Questions tagged [applications]

For questions asking for real-world applications of specific concepts.

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4
votes
1answer
55 views

How to evalute the quality of a solver (beyond solution quality and time efficiency)?

I built a solver for a classic scheduling problem. It has some exact methods and some heuristics methods. I want to judge the quality of the work beyond time efficiency and solution quality. For ...
3
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1answer
62 views

Robust/Stochastic optimization deployed in real-world systems/applications

In an applied project we are working on currently, we want to use robust or stochastic programming in order to enhance the performance of the systems (by reference to certain metrics). As you may ...
0
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0answers
55 views

How to identify an MVP for house building?

I am trying to find a minimal viable product for house building company. I don't know what are the commonly used constraints. Intuitively, I would say that: There is a set of tasks. Each task has a ...
3
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0answers
60 views

Combining Machine learning and Operations research on a scheduling problem

I am wondering if there is any attempts of combining OR and ML in the following way. Priority-based rules are widely used in Resource Constrained Project Scheduling Problems. Is there a way to train ...
4
votes
1answer
57 views

Business/industrial applications of the single machine scheduling problem

There is a lot of resources talking about the applications of scheduling in business in general. I would like to know about the applications of the particular case of single machine scheduling. Any ...
5
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0answers
110 views

What are Operations Research applications for 'morally discussable causes'?

Out of curiosity, since I read this question What are Operations Research applications for 'good causes'? and thought it might be a good addition to it. What are Operations Research ...
23
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9answers
3k views

What are Operations Research applications for 'good causes'?

I am looking for applications of OR for good causes, possibly with some literature. I intend a good cause loosely defined in the sense that the scope is that of improving the well-being of others, e.g....
4
votes
2answers
374 views

Resource constrained multi-project scheduling problem and resource allocation

Problem description: The problem is an extension of the classic resource-constrained project scheduling problem. Here is a brief description: We have $m$ projects sharing a common pool of resources....
4
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2answers
121 views

VRP app as a Minimum Viable Product

In this post, Geoffrey De Smet and EhsanK pointed out the opportunities of VRP variants (e.g. mixed pick up and deliveries). If I want to build a Minimum Viable Product (software as a service app). ...
9
votes
1answer
146 views

Operations Research Apps for everyday use

Since I am confined and I have some free time, I am looking for ideas of OR applications in everyday life. What I've seen so far are apps like solving VRP, Production planning etc. that are mostly ...
7
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1answer
99 views

Design choices on how to implement several algorithms for the same problem

When one is interested in solving a problem but considering different objective functions the choice is easy, a class for problem, a class for solution and a class by algorithm then in the main ...
35
votes
9answers
5k views

What are the reasons OR industry projects fail?

You probably have done some OR projects within the industry or - if you are in academia - for the industry. I'm wondering if you've seen some patterns of why such projects fail (or at least do not ...
16
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4answers
3k views

What are the most-used technical skills in OR?

Apart from: modeling, "coding" the model and using an open source/commercial solver Implementing an approximation method (metaheuristics, greedy, etc.) Implementing exact methods (dynamic ...
6
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0answers
71 views

What are the top three applications (in terms of number of citations) of the “reverse search” algorithm of David Avis?

I can see that this algorithm is quite popular, and that one of the original papers now has 820 citations on Google Scholar. However, what are the most highly cited applications of it? If in Google ...
19
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7answers
5k views

Are programming languages necessary/useful for operations research practitioner?

This semester I will start teaching Programming in Python to Master students in Supply Chain Management. I would like to start the first lesson with "Why learning programming languages will be useful ...
15
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4answers
495 views

Case Studies and Real Problems for Teaching Optimization and Modelling

It is that dreadful time of the year when I am prepping classes and over the last few terms I came to the realization that I need to significantly beef up the practice-oriented content of my lectures. ...
14
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1answer
319 views

Are there any real-world problems where quadratization helps to solve something that couldn't have been solved without quadratization?

The closest thing I know is the computer vision problem, in which an image is de-blurred and/or de-noised by quadratizing a quartic problem into a quadratic optimization problem (QUBO) and then the ...
12
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2answers
363 views

How to choose an architecture for an OR web app and how to learn the tech stack associated?

After carefully reading the answers to my previous post I decided to opt for developing and deploying an app as a web service. I watched a talk on optimization apps. It suggests using the following ...
37
votes
9answers
3k views

Are there any OR challenges that are similar to kaggle's competitions?

I am looking for previous OR challenges. My goal is : Applying my knowledge while solving problems suggested in those competitions; and/or If possible, reading solutions posted by participants. I ...
5
votes
2answers
266 views

Bridge the gap between theory and practice in Integer Programming

I've finished Wolsey's book on Integer programming. It's a theoretic book. I aim to learn how the ideas presented in the book can be applied to solve real-world non-academic problems. I am looking ...
13
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4answers
2k views

Is there a SQL/English like language that lets you define formulations given some data?

It would be very useful for beginning and non technical users to be able to define models in a way that was natural for them. Further this could perhaps assist generating some kind of generic ...
13
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7answers
839 views

What are the examples (applications) of the MIPs in which the objective function has nonzero coefficients for only continuous variables?

I'm specifically looking for real applications of the following form of MIP: $$\max\,Cx$$ subject to: \begin{align}Ax +By &= D\\Ax &= E\\By &= F\\ x &\ge 0\\ y &\in \mathbb{...
10
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2answers
147 views

Are there examples of spatially explicit MIP problems?

Disclosure: I am an MSc student in economics, but not an expert by any means in OR. I am trying to model a spatial MIP problem of an invasive species similar to this academic paper, however, my ...
18
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7answers
662 views

Deploying OR solutions and shipping projects

My background is a bachelor in mathematics. I learned basics OR on my own using the following : Introduction to Operations Research by F. Hillier and G. Lieberman Integer programming by l. Wolsey How ...
21
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7answers
3k views

Applications of pure mathematics in operations research

This is a question that I've been thinking about for a while, as my background is mainly on pure mathematics. From a few OR papers that I've looked at, I could identify some areas of pure mathematics ...
19
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8answers
5k views

How to innovate in OR

I am a graduate student in OR and I want to build one or two independent projects that go beyond academic projects in my university. I would like to target average people and/or those in the industry ...
9
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1answer
146 views

Structural Optimization

Currently, I am working on a problem in which I need to use MILP to model equilibrium equations in a lightweight structure. Although this is an application based question, I wondered if there is a ...
13
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2answers
224 views

Application of complex numbers in Linear Programming?

The theory surrounding Linear Programming is based on variables, bounds and coefficients that take on values in $\mathbb R$, the set of real numbers. I have long wondered whether there might be ...
22
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1answer
345 views

Usages of logarithmic mean in optimization

I have recently learned about the logarithmic mean $$\frac{x-y}{\ln(x)-\ln(y)},\quad x,y > 0.$$ It is used a lot in chemical engineering optimization models e.g. see slide 15 of Developing ...