• 제목/요약/키워드: Reuse

검색결과 2,858건 처리시간 0.03초

감독 지식을 융합하는 강화 학습 기법들에 대한 비교 연구 (A Comparison Study on Reinforcement Learning Method that Combines Supervised Knowledge)

  • 김성완;장형수
    • 한국정보과학회:학술대회논문집
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    • 한국정보과학회 2007년도 한국컴퓨터종합학술대회논문집 Vol.34 No.1 (C)
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    • pp.303-308
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    • 2007
  • 최근에 제안된 감독 지식을 융합하는 강화 학습 기법인 potential-based RL 기법의 효용성은 이론적 최적 정책으로의 수렴성 보장으로 증명되었고, policy-reuse RL 기법의 우수성은 감독지식을 융합하지 않는 기존의 강화학습과 실험적인 비교를 통하여 증명되었지만, policy-reuse RL 기법을 potential-based RL 기법과 비교한 연구는 아직까지 제시된 바가 없었다. 본 논문에서는 potential-based RL 기법과 policy-reuse RL 기법의 실험적인 성능 비교를 통하여 기법이 policy-reuse RL 기법이 policy-reuse RL 기법에 비하여 더 빠르게 수렴한다는 것을 보이며, 또한 policy-reuse RL 기법의 성능은 재사용하는 정책의 optimality에 영향을 받는다는 것을 보인다.

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양수저류시스템의 반복이용률 측정 (Measurement of Irrigation water-reuse ratio for pumped storage system)

  • 박지성;김영화;이영일;김필동
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 2003년도 학술발표논문집
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    • pp.295-298
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    • 2003
  • In this study, It classified type of irrigation water development in islands district. As result, the types which were type of reservior, fleshwater lake, pumped storage, ets. Most of islands district has developed reuse irrigation system as a pumped storage system. But, Irrigation water-reuse ratio doesn't define a basis clearly and the value of measurement for water-reuse ratio doesn't exist so far. so, we measured Irrigation water-reuse to clarify for water-reuse ratio in a pumped storage system.

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Scaling Reuse Detection in the Web through Two-way Boosting with Signatures and LSH

  • Kim, Jong Wook
    • 한국멀티미디어학회논문지
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    • 제16권6호
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    • pp.735-745
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    • 2013
  • The emergence of Web 2.0 technologies, such as blogs and wiki, enable even naive users to easily create and share content on the Web using freely available content sharing tools. Wide availability of almost free data and promiscuous sharing of content through social networking platforms created a content borrowing phenomenon, where the same content appears (in many cases in the form of extensive quotations) in different outlets. An immediate side effect of this phenomenon is that identifying which content is re-used by whom is becoming a critical tool in social network analysis, including expert identification and analysis of information flow. Internet-scale reuse detection, however, poses extremely challenging scalability issues: considering the large size of user created data on the web, it is essential that the techniques developed for content-reuse detection should be fast and scalable. Thus, in this paper, we propose a $qSign_{lsh}$ algorithm, a mechanism for identifying multi-sentence content reuse among documents by efficiently combining sentence-level evidences. The experiment results show that $qSign_{lsh}$ significantly improves the reuse detection speed and provides high recall.

pH Control for Dyebath Reuse in Dyeing of Polyamide with Binary Mixtures of Acid Dyes

  • Koh, Joonseok;Park, Sang Hyuck;Shim, Goo Hwan;Cho, Dae Hwan;Kim, Jae Pil
    • Fibers and Polymers
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    • 제5권2호
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    • pp.110-116
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    • 2004
  • Hydrolyzable organic esters were compared with ammonium sulphate as an acid donor for the pH control in dye-bath-reuse system of acid dyes mixtures. The ability of pH control, levelness, dyeing properties and reproducibility in dye-bath-reuse system were investigated comparatively. Hydrolyzable organic esters showed higher exhaustion and color yield than ammonium sulphate. In addition, hydrolyzable organic ester exhibited very low conductivity less than 0.5 mS, while ammonium sulphate give high conductivity. However, we could not observe any difference in levelness of dyed samples between two kinds of acid donors in laboratory scale dyeing. Over 10 cycles of reuse, hydrolyzable organic esters showed higher reproducibility than ammonium sulphate. No deterioration of the color fastness and levelness occurs over 10 cycles of reuse.

Spatial Reuse Algorithm Using Interference Graph in Millimeter Wave Beamforming Systems

  • Jo, Ohyun;Yoon, Jungmin
    • ETRI Journal
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    • 제39권2호
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    • pp.255-263
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    • 2017
  • This paper proposes a graph-theatrical approach to optimize spatial reuse by adopting a technique that quantizes the channel information into single bit sub-messages. First, we introduce an interference graph to model the network topology. Based on the interference graph, the computational requirements of the algorithm that computes the optimal spatial reuse factor of each user are reduced to quasilinear time complexity, ideal for practical implementation. We perform a resource allocation procedure that can maximize the efficiency of spatial reuse. The proposed spatial reuse scheme provides advantages in beamforming systems, where in the interference with neighbor nodes can be mitigated by using directional beams. Based on results of system level measurements performed to illustrate the physical interference from practical millimeter wave wireless links, we conclude that the potential of the proposed algorithm is both feasible and promising.

물재이용을 고려한 도시지역의 물순환 해석 (Analysis of Urban Water Cycle Considering Water Reuse Option)

  • 이지호;박기정;윤재영;유철상
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2007년도 학술발표회 논문집
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    • pp.1925-1928
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    • 2007
  • Water cycle analysis was performed for Gunja basin located in metropolitan Seoul using Aquacycle model in order to assess the problems of urban water cycle. From the water cycle analysis of Gunja basin, it was found that 75% of total rainfall occurred in the form of surface runoff, and groundwater recharge only accounted for about 7%. This suggests serious distortion of water cycle which can be attributed to urbanization. Feasibility analysis of reuse scenarios such as rainwater use and wastewater reuse was then performed to examine their influences on improving the water cycle. From the analysis of water reuse options, it was shown that imported water supply savings of 13% can be achieved through rainwater use, and water supply savings of 31% through wastewater reuse.

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한방병원 의료서비스품질이 관계품질, 고객만족, 재이용의도에 미치는 영향 (An Effect of Medical Service Quality on Relationship Quality, Customer Satisfaction and Reuse Intent in Oriental Medical Hospital)

  • 조철호
    • 한국병원경영학회지
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    • 제15권2호
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    • pp.107-128
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    • 2010
  • These days, customer satisfaction and relationship quality are regarded as important mediating factor in successful hospital management. Generally, service quality affects relationship quality, customer satisfaction and reuse intent in diverse service industries, and most of researchers agree to this conclusion. This study is designed to explore medical service quality in Oriental Medical Hospital and causal relationship among medical service quality, customer satisfaction, relationship quality and reuse intention. Through conclusion of this study, we could find that Oriental medical service quality factors are composed of medical staff, subsidiary facilities, medical facilities and administration service, and they affected relationship quality and reuse intent directly and indirectly through customer satisfaction. Moreover we found that customer satisfaction and relationship quality were playing an important role as connecting bridge between service quality and reuse intent.

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시간제약 조건하에서 재사용 모듈 설계를 통한 CPLD 저전력 기술 매핑 (CPLD Low Power Technology Mapping for Reuse Module Design under the Time Constraint)

  • 강경식
    • 디지털산업정보학회논문지
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    • 제4권3호
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    • pp.77-83
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    • 2008
  • In this paper, CPLD low power technology mapping for reuse module design under the time constraint is proposed. Traditional high-level synthesis do not allow reuse of complex, realistic datapath component during the task of scheduling. On the other hand, the proposed algorithm is able to approach a productivity of the design the low power to reuse which given a library of user-defined datapath component and to share of resource sharing on the switching activity in a shared resource. Also, we are obtainable the optimal the scheduling result in experimental results of our using chaining and multi-cycling in the scheduling techniques. Low power circuit make using CPLD technology mapping algorithm for selection reuse module by scheduling.

The Effect of Mobile e-Learning Contents Platform Characteristics on Reuse Intention

  • Na, Jun-Gyu;Kim, Dongyeon
    • 한국컴퓨터정보학회논문지
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    • 제25권9호
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    • pp.183-191
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    • 2020
  • IT 발달과 함께 스마트기기로 많은 학습자가 이러닝 콘텐츠를 접하고 있으며, 콘텐츠 제공자들은 학습자의 재이용 의도와 행동을 주의 깊게 관찰하고 있다. 따라서 본 연구에서는 스마트폰에 기반한 이러닝 학습을 접해본 200명의 사용자를 대상으로 이러닝 콘텐츠 플랫폼 특성이 재이용 의도에 미치는 영향을 연구하였다. 그 결과, 사용자의 재이용 의도에 영향을 미치는 특성은 콘텐츠 품질, 상호작용성, 편재성으로 나타났다. 또한, 남성일 경우 재이용 의도에 영향을 미치는 가장 큰 특성은 상호작용성이며, 여성일 경우 콘텐츠 품질과 편재성이었다. 스마트폰을 이용해 하루 평균 한 시간 미만 이러닝을 학습할 경우 콘텐츠 품질이 재이용 의도에 가장 큰 영향을 주었으며, 반대로 한 시간 이상 학습할 경우 편재성, 편리성, 상호작용성이 재이용 의도에 영향을 주었다. 아직도 많은 이러닝 기업들이 PC 기반의 기술이나 단기적 홍보 중심의 사업 전략을 유지해오고 있는데, 본 연구의 결과는 앞으로 해당 기업들이 장기적 사업 전략의 관점에서 스마트폰 기반의 플랫폼 변화와 그 핵심 요인들에 대한 방향을 제시했다는 데 의의를 둘 수 있다.

유역차원의 하수처리수 재이용 대안평가와 우선순위 결정과정에 관한 연구 (A Study on Evaluation and Prioritization Process of Wastewater Reuse Alternative in Watershed Level)

  • 정은성;전상묵;이진희;안종호
    • 한국물환경학회지
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    • 제29권2호
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    • pp.259-269
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    • 2013
  • This study aims to show the feasibility of wastewater reuse through hydrological analysis and propose a framework for planning using multi-criteria decision making technique. Ten alternatives of wastewater reuse (BOD: 3.0 mg/L & 4.7 mg/L) and two references in the urban watershed were considered and analyzed by using Hydrological Simulation Program in Fortran (HSPF). Though wastewater reuse has a positive effect on water quantity, it may degrade the water quality due to the high discharge concentration. This study showed that wastewater reuse can be a great alternative for the rehabilitation of distorted water cycle, if the quality is improved up to the natural streamflow and the quantity is increased up to the instreamflow requirement. In addition, to determine the project priority, three criteria were compared: 1) impacts on water quantity and water quality, respectively, 2) consideration of present hydrologic vulnerabilities on water quantity and quality and not, and 3) social and economic considerations and not. From the performance values to all criteria, the specific ranking can be derived and the feasibility of each wastewater reuse project can be checked with the comparison of the existing facilities. As a result, DJ and DR were derived to become effective in any evaluation conditions while SS and WG were improper alternatives if various criteria were considered. The decision making for project prioritization must be careful with the consideration of various impacts of wastewater reuse because the evaluation of wastewater reuse alternative showed very different priorities for each criteria.