-
Hello All
I am a new user with little experience with cpp so be nice to me.
obj$fn and obj$gr in TMB examples return the function value to minimize, and its gradient.
obj$he() is there too, and it s…
-
To avoid excessive allocations in Hessian tracing, we can make a new set type holding a reference to a shared set, such that every intermediate scalar quantity shares the same pattern (as opposed to h…
-
The Hessian matrix could also be evaluated using finite difference method.
- Some info could be taken from https://en.wikipedia.org/wiki/Finite_difference#Relation_with_derivatives
- The matrix …
-
I'm having some performance issues with a modestly sized model (37 parameters). The fitting takes a rather long time and profiling revealed that 80% of time time is spend in calling ``coveranciance_ma…
-
FYI, I found a possible issue with the `sigP` parameter gradient while testing the gradient and Hessian for the 24layer model with P, C, and O models on.
**The Problem:**
The explicitly computed g…
-
现在在做国产中间件的适配,发现hessian存在两个版本,groupid不同,但是pakcage相同,在这个中间件下会报错,想问一下应该使用
```
com.caucho
hessian
```
还是
```
com.alipay.sofa
…
-
The Hessian of a function f is a symmetric matrix if f is smooth enough.
Is there a way of having this information made available? I guess not just by returning a SymmetricMatrix, due to type stabili…
-
Not sure if this is the right spot, sorry if not!
I would like to state (in my case for an optimization problem I would like to solve with ipopt) the equality constraints as a vector.
No problem doi…
-
It would be great to implement something like our QGT, but embedding the action of the hessian.
Most infrastructure is in place in `LinearOperator`, so it's all about writing the correct `matmul` u…
-
https://vuldb.com/?id.131250 ,这个问题有修复嘛,反序列化黑名单是否能再更新一波啊