• Title, Summary, Keyword: score function

Search Result 1,335, Processing Time 0.052 seconds

Asymptotic Relative Efficiency for New Scores in the Generalized F Distribution

  • Choi, Young-Hun
    • Communications for Statistical Applications and Methods
    • /
    • v.11 no.3
    • /
    • pp.435-446
    • /
    • 2004
  • In this paper we introduced a new score generating function for the rank dispersion function in a multiple linear model. Based on the new score function, we derived the asymptotic relative efficiency, ARE(11, rs), of our score function with respect to the Wilcoxon scores for the generalized F distributions which show very flexible distributions with a variety of shape and tail behaviors. We thoroughly explored the selection of r and s of our new score function that provides improvement over the Wilcoxon scores.

The Effect of Intensive Therapy on Gross Motor Function Measure Score in Cerebral Palsy (집중치료가 뇌성 마비아의 대동작 기능 점수에 미치는 영향)

  • Oh, Jung-Lim;Kim, Chung-Sun
    • Journal of the Korean Society of Physical Medicine
    • /
    • v.4 no.2
    • /
    • pp.101-106
    • /
    • 2009
  • Purpose:The purpose of this study was to find the effect of intensive therapy on gross motor function measure(GMFM) score in cerebral palsy. Methods:Twenty eight cerebral palsy children were recruited in this study. Gross motor Function Measure(GMFM) score and Gross motor Function Classification System(GMFCS) were used to evaluate as functional change and functional level. Intensive therapy period for cerebral palsy children was 3, 4, and 5 weeks. Statistical analysis was used paired T test and one way ANOVA to know change between pre and post therapy was used. Results:GMFM Score of pre- and post- intensive therapy showed the statistically significant difference. Intensive therapy period indicated the statistically significant difference in GMFM score. GMFCS level did not reveal statistically significant difference in GMFM score. Conclusion:Intensive therapy was effective on gross motor function measure(GMFM) score in cerebral palsy.

  • PDF

Hypothesis Testing for New Scores in a Linear Model

  • Park, Young-Hun
    • Communications for Statistical Applications and Methods
    • /
    • v.10 no.3
    • /
    • pp.1007-1015
    • /
    • 2003
  • In this paper we introduced a new score generating function for the rank dispersion function in a general linear model. Based on the new score function, we derived the null asymptotic theory of the rank-based hypothesis testing in a linear model. In essence we showed that several rank test statistics, which are primarily focused on our new score generating function and new dispersion function, are mainly distribution free and asymptotically converges to a chi-square distribution.

A Study on the Correlations between Family Function, Social Support And perceived Mother's Love in the Adolescents (청소년의 가족기능.사회적 지지와 지각된 어머니 사랑간의 관계연구)

  • Song, Mi-Ryeong
    • Journal of Korean Academy of Community Health Nursing
    • /
    • v.12 no.3
    • /
    • pp.785-794
    • /
    • 2001
  • Purpose: This study was to find out the correlations amongst family function. social support. and the perceived mother's love in the adolescents. Method: The study subjects were 171 adolescents of whom 43 were middle school students and 128 were high school students. The data consisted of general characteristics. family function. social support and perceived mother's love. The data were analyzed by frequency. mean. percentage. t-test. ANOVA and the Pearson's correlation using the SPSS statistical program. Result: 1. The mean score of the family function in the adolescents was 3.09 (maximum score: 5) and the mean score of cohesion was 3.23 and the mean score of adaptability was 2.94. There were significant differences in the family function according to grade and family type. 2. The mean score of the social support in the adolescents was 2.86 (maximum score: 5) and there was significant difference in the social support according to the fathers occupation. 3. The mean score of the perceived mother's love in the adolescents was 3.57 (maximum score: 5) and there were significant differences in the perceived mother's love according to grade. existence of the mother, the mother's occupation and adolescent's health state. 4. There were positive correlations between the family function, social support and the perceived mother's love. Conclusion: The above results suggest that there is a need to develop social support program for the adolescents in the low economic status. Further, a comprehensive program should be developed to relieve the problems of the adolescents considering the family function. social support and perceived mother's love.

  • PDF

Suggestion of Using Defense Quality Score based on Taguchi Loss Function in Korea Defense Area (다구찌 손실함수 개념을 응용한 국방품질스코어 적용 가능성에 대한 연구 : 군수품 사례 위주)

  • Ahn, Namsu;Park, Sangwon;Chae, Jongmok;Lee, Youngwoo;Oh, Byeongin
    • Journal of the Korean Society for Quality Management
    • /
    • v.41 no.3
    • /
    • pp.443-456
    • /
    • 2013
  • Purpose: Recently, many quality issues are aroused in military forces, such as failures in K-series weapons, combat boots defects and 40mm ammunition explosion accident. To address these problems, this paper suggests to use so called, Defense Quality Score, which is based on Taguchi loss function and developed in this research. Methods: Current defense specification states only the minimum requirement to produce the military supplies. Therefore, it is not easy to indue the continuous quality improvement of the supplies. This research suggests to use the defense quality score which measures the current status of defense supplies'quality characteristics. Results: We applied the defense quality score concept into the hot pepper sauce and long time stockpiled ammunition. We first categorize the quality characteristics into three categories, then assign the certain amount of score based on the importance of the characteristics. Lastly, we applied the modified Taguchi loss function to calculate the achieved score of the characteristics. The perfect score is 100 and the closer to the score, the better product it indicates. Conclusions: In this research, we developed the modified Taguchi loss function to apply into the korean defense supplies. The loss function is utilized to calculate the achieved level of satisfaction of the supplies based on the defense specifications. The application of defense quality score may help to stimulate the continuous quality improvement and encourage the good will quality competition among the military providers.

Clinical Application of AR System in Early Rehabilitation Program After Stroke: 2 Case Study

  • An, Chang Man;Kim, Dae Hyun
    • The Journal of Korean Physical Therapy
    • /
    • v.31 no.3
    • /
    • pp.141-146
    • /
    • 2019
  • Purpose: To investigate the effect of an augmented reality (AR) system on muscle strength and function level of the paretic lower limb and the balance ability in the early rehabilitation program of acute stroke patients. Methods: The participants (30 or fewer days after stroke) were randomly assigned to receive intervention with an early rehabilitation program using an AR system (n=1) or an early rehabilitation program consisting of functional electrical stimulation and tilt table use (n=1). Patients in both subjects received interventions 4-5 times a week for 3 weeks. Results: In the paretic limb muscle strength, AR subject was increased from 15 to 39.6 Nm and Control subject was increased from 5 to 30.2 Nm. The paretic limb function of AR subject motor function was increased from 8 to 28 score and Control subject motor function was increased from 6 to 14 score. But sensory function was very little difference between the two subjects (AR subject: from 4 to 10 score, Control subject: from 3 to 10 score). In the balance ability, AR subject had more difference after intervention than control subject (AR subject: 33 score, Control subject: 22 score). Conclusion: The early rehabilitation program using the AR system showed a slightly higher improvement in the motor function of the paretic lower limb and balance ability measurement than the general early rehabilitation program. The AR system, which can provide more active, task-oriented, and motivational environment, may provide a meaningful environment for the initial rehabilitation process after stroke.

Directional adjacency-score function for protein fold recognition

  • Heo, Mu-Young;Cheon, Moo-Kyung;Kim, Suhk-Mann;Chung, Kwang-Hoon;Chang, Ik-Soo
    • Interdisciplinary Bio Central
    • /
    • v.1 no.2
    • /
    • pp.8.1-8.6
    • /
    • 2009
  • Introduction: It is a challenge to design a protein score function which stabilizes the native structures of many proteins simultaneously. The coarse-grained description of proteins to construct the pairwise-contact score function usually ignores the backbone directionality of protein structures. We propose a new two-body score function which stabilizes all native states of 1,006 proteins simultaneously. This two-body score function differs from the usual pairwise-contact functions in that it considers two adjacent amino acids at two ends of each peptide bond with the backbone directionality from the N-terminal to the C-terminal. The score is a corresponding propensity for a directional alignment of two adjacent amino acids with their local environments. Results and Discussion: We show that the construction of a directional adjacency-score function was achieved using 1,006 training proteins with the sequence homology less than 30%, which include all representatives of different protein classes. After parameterizing the local environments of amino acids into 9 categories depending on three secondary structures and three kinds of hydrophobicity of amino acids, the 32,400 adjacency-scores of amino acids could be determined by the perceptron learning and the protein threading. These could stabilize simultaneously all native folds of 1,006 training proteins. When these parameters are tested on the new distinct 382 proteins with the sequence homology less than 90%, 371 (97.1%) proteins could recognize their native folds. We also showed using these parameters that the retro sequence of the SH3 domain, the B domain of Staphylococcal protein A, and the B1 domain of Streptococcal protein G could not be stabilized to fold, which agrees with the experimental evidence.

Analysis of Correlation Between Knee Function Score and Knee Strength and Muscular Endurance According to the position of Elite Female Handball Athletes (엘리트 여자 핸드볼 선수들의 포지션별 무릎 기능평가와 무릎의 근력 및 근지구력의 상관관계 분석)

  • Kim, Hyun-Chul;Park, Ki-Jun
    • Journal of the Korean Society of Physical Medicine
    • /
    • v.15 no.3
    • /
    • pp.127-133
    • /
    • 2020
  • PURPOSE: The study examined the relationship between the knee function score and knee strength and muscular endurance of an elite female handball athletes according to their position in the team. METHODS: Thirty handball athletes participated on the study: 12 front positions, 12 back positions, and five goalkeepers. The knee function score consisted of symptoms, pain, daily activity, sports and recreation, and quality of life. In addition, CSMI (Cybex, USA) was used to measure the strength and muscular endurance of the knee. The muscular strength and muscular endurance were measured at an angular velocity of 60°/s and 180°/s, respectively. RESULTS: The overall items of the knee function score showed a significant difference (p = .017), and goalkeepers had significantly higher scores than the back positions. In addition, significant differences were observed in all five items depending on the position (p ≤ .05). On the other hand, both the flexor and extensor muscles of the knee strength and muscular endurance were not significant. Moreover, there was no correlation between the knee function score and the knee strength and muscle endurance. CONCLUSION: Elite female handball athletes have different knee functions score depending on their position in the team, but the, strength and muscular endurance of the knee were similar for each position. Furthermore, the knee function score showed no correlateion with the strength and muscular endurance of the knee.

Prediction Intervals for Nonlinear Time Series Models Using the Bootstrap Method (붓스트랩을 이용한 비선형 시계열 모형의 예측구간)

  • 이성덕;김주성
    • The Korean Journal of Applied Statistics
    • /
    • v.17 no.2
    • /
    • pp.219-228
    • /
    • 2004
  • In this paper we construct prediction intervals for nonlinear time series models using the bootstrap. We compare these prediction intervals to traditional asymptotic prediction intervals using quasi-score estimation function and M-quasi-score estimating function comprising bounded functions. Simulation results show that the bootstrap method leads to improved accuracy. The accuracy of the bootstrap is empirically demonstrated with the consumer price index.