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Questions tagged [modeling]

Modeling is the constructing and manipulating abstract (mathematical and/or graphical) representations of economic, engineering, manufacturing, social, and other types of situations and natural phenomenon, simulated with the help of a computer system.

Modeling is the construction and manipulation of abstract (mathematical and/or graphical) representations of economic, engineering, manufacturing, social, and other types of situations and natural phenomenon, simulated with the help of a computer system.

2023 questions
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Django - modeling - multi-table reference

SOS - HELP : I am newbie in django ( I came from PHP (Laravel)): I need modeling the data : I have same models they are named Sources like(IOT, Sensosr, Totens, app etc..) each source has your particularity(conection params) and similarity, then…
Adilson Santos da Rocha
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How do i access the nodes for text in blender?

I was looking for a way to animate text in blender, i found a way but the way it was done used nodes involving the text object, how can i access this set of nodes? here is my blender screen: (don't pay attention to what i'm doing)
R4nsomW4re
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Get fitted effects from a model with an rcs term

I would like to get fitted values from a linear model that includes a restricted cubic spline term fit via rms::rcs(), to pass into an effects plot. The issue is that the package I typically use to get fitted values, effects, throws an error when I…
Dan Villarreal
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How to model a consitent database in alloy?

Alloy newbie here. I'm trying to model a medical database containing user and some medical information. sig User{ name: one String, surname: one String, socialNumber: one String, address: one String, age: one Int, …
Baratz96
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How is an if statement possible with decision variables in CPLEX

How can I formulate my model that it undertakes a maintenance at 450 and a cleaning at 150? forall(w in W, t in T, s in S, p in P, m in M) (450<=hub[m][w][t][s])<=(b_maint[w][m][t][s]==1); forall(w in W, t in T, s in S, p in P, m in M) …
NadineL
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Generating code from a uml model(activity, statechart)

I need to generate java code from uml. I tested different modeling Tools such as modelio, eclipse modeling framework emf, visual paradigm.... However all of these help me to generate java code from class diagram, which will only help me in…
fatima
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Tensorflow: Does tf.estimator.DNNClassifier include a summary for training accuracy?

I'm currently using tensorflow's built in DNN classifier (tf.estimator.DNNClassifier). Got the model to run successfully however when I view the summary scalars on tensorboard, it literally has everything I need except for training accuracy. I…
MajesticKhan
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Unexpected Instance found for Alloy specification

I tried my first steps in modelling with Alloy and have come across a problem I cannot get my head around. I have the following spec: module tour/AddressBook1 sig Name, Addr{} sig Book { addr: Name->lone Addr } // operation: adds a (name,…
Jan Eckert
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MATLAB R2017b. NARX neural networks - the numbers of input signals and networks inputs do not match

Im trying to make some basic NARX Neural Network - just SISO. I am using MATLAB R2017b and Neural Networks Toolbox. The thing is that I need no delays at input and delays at feedback, so I can't use built-in app. I created a net by using: net1 =…
maksylon
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SAS - Model Validation - Kevin Kennedy

So I'm having trouble getting what appears to be a fairly common model validation macro to run with my code. Here's the code: %macro hoslem (data=, pred=, y=, ngro=10,print=T,out=hl); /*--- Macro computes the Hosmer-Lemeshow Chi Square Statistic for…
user8570312
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What is a good StringTemplate plugin for Eclipse, so i can do cod gen?

I'm working on a eclipse-based model-based tool. I am not using UML/SysML but i created my own DSML (= component architecture, whereby components have a behavior, modeled using state automatons). What I want to do now is to be able generate code…
JennyDong
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Detect Page Layout using Machine Learning

i try to make An application that used to tag page something like HTML Pages is there is a way using ML to detect and identify the layout of the page Headers , tables , Footer or it should only using AI Algorithms can any one help me in this…
Ahmed Salem
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Stepwise Logistic Regression Results In Only The Intercept in RStudio

I'm trying to model market share (dependent variable) which is between 0 and 1. My boss told me to use Logistic Regression, but when I use the stepwise logistic regression with the backwards direction, my final model is only the intercept. Is this…
JVMaverick
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What is the best way to restrict strings in an Object Oriented model?

I need to select a modeling method for documenting extensions to an existing collection of web services. The method/tool needs to be used by tech business analysts. The existing API is defined in XML Schema. XML Schema work well with the one…
David W
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Interpretation Of Poisson regression model output

I have made a poisson regression model to count the number of claims made by a policy holder over his/her policy period. The predicted values are float-point values which cannot be interpreted as one cannot have a fractional number of claims. Given…
Niranjan
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