Common interests

Dear AIMMS Community: I am using BARON solver to solve a continuous non-convex optimization problem. In small cases, I can see that BARON is finding the global optimum and wherever it is verifiable I am verifying that the results are consistent. So I believe my current modeling is correct. Howev...

21 hours ago

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arasselvi Explorer

Global Optimization Solver Lower-Upper Bounds

Solved

Developers (Math, OR, programming)

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2 days ago

juliolema

COVID-19 relief efforts: pro bono support.

Dear all, I write on behalf of baobab soluciones, an AIMMS partner based in Madrid. Since the onset of the pandemics we have decided to support organizations and public authorities and offer our solution development services pro-bono for crisis relief projects. We were thinking route optimisation,...

Supply Chain

9 119 0

6 days ago

Hi! I have just build my first model on AIMMS and when I tried to run the model, the next following error appeared: If the option “Data management style” is set to “Disk files and folders”, the procedure CaseCreate is not valid. Would anyone know how I can solve this problem? Thank you very mu...

Max Lomba Vrouenraets Ace

CaseCreate Error

Solved

Supply Chain

0 70 4

Dear All, I want to develop Routing Problem Model using Ant-Colony method, does AIMMS possible to generate the method? Are there any example that anyone could share..? Thank you very much

7 days ago

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Farhan Surury Explorer

Ant-Colony Optimization

Developers (Math, OR, programming)

0 115 8

9 days ago

Hi everyone. I'm starting with Aimms, I have two questions First How can I index a variable with an initial value or constraint? . For example X (i) is the dependent variable of the set (for example 4 things) with index i. And what I need is X (1)> = 50 X (2) <= 250 Variable X { Index...

Manuel Explorer

Indexing a variable with an initial value or constraint

Solved

Developers (Math, OR, programming)

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Study 6: Accelerate Adoption of Relevant Customer Channels This study can help you ensure resource requirements in your supply chain. Impact – A very likely scenario is an accelerated adoption of certain customer channels, for instance online grocery. These channels might not be able to bear th...

13 days ago

Aanand AIMMSian

Knowledge Base Study 6

Supply Chain

2 57 0

18 days ago

Aanand AIMMSian

Knowledge Base Study 5

Study 5: Refine Capacity Smoothing This study can help you ensure resource requirements in your supply chain. Impact – As certain resources are forced to close, other resources will experience an increased load. Companies may not be able to adequately ramp up capacity and lose sales. Action –...

Supply Chain

2 54 0

18 days ago

Aanand AIMMSian

Knowledge Base Study 4

Study 4: Create Multiple Plans for Resource Utilization This study can help you ensure resource requirements in your supply chain. Impact – Manufacturing plants and warehouses will experience a sudden shift in resource utilization. There will most likely be a reduction in labor hours as fewer pe...

Supply Chain

2 46 0

18 days ago

Aanand AIMMSian

Knowledge Base Study 3

Study 3: Identify Optimal Sourcing Locations This study can help you anticipate shortages in your supply chain. Impact – As transportation lanes become unavailable, the availability of suppliers and components will decrease. Action – There is a strategic incentive in understanding the optima...

Supply Chain

2 69 0

18 days ago

Aanand AIMMSian

Knowledge Base Study 2

Study 2: Inspect Demand Trends This study can help you understand exposure in your supply chain. Impact – Since demand will significantly fluctuate and spike for a period of time before reverting to the mean, accurate demand signaling for the future becomes a challenge. Misreading these signals...

Supply Chain

2 84 0

18 days ago

Aanand AIMMSian

Knowledge Base Study 1

Study 1: Anticipate Best- and Worst-Case Operations Scenarios This study can help you understand exposure in your supply chain. Impact – Prolonged shutdowns will have both financial and operation implications, which are often very difficult to realize due to the complexity and far-reaching natu...

Supply Chain

2 218 0

18 days ago

Aanand AIMMSian

Knowledge Base Immediate Supply Chain Actions to Take Amid COVID-19

There are many impacts of COVID-19 that will be felt by Supply Chains in the coming weeks and months. As advised by McKinsey, in the next 2-4 weeks it is critical for companies to understand the exposure throughout their value chain, take actions to address anticipated shortages and ensure resources...

Supply Chain

6 786 0

18 days ago

chrdttchavan Explorer

Optimization Solvers

Solved

Dear All, Looking for a list of solvers (LP/MIP/NLP/quadratic), applications and limitations. Thanks.

Developers (Math, OR, programming)

0 36 2

2 months ago

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bkoirala Explorer

Integrated Electricity, Hydrogen and Gas Markets Modelling in AIMMS

Integrated Electricity, Hydrogen and Gas Markets Model (I-ELGAS) The future energy system will be increasingly integrated in order to absorb large fluctuations in intermittent renewables. Electricity, gas and hydrogen markets are interlinked via technologies such as water-electrolysis plants, natu...

Developers (Math, OR, programming)

3 103 1

2 months ago

Happy holidays! Every month, we send out an email digest with our latest supply chain content. If you're not signed up to receive it in your inbox, you have the chance to read the trending topics in our Online Community! Here is an overview of the content we shared in December. Find Out How Demand...

Gloria Quintanilla AIMMSian

News Supply Chain Digest - December 2019

Supply Chain

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We spoke with Russ Philbrick, founder of Polaris Optimization Systems, about optimization solutions for energy sector customers. Find out how the AIMMS-based engine PSO (Power System Optimizer) helps the power industry make the most of renewable energy. Can you tell me a little about your backgro...

3 months ago

Jess Es Community Manager

Interview Polaris Optimization Systems: Empowering Decision-making in the Energy Sector

Developers (Math, OR, programming)

4 305 0

3 months ago

The COMPETES electricity market model At PBL, the Netherlands Environmental Assessment Agency, AIMMS is used to model the European electricity market. We use this model for outlooks of future electricity market developments and to analyse policy impacts such as the impact of CO2 taxes on electrici...

Paul Koutstaal Newcomer

Electricity market modelling in AIMMS

Developers (Math, OR, programming)

8 207 1

4 months ago

Every month, we send out an email digest with our latest supply chain content. If you're not signed up to receive it in your inbox, you now have the chance to read the trending topics in our Online Community! Here is an overview of the content we published in November. Get a complimentary copy of...

Gloria Quintanilla AIMMSian

News Supply Chain Digest - November 2019

Supply Chain

1 39 0

4 months ago

Hi, I have an initial solution assigned to the two-dimensional variable x(i,j) . How can I start solving the mathprogram using this initial solution? I did the following steps but I need details about the element parameter which is the second argument in sendtosolversession?) Thanks in advance...

pira1338 Explorer

How to start solving with an initial solution

Solved

Developers (Math, OR, programming)

0 94 2

4 months ago

It’s hard to beat Santa’s supply chain. Who else offers present deliveries to millions of households around the world in a single night? Even our favorite retailers are not there yet! We like to think new methodologies and tools are helping them get a little bit closer, though. In this interview, Di...

Gloria Quintanilla AIMMSian

Interview How leading retailers prepare for the holiday season

Supply Chain

3 493 0

4 months ago

Hello,I couldnt formulize the precedence relation above in my constraints. Could anyone help me with that? I tried to use the Activities for the tasks but didnt know how to use them with constraintsThanks in advanceMelike

Melike Enthusiast

Precedence Tasks

Developers (Math, OR, programming)

0 96 5

5 months ago

Every month, we send out an email digest with our latest supply chain content. If you're not signed up to receive it in your inbox, you now have the chance to read the trending topics in our Online Community! Here is an overview of the content we published in October.How BT is Building a Connected...

Gloria Quintanilla AIMMSian

News Supply Chain Digest - October 2019

Supply Chain

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5 months ago

Hey, I have this Transportation-Distribution problem of paints and it says that in the 10th day the stock of paint of each color and each type has to be 1000L. I created a constraint: FinalStockConstraint Index domain: (d,c,t) 'd - day; c - color; t - type' Definition: sum[ds,DistributionSiteStoc...

pedronamoradorosa Explorer

Transportation-Distribution problem of paints - Constraint Set

Solved

Supply Chain

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