• Title/Summary/Keyword: 재식별화

Search Result 96, Processing Time 0.022 seconds

A Component Refinement Technique in Initial Component Design Stage (초기 컴포넌트 설계 단계에서 컴포넌트 정제 기법)

  • 이종국;백종현
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 2004.10b
    • /
    • pp.331-333
    • /
    • 2004
  • 컴포넌트 기반 소프트웨어 공학은 재사용 가능한 컴포넌트를 조립하여 시스템을 개발하는 방법이다. 컴포넌트가 시스템 개발에서 효과를 발휘하기 위해서는 컴포넌트를 설계, 구현하기 위한 다양한 기법들이 제시되어야 한다. 컴포넌트 설계 기법은 아키텍처 설계 컴포넌트 식별, 컴포넌트 정제, 컴포넌트 설계 상세화로 나눌 수 있다. 이 중에서 컴포넌트 정제는 컴포넌트의 특성을 가장 많이 반영하는 기법이며 어떤 기법을 사용하는가에 따라 컴포넌트 기반 시스템의 품질이 달라진다. 본 논문에서는 개발 생산성에 중점을 두고 컴포넌트를 정제하는 기법을 제시한다 특별히 컴포넌트 사이의 관계를 최적화하는 기법을 제시한다

  • PDF

Trends of Music Service and Technology (음악 서비스 및 관련 기술 동향)

  • Lee, S.J.;Kim, S.M.;Kim, J.H.;Yoo, W.Y.
    • Electronics and Telecommunications Trends
    • /
    • v.26 no.2
    • /
    • pp.148-158
    • /
    • 2011
  • 음악은 인간의 사상과 감정을 표현하는 예술로 인간의 문명이 시작되는 순간부터 인간의 삶과 밀접한 관계를 유지하며 발전하고 있다. 이러한 음악은 IT 기술의 발달과 함께 새로운 서비스 형태로 진화하고 있다. 음악 시장은 DRM-free와 음악 저작권 보호 강화에 따라 유료화가 정착하고 있으며, 음악 식별 기술과 분류 기술을 적용한 검색 및 추천 서비스를 바탕으로 빠르게 변모하고 있다. 본 동향에서는 국내외 음악 서비스 동향과 함께 음악 서비스 관련 기술 동향을 살펴본다.

  • PDF

Video Analysis System for Action and Emotion Detection by Object with Hierarchical Clustering based Re-ID (계층적 군집화 기반 Re-ID를 활용한 객체별 행동 및 표정 검출용 영상 분석 시스템)

  • Lee, Sang-Hyun;Yang, Seong-Hun;Oh, Seung-Jin;Kang, Jinbeom
    • Journal of Intelligence and Information Systems
    • /
    • v.28 no.1
    • /
    • pp.89-106
    • /
    • 2022
  • Recently, the amount of video data collected from smartphones, CCTVs, black boxes, and high-definition cameras has increased rapidly. According to the increasing video data, the requirements for analysis and utilization are increasing. Due to the lack of skilled manpower to analyze videos in many industries, machine learning and artificial intelligence are actively used to assist manpower. In this situation, the demand for various computer vision technologies such as object detection and tracking, action detection, emotion detection, and Re-ID also increased rapidly. However, the object detection and tracking technology has many difficulties that degrade performance, such as re-appearance after the object's departure from the video recording location, and occlusion. Accordingly, action and emotion detection models based on object detection and tracking models also have difficulties in extracting data for each object. In addition, deep learning architectures consist of various models suffer from performance degradation due to bottlenects and lack of optimization. In this study, we propose an video analysis system consists of YOLOv5 based DeepSORT object tracking model, SlowFast based action recognition model, Torchreid based Re-ID model, and AWS Rekognition which is emotion recognition service. Proposed model uses single-linkage hierarchical clustering based Re-ID and some processing method which maximize hardware throughput. It has higher accuracy than the performance of the re-identification model using simple metrics, near real-time processing performance, and prevents tracking failure due to object departure and re-emergence, occlusion, etc. By continuously linking the action and facial emotion detection results of each object to the same object, it is possible to efficiently analyze videos. The re-identification model extracts a feature vector from the bounding box of object image detected by the object tracking model for each frame, and applies the single-linkage hierarchical clustering from the past frame using the extracted feature vectors to identify the same object that failed to track. Through the above process, it is possible to re-track the same object that has failed to tracking in the case of re-appearance or occlusion after leaving the video location. As a result, action and facial emotion detection results of the newly recognized object due to the tracking fails can be linked to those of the object that appeared in the past. On the other hand, as a way to improve processing performance, we introduce Bounding Box Queue by Object and Feature Queue method that can reduce RAM memory requirements while maximizing GPU memory throughput. Also we introduce the IoF(Intersection over Face) algorithm that allows facial emotion recognized through AWS Rekognition to be linked with object tracking information. The academic significance of this study is that the two-stage re-identification model can have real-time performance even in a high-cost environment that performs action and facial emotion detection according to processing techniques without reducing the accuracy by using simple metrics to achieve real-time performance. The practical implication of this study is that in various industrial fields that require action and facial emotion detection but have many difficulties due to the fails in object tracking can analyze videos effectively through proposed model. Proposed model which has high accuracy of retrace and processing performance can be used in various fields such as intelligent monitoring, observation services and behavioral or psychological analysis services where the integration of tracking information and extracted metadata creates greate industrial and business value. In the future, in order to measure the object tracking performance more precisely, there is a need to conduct an experiment using the MOT Challenge dataset, which is data used by many international conferences. We will investigate the problem that the IoF algorithm cannot solve to develop an additional complementary algorithm. In addition, we plan to conduct additional research to apply this model to various fields' dataset related to intelligent video analysis.

Logical Structure Analysis of Topic-specific Web Documents (특정 주제 웹문서의 논리적 구조 분석)

  • 이민형;이경호
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 2004.04b
    • /
    • pp.157-159
    • /
    • 2004
  • 본 논문에서는 웹 문서를 XML 문서로 변환하기 위한 논리적 구조분석 방법을 제안한다. 제안된 방법은 비주얼 그룹화, 요소 식별, 그리고 논리적 그룹화의 세 단계로 구성된다. 특히 정교한 수준의 논리적 구조분석을 지원하기 위하여 특정 주제에 속하는 문서 유형의 논리적 계층 구조를 효과적으로 기술할 수 있는 문서 모델을 정의한다. 제안된 방법은 비주얼 그룹화를 통해서 추출된 시각적 계층구조와 문서 유형에 대한 논리적 구조 정보를 기술한 문서 모델에 기반하기 때문에 보다 정교한 수준의 구조 분석을 지원한다. 제안된 방법의 성능을 평가하기 위하여 웹으로부터 추출한 다수의 HTML 문서를 대상으로 실험한 결과, 기존 연구라 비교하여 논리적 구조분석을 성공적으로 수행하였다. 제안된 방법은 논리적 구조분석의 최종 결과로서 XML 문서를 생성하기 때문에 문서의 재 사용성을 높인다.

  • PDF

Instructions for Transition from OO Object Model to Component-Based Model (객체지향 객체 모델의 컴포넌트 모델 전환 지침)

  • Yoo, Young-Ran;Kim, Soo-Dong
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2000.04a
    • /
    • pp.741-744
    • /
    • 2000
  • 소프트웨어의 재사용성을 높일 수 있는 기법으로 객체보다 더 큰 재사용 단위인 컴포넌트 기반의 개발에 학계와 업계의 관심이 집중되고 있다. 객체지향 방식으로 구현된 모델들은 정보 은폐과 캡슐화를 지원함으로서 응집도 높은 객체들의 집합으로 컴포넌트를 식별하는 작업이 자연스러운 장점이 있다. 그러나 객체가 다른 객체들과 관계와 상속 등으로 연결되는 반면에, 컴포넌트는 컴포넌트들 사이의 인터페이스 호출에 의한 의존도만 나타나며 기본적으로 상호 독립적이다. 따라서 객체지향 모델을 컴포넌트 기반의 모델로 전환 시, 기존의 관계와 상속들을 컴포넌트의 인터페이스로 추출하여 제거하는 작업이 요구된다. 본 논문에서는 객체지향의 객체 모델을 컴포넌트 기반의 객체 모델로 전환 시 예상되는 문제점들을 해결하기 위한 실무적인 지침들을 제안하고자 한다.

  • PDF

A Study on ECC Re-Encryption Mechanism for The RFID System (RFID 시스템을 위한 ECC 재 암호화 기법 연구)

  • Kim, Kap-Yol;Park, Seok-Cheon
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2008.05a
    • /
    • pp.1069-1072
    • /
    • 2008
  • RFID 시스템은 유비쿼터스 환경을 구축하기 위한 핵심적 기술로 유일한 사물 식별 기술로 각광받고 있다. 현재 국내에서도 물류 시스템, 유통, 고속도로 톨게이트 등 각 산업 분야에 RFID 시스템을 적용 하여 성공적인 운영을 하고 있으며 이로 인한 인건비 절감, 수송 비용 절감, 교통 체증 감소 등 부가적인 효과를 얻고 있다. 따라서 향후 더욱더 RFID 시스템을 이용한 각 산업 분야 적용은 늘어 날것으로 예상되며 특히 유비쿼터스 사회의 도래로 인한 개인화 특수 목적 서비스에 대한 적용에 큰 효과를 가져 올 것으로 기대 한다. 그러나 RFID 시스템은 하드웨어적 구성이 단순하여 보안에 대한 문제점을 드러내고 있으며 이러한 문제점을 해결하기 위해 본 논문에서는 모바일 컴퓨팅 시스템에 최적화 된 암호 알고리즘인 ECC 알고리즘을 이용한 재 암호화 기법을 제안한다.

Visualization of Self-Healing Function of Protective Coating for Concrete (콘크리트 보호코팅재의 자기치유 기능의 시각화)

  • Kim, Dong-Min;Choi, Ju-Young;Jin, Seung-Won;Nam, Kyeong-Nam;Park, Hyeong-Joo;Chung, Chan-Moon
    • Journal of Convergence for Information Technology
    • /
    • v.9 no.10
    • /
    • pp.87-93
    • /
    • 2019
  • Microcapsules were prepared by using a mixture of linseed oil and a small amount of fluorescent fluid as a core material. Self-healing protective coatings were prepared by applying coating formulations containing varying amounts of microcapsules on mortar surface. After scratch or crack was generated in the coating, when the damaged region was exposed to ultraviolet light (${\lambda}=365nm$), it was observed that fluorescence emission area increased with increasing microcapsule loading. In the cases of the self-healing coatings having 20wt% or more microcapsule loading, the damaged region was almost filled with the healing agent. In water sorptivity test, the self-healing coating having 20wt% or more microcapsule loading showed a healing efficiency of about 85%. The fluorescence emission from the damaged region was easily observed at a distance of 3 m. The self-healing protective coating is expected to be useful to confirm its self-healing function with the eye.

Constructing an Open Source Based Software System for Reusable Module Extraction (재사용 모듈 추출을 위한 오픈 소스 기반 소프트웨어 시스템 구축)

  • Byun, Eun Young;Park, Bokyung;Jang, Woosung;Kim, R. Young Chul;Son, Hyun Seung
    • KIISE Transactions on Computing Practices
    • /
    • v.23 no.9
    • /
    • pp.535-541
    • /
    • 2017
  • Today, the scale of the computer software market has increased, and massive sized software has been developed to satisfy diverse requirements. In this context, software complexity is increasing and the quality of software is becoming more difficult to manage. In particular, software reuse is important for the improvement of the environments of legacy systems and new system development. In this paper, we propose a method to reuse modules that are certified by quality. Reusable levels are divided into code area (method, class, and component), project domain, and business levels. Based on the coupling and cohesion of software complexity, we propose a reusable module extraction mechanism with reusability metrics, which constructs a visualization of the "reusable module's chunk" based on the method and class levels. By applying reverse engineering to legacy projects, it is possible to identify reusable modules/objects/chunks. If these modules/objects/chunks are to be reused to develop an extension system or similar new system, we need to ensure software reliability in order to reduce the time and cost of software development.

An Approach to Developing Domain Architecture Based on Variability Analysis in Software Product Line (소프트웨어 프로덕트 라인에서 가변성 분석을 통한 도메인 아키텍처 개발 방법)

  • Moon, Mi-Kyeong;Yeom, Keun-Hyuk
    • Journal of KIISE:Software and Applications
    • /
    • v.34 no.4
    • /
    • pp.328-341
    • /
    • 2007
  • When the decision to initiate a software product line has been taken, the first step is the domain analysis describing the variability in the requirements, the second important step is the definition of a domain architecture that captures the overall structure of a series of closely related products. A domain architecture can be a core asset in product line by describing the commonalities and variabilities of the products contained in the software product line. The variabilities, which are identified at each phase of the core assets development, are diverse in the level of abstraction. Therefore, it is important to clearly define, systematically identify, and explicitly represent variability at the architectural level. However, it is difficult to identify and represent the variability which should be considered at the architecture level, because these may be appeared in architecture elements and in architecture configuration. In this paper, we suggest a method of developing domain architecture as a core asset in product line where commonality and variability are explicitly considered. First of all, we will describe a domain architecture metamodel that can explicitly define commonality and variability concepts by extending the Object Management Group's ($OMG^{TM}$ Reusable Asset Specification eRAS) model. Using the domain architecture metamodel, architecture elements are defined and the variations that can be identified at the architecture level are classified into two types in according th abstract level. Additionally, we describe a domain architecture where commonality and variability are explicitly considered on basis of this metamodel.

Ontology-based Positioning Systems for Indoor LBS (온톨로지 기반의 실내 LBS를 위한 위치 추적 시스템)

  • Hwang, Chi-Gon;Yoon, Chang-Pyo
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.20 no.6
    • /
    • pp.1123-1128
    • /
    • 2016
  • Recently BLE beacon has been widely used as a method for measuring the indoor location in the IoT Technique. But it requires a filtering technique for the measurement of the correct position. It is used the most fixed beacon. It is not accurate that calculates the position information through the identification of the beacon signal. Therefore, filtering is important. So it takes a lot of time, position measurement and filtering. Thus, we is to measure the exact position at the indoor using a mobile beacon. The measured beacon signal is composed of an ontology for reuse in the same pattern. RSSI is measured the receiver is the distance of the beacon. And this value configure the location ontology to be normalized by the relationship analysis between the values. The ontology is a method for calculating the position information of the moving beacon. It can detect fast and accurate indoor position information and provide the service.