Good Classification Tests as Formal Concepts

Author(s):  
Xenia A. Naidenova
Author(s):  
Kaoutar Sefrioui Boujemaa ◽  
Ismail Berrada ◽  
Khalid Fardousse ◽  
Othmane Naggar ◽  
Francois Bourzeix

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Ting Qian ◽  
Ling Wei

As an important tool for data analysis and knowledge processing, formal concept analysis (FCA) has been applied to many fields. In this paper, we introduce a new method to find all formal concepts based on formal contexts. The amount of intents calculation is reduced by the method. And the corresponding algorithm of our approach is proposed. The main theorems and the corresponding algorithm are examined by examples, respectively. At last, several real-life databases are analyzed to demonstrate the application of the proposed approach. Experimental results show that the proposed approach is simple and effective.


2018 ◽  
Vol 48 (1) ◽  
pp. 1-32 ◽  
Author(s):  
Amira Mouakher ◽  
Oumaima Ktayfi ◽  
Sadok Ben Yahia

1999 ◽  
Vol 5 (3) ◽  
pp. 222-233 ◽  
Author(s):  
DAVID W. LOVEJOY ◽  
J.D. BALL ◽  
MATTHEW KEATS ◽  
MICHAEL L. STUTTS ◽  
EDWARD H. SPAIN ◽  
...  

ADHD adults (N = 26) were compared to normal controls (N = 26) on 6 neuropsychological measures believed sensitive to frontal lobe–executive functioning. MANOVA analyses and subsequent univariate tests indicated that most of the neuropsychological measures discriminated between the two groups. To address clinical significance, diagnostic classification rates were also generated for each measure individually, and for the battery as a whole. Levels of positive predictive power (PPP) for each of the 6 measures (83–100%) indicated that abnormal scores on these tests were good predictors of ADHD. However, estimates of negative predictive power (NPP) suggested that normal scores poorly predicted the absence of ADHD. When classification rates were calculated for the overall battery classification accuracy improved substantially. Thus, neuropsychological tests can differentiate adults suffering from ADHD from adults without ADHD, while also providing good classification accuracy. Finally, the pattern of neurobehavioral impairments exemplified through the Summary Index scores was interpreted as consistent with conceptualizations of ADHD depicting mild neurologic dysfunction in networks associated with the frontal lobes. (JINS, 1999, 5, 222–233.)


2005 ◽  
Vol 51 (3-4) ◽  
pp. 225-230 ◽  
Author(s):  
R. Chawla ◽  
K. Real ◽  
B. Masterson

An assessment of the impact of the new microbial water quality standards of the proposed EU Bathing Water Directive on the classification of designated Irish coastal bathing areas is presented. The new standards are applied retrospectively to the microbial water quality results for the bathing seasons of 1999, 2000 and 2001, and the outcome is compared with that recorded under the present Bathing Water Directive. A Microsoft EXCEL application was developed to generate the retrospective bathing area classifications according to the proposed Directive (Excellent, Good, Poor). It was found that the number of Irish coastal bathing areas not attaining ‘Excellent’ classification (as would be required at present for the Blue Flag award) was trebled; the number attaining ‘Good’ classification was increased by about 50%, and the number attracting ‘Poor’ classification (equivalent to ‘Fail’ under the present Directive) was increased nine-fold. Some of the shortcomings of the proposed Directive and suggestions for its revision are discussed.


2014 ◽  
Vol 3 (2) ◽  
pp. 178
Author(s):  
Maharida Maharida

This research aimed to find out the improvement of the students’ pronunciation ability by using Substitution Drill that focused on English Consonants which consisted of dental and palato alveolar consonants and English Vowel which consisted mid-front,mid-central and mid-back vowel. The researcher applied Pre-Experimental method with one group pretest-posttest design and collected the data by giving pre-test and post-test. The sample of the research was class X IPA of SMA Negeri 1 Galesong Selatan which consisted of 33 students. The sample was taken by using the purposive technique. The research variables were teaching pronunciation by using Substitution Drill as an independent variable and dependent variable were English Consonants and English Vowel. The result of the research showed that the tenth-grade students of SMA Negeri 1 Galesong Selatan had fair score in the pre-test. After treatment, their pronunciation ability significant improved. The result of the research was the mean score obtained by the students through pre-test was 5.77 which was classified as fair classification and the mean score of the students on the post-test was 7.32 which was classified as good classification and the value of t-test was greater than t-table (16.48 > 2.037). It indicated that the alternative hypothesis (H1) was accepted and the null hypothesis (H0) was rejected. It was concluded that the use of Substitution Drill was effective to improve the students’ pronunciation ability.Keywords: improvement, pronunciation, substitution drill, dental, palato alveolar


2017 ◽  
Vol 5 (2) ◽  
pp. 109
Author(s):  
Razif Razif ◽  
Rahmawati Rahmawati

This study aimed to determine the analysis of the modern tax administration system on the effectiveness of the implementation of functional examinations and their implications for taxpayer compliance at KPP Pratama Bireun. The data used in this study came from direct interviews. The population in this study amounted to 5 functional positions. The analytical method used was descriptive qualitative. The results indicated that the modern tax administration system at KPP Pratama Bireun was in good classification, and also the preparation of inspection programs capable in reducing difficulties on the implementation of tax audits.


Author(s):  
Hasan Hasan ◽  
Andi Sadapotto ◽  
Muhammad Hanafi ◽  
Usman Usman

This quasi-experimental study involves the experimental and control group which consist of 60 students in first year of SMA Muhammadiyah Sidenreng Rappang   2019/2020 academic year.  The reading test is used to collect data to find out do the students can achieve significant result in reading test using Text-based Character. Based on the result the mean score of the experimental group pre-test was 72.67 and classified into good classification, while the control group was 69.63 classified into good. The mean score of the post-test after treatment for the experimental group was 82.43 (very good) while the control group was 76.53, (good) classification still.  The researcher found that the T-table is higher than the t-test (α) (1.659<2.021). It means that there is a significant difference in the pre-test of the control and experimental group, while in post-test of an experimental and control group, the researcher finds that the T-test is higher than the alpha and previous score in the the pre-test (α) (3.089>2.021). The degree of freedom is 58. This study reveals that the alternative hypothesis (H1) was accepted, and the null hypothesis (H0) was rejected. This is means that the use of Text-based Characters can improves students' reading skills in significant way.


2020 ◽  
Vol 3 (2) ◽  
pp. 137-151
Author(s):  
Ai Tia Setiawati ◽  
Yayat Hidayat

Parent's attention to children is still lacking, caused by several things including busyness, low educational background, lack of parent's direction of everything that has been achieved by the child, causing the child to become indifferent to learning. The problems that arise are how the influence of parenting parents on student learning discipline at MTs Al Hidayah Ciomas Panjalu.This study aims to determine the extent of the influence of parenting on student learning discipline in MTs Al Hidayah Ciomas Panjalu.The method used in this research is descriptive method with quantitative approach. The study population at MTs Al Hidayah was 162 students with a sample of 35 people. Sampling was done by purposive sampling technique. The data collection tool taken was observation and questionnaire as many as 35 respondents, after the data was collected with complete stages. The next step was data analysis using spermant rank coefficient (rs). Parental parenting values in Al Hidayah MTs were obtained at 39.4 at intervals of 38.2 - 40.3 with a fairly good classification. While the learning discipline value of students in Al Hidayah MTs was obtained at 37.97 at intervals of 35.22 - 38.44 with poor classification. Based on the testing of hypotheses that have been done, the results have a pretty good effect between parenting parents with student learning discipline in MTs Al Hidayah. This is obtained from rs = 0.59 with the Guilford scale at an interval of 0.41 - 0.60 with a fairly good classification. The pattern of Oreangtua Parenting affects the Discipline of Student Learning is 35% so 65% is influenced by other factors. The influence of these two variables, namely Parenting Parents Against Student Learning Discipline is a significant correlation. This is evidenced by t_count = 4.20> t_table = 1.69236 so that Ha is accepted and Ho is rejected. Thus Parenting Parents have a pretty good effect on Student Learning Discipline.


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