# Questions tagged [modelling]

Questions on how to represent real-world or non computer science problems with computer science tools.

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### Peer grading design - choosing a graph, to get accurate rankings/ratings

Background. I am writing some code for semi-automated grading, using peer grading as part of the grading process. Students are given pairs of essays at a time, and the students have a slider to choose ...
• 203
5k views

### How to determine likely connections in a social network?

I am curious in determining an approach to tackling a "suggested friends" algorithm. Facebook has a feature in which it will recommended individuals to you which it thinks you may be acquainted with. ...
• 621
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### What randomness really is

I'm a Computer Science student and am currently enrolled in System Simulation & Modelling course. It involves dealing with everyday systems around us and simulating them in different scenarios by ...
• 343
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### How to impose Euclidean distance constraint in a constraint satisfaction problem without quadratic constraints?

Best reference I could find is this one. However, I could not quite understand this one since there is no numerical example. What I am trying to achieve with one sentence How can I answer the ...
• 1,445
621 views

### Dynamic Shortest Path with Linear Programming

Consider a grid with $x=5$ columns, $y=5$ rows, and $T$ timesteps. There are $N=2$ agents in this grid, which can move vertically or horizontally. The positions of each agent $x$ at timestep $t$ is ...
• 160
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### System Identification vs Machine Learning for dynamic system modelling

So I found another discussion regarding this, but the answers did not fully separate the differenced between SID and ML. Hopefully a discussion here can shed some light on some larger differences both ...
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1 vote
I have a model that considers real values and that uses a binary variable $x$. In this model, the following conditions should apply: x= \begin{cases} 0, & \text{if}\...