• 제목/요약/키워드: semantic relationships

검색결과 236건 처리시간 0.026초

군집과 위키피디아를 이용한 문서군집 (Document Clustering using Clustering and Wikipedi)

  • 박선;이성호;박희만;김원주;김동진;산드라 아벨;이성로
    • 한국정보통신학회:학술대회논문집
    • /
    • 한국정보통신학회 2012년도 추계학술대회
    • /
    • pp.392-393
    • /
    • 2012
  • 본 논문은 군집과 위키피디아(Wikipedia)를 이용하여 문서를 군집하는 새로운 방법을 제안한다. 제안된 방법은 비음수행렬분해를 이용하여 군집을 대표할 수 있는 군집 주제(topic)의 개념을 잘 표현할 수 있으며, 위키피디아의 동음이의어를 사용함으로써 문서와 군집 간의 의미관계를 고려하지 않는 용어집합(bag-of-words) 문제를 해결할 수 있다. 실험결과 제안방법을 적용한 문서군집방법이 다른 문서군집 방법에 비하여 좋은 성능을 보인다.

  • PDF

철학 디지털 지식 자원의 효과적인 구축 방향에 대한 연구 (A Study of Effective Creating Methods of Philosophy Digital Knowledge Resources)

  • 최병일;정현숙
    • 한국콘텐츠학회논문지
    • /
    • 제5권2호
    • /
    • pp.39-51
    • /
    • 2005
  • 철학의 연구는 과거의 연구 성과에 대한 지식을 축적하고 이를 재구성한 다음 새롭게 해석하는 과정이다. 철학 디지털 지식 자원은 연구 성과의 축적 및 검색을 지원함으로써 철학 연구에 있어서 필수 불가결한 요소가 되었다. 본 논문에서는 국내외 철학 디지털 지식 자원의 구축 현황에 대한 조사 결과를 소개하고 이들 철학 디지털 지식 자원이 가지는 문제점과 개선 방안에 대해 서술한다. 또한 온톨로지 데이터 모델인 토픽맵을 기반으로 철학 온톨로지를 구축함으로써 철학 지식의 계층적 및 연관적 관계 정의와 의미 기반 지식 검색이 가능함을 보인다.

  • PDF

기초학문자료 메타데이터 설계 분석 및 온톨로지 적용 방안 연구 (A Study on Design and Analysis of Metadata and Ontology based on Humanities and Social Sciences)

  • 이정연;김정민;최석두;김이겸
    • 한국문헌정보학회지
    • /
    • 제41권2호
    • /
    • pp.291-316
    • /
    • 2007
  • 기초학문자료의 특성인 복잡한 관계의 개념구조, 자료유형 및 자료간의 의미적 상관관계 등을 표현할 수 있는 기초학문자료 메타데이터 모형을 설계하였다. 설계된 메타데이터 모형의 정당성 및 효율성을 평가하기 위해 실제 구축된 자료의 분석을 토대로 실제적인 메타데이터 구성요소를 제시하였다. 메타데이터의 기반검색의 한계를 극복할 수 있는 확장된 시소러스를 설계하였으며 도메인 온톨로지를 구축하는 방안을 모색해 보았다. 또한 철학 종교학 분야의 주제분류 중심의 확장시소러스를 설계하고 토픽맵 기반 시스템으로 구현하여 주제 중심의 메타데이터 검색이 가능함을 보였다.

구조방정식을 이용한 소재의 구성특성, 질감 및 감성과 선호도간의 관계모형 (제1보) - 추동 여성 자켓용 소재의 무게 중심으로 - (Structural Equation Model(SEM) for Constituent Characteristics, Texture, Sensibility and Preference of Fabric (Part 1) - Weight of F/W Women's Jacket Fabrics -)

  • 노의경;유효선
    • 한국의류학회지
    • /
    • 제31권8호
    • /
    • pp.1240-1251
    • /
    • 2007
  • The purpose of this study was to examine the relationship between weight of fabrics and texture and sensibility and preference of consumers for F/W women's jacket fabrics. Structural Equation Model(SEM) using AMOS program was conducted to analyze the relationships. Then, this study aimed to provide useful information in planning designing fabrics through predicting the subjective characteristics analyzed. The main survey was developed the 7-point semantic differential scale of subjective texture, sensibility and preference. Fifty trained female panelists of 20-30 years old were participated and questionnaire method was used with 20 kind of fabric. The evaluation methods such as by the sense of sight & touch were used when fabrics were estimated subjectively. When evaluated by the sense of sight & touch, fabric's weight did not have effect directly on preference, but had effect indirectly on preference through the texture and the sensibility..

ValueRank: Keyword Search of Object Summaries Considering Values

  • Zhi, Cai;Xu, Lan;Xing, Su;Kun, Lang;Yang, Cao
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • 제13권12호
    • /
    • pp.5888-5903
    • /
    • 2019
  • The Relational ranking method applies authority-based ranking in relational dataset that can be modeled as graphs considering also their tuples' values. Authority directions from tuples that contain the given keywords and transfer to their corresponding neighboring nodes in accordance with their values and semantic connections. From our previous work, ObjectRank extends to ValueRank that also takes into account the value of tuples in authority transfer flows. In a maked difference from ObjectRank, which only considers authority flows through relationships, it is only valid in the bibliographic databases e.g. DBLP dataset, ValueRank facilitates the estimation of importance for any databases, e.g. trading databases, etc. A relational keyword search paradigm Object Summary (denote as OS) is proposed recently, given a set of keywords, a group of Object Summaries as its query result. An OS is a multilevel-tree data structure, in which node (namely the tuple with keywords) is OS's root node, and the surrounding nodes are the summary of all data on the graph. But, some of these trees have a very large in total number of tuples, size-l OSs are the OS snippets, have also been investigated using ValueRank.We evaluated the real bibliographical dataset and Microsoft business databases to verify of our proposed approach.

추상화 정보 데이터베이스 기반 협력적 질의 응답 (Cooperative Query Answering Based on Abstraction Database)

  • 허순영;이정환
    • 한국경영과학회지
    • /
    • 제24권1호
    • /
    • pp.99-117
    • /
    • 1999
  • Since query language is used as a handy tool to obtain information from a database, a more intelligent query answering system is needed to provide user-friendly and fault-tolerant human-machine Interface. Frequently, database users prefer less rigid querying structure, one which allows for vagueness in composing queries, and want the system to understand the intent behind a query. When there is no matching data available, users would rather receive approximate answers than a null information response. This paper presents a knowledge abstraction database that facilitates the development of such a fault-tolerant and intelligent database system. The proposed knowledge abstraction database adepts a multilevel knowledge representation scheme called the knowledge abstraction hierarchy(KAH), extracts semantic data relationships from the underlying database, and provides query transformation mechanisms using query generalization and specialization steps. In cooperation with the underlying database, the knowledge abstraction database accepts vague queries and allows users to pose approximate queries as well as conceptually abstract queries. Specifically. four types of vague queries are discussed, including approximate selection, approximate join, conceptual selection, and conceptual Join. A prototype system has been implemented at KAIST and is being tested with a personnel database system to demonstrate the usefulness and practicality of the knowledge abstraction database in ordinary database application systems.

  • PDF

텍스트 마이닝을 위한 그래프 기반 텍스트 표현 모델의 연구 동향 (A Study on Research Trends of Graph-Based Text Representations for Text Mining)

  • 장재영
    • 한국인터넷방송통신학회논문지
    • /
    • 제13권5호
    • /
    • pp.37-47
    • /
    • 2013
  • 텍스트 마이닝은 비정형화된 텍스트를 분석하여 그 안에 내재된 패턴, 추세, 분포 등의 고급정보들을 추출하는 분야이다. 텍스트 마이닝은 기본적으로 비정형 데이터를 가정하므로 텍스트를 단순화된 모델로 표현하는 것이 필요하다. 현재까지 가장 많이 사용되고 있는 모델은 텍스트를 단순한 단어들의 집합으로 표현한 벡터공간 모델이다. 그러나 최근 들어 단어들의 의미적 관계까지 표현하기 위해 그래프를 이용한 텍스트 표현 모델을 많이 사용하고 있다. 본 논문에서는 텍스트 마이닝을 위한 기존의 연구 중에서 그래프에 기반한 텍스트 표현 모델의 방법들과 그들의 특징들을 기술한다. 또한 그래프 기반 텍스트 마이닝의 향후 발전방향에 대해서도 논한다.

인도시원불탑(印度始原佛塔)의 의미론적(意味論的) 해석(解析) - 불탑건축의 전래와 양식에 관한 비교론적 고찰 I - (Semantic Analysis of Indian Original Stupa - A Comparative Study on the Transmission and Style of the Buddhist Pagoda I -)

  • 천득염
    • 건축역사연구
    • /
    • 제2권2호
    • /
    • pp.89-106
    • /
    • 1993
  • Wherever Buddhism has flourished, there were stupas in the form of monuments which have their origin in the tumulm of prehistoric times. After the death of Buddha, his body was cremated following the Indian funeral custom. His ashes, which long reserved for the remains of nobles and holymen, were enshrined under such artificial hills of earth and brick. The Stupa was in origin a simple burial-mound. The form of the burial-mound was a symbolical or magic reconstruction of the imagined shape of the sky, like a dome covering the earth. The domical form of the earliest tumuli may have been concious replicas of the shape of the Vedic hut. There are relationships which may have originally existed between the stupa and West Asiatic monuments. Buddhist Stupa originally cosisted of an almost hemispherical tumulus(anda) and an altar-like structure (harmika) on its top, surmounted by one or several superimposed honorific umbrellas (hti, catta). This hemispherical form is associated with centralisation, lunar worship, mother earth, and Siva. Anda means a symbol of latent creative power, the harmika symbolizes the sanctuary enthroned aboved the world. The honorific umbrella, as an abstract imitation of the shade-giving tree is one of the chief solar symbols and that of enlightenment.

  • PDF

Research trends related to childhood and adolescent cancer survivors in South Korea using word co-occurrence network analysis

  • Kang, Kyung-Ah;Han, Suk Jung;Chun, Jiyoung;Kim, Hyun-Yong
    • Child Health Nursing Research
    • /
    • 제27권3호
    • /
    • pp.201-210
    • /
    • 2021
  • Purpose: This study analyzed research trends related to childhood and adolescent cancer survivors (CACS) using word co-occurrence network analysis on studies registered in the Korean Citation Index (KCI). Methods: This word co-occurrence network analysis study explored major research trends by constructing a network based on relationships between keywords (semantic morphemes) in the abstracts of published articles. Research articles published in the KCI over the past 10 years were collected using the Biblio Data Collector tool included in the NetMiner Program (version 4), using "cancer survivors", "adolescent", and "child" as the main search terms. After pre-processing, analyses were conducted on centrality (degree and eigenvector), cohesion (community), and topic modeling. Results: For centrality, the top 10 keywords included "treatment", "factor", "intervention", "group", "radiotherapy", "health", "risk", "measurement", "outcome", and "quality of life". In terms of cohesion and topic analysis, three categories were identified as the major research trends: "treatment and complications", "adaptation and support needs", and "management and quality of life". Conclusion: The keywords from the three main categories reflected interdisciplinary identification. Many studies on adaptation and support needs were identified in our analysis of nursing literature. Further research on managing and evaluating the quality of life among CACS must also be conducted.

노스탤지어 관점에서의 한국 레트로 패션 문화 연구 -신문기사를 중심으로- (A Study on Retro Fashion Culture in South Korea from the Perspective of Nostalgia -A Focus on Newspapers-)

  • 정다울;하지수
    • 한국의류학회지
    • /
    • 제46권5호
    • /
    • pp.789-804
    • /
    • 2022
  • Retro fashion is emerging among young people as an approach to discovering a new meaning in Korea's historical culture. Research on Korea's unique retro fashion culture is required because there is no research on retro fashion culture based on Korea's historical background. Therefore, this study examined how retro fashion culture has progressed based on Korea's historical background from a nostalgic perspective. All retro-related newspaper articles from 1950 to 2020 were collected, and content analysis was conducted for each semantic unit. The results revealed that personal nostalgia is based on personal experience and is extending to younger generations. In terms of nostalgia in interpersonal relationships, the younger generation reinterpreted the fashion culture of the older generation after the 2010s. In terms of vicarious nostalgia, a retro culture reminiscent of the 1990s with a background in economic development and consumption culture appeared after 2012. The youth culture and university culture of the 1970s and 1980s were reinterpreted as street fashion. Since the late 2010s, the younger generation has been exhibiting cultural nostalgia, believing that the historical Korean culture is not outdated but has a unique heritage formed during the modernization process. Symbolic nostalgia appeared in Korean fashion culture during modernization.