• Title/Summary/Keyword: 주변화

Search Result 2,261, Processing Time 0.033 seconds

Reranking Clusters based on Query Term Position and Context (질의의 위치와 문맥을 반영한 클러스터 기반 재순위화)

  • Jo, Seung-Hyeon;Jang, Gye-Hun;Lee, Kyung-Soon
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2010.04a
    • /
    • pp.471-474
    • /
    • 2010
  • 질의와 질의 주변에 나오는 어휘는 의미적으로 연관되어있다는 가정하에 질의뿐만 아니라 질의 주변에 나오는 문맥 어휘들도 가중치를 높여준다면 검색에 효율을 높일 수 있을 것이다. 본 논문에서는 질의와 질의 주변에 나오는 문맥 어휘들에게 가중치를 주어 질의 어휘의 위치 가중치를 반영한 문서를 표현하고, 위치 가중치가 반영된 문서 벡터들 사이의 유사도를 계산하여 클러스터 기반 재순위화를 하여 성능을 향상시키는 방법을 제안한다. 뉴스 집합인 TREC AP 문서를 이용하여 언어모델, 위치 가중치를 이용한 언어모델, 클러스터 기반 재순위화 모델의 비교실험을 통해 유효성을 검증한다.

A Novel Side-Peak Cancellation Method for BOC Signal Synchronization (BOC 신호 동기화를 위한 새로운 주변 첨두 제거 기법)

  • Kim, Sang-Hun;Yoon, Tae-Ung;Lee, Young-Yoon;Han, Tae-Hee;Yoon, Seok-Ho
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.34 no.1C
    • /
    • pp.131-137
    • /
    • 2009
  • Binary offset carrier (BOC) signal synchronization is one of the most important steps to recover the transmitted information in global navigation satellite systems (GNSS) including Galileo and global positioning system (GPS). Generally, BOC signal synchronization is based on the correlation between the received and locally generated BOC signals. Thus, the multiple side-peaks in BOC autocorrelation are one of the main error sources in synchronizing BOC signals. Recently, a novel correlation function with reduced side-peaks was proposed for BOC signal synchronization by Julien [8]; however, Julien's correlation function not only still has the side-peaks, but also is only applicable to sine phased BOC(n, n), where n is the ratio of the pseudo random noise (PRN) code rate to 1.023 MHz. In this paper, we propose a new correlation function for BOC signal synchronization, which does not have any side-peaks and is applicable to general types of BOC signals, sine/cosine phased BOC(kn, n), where k is the ratio of a PRN chip duration to the period of a square wave sub-carrier used in BOC modulation. In addition, an efficient correlator structure is presented for generating the proposed correlation function.

A New CBOC Correlation Function for Next Generation GNSS Signal Synchronization (차세대 GNSS 신호 동기화를 위한 새로운 CBOC 상관함수)

  • Lee, Young-Po;Yoon, Tae-Ung;Lee, Myung-Soo;Lee, Young-Yoon;Kim, Sang-Hun;Yoon, Seok-Ho
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.34 no.7C
    • /
    • pp.724-729
    • /
    • 2009
  • Binary offset carrier (BOC) signal synchronization is based on the correlation between the received and locally generated BOC signals. Thus, the multiple side-peaks in BOC autocorrelation are one of the main error sources in synchronizing BOC signals. Recently, new correlation functions with no side-peak were proposed for sine and cosine phased BOC signal synchronization, respectively, by the authors [3]. In this paper, we propose a new correlation function with no side-peak for composite BOC (CBOC) signals by using the similar approach to that in the previous work.

Foreign Immigrants' Recognition on Related Policies and Supporting Activities (외국인 이주자의 관련 정책 및 지원활동에 관한 인식)

  • Choi, Byung-Doo;Kim, Yeung-Keung
    • Journal of the Korean association of regional geographers
    • /
    • v.17 no.4
    • /
    • pp.357-380
    • /
    • 2011
  • This paper is, first of all, to explore what kinds of character are implied in Korean policies and support programme for foreign immigrants, secondly to analyze immigrants' recognition on them in terms of their types and dwelling places, and finally to suggest some measures to improve policies and support programme. Policies for foreign immigrants are often classified into three models of assimilation, of differential exclusion, and of multiculturalism, but the marginalization of foreign immigrants is suggested either as a new model or as implied in all of those models. As a result of questionary survey, it is found out that foreign immigrants, irrelevant to their type, recognize their policies as mixing those characters. Finally, multiculturalism with distributive equality and recognition justice to overcome marginationalization, network governance for foreign immigrant policies to reflect their needs and participation, and sustainable and multicultural programmes for improving regional identity, ensuring covil rights, supporting comprehensive welfare, and multicultural education are suggested as measures to improve foreign immigrants' quality of life.

  • PDF

The Conceptualization of Caring Justice and an Evaluation of Long-Term Care Policy in Korea (돌봄정의(Caring Justice) 개념구성과 한국 장기요양정책의 평가)

  • Seok, Jae-Eun
    • 한국사회정책
    • /
    • v.25 no.2
    • /
    • pp.57-91
    • /
    • 2018
  • Despite the rapid growth of social care, understanding of care is segmental and caring is still marginalizing. The socialization of caring is actually a 'half-socialization' that is the result of injustice surrounding caring. Therefore, it is necessary to approach the problem of caring in terms of justice. In this paper, I discuss the limitations of social justice based on John Rawls 's social contract theory in the discussion of caring justice through feminists'writings on caring ethics. And then applying Nancy Fraser' s three scales of Justice-redistribution, recognition, and representation, the concept of caring justice has been newly constructed. The concept of caring is defined as a unified concept of caring including the aspect of the social rights of the care recipient as well as the labor rights of the care provider. Based on the analysis of care justice, we derive the ideal types of care policy and then evaluate the long-term care policy for the elderly, which is the central axis of Korean care policy. The results of this study are as follows: First, it is necessary to strengthen the labor rights of care providers especially for the socialization of care responsibilities and the proper allocation of social resources. Second, a service delivery system and care culture are needed to ensure the relational autonomy of care-receivers and care-givers for caring ethics and individualization of care. Third, the issue of care should be treated as the central agenda of politics in order to distribute care responsibility democratically and to distribute legitimate resources. This requires a paradigm shift from marginalization of care to mainstreaming of care. Ultimately, we should aim for a Caring Society.

재처리시설주변의 환경안전기술 고도화

  • 한국원자력산업회의
    • Nuclear industry
    • /
    • v.7 no.9 s.55
    • /
    • pp.66-70
    • /
    • 1987
  • 방사선량이 선량한도 이내인가를 확인하는 모니터링을 위한 앞으로의 과제는 임의의 데이터 처리기능 등 데이터관리의 고도화에 있다. 일본 동경사업소의 연구는 현행모니터링의 보충조사와 고도화, 대형재처리시설의 안전평가 방법 확립에 노력하고 있다.

  • PDF

과학논단-산업구조의 고도화와 기술개발

  • Lee, Jae-Yun
    • The Science & Technology
    • /
    • v.12 no.1 s.116
    • /
    • pp.36-43
    • /
    • 1979
  • 목차 3. 산업기술 개발전략 (1) 공업화 핵심기술개발 (2) 미래지향적 특화산업기술개발 (3) 공업화 주변기술의 개발 (4) 국책적 종합기술의 개발 4. 맺는 말

  • PDF

Numerical simulation of urban cooling effect by thermal environment of Lake area (호수주변지역의 열환경 변화에 따른 도시 냉각효과 수치모의)

  • 이화운;오은주;김민선
    • Proceedings of the Korea Air Pollution Research Association Conference
    • /
    • 2002.11a
    • /
    • pp.159-160
    • /
    • 2002
  • 도시가 개발됨에 따라 녹지 등의 자연지면이 포장지면으로 바뀌고, 대량의 열과 오염물질이 대기중으로 배출되고 있다. 그 결과 도시는 주변지역보다 온도가 높은 고온화 현상, 풍속의 감소와 함께 운량, 안개일수, 강수량의 변화, 지표면의 증발량 감소에 의한 상대습도의 저하 등의 도시의 고유한 기후특성을 가진다. 이러한 도시의 기후특성 중 가장 뚜렷한 특징은 기온의 고온화현상이다. (중략)

  • PDF

The research for the influence of air quality by the operation of the sweepings incinerator in Haeundae New Town (해운대 신시가지 종합처리장 내의 소각장 운전에 따른 대기질 영향의 조사)

  • 이영준;성봉조
    • Proceedings of the Korea Air Pollution Research Association Conference
    • /
    • 2001.11a
    • /
    • pp.371-372
    • /
    • 2001
  • 부산광역시 소재의 해운대 종합처리장(소각장, 하수처리장)운전에 따른 사후환경영향조사의 일환으로, 해운대 소각장 주변 반경 2km이내 영향 예상지역에 대한 대기질 조사로서 ⅰ) 아황산가스, 일산화탄소, 이산화질소, 오존 등의 대기환경기준항목 7가지, 알루미늄, 카드뮴, 크롬 등의 중금속류 8개 항목, 벤젠, 톨루엔 등의 휘발성유기화합물질 4개 항목에 대한 측정 및 분석을 실시하고, ⅱ) 종합처리장 주변의 대기질 실측조사를 통하여 나타난 자료를 바탕으로 향후 대기질에 의한 주변 환경상의 영향을 종합 분석하여 그 개선방안을 수립하고자 한다. (중략)

  • PDF