13 Questions 25 Answers 0 Followers
Questions related from Anh Nguyen Duc
I would appreciate if anyone can give me titles of review paper or introductory level books on Real World Data/Evidence analysis, particularly for life sicence.
08 August 2015 4,199 0 View
I would really appreciate if anyone can give me a formal citation for this. I know this is a standard problem for which I also have a proof. However this is requried as a part of a more...
07 July 2015 1,142 4 View
Consider the following setting: g(y,V) = minw\in C(y-w)TV(y-w), C is a closed convex cone, V is positive definite and y is in Rn. Assume an appropriate norm for (y,V), would g(y,V) be continuous...
12 December 2014 2,640 8 View
For g(y,V,w)=(y−w)TV(y−w), for y in Rn, V is positive definite (e.g. variance matrix) and w is in a closed convex cone C in Rn. Obviously for every fixed y and V minw\in C g(y,V,w) exists But my...
12 December 2014 1,755 6 View
Does the projection of a vector $X$ in $\mathbb{R}^k$ onto a closed convex cone (positively homogenous set) $C$ in $\mathbb{R}^k$ with respect to a positve definite projection matrix $V$ always...
08 August 2014 6,744 12 View
I know it would be difficult to answer concretely but I would like to here from everyone's opinions and experience (I know this depends on the setting, but again a relative answer is also...
06 June 2014 2,336 9 View
I would like to know which textbooks would be best for giving an introduction to convex/conic optimization that provide the intuition for the following: - Lagrange multiplier - Dual/Primal...
03 March 2014 2,294 20 View
I have searched through the internet and found "Convex Polyhedron", "Convex Polytope". Are they the same thing? Plus it would be great if there is some elaboration on the properties of such object.
02 February 2014 8,735 6 View
Is there such a data set freely available, specifically in R? I tried to search in several packages and could find ones with interval censoring even current status data but not yet found any with...
01 January 2014 503 3 View
Does anyone know of a universal cookbook on sample size calculation for as many as possible scenarios (particularly in clinical research) ? Any help is greatly appreciated!
10 October 2013 6,355 21 View
I've tried to find the answer from various places: https://groups.google.com/forum/#!topic/sci.math/2DIwkFqATXE http://mathoverflow.net/questions/51761/does-fxgx-imply-fx-asymp-gx But I somehow...
10 October 2013 1,258 8 View
Does anyone know if there is any package in R that can offer non-parametric method for competing risks data sets with interval censoring? I have searched through the survival task view, but there...
10 October 2013 3,392 3 View
I know the supremum is measurable if \Theta is countable. So maybe this is what we should start with ? Any comments and answers are appreciated
09 September 2013 9,687 4 View