Mohammad S. Jalali

13 Questions 19 Answers 0 Followers

Questions related from Mohammad S. Jalali

Do you know of any general/comprehensive list of research topics & subtopics in health?

I'm looking for a list of research topics along with subtopics in health. Medline (https://medlineplus.gov/healthtopics.html) provides a good high-level list but if you click on any of the topics,...

09 September 2017 7,512 6 View

Any suggestions on this formulation for resource allocation?

General idea: Lets say there's a finite supply (S) of resources which should be allocated to two tasks based on their demands, D1 and D2. If Supply is larger than total demand (D), each task...

02 February 2016 1,685 4 View

Why many organizations don't take cyber-security seriously?

Despite the potential increase in both incidents and risks, many organization still don't take cyber-security seriously and as a result not much is invested in cyber-security capability...

02 February 2016 2,385 9 View

Survey design: do you show construct names to your survey respondents?

We have a questionnaire including several constructs and each construct contains four questions. I have a discussion with a colleague of mine who believes that construct names should be visible on...

08 August 2015 6,157 16 View

How to partition a matrix into components that are independent and and those that are linearly dependent?

I'm going to partition a symmetric matrix (covariance matrix) into columns/rows that are independent. Analysis of eigenvalues was what I had in mind but I have difficulty mapping out...

05 May 2014 880 2 View

How to estimate covariance matrix when data are highly correlated?

There are many examples with highly correlated data; as a result, the determinant of the covariance matrix of moments becomes very small (e.g. in an example the determinant of the covariance...

05 May 2014 3,640 4 View

How to sample multivariate data based on specific characteristics of interest?

I need to sample 'n' individual data from a large population data set but the sample should follow specific specifications of my interest. As a simple example, let's assume that the population...

02 February 2014 2,625 8 View

What criteria can I use for model selection in Indirect Inference and Method of Simulated Moments?

I've been using J-test for model selection but apparently it's not a good measure when models have different degree of freedoms. To my understanding, Akaike information criterion (AIC) or Bayesian...

01 January 2014 6,834 4 View

Do you agree that there will be almost no poor countries by 2035?

Bill & Melinda Gates Foundation has just released its 2014 annual letter in which Bill Gates argues against three myths that block progress for the poor. If you haven't seen the letter yet, check...

01 January 2014 707 10 View

What are the most interesting and challenging phenomena to model?

I'm putting together a list of ongoing modeling works (from different research areas) which try to understand and predict the behavior of an interesting phenomenon. Just a few examples to kick...

11 November 2013 8,826 11 View

How do you aggregate statistical findings from models with different functional designs?

I'd like to aggregate statistical findings from heterogeneous studies that report regression models with different functional designs. All regressions have the same dependent variable (e.g. Y as...

11 November 2013 3,491 3 View

What are the differences between the use of 'Method of Simulated Moments' and 'Indirect Inference'?

I'm interested in hearing your experience on these two estimation techniques specially on the choice of moments and auxiliary statistics.

11 November 2013 6,935 3 View

Is obesity really a disease?

In June 2013, the American Medical Association classified obesity as a disease. There are many opinions on this matter that say just the opposite. What are your thoughts? Do you believe that...

11 November 2013 2,907 16 View