• Title/Summary/Keyword: Patterns Analysis

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Analysis on the First Graders' Recognition and Thinking About Mathematical Patterns (초등학교 1학년 학생들의 수학적 패턴 인식과 사고 과정 분석)

  • Choi, Byoung-Hoon;Pang, Jeong-Suk
    • Journal of Educational Research in Mathematics
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    • v.21 no.1
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    • pp.67-86
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    • 2011
  • This study aimed to examine first graders' recognition and thinking about mathematical patterns. To attain the goal, this paper analyzed 116 students' response with regard to repeating, growing, and changing patterns represented in both picture and number, and also analyzed four students' thinking process of the patterns through interview. It was found that students showed high recognition in repeating, growing, and changing patterns in order. Whereas there was no significant difference between picture and number representation in both repeating and growing patterns, pictures gained a bit higher scores than numbers in changing patterns. Also, according to the result of examining the thinking process by the patterns, students tended to consider the patterns as a bundle and tried to solve problems with counting strategies. The result of this paper provides an empirical foundation on how first graders recognize and think of various patterns.

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An Analysis on Characteristics of Ancient Indonesian Textiles (II) - Focus on the Techniques and the Patterns of the 'Sacred Cloths' -

  • Langi, Kezia-Clarissa;Park, Shinmi
    • Journal of the Korean Society of Costume
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    • v.66 no.7
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    • pp.34-49
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    • 2016
  • The ancient 'sacred cloths' of Indonesia have diverse characteristics. The purpose of this study is to analyze the characteristics of ancient Indonesian textiles, focusing on 'sacred cloths.' The research is divided into two parts. The first part analyzes the creation period, religious importance, region where the cloths are found, and color of the 'sacred cloths.' The second part focuses on the textile-making techniques and the ritual patterns of the 'sacred cloths.' This research is the second paper. This research analyzes 225 Indonesian sacred cloth examples chosen for their religious function in ceremony, and reviews 10 books and 8 research papers. Field research was done in the Museum of Bali, the Indonesian Museum of Textiles, and nine weaving production houses in eastern Bali. Indonesian sacred cloths express their cultural philosophy and function through production techniques, colors, techniques, and visual patterns. The 'sacred cloth'-making techniques are classified as Batik, Prada, and Ikat. The regions that contribute to the textile production determine what patterns show up on the cloths. Sumatran patterns are philosophical, lavish, and prestigious. Bornean patterns are barbaric and prestigious. Balinese patterns are complex, decorative, warm, festive, calm, and aristocratic. Javanese patterns are symbolic and repetitive. Celebes patterns are artistic and simple. Nusa Tenggara patterns are symbolic and narrative. The forms shown on the textiles, whether geometric, human and animal, natural objects, or abstract patterns, determine how to classify the varied patterns. As a result, ancient Indonesian sacred cloths characteristics portray Indonesian identity as Bhinneka Tunggal Ika(Unity in Diversity).

Improving Execution Models of Logic Programs by Two-phase Abstract Interpretation

  • Chang, Byeong-Mo;Choe, Kwang-Moo;Giacobazzi, Roberto
    • ETRI Journal
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    • v.16 no.4
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    • pp.27-47
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    • 1995
  • This paper improves top-down execution models of logic programs based on a two-phase abstract interpretation which consists of a bottom-up analysis followed by a top-down one. The two-phase analysis provides an approximation of all (possibly non-ground) success patterns of clauses relevant to a query. It is specialized by considering Sato and Tamaki’s depth k abstraction as abstract function. By the ability of the analysis to approximate possibly non-ground success patterns of clauses relevant to a query, it can be statically determined whether some subgoals will fail during execution and some succeeding subgoals do not participate in success patterns of program clauses relevant to a given query. These properties are utilized to improve execution models. This approach can be easily applied to any top-down (parallel) execution models. As instances, it is shown to be applicable to linear execution model and AND/OR Process Model.

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Analysis of Location Patterns for Protected Horticulture (시설원예의 입지유형 분석)

  • 황한철;이남호;전우정;남상운;홍성구
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.40 no.2
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    • pp.92-101
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    • 1998
  • Location patterns of protected horticulture were analyzed using a multiple correspondence analysis(MCA). The analysis could be used in evaluating location suitability of protected horticulture. The location factors of the protected horticulture for MCA include land category, size of protected horticulture, land slope, topography, effictive soil depth, irrigation and drainage condition, distance from roads, and so forth. The results showed that there were three different location patterns of protected horticulture. The first pattern was characterized by their nearness to villages. The facilities of this pattern were mainly located near to residential area. The second pattern was of those found in plain area. The facilities of this pattern were large in scale and located in paddy field far from residential area. The facilities of the last pattern were small in scale and located on nonpaddy fields. They were mostly found in hilly or mountainous area.

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An Study on the Structure of Maghemite(${\gamma}$-Fe$_2$O$_3$) I -Rietveld Analysis of Powder XRD Patterns- (마게마이트(${\gamma}$-Fe$_2$O$_3$)대한 연구 I -분말 X-선 회절무늬의 Rietveld 분석-)

  • 신형섭
    • Journal of the Korean Ceramic Society
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    • v.35 no.10
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    • pp.1113-1119
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    • 1998
  • Crystal structure of needle-shaped maghemite(${\gamma}$-{{{{ { {Fe }_{2 }O }_{3 } }}) has been studied by the Rieveld analysis of powder X-ray diffraction patterns. The tetragonal space group P41,.3212 and cubic space group P41,.32 have been have been used for the refinement of X-ray diffraction patterns. The crystal system of maghemite is closed to tetragonal more than cubic. The tetragonal lattice parameters are a=8.3460$\AA$ and c=25.034$\AA$ The standard X-ray diffraction pattern of the tetragonal maghemite analyzed with space group P41,.3212 is proposed.

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Processing and Analysis of LANDSAT MSS Data for Extraction of Coastal Flow Patterns - around Incheon Bay - (연안수리현상 파악을 위한 LANDSAT MSS Data의 처리와 해석 -인천해역을 중심으로-)

  • 안철호;안기원;안호준
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.4 no.2
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    • pp.59-75
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    • 1986
  • The purpose of this study is to determine the most effective image analysis technique for extraction of coastal flow patterns from LANDSAT MSS data. Choosing the coastal area of Incheon, LANDSAT MSS data of oceanic area, which has generally low values of CCT data in comparison with the adjacent land was used On the basis of the above preparation, the most effective image analysis procedure of LANDSAT MSS data for the case of extraction of coastal flow patterns has been obtained through contrast stretching, color composite, and compression of bi-band image data.

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EMG Analysis for Investigation Muscle-Collaborated Relationship during Golf Swing (골프스윙시 근육협응관계 구명을 위한 EMG 분석)

  • Shim, Tae-Yong;Shin, Seong-Hyu;Oh, Seung-Il;Mun, Jung-Hwan
    • Korean Journal of Applied Biomechanics
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    • v.14 no.3
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    • pp.177-189
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    • 2004
  • Kinematic and kinetic analysis using 3D Motion Capture system are common, yet there is little in the literature that discuss the relationship and coactivity between muscles during the golf swing. The purpose of this study was to describe the relationship between the employed 16 muscles during golf swing. We could observe 3 muscle patterns such as 'Line' shape, 'L' shape, and 'Loop' shape for the golf swing activity. The 'Line' shape indicates that two muscles act almost perfectly in phase, and the 'L' shape represents that two muscles act in a reciprocating manner(When one is active, the other is quiescent and vice versa). And the 'Loop' shape indicates that two muscles act sequently(After one is active, the other act). In these results, we knew the muscle patterns during golf swing is similar to the patterns during gait. And we presented it was possible to show the consistence of golf swing through the frequency analysis of muscle patterns. We believe that the results potentially useful for the golf players and coaches to analyze their performance.

Framework for False Alarm Pattern Analysis of Intrusion Detection System using Incremental Association Rule Mining

  • Chon Won Yang;Kim Eun Hee;Shin Moon Sun;Ryu Keun Ho
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.716-718
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    • 2004
  • The false alarm data in intrusion detection systems are divided into false positive and false negative. The false positive makes bad effects on the performance of intrusion detection system. And the false negative makes bad effects on the efficiency of intrusion detection system. Recently, the most of works have been studied the data mining technique for analysis of alert data. However, the false alarm data not only increase data volume but also change patterns of alert data along the time line. Therefore, we need a tool that can analyze patterns that change characteristics when we look for new patterns. In this paper, we focus on the false positives and present a framework for analysis of false alarm pattern from the alert data. In this work, we also apply incremental data mining techniques to analyze patterns of false alarms among alert data that are incremental over the time. Finally, we achieved flexibility by using dynamic support threshold, because the volume of alert data as well as included false alarms increases irregular.

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Manual Design for Pattern Developing and Virtual Modelling through Product Analysis -Focused on Disposable Protective Coverall- (제품 분석을 통한 패턴 제작 및 가상 모델링 제작 매뉴얼 설계 -부직포 전신 보호복을 중심으로-)

  • Jeon, Eunkyung;Moon, Jeehyun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.39 no.3
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    • pp.457-467
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    • 2015
  • The demand for coverall-type protective clothing are increasing in many industrial fields; however, it is impossible to evaluate the wearers' apparel fit because there is no commercialized pattern in the market. This study produces a manual for the process of acquiring patterns by separating PPE products into pieces to provide information on acquiring patterns. The analysis was on coverall-type non woven protective clothing in the domestic market, and 4 panels examined the validity, reliability, and efficiency of various possible methods on each step of process. Five steps were conducted to acquire patterns removing wrinkles, marking seams lines, separating seams, and pattern completing. The process of converting these into pattern files was designed through three procedures of digitizing, editing, and exporting and detailed stages. Fitting tests were undertaken, real patterns by actual modeling and pattern files by virtual modeling; all showed similar forms with outfits wearing ready-made protective coveralls. This study sought the most efficient and objective method of virtual modeling and proposed it as a manual. It is expected for the pattern reverse-designing manual through products analysis presented in this study that would be a helpful addition of information to the pattern tracing of pattern-less clothing products.

Characteristics of Patterns on Art-Walls as an Imagery Element in Contemporary Living Spaces (국내 공동주거 공간 이미지 요소로서의 아트월 패턴 연구)

  • Park, Young-Soon;Kim, Seong-Ah;Kim, Eun-Jung;Lim, Sun-Hee
    • Korean Institute of Interior Design Journal
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    • v.19 no.3
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    • pp.86-94
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    • 2010
  • Art-Wall is the term for a surface wall representing artistic expression by using different materials or images in interior spaces. Usually this is the focal point in an interior space and sometimes it called as an image wall. In the new millenium Art-walls began to use in living spaces. While in the early stages of the development, Art-Wall was limited in a living room, in contemporary it spread into overall living spaces using various patterns and materials. Therefore, the research on Art-Walls in contemporary living spaces is essential to understand this development. The purpose of this study is to find out characteristics of patterns on Art-Walls as an imagery element in contemporary interior spaces. To analyze the characteristic, the analysis table for Art-Walls are constructed based on classifications of wallpapers and textiles. Based on this analysis table, 89 examples of Art-Walls from four major periodicals from 2008 to 2009 were examined. As a result of the analysis, in contemporary interior spaces solid-texture pattern is most frequently appeared. Then natural motifs are the next most popular using oversized or irregular layouts. The result shows that naturalistic expression is significant in interior space in 2008 to 2009. Therefore, Art-Walls that adapted diverse patterns are an essential element in contemporary interiors to represent the major concept of the space.