Link Prediction

Clustering-Based Collaborative Filtering Using an Incentivized/Penalized User Model

no code implementations1 May 2019 Cong Tran, Jang-Young Kim, Won-Yong Shin, Sang-Wook Kim

As collaborative filtering (CF) is one of the most prominent and popular techniques used for recommender systems, we propose a new clustering-based CF (CBCF) method using an incentivized/penalized user (IPU) model only with ratings given by users, which is thus easy to implement.

Clustering Collaborative Filtering +1

A Personalized Preference Learning Framework for Caching in Mobile Networks

no code implementations15 Apr 2019 Adeel Malik, Joongheon Kim, Kwang Soon Kim, Won-Yong Shin

Under our model, we consider a single-hop-based device-to-device (D2D) content delivery protocol and characterize the average hit ratio for the following two file preference cases: the personalized file preferences and the common file preferences.

Collaborative Filtering

Improved Density-Based Spatio--Textual Clustering on Social Media

no code implementations14 Jun 2018 Minh D. Nguyen, Won-Yong Shin

DBSCAN may not be sufficient when the input data type is heterogeneous in terms of textual description.

Clustering

DIR-ST$^2$: Delineation of Imprecise Regions Using Spatio--Temporal--Textual Information

no code implementations9 Jun 2018 Cong Tran, Won-Yong Shin, Sang-Il Choi

To overcome these problems, we present DIR-ST$^2$, a novel framework for delineating an imprecise region by iteratively performing density-based clustering, namely DBSCAN, along with not only spatio--textual information but also temporal information on social media.

Clustering

Community Detection in Partially Observable Social Networks

no code implementations30 Dec 2017 Cong Tran, Won-Yong Shin, Andreas Spitz

The discovery of community structures in social networks has gained significant attention since it is a fundamental problem in understanding the networks' topology and functions.

Community Detection

Cannot find the paper you are looking for? You can Submit a new open access paper.