for Journals by Title or ISSN
for Articles by Keywords
help
Journal Cover Research & Reviews : Journal of Statistics
  [3 followers]  Follow
    
   Full-text available via subscription Subscription journal
   ISSN (Print) 2348-7909 - ISSN (Online) 2278-2273
   Published by STM Journals Homepage  [67 journals]
  • Clustering of Pre-monsoon Precipitation of Bangladesh—A Ward’s
           Hierarchical Agglomerative Clustering Approach
    • Authors: Md. Habibur Rahman
      Abstract: In this study, the Ward’s hierarchical agglomerative clustering algorithm applies to predict the homogeneous regions and years on the basis of pre-monsoon precipitation of Bangladesh. The thirty-four locations and the years 1973 to 2014 for pre-monsoon precipitation are presented by cluster dendrogram. The cluster results found six homogeneous clusters for the precipitations of 34 locations and eight homogeneous clusters for the precipitations of 42 years in Bangladesh. Keywords: Euclidean distance, dendrogram, precipitationCite this Article Md. Habibur Rahman. Clustering of Pre-monsoon Precipitation of Bangladesh—A Ward’s Hierarchical Agglomerative Clustering Approach. Research & Reviews: Journal of Statistics. 2017; 6(2): 1–7p.
       
      PubDate: 2017-07-26
      Issue No: Vol. 6 (2017)
       
  • Optimization of Job-Shop Scheduling Problem for Calculating Makspan using
           Modified TLBO Method
    • Authors: M.S. Kagthara, M.G. Bhatt
      Abstract: The paper presents the method for optimization of job shop scheduling problem, the mathematical model developed in the recent article has been used for optimization of makspan. TLBO (teaching–learning based optimization) is advanced method of optimization which is used for optimization with some modification. Here discrete generation has been created for the solution of job shop scheduling problem. The results are compared with benchmark problems and GT algorithm is also used for comparisons.   Keywords: Job-Shop Scheduling, TLBO method, Makspan, GT algorithmCite this Article Kagthara MS, Bhatt MG. Optimization of Job-Shop Scheduling problem for calculating makspan using modified TLBO method. Research & Reviews: Journal of Statistics. 2017; 6(1): 33–37p. 
      PubDate: 2017-05-12
      Issue No: Vol. 6 (2017)
       
  • A Law of Iterated Logarithm for Delayed Random Sums
    • Authors: Gooty Divanji
      Abstract: Let be a sequence of independent identically distributed random variables with a common distribution function F and let , n ³ 1. When F belongs to the domain of attraction of a stable law with index a, 0 < a < 2, Chover's form of the law of the iterated logarithm has been obtained for delayed random sums.   MSC 2000 Subject Classification: 60F15 Keywords: Delayed sums, Delayed random sums, Law of iterated logarithm, Domain of attraction, Stable LawCite this Article Gooty Divanji. A Law of Iterated Logarithm for Delayed Random Sums. Research & Reviews: Journal of Statistics. 2017; 6(1): 24–32p. 
      PubDate: 2017-05-12
      Issue No: Vol. 6 (2017)
       
  • Measuring Risk Attitudes and Time Preference in Rotating Saving Credit
           Associations
    • Authors: Indu Choudhary
      Abstract: A rotating saving credit association, popularly known as ‘Rosca’, is a financial mechanism functioning over a fixed period of time. It involves formation of a group of people contributing fixed amounts of money to a pre-determined pool every period. Each participant either through draw of lots or bidding is entitled to the rosca pot in a given round. The rosca cycle ends when each person in the group has received the pot. The uniqueness of rosca as a financial instrument lies in its dual role of a saving and a credit instrument. This paper analyzes the role of risk attitudes and time preferences in discount bidding roscas. The data for the study comes from roscas organized in two urbanized villages of the national capital territory of Delhi. Using a risk-time preference experiment on rosca participants, the paper employs non-linear least squares estimation to elicit risk and time preference parameters for participants of discount bidding roscas in the sample. Keywords: Roscas, risk, time preference, experiments, non-linear Cite this Article Indu Choudhary. Measuring Risk Attitudes and Time Preference in Rotating Saving Credit Associations. Research & Reviews: Journal of Statistics. 2017; 6(1): 18–23p. 
      PubDate: 2017-05-12
      Issue No: Vol. 6 (2017)
       
  • The Causes of Smoking and Smoking Related Factors in Santosh a Rural Area
           in Tangail District, Bangladesh: A Case Study
    • Authors: Md. Binyamin, Md. Ramjan Ali, Shayla Naznin, Md. Soyebur Rahman
      Abstract: This study was conducted to identify the causes of smoking and starting age of smoking. To assess these factors, both bivariate and univariate analyses were performed. Bivariate analysis shows that educational qualification and from where you bought the first cigarette, educational qualification and smoking is harmful for health, occupation and smoking is addiction are highly significant. Bivariate analysis shows that monthly income and daily cost for smoking, occupation and smoking is harmful for health, occupation and smoking increases death risk are significant. Bivariate analysis shows that the habits of smoking whose occupation is service holder, small shopkeeper, businessman, day laborer and agriculture is more than whose occupation is students and they think smoking is harmful for health. Keywords: Smoking, tobacco, rural area, Tangail district, BangladeshCite this Article Md. Binyamin, Md. Ramjan Ali, Shayla Naznin, et al. The Causes of Smoking and Smoking Related Factors in Santosh a Rural Area in Tangail District, Bangladesh: A Case Study. Research & Reviews: Journal of Statistics. 2017; 6(1): 5–17p.
       
      PubDate: 2017-04-11
      Issue No: Vol. 6 (2017)
       
  • The Binormal ROC Curve and it’s Area Under the Curve (AUC): Made
           Simple
    • Authors: Ehtesham Hussain
      Abstract: In the field of biomedical diagnostic tests, receiver operating characteristic (ROC) curve and its summary measure has become the standard tools for this purpose and their use becoming increasingly common in other fields such as, biosciences, geosciences, experimental psychology, psychology, atmospheric sciences, finance, machine leering and sociology. Focusing on biomedical field, frequently a plot made of sensitivity (True positive rate; TPR) and (One-minus specificity; False positive rate; FPR) as the threshold to ranges overall possible values, such plot is called an ROC curve. Assessment of the performance of diagnosis test can be achieved by: (a) ROC curve, (b) Area under curve (AUC). Among practitioners most widely used is the, binormal ROC curve, which is a theoretical and a classical model. However, the expressions for ROC curve and AUC are not transparent because of appearance of certain integrals, which make its computations cumbersome for practitioners. In this note, we investigate some easy approximations, useful for practitioners available in the literature to cope with these mathematical difficulties. Keywords: Area under curve (AUC), binormal ROC curve, distribution function, sensitivity, specificityCite this Article Ehtesham Hussain. The Binormal ROC Curve and it’s Area Under the Curve (AUC): Made Simple. Research & Reviews: Journal of Statistics. 2017; 6(1): 1–4p.
       
      PubDate: 2017-04-11
      Issue No: Vol. 6 (2017)
       
 
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
 
Home (Search)
Subjects A-Z
Publishers A-Z
Customise
APIs
Your IP address: 54.167.231.97
 
About JournalTOCs
API
Help
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-2016