Search

Your search keyword '"Jeong, Dahye"' showing total 120 results
Start Over Author "Jeong, Dahye"
120 results on '"Jeong, Dahye"'

1. Preserving Old Memories in Vivid Detail: Human-Interactive Photo Restoration Framework

Author

Back, Seung-Yeon, Son, Geonho, Jeong, Dahye, Park, Eunil, and Woo, Simon S.

Subjects
Computer Science - Computer Vision and Pattern Recognition, Computer Science - Artificial Intelligence
Abstract

Photo restoration technology enables preserving visual memories in photographs. However, physical prints are vulnerable to various forms of deterioration, ranging from physical damage to loss of image quality, etc. While restoration by human experts can improve the quality of outcomes, it often comes at a high price in terms of cost and time for restoration. In this work, we present the AI-based photo restoration framework composed of multiple stages, where each stage is tailored to enhance and restore specific types of photo damage, accelerating and automating the photo restoration process. By integrating these techniques into a unified architecture, our framework aims to offer a one-stop solution for restoring old and deteriorated photographs. Furthermore, we present a novel old photo restoration dataset because we lack a publicly available dataset for our evaluation.

Published
2024

3. Covering Convex Polygons by Two Congruent Disks

Author

Choi, Jongmin, Jeong, Dahye, and Ahn, Hee-Kap

Subjects
Computer Science - Computational Geometry
Abstract

We consider the planar two-center problem for a convex polygon: given a convex polygon in the plane, find two congruent disks of minimum radius whose union contains the polygon. We present an $O(n\log n)$-time algorithm for the two-center problem for a convex polygon, where $n$ is the number of vertices of the polygon. This improves upon the previous best algorithm for the problem., Comment: 21 pages, 7 figures

Published
2021

22. Detecting agro : Korean trolling and clickbaiting behaviour in online environments.

Author

Been Choi, Eun, Kim, Jisu, Jeong, Dahye, Park, Eunil, and del Pobil, Angel P

Subjects
MACHINE learning, STREAMING video & television, GAZE
Abstract

This article presents one of the first approaches to provide the understanding of agro (one of the unique eye-attracting cues) headlines and thumbnails in online video sharing platform, YouTube. We annotated 1881 headlines and thumbnails, based on agro and the type of agro. Then, we experimented with machine learning models to classify agro data from the non- agro data. With a bidirectional long short-term memory (Bi-LSTM) model, we achieved 84.35% of accuracy in detecting agro headlines and 82.80% of accuracy in detecting agro thumbnails. We believe that the automatic detection of agro headlines can allow users to have better experience in browsing through and getting the content that they want online. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

33. Antecedents of Consumer Adoption of Over-the-Top Services in South Korea.

Author

Jeong, Dahye, Lee, Minyoung, and Park, Eunil

Subjects
*DIFFUSION of innovations theory, *CONSUMERS, *CONFIRMATORY factor analysis, *STRUCTURAL equation modeling, *TECHNOLOGY Acceptance Model
Abstract

This study aims to explore South Korean consumers' adoption of over-the-top (OTT) services, which are one of the most innovative media services available today. We employed two user-oriented approaches – the diffusion of innovation theory and the technology acceptance model – to propose an integrated consumer acceptance model for OTT services. We analyzed online survey data from 1,302 South Korean users of OTT services. Both structural equation modeling and confirmatory factor analysis methods indicated that OTT's perceived compatibility, observability, and trialability based on the diffusion of innovation theory, and its perceived usefulness based on the technology acceptance model, are key determinants of consumer attitude toward OTT services, which are significantly correlated with their intention to use these services. Based on this study's findings, several implications and research directions were presented, considering both the applicability and significance of the proposed research model. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

39. Comparative analyses of plasma amyloid-β levels in heterogeneous and monomerized states by interdigitated microelectrode sensor system

Author

Kim, YoungSoo, primary, Yoo, Yong Kyoung, additional, Kim, Hye Yun, additional, Roh, Jee Hoon, additional, Kim, Jinsik, additional, Baek, Seungyeop, additional, Lee, Jinny Claire, additional, Kim, Hye Jin, additional, Chae, Myung-Sic, additional, Jeong, Dahye, additional, Park, Dongsung, additional, Lee, Sejin, additional, Jang, HoChung, additional, Kim, Kyeonghwan, additional, Lee, Jeong Hoon, additional, Byun, Byung Hyun, additional, Park, Su Yeon, additional, Ha, Jeong Ho, additional, Lee, Kyo Chul, additional, Cho, Won Woo, additional, Kim, Jae-Seung, additional, Koh, Jae-Young, additional, Lim, Sang Moo, additional, and Hwang, Kyo Seon, additional

Published
2019
Full Text
View/download PDF

47. Gintonin modulates platelet function and inhibits thrombus formation via impaired glycoprotein VI signaling.

Author

Irfan, Muhammad, Jeong, Dahye, Saba, Evelyn, Kwon, Hyuk-Woo, Shin, Jung-Hae, Jeon, Bo-Ra, Kim, Suk, Kim, Sung-Dae, Lee, Dong-Ha, Nah, Seung-Yeol, and Rhee, Man Hee

Subjects
*THROMBIN receptors, *MITOGEN-activated protein kinases, *BLOOD platelet aggregation, *BLOOD platelet activation, *GINSENG, *WESTERN immunoblotting
Abstract

Panax ginseng (P. ginseng), one of the most valuable medicinal plants, is known for its healing and immunobooster properties and has been widely used in folk medicine against cardiovascular diseases, including stroke and heart attack. In this study, we explored the anti-platelet activity of gintonin (a recently discovered non-saponin fraction of ginseng) against agonist-induced platelet activation. In vitro effects of gintonin on agonist-induced human and rat platelet aggregation, granule secretion, integrin αIIbβ3 activation, and intracellular calcium ion ([Ca2+]i) mobilization were examined. Western blot analysis and immunoprecipitation techniques were used to estimate the expression of mitogen-activated protein kinases (MAPKs) and phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) and interaction of glycoprotein VI (GPVI) signaling pathway molecules such as Src family kinases (SFK), tyrosine kinase Syk, and PLCγ2. In vivo effects were studied using acute pulmonary thromboembolism model in mice. Gintonin remarkably inhibited collagen-induced platelet aggregation and suppressed granule secretion, [Ca2+]i mobilization, and fibrinogen binding to integrin αIIbβ3 in a dose-dependent manner and clot retraction. Gintonin attenuated the activation of MAPK molecules and PI3K/Akt pathway. It also inhibited SFK, Syk, and PLCγ2 activation and protected mice from thrombosis. Gintonin inhibited agonist-induced platelet activation and thrombus formation through impairment in GPVI signaling molecules, including activation of SFK, Syk, PLCγ2, MAPK, and PI3K/Akt; suggesting its therapeutic potential against platelet related CVD. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results