• Title/Summary/Keyword: Box-Plot

Search Result 102, Processing Time 0.023 seconds

Data Analysis of First Leak Time of Water Pipeline (상수도용 Pipeline의 누수고장 자료 분석)

  • Na, Myung-Hwan;Ham, Sang-Min
    • Journal of Applied Reliability
    • /
    • v.11 no.3
    • /
    • pp.213-224
    • /
    • 2011
  • In this paper, we analyze statistically the data set of first leak time of water pipeline. We classify first the leak time data by pipe type, location, diameter of pipe and, length of pipe. We perform the analysis of variance to indicate that there are significant difference of mean of the time between levels of the factor and also compare the distribution of levels using the multiple box-plot. When there are the difference of the mean, we perform the least significant test to find out what levels of the facor has a different mean.

Data visualization of airquality data using R software (R 소프트웨어를 이용한 대기오염 데이터의 시각화)

  • Oh, Youngchang;Park, Eunsik
    • Journal of the Korean Data and Information Science Society
    • /
    • v.26 no.2
    • /
    • pp.399-408
    • /
    • 2015
  • This paper presented airquality data through data visualization in several ways and described its characteristics related to statistical methods for analysis. Software R was used for visualization tools. The airquality data was measured in New York city from May to September of year 1973. First, simple, exploratory data analysis was done in terms of both data visualization and analysis to find out univariate characteristics. Then through data transformation and multiple regression analysis, model for describing the airquality level was found. Also, after some data categorization, overall feature of the data was explored using box plot and three-dimensional perspective drawing and scatter plot.

Exploratory Data Analysis and Teaching of Statistics in School Mathematics (탐색적 자료분석과 학교수학에서의 통계지도)

  • 김응환
    • Journal of the Korean School Mathematics Society
    • /
    • v.1 no.1
    • /
    • pp.35-45
    • /
    • 1998
  • This paper will present some basic and simple graphical methods of exploratory data analysis for the instrument of data analysis at school mathematics. Human beings perceive visual patterns more readily than patterns in collections of numbers. This is especially important in exploratory data analysis because pictures dramatically reveal things that we did not expect to find in the data set. Here are graphical methods as the stem and leaf plot, the box plot, the star plot and the face plot. These methods impulse the motivation of students in real life. And the subject can be taught in secondary school with several applications. Also It is important for students to get a feel for working with and manipulating data before studying the more theoretical aspects of statistics.

  • PDF

Bottleneck-based Siam-CNN Algorithm for Object Tracking (객체 추적을 위한 보틀넥 기반 Siam-CNN 알고리즘)

  • Lim, Su-Chang;Kim, Jong-Chan
    • Journal of Korea Multimedia Society
    • /
    • v.25 no.1
    • /
    • pp.72-81
    • /
    • 2022
  • Visual Object Tracking is known as the most fundamental problem in the field of computer vision. Object tracking localize the region of target object with bounding box in the video. In this paper, a custom CNN is created to extract object feature that has strong and various information. This network was constructed as a Siamese network for use as a feature extractor. The input images are passed convolution block composed of a bottleneck layers, and features are emphasized. The feature map of the target object and the search area, extracted from the Siamese network, was input as a local proposal network. Estimate the object area using the feature map. The performance of the tracking algorithm was evaluated using the OTB2013 dataset. Success Plot and Precision Plot were used as evaluation matrix. As a result of the experiment, 0.611 in Success Plot and 0.831 in Precision Plot were achieved.

Object Feature Tracking Algorithm based on Siame-FPN (Siame-FPN기반 객체 특징 추적 알고리즘)

  • Kim, Jong-Chan;Lim, Su-Chang
    • Journal of Korea Multimedia Society
    • /
    • v.25 no.2
    • /
    • pp.247-256
    • /
    • 2022
  • Visual tracking of selected target objects is fundamental challenging problems in computer vision. Object tracking localize the region of target object with bounding box in the video. We propose a Siam-FPN based custom fully CNN to solve visual tracking problems by regressing the target area in an end-to-end manner. A method of preserving the feature information flow using a feature map connection structure was applied. In this way, information is preserved and emphasized across the network. To regress object region and to classify object, the region proposal network was connected with the Siamese network. The performance of the tracking algorithm was evaluated using the OTB-100 dataset. Success Plot and Precision Plot were used as evaluation matrix. As a result of the experiment, 0.621 in Success Plot and 0.838 in Precision Plot were achieved.

Effect of online word-of-mouth variables as predictors of box office (영화 흥행 예측변수로서 온라인 구전 변수의 효과)

  • Jeon, Seonghyeon;Son, Young Sook
    • The Korean Journal of Applied Statistics
    • /
    • v.29 no.4
    • /
    • pp.657-678
    • /
    • 2016
  • This study deals with the effect of online word-of-mouth (OWOM) variables on the box office. From the result of statistical analysis on 276 films with audiences of more than five hundred thousand released in the Korea from 2012 to 2015, it can be seen that the variables showing the size of OWOM (such as the number of the portal movie rater, blog, and news after release) are associated more with the box office than the portal movie rating showing the direction of OWOM as well as variables showing the inherent properties of the film such as grade, nationality, release month, release season, directors, actors, and distributors.

Effect of Mixing Time of Pre-Mixed Cement and Post-Mixed Cement on the Strength Development of the Concrete (프리믹스 및 포스트믹스 시멘트를 혼입시간이 콘크리트의 압축강도에 미치는 영향)

  • Baek, Sung-Jin;Lee, Hyeok;Han, Jun-Hui;Kim, Jong;Han, Min-Cheol
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2023.05a
    • /
    • pp.137-138
    • /
    • 2023
  • This study proposed the optimal mixing time for pre-mixed cement and post mixed cement using the statistical analysis method of box plots. Pre-mixed cement can prevent material seegregation, strength loss, and quality variation if mixed for at least 60 seconds, and the data median is shown to be within the box range. Post-mixed cement should be mixed for at least 180 seconds to prevent material segregation, strength loss, and quality variation, and compressive strength tends to increase with longer vibrating times. Therefore, it is suggested that using pre-mixed cement can shorten the vibrating time and increase the productivity of the concrete.

  • PDF

A Way of Securing the Access By Using PCA (주성분분석(PCA)을 이용한 출입인원관리에 대한 보안성 확보 방안)

  • Kim, Min-Su;Lee, Dong-Hwi
    • Convergence Security Journal
    • /
    • v.12 no.3
    • /
    • pp.3-10
    • /
    • 2012
  • This study aimed at making a way of securing the access by using PCA. We got our result through using Box-Plot and PCA with the access data of the area of security level A~E at K(IPS)center. In order to perform PCA, We confirmed the extracted value of commonality has no problem in performing PCA because VIF is below 2.902. Based on this result, We classified people into Green-list, Blue-list, Red-list, and Black-list in a standard of security level with 1.453, as the eigen value of 1 main element, 1.283, as eigen value of 2 main elementm, 1.142, as the eigen value of 3 main element.

Efficient Designs to Develop a Design Space in Quality by Design (설계기반 품질고도화에서 디자인 스페이스 구축을 위한 효율적인 실험계획)

  • Chung, Jong Hee;Kim, Jinyoung;Lim, Yong B.
    • Journal of Korean Society for Quality Management
    • /
    • v.47 no.3
    • /
    • pp.523-535
    • /
    • 2019
  • Purpose: We research on the efficient response surface methodology(RSM) design to develop a design space in Quality by Design(QbD). We propose practical designs for the successful construction of the design space in QbD by allowing different number of replicates at the box points, star points, and the center point in the rotatable central composite design(CCD). Methods: The fraction of design space(FDS) plot is used to compare designs efficiency. The FDS plot shows the fraction of the design space over which the relative standard error of predicted mean response lies below a given value. We search for practical designs whose minimal half-width of the tolerance interval per a standard deviation is less than 4.5 at 0.8 fraction of the design space. Results: The practical designs for the number of factors between two and five are listed. One of the designs in the list could be chosen depending on the experimental budget restriction. Conclusion: The designs with box points replications are more efficient than those with the star points replication. The sequential method to establish a design space is illustrated with the simulated data based on the two examples in RSM.