Search Results for author: Sanghyun Kim

Found 9 papers, 2 papers with code

Slot-Mixup with Subsampling: A Simple Regularization for WSI Classification

no code implementations29 Nov 2023 Seongho Keum, Sanghyun Kim, Soojeong Lee, Juho Lee

Due to the lack of patch-level labels, multiple instance learning (MIL) is a common practice for training a WSI classifier.

Multiple Instance Learning

Towards Safe Self-Distillation of Internet-Scale Text-to-Image Diffusion Models

1 code implementation12 Jul 2023 Sanghyun Kim, Seohyeon Jung, Balhae Kim, Moonseok Choi, Jinwoo Shin, Juho Lee

Large-scale image generation models, with impressive quality made possible by the vast amount of data available on the Internet, raise social concerns that these models may generate harmful or copyrighted content.

Image Generation

Machine-Learning-Based Classification of GPS Signal Reception Conditions Using a Dual-Polarized Antenna in Urban Areas

no code implementations6 May 2023 Sanghyun Kim, Jiwon Seo

Consequently, when the testing dataset was collected at different locations from the training dataset, a classification accuracy of 64. 47% was obtained, which was slightly higher than the accuracy of the existing method using dual single-polarized antennas.

Relational Context Learning for Human-Object Interaction Detection

1 code implementation CVPR 2023 Sanghyun Kim, Deunsol Jung, Minsu Cho

Recent state-of-the-art methods for HOI detection typically build on transformer architectures with two decoder branches, one for human-object pair detection and the other for interaction classification.

Decoder Human-Object Interaction Detection +3

Devil's on the Edges: Selective Quad Attention for Scene Graph Generation

no code implementations CVPR 2023 Deunsol Jung, Sanghyun Kim, Won Hwa Kim, Minsu Cho

The edge selection module selects relevant object pairs, i. e., edges in the scene graph, which helps contextual reasoning, and the quad attention module then updates the edge features using both edge-to-node and edge-to-edge cross-attentions to capture contextual information between objects and object pairs.

Graph Generation Object +1

Machine Learning-Based GPS Multipath Detection Method Using Dual Antennas

no code implementations6 Apr 2022 Sanghyun Kim, Jungyun Byun, Kwansik Park

In this study, we proposed a machine learning approach for global positioning system (GPS) multipath detection that uses dual antennas.

BIG-bench Machine Learning Classification

GPS Multipath Detection Based on Carrier-to-Noise-Density Ratio Measurements from a Dual-Polarized Antenna

no code implementations21 Aug 2021 Sanghyun Kim, Halim Lee, Kwansik Park

In this study, the global positioning system (GPS) multipath detection was performed based on the carrier-to-noise-density ratio, C/N0, measured through a dual-polarized antenna.

Enhanced Accuracy Simulator for a Future Korean Nationwide eLoran System

no code implementations13 Aug 2021 Joon Hyo Rhee, Sanghyun Kim, Pyo-Woong Son, Jiwon Seo

Once its operational performance is determined to be satisfactory, South Korea plans to move to the second phase of the program, which is a nationwide eLoran system.

Motion Planning by Reinforcement Learning for an Unmanned Aerial Vehicle in Virtual Open Space with Static Obstacles

no code implementations24 Sep 2020 Sanghyun Kim, Jongmin Park, Jae-Kwan Yun, Jiwon Seo

In this study, we applied reinforcement learning based on the proximal policy optimization algorithm to perform motion planning for an unmanned aerial vehicle (UAV) in an open space with static obstacles.

Motion Planning reinforcement-learning +1

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