Hyunsik Yang

Author Correction: High inter-rater reliability in consensus diagnoses and overall assessment in the Asian Cohort for Alzheimer’s Disease Study

Yara Alkhodair, Ging‐Yuek Robin Hsiung, Boon Lead Tee, Pei‐Chuan Ho et autres

In the original version of this article, authors Helena C. Chui and Tiffany W. Chow were listed only under “The Clinical Core of the Asian Cohort for Alzheimer’s Disease (ACAD)” consortium; they have now also been included in the main author group. …

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High inter-rater reliability in consensus diagnoses and overall assessment in the Asian Cohort for Alzheimer’s Disease Study

Yara Alkhodair, Ging‐Yuek Robin Hsiung, Pei‐Chuan Ho, Wai Haung Yu et autres

The Asian Cohort for Alzheimer's Disease (ACAD) study is a collaborative investigation of genetic and non-genetic risk factors for AD among Asian Americans and Canadians. Harmonization of diagnostic procedures across recruiting sites will be key to the dataset's efficacy. Forty-two participants who …

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Design and Implementation of Machine Learning-Based Fault Prediction System in Cloud Infrastructure

Hyunsik Yang, Younghan Kim

The method for ensuring availability in an existing cloud environment is primarily a metric-based fault detection method. However, the existing fault detection method makes it difficult to configure the environment as the cloud size increases and becomes more complex, and it is …

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Dynamic Policy Management System for High Availability in a Multi-site Cloud

Mai Quang Hiep, Hyunsik Yang, Younghan Kim

Edge computing promises to improve the network operational cost and improve the quality of service by pushing computation resources to the network edge. Each edge cloud consists of heterogeneous servers. The Service Function Chain deployed in Edge sites needs to be flexible …

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Design and Implementation of Fast Fault Detection in Cloud Infrastructure for Containerized IoT Services

Hyunsik Yang, Younghan Kim

The container-based cloud is used in various service infrastructures as it is lighter and more portable than a virtual machine (VM)-based infrastructure and is configurable in both bare-metal and VM environments. The Internet-of-Things (IoT) cloud-computing infrastructure is also evolving from a VM-based …

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IBCS: Intent-Based Cloud Services for Security Applications

Jin‐Yong Kim, Eun‐Soo Kim, Jinhyuk Yang, Jaehoon Jeong et autres

As the number of network devices is increasing and they are highly connected, network attacks have become more complex and varied. To mitigate these attacks, multiple types of network security equipment are used in combination, requiring considerable security knowledge of each type …

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Usage Aware VNF Placement for Improved QoS in Edge Computing

Briytone Mutichiro, Hyunsik Yang, Younghan Kim

The advent of edge computing has given rise to new opportunities and challenges in the domain of cloud computing. While the key deliverable is to ensure reliable service provision to users, the characteristics of the edge cloud including high latency, unreliable bandwidth, …

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Design and Implementation of High-Availability Architecture for IoT-Cloud Services

Hyunsik Yang, Younghan Kim

For many vertical Internet of Things (IoT) applications, the high availability is very important. In traditional cloud systems, services are usually implemented with the same level of availability in which the fault detection and fault recovery mechanisms are not aware of service …

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Architecture for Virtual Network Function's High Availability in Hybrid Cloud Infrastructure

Hyunsik Yang, Cong-Phuoc Hoang, Younghan Kim

Currently, using Container technology to host network functions can leverage faster Virtual Network Function (VNF) installation and optimize resource utilization than Virtual Machine (VM) based virtualization technology. However, due to the limitation in security and performance, migrating all network functions to Container …

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Performance Analysis of CNI (Container Networking Interface) based Container Network

Youngki Park, Hyunsik Yang, Younghan Kim

The increasing significance of lightweight cloud infrastructure for microservices cannot be overstated. This has led many researchers to propose container based virtualized computing services. Specifically, for networks, Container Networking Interface technologies are proposed to connect heterogeneous network services between virtual-machine based clouds …

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Implementation of VNFC monitoring driver in the NFV architecture

Hyunsik Yang, Briytone Mutichiro, Younghan Kim

Network function virtualization (NFV) is one of the promising technologies for the next-generation network. In the NFV environment, reliability and availability should be guaranteed at different levels through the use of monitoring frameworks; however, the current monitoring frameworks only focus on NFV …

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Application and Comparison of Data Plane Acceleration Technologies for NFV

Youngki Park, Hyunsik Yang, Young Han Kim

본 논문에서 오픈스택을 NFVI(Network Functions Virtualization Infrastructure)를 위한 VIM(Virtualized Infrastructure Manager)으로 사용하는 환경에서 NFV기반의 데이터평면의 가속화를 위해 일반적인 네트워크 기술 및 SR-IOV, DPDK, FD.io와 같은 패킷가속화 기술을 적용하여 성능을 비교 분석 하였다. 실험구성은 두개의 컴퓨트 노드와 한 개의 컨트롤러 구조로 구성하고 네트워크 …