public issueshttps://git.rwth-aachen.de/groups/avt-svt/public/-/issues2023-07-26T13:21:55+02:00https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/issues/3MAiNGO not always converging2023-07-26T13:21:55+02:00krisvillezMAiNGO not always convergingI am not sure if this is a bug or something that can be expected normally. I found that the MAiNGO-based minimum of the Gaussian process mean prediction is not always the actual (global) minimum. I some rare cases one can find a better o...I am not sure if this is a bug or something that can be expected normally. I found that the MAiNGO-based minimum of the Gaussian process mean prediction is not always the actual (global) minimum. I some rare cases one can find a better optimum by taking the MAiNGO-based solution as the initial value for a local optimizer. I produced the figure below by modifying [example_training_gp_pymelon.py](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/gaussian%20process/training/python/example_training_gp_pymelon.py) slightly. I use the SLSQP solver in SciPy to search locally around the optimum obtained with MAiNGO. In this particular instance, a better optimum can be found this way.
I am curious if the precision of the MAiNGO software can be influenced in some way.
![reproducible_example](/uploads/0254b08465a65fd2c7b6e9ad9704c506/reproducible_example.png)
This is the modified code to reproduce this issue:
[example_training_gp_pymelon.py](/uploads/2bb3ba4167010c73aed5910b29602edf/example_training_gp_pymelon.py)https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/issues/2Univariate GP - suggested code change2023-07-26T13:21:43+02:00krisvillezUnivariate GP - suggested code changeThanks for a fantastic package!
I was playing around with it and found the following issue - I hope this is helpful to report.
I was trying to modify [example_training_gp_pymelon.py](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/bl...Thanks for a fantastic package!
I was playing around with it and found the following issue - I hope this is helpful to report.
I was trying to modify [example_training_gp_pymelon.py](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/gaussian%20process/training/python/example_training_gp_pymelon.py) to use a univariate input model.
I needed to modify two lines of code to make this work:
In [utils.py](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/gaussian%20process/training/python/utils.py):
1. [L57](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/gaussian%20process/training/python/utils.py#L57) : replace ".squeeze" with ".flatten" so length scale parameters remain array-like
2. [L108](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/gaussian%20process/training/python/utils.py#L108) : replace ".squeeze" with ".flatten" so length scale parameters remain array-like
The original code for the 2D problem remains functional with the change. I would suggest to make the above changes in the code.https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/issues/1IDENTIY vs IDENTITY2023-07-26T13:21:29+02:00krisvillezIDENTIY vs IDENTITYThanks for a fantastic package!
I was playing around with it and found the following issue - I hope this is helpful to report.
In this file at line 43:
[melonpy L43](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/common...Thanks for a fantastic package!
I was playing around with it and found the following issue - I hope this is helpful to report.
In this file at line 43:
[melonpy L43](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/common/src/melonpy.cpp#L43)
one reads:
`.value("IDENTIY", melon::SCALER_TYPE::~~IDENTITY~~)`
but this should probably be:
`.value("IDENTITY", melon::SCALER_TYPE::IDENTITY)`
This causes problems when executing line 13 in this file:
[utils.py L13](https://git.rwth-aachen.de/avt-svt/public/MeLOn/-/blob/master/gaussian%20process/training/python/utils.py#L13)
Line 13 reads:
`scaler_data = pymelon.SCALER_TYPE.IDENTITY`https://git.rwth-aachen.de/avt-svt/public/maingo/-/issues/4Minor bug with MAiNGO Model Writer2023-07-06T10:04:34+02:00tk3016Minor bug with MAiNGO Model WriterOn using MAiNGO Model Writing language option to automatically write GAMS file, MAiNGO model writer sometimes produces a GAMS file with a syntax error relating to the position of the semi-colon.
I am attaching the MAiNGO ALE input file a...On using MAiNGO Model Writing language option to automatically write GAMS file, MAiNGO model writer sometimes produces a GAMS file with a syntax error relating to the position of the semi-colon.
I am attaching the MAiNGO ALE input file and the corresponding GAMS and LST file for reference.
[N2_Misc_max_freq_RS.txt](/uploads/54b53e4a6e4d9a0d27f8106ac2d26c80/N2_Misc_max_freq_RS.txt)[N2_Misc_max_freq_RS.gms](/uploads/20cfbcfd6812e09f19df0d84f3ffb688/N2_Misc_max_freq_RS.gms)
[N2_Misc_max_freq_RS.lst](/uploads/b7dbac7e61dece8f02a750a2541c7d0f/N2_Misc_max_freq_RS.lst)Clara WitteClara Wittehttps://git.rwth-aachen.de/avt-svt/public/maingo/-/issues/3Link to documentation is broken2022-01-04T10:30:24+01:00Amedeo CerutiLink to documentation is brokenThe link leading to the built documentation file is broken in both pypi and gitlab (https://avt-svt.pages.rwth-aachen.de/public/maingo):
Error message:
502 Bad GatewayThe link leading to the built documentation file is broken in both pypi and gitlab (https://avt-svt.pages.rwth-aachen.de/public/maingo):
Error message:
502 Bad Gatewayhttps://git.rwth-aachen.de/avt-svt/public/mooc-mathematical-optimization-for-engineers/-/issues/1Lab 1 Problem Statement Image Is not Loading2021-10-11T10:18:04+02:00Ghost UserLab 1 Problem Statement Image Is not LoadingDear Sir,
Thank you for such wonderful teaching material for us to go through.
I could not load the image which explains the flow rates in between the turbine stages.
I am using Google chrome in windows.
Thank you so much.Dear Sir,
Thank you for such wonderful teaching material for us to go through.
I could not load the image which explains the flow rates in between the turbine stages.
I am using Google chrome in windows.
Thank you so much.https://git.rwth-aachen.de/avt-svt/public/maingo/-/issues/2pymaingo <--> maingopy2021-06-24T19:42:55+02:00DavidWalzwalz@physik.rwth-aachen.depymaingo <--> maingopyThanks for the python bindings!
The pypi page for [maingopy](https://test.pypi.org/project/maingopy/) refers to the README for documentation and the examples folder.
The only [python example](https://git.rwth-aachen.de/avt.svt/public/ma...Thanks for the python bindings!
The pypi page for [maingopy](https://test.pypi.org/project/maingopy/) refers to the README for documentation and the examples folder.
The only [python example](https://git.rwth-aachen.de/avt.svt/public/maingo/-/blob/master/examples/01_BasicExample/examplePythonInterface.py) imports `pymaingo` instead of `maingopy`.https://git.rwth-aachen.de/avt-svt/public/maingo/-/issues/1Update documentation to require gcc version >= 82023-05-26T13:53:53+02:00Ghost UserUpdate documentation to require gcc version >= 8When installing the software I encountered the mistake described in this StackOverflow [issue](https://stackoverflow.com/questions/39231363/fatal-error-filesystem-no-such-file-or-directory/39231488) in particular in the file `dep/melon/c...When installing the software I encountered the mistake described in this StackOverflow [issue](https://stackoverflow.com/questions/39231363/fatal-error-filesystem-no-such-file-or-directory/39231488) in particular in the file `dep/melon/common/src/FileParser.cpp`
This was solved by installing a newer version of gcc and gfortran (details here in case you want to provide those [details](https://linuxconfig.org/how-to-switch-between-multiple-gcc-and-g-compiler-versions-on-ubuntu-20-04-lts-focal-fossa) ).https://git.rwth-aachen.de/avt-svt/public/genericeso/-/issues/1Revise import of modelWoBatch.dll in GenericEsoTestFactories.hpp2023-06-20T12:52:06+02:00Jan Christoph SchulzeRevise import of modelWoBatch.dll in GenericEsoTestFactories.hpp