• 제목/요약/키워드: limited search area method

검색결과 28건 처리시간 0.031초

Retrieval of Legal Information Through Discovery Layers: A Case Study Related to Indian Law Libraries

  • Kushwah, Shivpal Singh;Singh, Ritu
    • Journal of Information Science Theory and Practice
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    • 제4권3호
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    • pp.71-83
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    • 2016
  • Purpose. The purpose of this paper is to analyze and evaluate discovery layer search tools for retrieval of legal information in Indian law libraries. This paper covers current practices in legal information retrieval with special reference to Indian academic law libraries, and analyses its importance in the domain of law.Design/Methodology/Approach. A web survey and observational study method are used to collect the data. Data related to the discovery tools were collected using email and further discussion held with the discovery layer/ tool /product developers and their representatives.Findings. Results show that most of the Indian law libraries are subscribing to bundles of legal information resources such as Hein Online, JSTOR, LexisNexis Academic, Manupatra, Westlaw India, SCC web, AIR Online (CDROM), and so on. International legal and academic resources are compatible with discovery tools because they support various standards related to online publishing and dissemination such as OAI/PMH, Open URL, MARC21, and Z39.50, but Indian legal resources such as Manupatra, Air, and SCC are not compatible with the discovery layers. The central index is one of the important components in a discovery search interface, and discovery layer services/tools could be useful for Indian law libraries also if they can include multiple legal and academic resources in their central index. But present practices and observations reveal that discovery layers are not providing facility to cover legal information resources. Therefore, in the present form, discovery tools are not very useful; they are an incomplete and half solution for Indian libraries because all available Indian legal resources available in the law libraries are not covered.Originality/Value. Very limited research or published literature is available in the area of discovery layers and their compatibility with legal information resources.

Improving Remedial Measures from Incident Investigations: A Study Across Ghanaian Mines

  • Theophilus Joe-Asare;Eric Stemn
    • Safety and Health at Work
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    • 제15권1호
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    • pp.24-32
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    • 2024
  • Background: Learning from incidents for accident prevention is a two-stage process, involving the investigation of past accidents to identify the causal factors, followed by the identification and implementation of remedial measures to address the identified causal factors. The focus of past research has been on the identification of causal factors, with limited focus on the identification and implementation of remedial measures. This research begins to contribute to this gap. The motivation for the research is twofold. First, previous analyses show the recurring nature of accidents within the Ghanaian mining industry, and the causal factors also remain the same. This raises questions on the nature and effectiveness of remedial measures identified to address the causes of past accidents. Secondly, without identifying and implementing remedial measures, the full benefits of accident investigations will not be achieved. Hence, this study aims to assess the nature of remedial measures proposed to address investigation causal factors. Method: The study adopted SMARTER from business studies with the addition of HMW (H - Hierarchical, M - Mapping, and W - Weighting of causal factors) to analyse the recommendations from 500 individual investigation reports across seven different mines in Ghana. Results: The individual and the work environment (79%) were mostly the focused during the search for causes, with limited focus on organisational factors (21%). Forty eight percentage of the recommendations were administrative, focussing on fixing the problem in the immediate affected area or department of the victim(s). Most recommendations (70.4%) were support activities that only enhance the effectiveness of control but do not prevent/mitigate the failure directly. Across all the mines, there was no focus on evaluating the performance of remedial measures after their implementation. Conclusion: Identifying sharp-end causes leads to proposing weak recommendations which fail to address latent organisational conditions. The study proposed a guide for effective planning and implementation of remedial actions.

다중 레벨 양자화 기법을 적용한 오디오 핑거프린트 추출 방법 (Audio Fingerprint Extraction Method Using Multi-Level Quantization Scheme)

  • 송원식;박만수;김회린
    • 한국음향학회지
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    • 제25권4호
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    • pp.151-158
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    • 2006
  • 본 논문은 필립스의 음악 검색 기법을 기반으로 필터 뱅크 에너지 변화량과 음악의 통계적인 특성을 이용한 오디오 핑거프린트 추출 방법을 제안하였다. 기존의 필립스 방식은 제한된 주파수 영역을 너무 많은 필터 뱅크로 분할하여 분석함으로써 밴드들 사이에 연계성 및 왜곡에 대한 민감도가 증가하는 특징을 보일 수 있다. 제안된 방법은 필터 뱅크의 밴드 수를 줄여 왜곡에 대한 강인성을 증진시키고, 필터 뱅크 에너지의 변화량의 부호와 크기 정보를 통계적 특성을 고려한 양자화 기법을 이용해 2비트로 할당함으로써 오디오 핑거프린트의 고유성을 확보하였다. 추출된 2비트는 4개의 레벨로 정보를 표현함으로 각 레벨 사이에 연계성이 존재하게 된다. 이 같은 레벨 사이의 연계성은 유사도 측정 시 이용될 뿐만 아니라 오디오 핑거프린트를 기준으로 검색 영역을 확장하는 제안된 방식에서는 효율적인 검색 영역을 선택할 수 있는 정보로 활용 되었다. 제안된 방식은 다양한 주변 잡음환경 (거리, 백화점, 자동차, 사무실, 식당)에서의 실험을 통하여 주변 잡음에 강인한 특성을 보일 뿐만 아니라 검색 속도 또한 향상되는 특징을 보였다.

e-Business기업의 핵심역량 집중화전의에 관한 연구 - FGP를 이용한 접근법 - (A Study on the Concentration Strategy of an E-Business Firm to its Core Competence - Approach by the Fuzzy Goal Programming -)

  • 황봉기;김종순
    • 산학경영연구
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    • 제15권
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    • pp.99-114
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    • 2002
  • 최근에 e-Business에 관한 여러 가지 사업모델이 발표되고 있다. 그러나 각자의 사업환경이 상이하기 때문에 각각 주어진 여건에 적합한 사업모델이 요구된다. 즉, 자본의 규모, 기술력, 정보수집능력과 정보량, 이익이나 목표고객 등의 여건을 고려한 e-Business모델을 개발할 필요성이 있다. e-Business 기업의 가치를 창출하는 방법은 여러 가지가 있을 수 있다. 그 중에서도 기업의 핵심역량을 강화하여 일부분만 성장 발전시키는 방법이 있을 수 있다. 이는 기업의 제한된 제약조건하에 상대적 경쟁우위에 있는 핵심역량부분에 차별적으로 집중하기 위한 적정 생산 투자수준을 찾아내는 문제로 전환하여 투자의 우선 순위를 모색할 수도 있을 것이다. 본 연구는 불명확한 정보를 이용하여 의사결정을 할 때 효과적으로 투자 우선 순위를 결정하기 위한 방법을 제안하고 있다. 그 방법으로써 FGP(fuzzy goal programming)문제에 대한 허용공차를 최소화하는 모형을 제시한다.

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Diversity and distribution of goby-fry fish in Tomini Bay, Gorontalo, Indonesia

  • Femy M. Sahami;Sri Nuryatin Hamzah;Philippe Keith;Sitty Ainsyah Habibie
    • Fisheries and Aquatic Sciences
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    • 제27권5호
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    • pp.294-305
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    • 2024
  • Tomini Bay in Gorontalo offers significant potential for amphidromous goby-fry, a group of fish found in at least five estuaries in the area, namely Bone-Bolango, Paguyaman, Bilungala, Tombulilato, and Taludaa Estuaries. Preliminary results were limited to only two locations in estuarine waters, namely the Bone-Bolango and Paguyaman rivers. Further exploration of goby-fry species in various locations within Tomini Bay is essential to enhance knowledge about the abundance and aid conservation efforts. Therefore, this study identified the goby-fry species and created their distribution map in the waters of Tomini Bay Gorontalo. The samples used were obtained from daily catches of fishermen in the five estuaries during the recruitment period from February to September 2022. These samples were categorized based on their morphological similarities and specific melanophore patterns. Distinct groups with different melanophore patterns from those previously reported were identified as newly recorded species, photographed, and described in terms of their morphology. Furthermore, two specimens from each newly recorded species underwent molecular identification using the cytochrome oxidase subunit 1 (COI) gene for DNA amplification and were analyzed through the Basic Local Alignment Search Tool (BLAST) method. The phylogenetic tree was constructed using the Maximum Likelihood Method. The results showed the existence of nongoby-fry species caught together with goby fry school. A total of 75,881 goby-fry and 1,687 nongoby-fry were successfully collected. Among the goby-fry species, 13 were identified, including three new records, namely Eleotris fusca (Forster, 1801), Sicyopterus microcephalus (Bleeker, 1855), and Sicyopus zosterophorus (Bleeker, 1856). This study also documented the existence of nongoby-fry species, namely Anguilla celebesensis (Kaup, 1856), Moringua microchir (Bleeker, 1853), and Microphis leiaspis (Bleeker, 1854). It significantly contributed to the understanding of fish biodiversity in Tomini Bay.

LR-WPAN에서 비주기적 전송 패턴을 갖는 임펄스 기반의 TOA 추정 기법 (Impulse Based TOA Estimation Method Using Non-Periodic Transmission Pattern in LR-WPAN)

  • 박운용;박철웅;홍윤기;최성수;이원철
    • 한국통신학회논문지
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    • 제33권4A호
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    • pp.352-360
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    • 2008
  • 최근 IEEE (Institute of Electrical and Electronics Engineers) 802.15.4a TG (Task Group)에서는 저소비, 저전력 뿐만 아니라 다수개의 피코넷이 공존하는 즉, SOPs (simultaneously operating piconets) 환경하에서 거리 인지가 가능하도록 규정하고 있으며 거리인지 (ranging)의 서비스에 따라 Ternary 코드를 이용한 coherent/non-coherent 방안이 표준으로 채택되었다. 그러나 표준안에서 제시된 최소의 펄스 간 간격(Pulse Repetition Interval; PRI)은 채널의 최대 초과 지연 aximum Excess Delay; MED) 보다 좁아 펄스 간 간섭 (Inter-Pulse Interference; IPI) 문제가 발생되어 DS(Direct Sequence) 기반의 추정기법으로는 부정확한 최초 도착 시간(Time Of Arrival; TOA)을 얻게 된다. 따라서 본 논문에서는 IPI을 줄이면서 고정밀 TOA를 추정하기 위한 비주기적 펄스 전송 (non-periodic transmission; NPT) 패턴 기법을 제안한다. 수신단은 저속 무선 개인 영역 네트워크의 모티브를 고려하여 에너지 검출을 이용한 non-coherent 기반의 수신 구조로 구성하였다. TOA 정보는 슬라이딩 상관처리 후 역 탐색 구간 (Search Back Window; SBW)을 두어 오차를 감소시키고 사전 정해진 임계치를 이용하여 얻기 된다. 제안된 펄스 패턴 기법에 대한 성능을 검증하기 위해서 BEE 802.15.4a TG에서 제시한 두 가지 채널 모델을 적용하였고 시뮬레이션 결과로부터 제안된 기법이 다수개의 피코넷이 공존하는 다중 경로 환경에서 일반적인 기법보다 성능이 개선됨을 확인하였다.

대학도서관 정보사서의 정보서비스 효율성 평가 (An Evaluation for Effectiveness of Information Services by Reference Librarians at College and University Libraries in Korea)

  • 한상완
    • 한국문헌정보학회지
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    • 제13권
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    • pp.95-119
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    • 1986
  • The objective of this study is to search for a theoretical and practical solution to the question of what is the most effective and qualitative method of information service for the college and university libraries in Korea. Assuming the maximum service or total service theory in information services, therefore, it appears natural that the subject specialist who is highly knowledgeable in his subject is indispensable in raising the quality of information librarians. The procedure of this research was as follows: There was no college and university library employing any full-time subject spceialist in Korea. This research, however, was proceeded on the assumption that subject specialists are already employed in all of the college and university libraries after the subject specialist system is established. The least qualification of subject specialist is limited, based on the criteria given by the foreign literature, to those who have master's degree in Library Science and bachelor's degree in any other subject area, those who have bacholor's degree in Library Science and master's degree in any other subject area, or those who have both bacholor's and master's degrees in Library Science with minor in any subject field . To prove the research hypothesis that the subject specialist will perform his role more efficiently than the generalist in effectively providing information service based on both accuracy and speed, this research as an obtrusive testing method analyzed the effectiveness by presenting information questions to the generalists and subject specialists who are information librarians in college and university libraries. For this study 20 librarians working at 12 university libraries were tested for performance levels of information services. The result showed $59.75\%$ an absolute performance rate and $75.20\%$ an adjust performance rate. Compared to Thomas Childer's 1970 study in which he used the unobtrusive testing method, these results were $5\%$ higher in the absolute performance rate and $11.36\%$ higher in the adjust performance rate. In comparing the generalist with the subject specialist in efficiency of information service, while the absolute performance rate was $57.08\%$ and the adjust performance rate was $73.08\%$ in the case of the generalist, the absolute rate was $63.75\%$ and the adjust rate was $78.38\%$ in the case of specialist, therefore, the efficiency of the subject specialist was $6.67\%$ higher in the absolute performance rate and $5.30\%$ higher in the adjust performance rate than that of generalist. But the factor of speediness was excluded from the analysis because of the difference between the time the interviewers recorded and the time the interviewee recorded. On the basis of the result of this research, it should be desirable to educate subject specialists and employ them as information librarians and for them to function as efficient subject specialists in order to improve the effectiveness of information services, the nucleus of the raison d'etre of college and university libraries.

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저전력 임베디드 소프트웨어 개발을 위한 재사용 컴포넌트의 전력소모 특성 명세 방법 (Energy Characteristic Specification Method of Reusable Component for Energy Efficient Embedded Software Development)

  • 김두환;이재욱;홍장의
    • 소프트웨어공학소사이어티 논문지
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    • 제24권2호
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    • pp.55-66
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    • 2011
  • 컴포넌트 기반 개발 방법론은 개발 편의성, 개발에 소요되는 시간, 비용 등의 이점으로 인해 그 적용 영역이 확대되고 있다. 특히 일반적인 소프트웨어에 비해 플랫폼 의존성이 높고, 제품 군(product family) 개발이 가능한 임베디드 소프트웨어의 경우 컴포넌트 기반 개발은 그 유용성이 매우 높다고 할 수 있다. 그 중에서도 스마트 폰, 태블릿 PC 등과 같은 휴대형 임베디드 시스템의 경우, 전력 소모량이 적은 소프트웨어 개발의 중요성이 부각되고 있기 때문에 재사용 컴포넌트의 소모 전력에 대한 특성은 컴포넌트 기반 개발에서 고려되어야 할 중요한 품질요소 중의 하나가 되었다. 본 연구에서는 재사용 기반의 임베디드 소프트웨어 개발 시, 컴포넌트에 대한 소모전력 특성을 고려할 수 있도록 지원하기 위하여 소모전력 특성을 포함하는 컴포넌트 명세언어를 제안한다. 이는 추후 컴포넌트 저장소에서 소모전력 특성을 고려하는 컴포넌트 검색 및 선택 등과 같은 영역에서 활용할 수 있다.

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