• Title/Summary/Keyword: object type

Search Result 1,437, Processing Time 0.025 seconds

Resolving the Runtime Class Reference Problem of the Type Object Design Pattern by Type Object Class (Type Object Class에 의한 Type Object 디자인 패턴의 런타임 클래스 참조문제의 해결)

  • Kim, Yun-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.11 no.3
    • /
    • pp.500-506
    • /
    • 2007
  • The Type Object Design Pattern is proposed to provide a solution on the situation in the case that one class has too many subclasses or the number of subclasses are undefined. Although this pattern has many advantages in terms of applicability and dynamic object behavior, it has a weak point in runtime pattern operation that it has to build and maintain a class reference mechanism in runtime to reference the class (de facto 'object') of instances. To solve that problem, this paper addresses the solution of the runtime class reference problem of Type Object Pattern. it defines a new class of Type Object Class (TOC) from Type Class and Object Class in Type Object pattern and presents the methods of creating, compiling, and memory-loading the TOC. It depends on built-in class reference mechanism of object-oriented programming language, and is not necessary to fit with the additional mechanism. Consequently, we need not to set up the additional class reference mechanism and system performance is enhanced due to it.

Object-Based Operating System (OBJECT에 의한 운영체제의 구성에 대한 연구)

  • 이창수
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.8 no.1
    • /
    • pp.23-29
    • /
    • 1983
  • This paper describes object-based operating system to suppeor relability and abstract data type. For reliability, all objects should be accessed through access rights in capability, and the protection domain is provided for all program modules such that efficient domain switching can be achieved. For abstract data type, type manager is provided.

  • PDF

Effects of Pride, Object Relevance and Message Type on Brand Attitude (메시지 유형의 브랜드태도효과에서 자긍심을 느낀 소비자의 객체관련성의 역할)

  • Choi, Nak-Hwan
    • Journal of Distribution Science
    • /
    • v.15 no.6
    • /
    • pp.57-64
    • /
    • 2017
  • Purpose - The purpose of this study is to investigate the effect of brand message type on the object relevance between consumers and brands and to identify the mediation role of the object relevance in the effect of the message type on brand attitude. Research design, data, and methodology - Types of pride are classified into hubristic pride and authentic pride, and brand message types are divided into ability message and warmth message. Restaurant brand was selected by empirical study, and the experiment was performed with 2 (pride type: hubristic versus authentic) × 2 (message type: ability message versus warmth message) between-subjects design. The subjects of the experiment consisted of the undergraduates taking courses related to marketing. A preliminary step was taken to explore the difference in the perceived level of object relevance induced from each type of message between the consumer group that felt hubristic pride and the other group that felt authentic pride. This study analyzed the mediating role of the object relevance in the effects of the message type on brand attitude by means of Bootstrap method for each of the pride groups. Results - The results from the empirical analysis are summed up as follows. Regardless of pride types they felt in advance, consumers perceived their object relevance to be higher in the warmth information message than in the ability information message, and object relevance was analyzed to have a positive effect on brand attitude. It was analyzed that, regardless of pride types, object relevance played full mediation roles in the effect of warmth information versus ability information message on brand attitude. Conclusions - Based on the results, it may be suggested that marketers of a brand should endeavor to develop a warmth information message rather than a ability information message to prompt consumers to perceive the object relevance between their own brands and consumers, regardless of pride types, as long as a consumer feels pride in advance. In order to increase the consumers' attitude toward their brand, the brand marketers are solicited to check the object relevance between their brand and consumers, then, seek for the managerial ways to promote such object relevance.

Comparison of User Interaction Alternatives in a Tangible Augmented Reality Environment (감각형 증강현실 기반 상호작용 대안들의 비교)

  • Park, Sang-Jin;Jung, Ho-Kyun;Park, Hyungjun
    • Korean Journal of Computational Design and Engineering
    • /
    • v.17 no.6
    • /
    • pp.417-425
    • /
    • 2012
  • In recent years, great attention has been paid to using simple physical objects as tangible objects to improve user interaction in augmented reality (AR) environments. In this paper, we address AR-based user interaction using tangible objects, which has been used as a key component for virtual design evaluation of engineered products including digital handheld products. We herein consider the use of two types (product-type and pointer-type) of tangible objects. The user creates input events by touching specified parts of the product-type object with the pointer-type object, and the virtual product reacts to the events by rendering its visual and auditory contents on the output devices. The product-type object is used to reflect the geometric shape of a product of interest and to determine its position and orientation in the AR environment. The pointer-type object is used to recognize the reference position of the pointer (or finger) in the same environment. The rapid prototype of the product is employed as a good alternative to the product-type object, but various alternatives to the pointer-type object can be considered according to fabrication process and touching mechanism. In this paper, we present four alternatives to the pointer-type object and investigate their strong and weak points by performing experimental comparison of their various aspects including interaction accuracy, task performance, and qualitative user experience.

A design concept on object database of measurement data for building a safety management network of road bridges (도로 교량의 안전관리 네트워크 구축을 위한 계측자료의 객체 데이터베이스 설계 개념)

  • Park, Sang-Il;An, Hyun-Jung;Kim, Hoy-Jin;Lee, Sang-Ho
    • Proceedings of the Computational Structural Engineering Institute Conference
    • /
    • 2008.04a
    • /
    • pp.518-523
    • /
    • 2008
  • In this study, we analyzed applicability of object database, designed the concept model based on object-oriented idea for measurement data management, and applied the design model to object database. The concept model composes three sub models Infrastructure managing information model, Infrastructure measurement data model, and Measurement unit model. The process to expand measurement data of new type was executed easily without changing database schema in object database. The process to expand measurement data of new type was executed easily without changing database schema in object database. Therefore, applicability of new technology to infrastructures for building a safety management network of road bridges could be increased with object database system.

  • PDF

Deriving the Properties of Object Types for Research Data Relation Model

  • Kim, Suntae
    • Journal of Information Science Theory and Practice
    • /
    • v.1 no.2
    • /
    • pp.84-92
    • /
    • 2013
  • In this study, the properties of the object types required to describe the relationship among research data resources, which may be generated during the life cycle of the research, are derived. The properties of Fedora Commons and DSpace, which are open source software used for resource management, and schema properties published in DataCite were analyzed. Based on relation names of Fedora Commons, nine new relation names were derived. Thirty-eight object type properties consolidating the target properties of the analysis were derived. The result of this study can be used as basic material for crosswalk research studies of object type relation terms to ensure interoperability among the systems.

Images of Korean Traditional Patterns according to Category, Interpretation Type, Composition Type, and Application Object (한국전통문양의 종류, 표현유형, 구성형식 및 적용대상에 따른 감성이미지)

  • 장수경;김재숙
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.24 no.2
    • /
    • pp.214-225
    • /
    • 2000
  • The objective of this study was to investigate images of Korean traditional patterns. The subjects consisted of 369 male and 356 female undergraduate students. The experimental materials used in this study were 48 stimuli and questionnaires, composed of 7-point semantic differential scales of 23 bipolar adjectives. Twelve motifs selected from 3 groups of Korean patterns were used as motif stimuli. Twelve repeated patterns were constructed from them to be applied on a CAD-simulated dress. The data was analyzed by factor analysis, ANOVA, Duncan's multiple range test. The major findings were as follows: 1. Four dimensions were emerged accounting for the dimensional structure of the images of Korean traditional patterns. These dimensions were 'simplicity', 'quality', 'interest', and 'modernity' dimension. Among them, 'simplicity' and 'quality' were the major dimensions. 2. Category, interpretation type, composition type, and application object of motif had significant effects on the images of above-mentioned dimensions. The application object had a significant effect on 'simplicity' and 'modernity' image, and the composition type on 'quality' and 'interest' image.

  • PDF

A Study on the Object-based Classification Method for Wildfire Fuel Type Map (산불연료지도 제작을 위한 객체기반 분류 방법 연구)

  • Yoon, Yeo-Sang;Kim, Youn-Soo;Kim, Yong-Seung
    • Aerospace Engineering and Technology
    • /
    • v.6 no.1
    • /
    • pp.213-221
    • /
    • 2007
  • This paper showed how to analysis the object-based classification for wildfire fuel type map using Hyperion hyperspectral remote sensing data acquired in April, 2002 and compared the results of the object-based classification with the results of the pixel-based classification. Our methodological approach for wildfire fuel type map firstly processed correcting abnormal pixels and atypical bands and also calibrating atmospheric noise for enhanced image quality. Fuel type map is characterized by the results of the spectral mixture analysis(SMA). Object-based approach was based on segment-based endmember selection, while pixel-based method used standard SMA. To validate and compare, we used true-color high resolution orthoimagery.

  • PDF

Knowledge-Based Approach for an Object-Oriented Spatial Database System (지식기반 객체지향 공간 데이터베이스 시스템)

  • Kim, Yang-Hee
    • Journal of Intelligence and Information Systems
    • /
    • v.9 no.3
    • /
    • pp.99-115
    • /
    • 2003
  • In this paper, we present a knowledge-based object-oriented spatial database system called KOBOS. A knowledge-based approach is introduced to the object-oriented spatial database system for data modeling and approximate query answering. For handling the structure of spatial objects and the approximate spatial operators, we propose three levels of object-oriented data model: (1) a spatial shape model; (2) a spatial object model; (3) an internal description model. We use spatial type abstraction hierarchies(STAHs) to provide the range of the approximate spatial operators. We then propose SOQL, a spatial object-oriented query language. SOQL provides an integrated mechanism for the graphical display of spatial objects and the retrieval of spatial and aspatial objects. To support an efficient hybrid query evaluation, we use the top-down spatial query processing method.

  • PDF

3-D Underwater Object Recognition Using PZT-Epoxy 3-3 Type Composite Ultrasonic Transducers (PZT-에폭시 3-3형 복합압전체 초음파 트랜스듀서를 사용한 3차원 수중 물체인식)

  • Cho, Hyun-Chul;Heo, Jin;SaGong, Geon
    • Journal of Sensor Science and Technology
    • /
    • v.10 no.6
    • /
    • pp.286-294
    • /
    • 2001
  • In this study, 3-D underwater object recognition using the self-made 3-3 type composite ultrasonic transducer and modified SOFM(Self Organizing Feature Map) neural network are investigated. Properties of the self-made 3-3 type composite specimens are satisfied considerably with requirements as an underwater ultrasonic transducer's materials. 3-D underwater all object's recognition rates obtained from both the training data and testing data in different objects, such as a rectangular block, regular triangular block, square block and cylinderical block, were 100% and 94.0%, respectively. All object's recognition rates are obtained by utilizing the self-made 3-3 type composite transducer and SOFM neural network. From the object recognition rates, it could be seen that an ultrasonic transducer fabricated with the self-made 3-3 type composite resonator will be able to have application for the underwater object recognition.

  • PDF