Difference between revisions of "Optimization examples"
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Revision as of 12:36, 13 March 2019
A brief description of the optimization methods implemented in BioUML as well as their application to non-linear models of biochemical processes can be found in the section Optimization problem.
Here we give some examples of how to use the BioUML software for parameter estimation.
Creation of an optimization document
BioUML allows performing parameter estimation of biochemical models represented as Diagram document via creation of a special optimization document.
You can start creating this document in two ways.
- Go to the Data tab of the repository pane and select the appropriate directory to store your data in. For our example, we will use data > Examples > Optimization > Data > Documents. Click the left mouse button on the selected directory and choose the item New optimization in the pop-up menu.
- Go to the Analyses tab of the repository pane. Find the list of available optimization methods in the tree under analyses > Methods > Optimization. Click the left mouse button on a method by which you want to perform parameter estimation and select New optimization in the pop-up menu.
After following one of these instructions, the input dialog opens. Сlick to the field Create optimization document and type a name for your optimization document. Then click to the field Diagram and indicate the diagram wchich parameters you want to estimate. In our example, we will use data/Examples/Optimization/Data/Diagrams/diagram_1A. When you click OK, a new optimization document appeares in the selected directory of the repository pane and the corresponding tab opens in the document pane to start the optimization execution.
The existing document can be opened by the double-click. If you want to remove a document, click the left mouse button on it and select the item "Remove".
The working area of the optimization document includes three main windows. The first window located in the lower right corner of the framework is designed to select the optimization options. It includes the following tabs:
-
Optimization - contains the buttons to start
and stop 
parameter estimation,
to draw the plots for visual presentation of results 
- Parameters
- Experiments
- Constraints
- Simulation
- Optimization examples simulation tab.png
It also informs you about the calculation progress and the best (smallest) values found for the objective and penalty functions up to this time. To the left of this window you can see a short description of the chosen optimization method and links to the base papers for this method programming. Finally the upper right window is intended to store parameters for fitting.
