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K.Kalyanaraman
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  • Chennai, Tamil Nadu
  • India
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K.Kalyanaraman's Page

Latest Activity

Sriram left a comment for K.Kalyanaraman
"This is for Prof.K.Kalyanaraman - Sir, We are a small team of Data Science professionals working for a software company here in Chennai. We would like to contact you. Pl. email me at [email protected] or call me 95001 74205. Thank you - Sriram."
Jan 14, 2013
K.Kalyanaraman commented on Vincent Granville's blog post The 8 worst predictive modeling techniques
"Prediction and Statistical inference are two different issues. Robustness is concerned with parameter estimates through least square methods; the resulting sampling distributions of the estimators do not vary much even if linearity is violated to…"
Sep 30, 2012
K.Kalyanaraman commented on Vincent Granville's blog post The 8 worst predictive modeling techniques
"In continuation to my comments, I append a data set with 4 variables; Y explained variable and X1, X2 and X3 explanatory variables. Try to generate all possible regressions i.e., Y on X1; Y on X2; Y on X3; Y on X1, X2; Y on X1, X3; Y on X2,X3; Y on…"
Sep 29, 2012
K.Kalyanaraman commented on Vincent Granville's blog post The 8 worst predictive modeling techniques
"It is good to see people have started seriously with statistical methods. In fact al most all statistical techniques are Linear. Moreover, linear regression is a conditional procedure; conditional on data. In fact the definition itself says "…"
Sep 29, 2012
Biswajit Nayak replied to K.Kalyanaraman's discussion Business Analytics:Management, Computer Applications and Statistics in the group Indian Chapter
"I completely agree with you. Business Analytics content/scope has potential for full fledged discipline/curriculum may vary from Diploma to masters with duration of 10 to 24 Months. I am collecting relevance content to coin this idea to…"
May 24, 2012
K.Kalyanaraman commented on Vincent Granville's blog post Correlation or Causation? | Bloomberg Businessweek
"Correlation is one of the more misused methods in data analysis. In all the above cases correlation has no meaning"
Dec 29, 2011
K.Kalyanaraman replied to Triveni Hiremath's discussion Gamma Models in insurance
"It seems that the distribution is positively skewed; seen from details given by you. Then use the data to fit a Gamma Distribution using say Method of moments or MLE. Once getting the parameters, they may give some information and the associated…"
Aug 4, 2011
K.Kalyanaraman replied to Berkeley Sarah's discussion One indicator variable, two categories, statistically significant test?
"That is true. The two tests, test for proportion and Chisquare goodness of fit are one and the same in these cases.    P = 0.5 Assume sample size 100 and males are 45 and females are 55. Test for proportion    Z =…"
Jul 28, 2011
K.Kalyanaraman replied to Vincent Granville's discussion Automated sentencing based on analytics
"As it stands that it may be possible to generate such a system. May be it takes some time before making a sketch. However, will this be a useful effort as there are specific laws protecting everyone and demands human intervention? May be this is an…"
Jul 28, 2011
K.Kalyanaraman replied to Triveni Hiremath's discussion Gamma Models in insurance
"Observe the histogram for claim severity and verify whether the model can be used. Or provide more information about mean, median and standard deviation of claim severity."
Jul 28, 2011
K.Kalyanaraman replied to Berkeley Sarah's discussion One indicator variable, two categories, statistically significant test?
"The two groups are to be compared for gender, a categorical variable in Nominal scale. The associated hypothesis may be any of the following depending upon observed proportions of male/female and the problem. If the problem is to compare the general…"
Jul 28, 2011
K.Kalyanaraman replied to Pavan Kumar Pilla's discussion LGD calculation
"You may attempt with Box Cox transformation. vide Wikipedia."
Jul 27, 2011
K.Kalyanaraman replied to Berkeley Sarah's discussion One indicator variable, two categories, statistically significant test?
"Please look at your question. There are two categories and you want to see if there is any difference between them, but with respect to what! Please say more about what you measure with the items in each group."
Jul 27, 2011
K.Kalyanaraman added a discussion to the group Indian Chapter
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Business Analytics:Management, Computer Applications and Statistics

There are many discussions on the topic Business Analytics. A perusal of some of them gives an impression that BA is a subject related to Statistical Methds. I think that it includes a lot of subjects which could be broadly classified into three major headings: Management,Computer Applications and Statistical Methods. Thre seems to be no efforts to organize them formally. There are topics - Analytic Application, Balanced Scorecard, Cube, Dashboard, Data Mart,  Data Mining, Data Warehouse,…See More
May 30, 2011
K.Kalyanaraman replied to DataLLigence's discussion Top 10 modeling mistakes
"In my view it is due to wrong perception of what a model is. Take the definition, study their feasibility with the assumptions required and define the problem first. I include a small listing of possible situations, which can be used to add, delete…"
Jan 14, 2011
K.Kalyanaraman replied to Subhadip Roy's discussion What is the best way to convert probability of default into a risk score ranging from 0-1000 ?
"Under some very general assumptions the probability may be converted into a risk score ranging from 0 to 1000. The main assumption to be considered is that the risk score(RS) is Normally Distributed. (!) Then, mean will be in the middle, say 500,…"
Sep 23, 2010

Profile Information

Short Bio:
Graduated in Statistics from Madras University served as a professor in the Department of Statistics, University of Kerala, Trivandrum for about 35 years. Currently in Chennai and periodically visiting different institutes in Kerala and Tamil Nadu to teach QT and RM. Have exposure to computers from 1972 onwards. Guided a number of Researchers for their statistical data analysis requirements and produced number of research papers and monographs.
Field of Expertise:
Business Analytics, Predictive Modeling, Data Mining, Biostatistics, Operations Research, Quant, Econometrics, Statistical Programming, Statistical Consulting, Medical Statistics, Environmental Statistics, Artificial Intelligence
Years of Experience in Analytical Role:
40 years
Professional Status:
Technical, Retired, Professor, Consultant
Interests:
Other
Your Company:
private
Industry:
education
How did you find out about AnalyticBridge?
from Krishnamurthy Prabhakar

Comment Wall (3 comments)

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At 9:33pm on January 14, 2013, Sriram said…

This is for Prof.K.Kalyanaraman - Sir, We are a small team of Data Science

professionals working for a software company here in Chennai. We would like to contact you. Pl. email me at [email protected] or call me 95001 74205. Thank you - Sriram.

At 10:05am on September 24, 2010, Rajesh Viswanath said…
Thank you prof...
At 11:21am on August 3, 2010, Hareesh Ramanathan said…
Thank you sir
 
 
 

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