modeling Questions
5
Solved
I'm looking to create a db model of various units and their relation to each other. For instance, 36 inches = 3 feet = 1 yard = .9144 meters etc. This table would also store cups in ounces, pounds,...
10
I've been out of the modeling biz, so to speak, for a while now. When I was in college, most of the models I worked with were written in FORTRAN, which I never liked. I'm looking to get back ...
Fritzfritze asked 24/9, 2010 at 23:12
3
Solved
Both of them represent the different states a system can take. So what is the difference of Petri Nets and Finite State Machines? When do I use Petri Nets, and when do I use Finite State Mach...
Fortify asked 30/12, 2018 at 19:29
8
Solved
I'm tinkering with some cross-validation code from the PySpark documentation, and trying to get PySpark to tell me what model was selected:
from pyspark.ml.classification import LogisticRegression...
Limey asked 18/4, 2016 at 14:46
3
I've being searching for a solution for recurring events, so far I've found two approaches:
First approach:
Create an instance for each event, so if the user has a daily event for one year, it wo...
Iolite asked 6/5, 2018 at 20:36
2
Solved
I have the following two items which I need to store in dynamodb
Artists
Songs
The artists have an ID (unique for artists), name and gender. The Songs have an ID (unique for songs), title, genr...
Loudish asked 4/4, 2020 at 15:4
3
Solved
I just created a model using scikit-learn which estimates the probability of how likely a client will respond to some offer. Now I'm trying to evaluate my model. For that I want to plot the lift ch...
Coherent asked 9/3, 2017 at 15:28
1
I have heard people talk about "modeling on the residuals" when they want to calculate some effect after an a-priori model has been made. For example, if they know that two variables, var...
2
Solved
After reading about C4 model and listening Simon Brown's talk I still don't understand how to use it in practice.
AFAIK, the main contribution of C4 model is "agreement" on simple abstrac...
3
Solved
I have a set of multicollinear variables and I'm trying to use ridge regression to tackle that. I am using the glmnet package in R with alpha = 0 (for ridge regression).
library(glmnet)
I have ...
Rumrunner asked 1/7, 2017 at 14:26
1
Solved
I have a project which requires me to create a UML Class Diagram. What I have from the previous tasks in the same project is an ERD using UML notation. Also worth noting, this project is rela...
Bradney asked 30/1, 2021 at 6:40
3
I am new to the subject "modeling of physical systems". I read some basic literature and did some tutorials in Modelica and Simulink/Simscape. I wanted to ask you, if I understand the following con...
Wonderment asked 20/5, 2016 at 19:14
4
Solved
I am curious, what are the differences between Domain Driven Design and Model Driven Architecture? I have the impression they have certain similarities.
Could you enlighten me?
Thanks
Holly asked 12/11, 2010 at 16:30
1
Solved
I'm drawing a class UML for a JAVA software design. I don't really understand what is a stereotype. The formal definition:
The stereotype is a profile class which defines how an existing metaclass ...
Gemeinschaft asked 7/9, 2020 at 13:35
1
Solved
My application needs to save multiple versions of an uploaded Image. One high quality image and another one just for thumbnails use (low quality).
Currently this is working most of the time but som...
4
I know in general :
an interface is a reference type, it is similar to a class,
that can contain only constants, method signatures, default methods, static methods, and nested types. Method bodie...
3
Solved
When searching online for object oriented concepts such as the composite design pattern I often found them represented in the LePUS3 notation. I am not really familiar with this
modeling language....
5
I recently installed Papyrus and attempted to follow the tutorial for creating a model and generating Java code off it.
Unfortunately, I'm pretty much stuck right at the beginning. In the class de...
6
Solved
I was hoping you could tell me what the advantages and disadvantages of BPMN are in a developers perspective.
I'm comparing UML with BPMN and a found a bunch of advantages and disadvanteges for UM...
2
Solved
In my business we have a "Data Store" where data is stored (e.g. database, flat file, etc) and a "Data Provider" who delivers the data (e.g. human, sensor, etc).
To model this in UML is no proble...
13
Solved
Could UML be used to program a computer system on its own, without a supporting implementation language, e.g. diagrams straight to machine code (maybe via C or C++ etc), without human coding interv...
Eureetloir asked 21/3, 2010 at 3:5
4
Solved
I would like to ask what is the difference between a subsystem and a component in the UML sense?
3
I´m twisting my head now for a while and don´t get to a final solution. So I hope I might find some exchange or help on how to solve this issue here on an architectural level.
I´m currently facing...
Sicular asked 4/9, 2017 at 19:15
2
Solved
I am having problems designing a proper UML activity diagram.
I've seen similar questions and possible answers:
How to present a loop in activity diagram?
Even with these answers I am having dou...
Kickshaw asked 4/4, 2019 at 7:26
7
Solved
Can anybody recommend a class library or a design pattern that models amounts of Money?
I guess it should support:
multiple currencies
a mechanism to indicate the number of decimals
math (...
Bohlin asked 10/11, 2010 at 14:42
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