• Title, Summary, Keyword: HITS

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Design of Advanced HITS Algorithm by Suitability for Importance-Evaluation of Web-Documents (웹 문서 중요도 평가를 위한 적합도 향상 HITS 알고리즘 설계)

  • 김분희;한상용;김영찬
    • The Journal of Society for e-Business Studies
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    • v.8 no.2
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    • pp.23-31
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    • 2003
  • Link-based search engines generate the rank using linked information of related web-documents . HITS(Hypertext Internet Topic Search), representative ranking evaluation algorithm using a special feature of web-documents based on such link, evaluates the importance degree of related pages from linked information and presents by ranking information. Problem of such HITS algorithm only is considered the link frequency within documents and depends on the set of web documents as input value. In this paper, we design the search agent based on better HITS algorithm according to advanced suitability between query and search-result in the set of given documents from link-based web search engine. It then complements locality of advanced search performance and result.

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Target Extraction Based on HITS Graph for Opinion Bias Detection in Twitter (트윗 문서에서 의견 바이어스 탐지를 위한 HITS 그래프 기반 핵심 자질 추출)

  • Kwon, A-Rong;Lee, Kyung-Soon
    • Annual Conference on Human and Language Technology
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    • pp.58-61
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    • 2012
  • 본 논문에서는 트위터 사용자들의 의견을 바이어스 탐지 하기 위해, 핵심 자질 추출 방법으로 HITS 그래프를 이용한 방법을 제안한다. 제안하는 핵심 자질 추출 방법은 사람이 직접 추출하지 못하는 자질도 추출할 수 있는 장점을 보였다. 제안한 핵심 자질 추출이 바이어스 탐지에 유효함을 검증하기 위해 4개의 토픽에 대해 평가 했을 때 제안 모델이 기존 모델보다 우수한 성능을 보였다.

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Stochastic Duels with Multiple Hits, and Fixed Duel Time

  • Kwon, Tai-Young;Bai, Do-Sun
    • Journal of the military operations research society of Korea
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    • v.6 no.2
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    • pp.69-88
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    • 1980
  • A stochastic fundamental duel with continous interfiring times is considered for including the kill effect of multiple hits and fixed duel time. Two alternatives, 'vital hit' and 'damage coefficient' approaches, are developed. Since a large quantity of ammunition is consumed when a sure kill is obtained through repetitive multiple hits, limitation of initial ammunition supply is included in the stochastic duel models with multiple hits and fixed duel time. General solutions are obtained and examples with negative exponential interfiring times and geometric ammunition supply are given.

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A Link control of the word associated relation with using HITS Algorithm (HITS 알고리즘을 이용한 단어 연관 관계 링크 제어)

  • Moon, Sung-Cheon;Lee, Jung-Hun;Cheon, Suh-H.
    • Proceedings of the Korean Information Science Society Conference
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    • pp.395-398
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    • 2010
  • 많은 정보들을 인터넷을 통하여 접할 수 있게 됨에 따라 사용자가 만족하는 결과를 보여주는 것이 검색 엔진의 궁극적인 목표가 되었다. 하지만 방대한 양을 가진 다양한 정보에서 원하는 검색 결과를 검색하는 것은 과거와 현재까지 많은 연구를 통해 많은 시간과 노력이 필요하다는 것이 증명 되었다. 기존의 HITS 알고리즘을 개선하여 링크 제어를 이용한 페이지와 페이지간에 관련성을 높였다.

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Mathematical Models for Hit Probabilities using Small-arms against Fast Low Flying Aircraft

  • Park, Chan-Tae
    • Journal of the military operations research society of Korea
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    • v.7 no.1
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    • pp.81-117
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    • 1981
  • Mathematical models for hit probabilities of small arms are developed in order to estimate the expected hits on an aircraft for certain altitudes and air speeds. A model for the firing lead angle is developed for cases when the distribution of hits is normal and the firing angle is from 20 degrees to 160 degrees. probabilities of hit for single and multiple shots at various altitudes are calculated. Tables are given showing the probability of hits and kill for targets flying at high speed above 500 feet from ground level.

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The Meta Search Agent using Ranking Algorithm with Link Structure Analysis (링크 구조 기반의 순위 알고리즘을 이용한 메타 검색 에이전트)

  • 김형욱;김민구;최경희
    • Proceedings of the Korean Information Science Society Conference
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    • pp.373-375
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    • 2002
  • 하이퍼 텍스트 구조의 특성을 이용한 순위 평가 알고리즘 중의 하나인 HITS 알고리즘은 웹 페이지들의 상호간에 연결된 링크 정보로부터 웹 문서들의 중요도를 평가하여 순위에 따른 결과를 제시한다. 그러나 초기의 HITS 알고리즘은 문서 내의 링크 빈도 수만을 고려하고, 입력 값으로 주어지는 웹 문서 집합의 특성에 의존적인 단점을 가지고 있다. 본 논문에서는 여러 웹 검색 엔진들로부터 얻어진 문서 집합에 수정된 HITS 알고리즘을 수행하는 메타 검색 에이전트를 설계하여 보다 나은 검색 성능을 구하고, 결과의 지역성을 보완한다.

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An Improved Sample Design for Estimating the Usage of Copyrighted Music Works (노래연습장, 유흥·단란주점의 음악저작물이용 실태조사 개선안 연구)

  • Lee, Kay-O;Chung, Yeon-Soo
    • Communications for Statistical Applications and Methods
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    • v.19 no.3
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    • pp.315-331
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    • 2012
  • In this research, we estimated the number of hits per song and its sampling error from 11 (areas including Gangnam) based on log data compiling the number of hits collected from offline karaoke players in March 2011. Then, we calculated the monetary equivalent of the sampling error under the current system that distribute royalties from the karaoke players to copyright holders(song writers and arrangers) according to the estimated hits. Because of the small sample size, the estimated number of hits had a very large sampling error. This research proposes a more reasonable sample design to estimate the usage of copyrighted music works for a fair distribution of royalties by reducing sampling error.

Range-Doppler Clustering of Radar Data for Detecting Moving Objects (이동물체 탐지를 위한 레이다 데이터의 거리-도플러 클러스터링 기법)

  • Kim, Seongjoon;Yang, Dongwon;Jung, Younghun;Kim, Sujin;Yoon, Joohong
    • Journal of the Korea Institute of Military Science and Technology
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    • v.17 no.6
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    • pp.810-820
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    • 2014
  • Recently many studies of Radar systems mounted on ground vehicles for autonomous driving, SLAM (Simultaneous localization and mapping) and collision avoidance are reported. In near field, several hits per an object are generated after signal processing of Radar data. Hence, clustering is an essential technique to estimate their shapes and positions precisely. This paper proposes a method of grouping hits in range-doppler domains into clusters which represent each object, according to the pre-defined rules. The rules are based on the perceptual cues to separate hits by object. The morphological connectedness between hits and the characteristics of SNR distribution of hits are adopted as the perceptual cues for clustering. In various simulations for the performance assessment, the proposed method yielded more effective performance than other techniques.

Study on Transport Current Properties of HTS cable connected with SFCL by using YBCO Thin Film type wire (YBCO 박막형 선재를 이용한 초전도 전류제한기의 연계에 따른 고온 초전도 케이블의 사고전류 통전 특성에 관한 연구)

  • Lee, Dong-Hyeok;Kim, Yong-Jin;Han, Byeong-Seong;Du, Ho-Ik;Han, Sang-Cheol;Lee, Jeong-Pil
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • pp.43-43
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    • 2010
  • HTS(High Temperature Superconductor) cable has a high possibility of practical use due to the possibility of low voltage and high capacity transmission caused by its lower power loss than copper cable. On the other hand, when fault current occurred, resistance increase caused by superconductivity loss, the amount of power supplies has diminished, furthermore, it's necessary to take the possible danger of damage to HITS cable into account. Therefore, an effective plan for dealing with the above problem is to link HITS cable to SFCL. In this study, we researched the possibilities of normal transport current as well as the safety of HITS cable by analyzing the properties of transport current in HITS cable connected with SFCL.

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Study for independence of hits in professional baseball games (프로야구 경기에서 안타의 독립성에 대한 연구)

  • Kim, Byungsoo;Park, Youngwook;Jang, Nayoung
    • Journal of the Korean Data and Information Science Society
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    • v.24 no.6
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    • pp.1421-1428
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    • 2013
  • In this paper, we would like to test whether the hit at a particular bat has a dependency with the hitting results at the previous bats in professional baseball games. For this purpose, we used the 2011 Korean Baseball League data. We find out that the hitting percentage at a particular bat has no dependency with the hit at the previous bat, after reviewing the conditional probability of hit at each bat and the lift. From the independence test of hits at consecutive bats, and hit at a particular bat with no hits at previous bats, we can conclude that hits at particular bats are not dependent on the hits at previous bats in most cases. Hence, we can safely conclude that a hit at a particular bat is statistically independent from the hits at the previous bats.