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seen Jun 18 '12 at 0:41

Oct
28
comment Java library for SDP
Unfortunately Mosek does not solve semi definite programming problems (docs.mosek.com/kb/Can_MOSEK_solve_semi-definite_optimizati.html). I've decided to write a java interface to CSDP since it looks certain that there are no existing java interfaces.
Oct
27
comment Java library for SDP
@Igor in reply to (c): Harsh words! Well it depends where you are coming from. Sometimes you have to use someone's code that is only in java and sometimes you are willing to take a hit in perf for design reasons. Lets not get into that. About the java interface with C: I guess you are talking about JNI, I am aware of that.
Oct
27
comment Java library for SDP
@Igor: Your angry birds example does not have any intersection with MO. My post is not a math research question but chances that someone in MO community might have encountered this are higher than in SO. Anyways, feel feel to vote it down - let the votes decide.
Oct
27
comment Java library for SDP
I meant to say "small number of ppl at stackoverflow".
Oct
27
comment Java library for SDP
I tried stackoverflow prior to this. There is a very small number of people who use things other than cplex, so it wasn't fruitful.
Oct
27
asked Java library for SDP
Sep
18
revised Finding smallest ellipsoid that circumscribes over intersection of two ellipsoids that do not have common center
edited title
Sep
18
comment Finding smallest ellipsoid that circumscribes over intersection of two ellipsoids that do not have common center
Ah, that's a good point. I'll change tight to mean the smallest
Sep
18
revised Finding smallest ellipsoid that circumscribes over intersection of two ellipsoids that do not have common center
edited title
Sep
18
awarded  Commentator
Sep
18
revised Finding smallest ellipsoid that circumscribes over intersection of two ellipsoids that do not have common center
added 287 characters in body
Sep
18
comment Finding smallest ellipsoid that circumscribes over intersection of two ellipsoids that do not have common center
@Suvrit: Ah, we can assume that the ellipsoids intersect and they are "full" ellipsoids (not embedded in a subspace). @Joseph: But I do not want to compute the intersection itself which would be quite expensive. Also, this is the link to the W. Kahan paper I talked about in my question: cs.berkeley.edu/~wkahan/Ellipint.pdf
Sep
18
revised Finding smallest ellipsoid that circumscribes over intersection of two ellipsoids that do not have common center
edited title
Sep
18
asked Finding smallest ellipsoid that circumscribes over intersection of two ellipsoids that do not have common center
Aug
30
awarded  Disciplined
Aug
30
awarded  Organizer
Aug
23
accepted cayley transform for non-square matrices
Aug
23
comment cayley transform for non-square matrices
Hi Juliano, I used conjugate gradient on Stiefel manifolds. Your suggestion of writing any point on the Stiefel manifold as product of m x m unitary matrix with a fixed m x n Y_0 is very neat. cheers
May
30
awarded  Scholar
May
28
revised cayley transform for non-square matrices
edited tags