In my bachalar work I am supossed to build an model of terrorist attack in Tokyo in 1995 (sarin gas). I have never done heard anything about ABM until about a month ago. Now I am even able to do some simple models.
However I would welcome some ideas about how to even start with the model. I only need to model one train of 5 from the attack. Should I start with the environment, defining agents...? And is there anybody who could provide me kind of a support if I need to know something?
Also should I model everything with statecharts, or is It possible to model the train with Trail library using flowcharts and passengers with statecharts?
best idea is to check out the example models that come with AnyLogic (Menu/Help/Example Models).
Get a feeling for a good number and start pulling together techniques and items that were used to achieve similar things.
Otherwise, your questions are far too broad for StackOverFlow, I am afraid.
Best modelling advise in a nutshell: Start (super)simple and add features as you go along (and your skills increase)
Related
I need to simulate a fully functional AS/RS in warehousing. Moreover, I am a complete beginner in this field. Can some please let me know if I could get readymade simulation file? Or if not, please let me know how to learn to do it.
I have checked out the Anylogic website and it's tutorials (They are too lengthy).
fortunately for you, i have developed an AS/RS example that is a ready-made downloadable model for you, available at https://cloud.anylogic.com/model/1f5c7d1f-8782-40ac-957d-d3ba97bf6bf0?mode=SETTINGS
In general, when you want a model example, the first thing you should do is check the anylogic cloud, and if you are lucky the model is downloadable. Unfortunately, most people don't share
It really depends on what type of ASRS you are modeling (shuttle versus unit load) and level of detail you need. Do you need specific slotting and inventory tracking, or simplier black box delays with the assumption inventory is always available? The level of detail you need depends on questions you are asking, and should be addressed prior to starting development. If results from the model are critical and urgent, and you need anything more than simple black box delays, you should consider outsourcing to an experienced professional until you can get your AnyLogic skills up to speed.
I am a beginner to this Anylogic software. I have tried some ways to make my model work for milkrun in last mile delivery. I used statecharts and modeling library in constructing the logic, but have not successfully cracked the logic. I have looked into anylogic cloud, it helped in learning bits and pieces. But could not find a model in this case. Any ideas or example models would be much helpful to realize my model.
Thank you:)
There are lots of supply chain-type models in the examples that ship with the tool. You can also check out YouTube for in-depth tutorials, here is one that could be relevant to your case.
I am a final year student of Computer System Engineering.My FYP is Agent Based Modeling for Supply Chain Management. I don't know how to start it or which software should I use. Repast? Netlogo? Anylogic?
Please guide me how to proceed with my project.
Even though this question is opinion-based, I was part of a project whose objective was to compare exactly the softwares you mentioned here: Repast, Netlogo and AnyLogic. What I did in this study was to create AnyLogic models. Someone else was creating the models in Netlogo and Repast.
There is no paper with the conclusions yet, but the person who did this study told me that AnyLogic was better in terms of easy to use and scalability than the others and Repast has the steepest learning curve. Nevertheless for small scale projects, AnyLogic and Netlogo are equally suited so it doesn't matter which one you choose.
Nevertheless, remember that AnyLogic on its free version allows you to use only 10 agents, which is a lot, but if your project is really big and you want everything for free, you may encounter a problem there.
As a platform that allows to work with agents that include in the same platform: editing code, show the area of simulation and generate graphics. I think Netlogo platform is suitable for this reason. you can also link it with other programming languages like python and R.
I asked a similar question to Anylogic linkedin forum so sorry for multiple posting (possibly for some of you). I just heard about the Anylogic program. My purpose is not simulation I want to visualize a log file. I want to allow the admin-user (who will be the user of the Anylogic model) to enter some settings which will cause some filtering and I want to visualize the whole file with Anylogic.
The file is a communication file. Possibly I will show communication attendees and interactions using Anylogic. I want to emphasize unnormal patterns in the log using visual and interactive properties of Anylogic. There may also some need for like zooming in and out during the execution of the model.
Is it something very difficult to do? I am a Java developer. I can understand that I should have to learn Anylogic. What other skills and development and test environments (Ide etc.) do I need?
I plan to do a serial of implementations for several log file types and currently I am trying to find the best tool which will allow me to make changes in visualization part of the models easily till I find the best representation of the data.
There are some examples of Anylogic which are installed built-in but I couldn't see an example which suits my situation. I do not know where to start. If someone helps me to start the design I would be very happy :)
Thank you for your attention..
Edit:
I am attaching a sample stereoscopic view model and a sample view. I want to do something similar to this. Is it ok with AnyLogic?
Ferda
simple answer: yes its possible.
Some more comments:
I am currently working on a very similar project actually. For me as an experienced AnyLogic user, it is very natural and AnyLogic offers all the features you ask for.
Is it something very difficult to do?
That depends on how quickly you can learn AL. But if you are experienced with Java, it will not be too hard, I imagine.
What other skills and development and test environments (Ide etc.) do I need?
None, really. You need to figure out how to use the visual elements of AL. All of them can be changed statically via the AL IDE but you can always change them dynamically via Java code. That is very important to realize and play around with.
I am attaching a sample stereoscopic view model and a sample view. I want to do something similar to this. Is it ok with AnyLogic?
Yes, that can be done.
I suggest you try checking the example models that come with AL. If you find something that looks like what you need, try to figure out how they did it. Then try to recreate it in a simple example model for yourself.
There are some Topics on Stackoverflow already related on how to model different Threads in UML, for example: Is there an inituitive UML approach to depict threads.
However I still feel, that my case has not been already discussed, even though it should be pretty common:
I am creating an iPhone Application, where I am obviously have a Main-UI-Thread and I am also using Background-Threads to perform Remote-Calls, etc. I basically have 4 different aspects that I like to display within my diagramm:
The UI that is shown to the User.
The Tasks that are being performed by the Main-UI-Thread (therefore blocking the UI)
The Tasks that are performed by Background-Threads
Updates of the UI, which are performed by the UI-Thread, but can be triggered by Background-Threads. For example: new Information loaded from Server, which needs to be displayed on the UI
Has anybody ran into a similiar issue and therefore might show me an example or give me some best practises on how to solve my problem? I am not even sure if I should use a sequence-diagram, an activity-diagram or maybe even some other type.
Well Pascal,
This is not an UML question. It is a design question.
UML just helps you
To understand hard and crtical section of your program/design and to
explore alternative solutions , while writing your code. with the power of visual modeling.
So..
First, ask yourself what kind of parallelism or concurrency exist in
your problem? To investigate this:
Draw a simple activity diagram with partions in which each partions
used to represent different operating system threads or processes.The
object nodes can be used to model the shared objects and data.Forking can be used to model the creation and parallel execution of multiple threads or processes.
Then ask yourself(using that diagram)
What are my shared data? What are my active classes? (threads)What kind of "concurency" problems" may
accour? What may go wrong? What are synronization points? etc..Based on this Explore different alternatives, designs.
The last thing you should worry is UML and its sytax(symbols).
The best UML diagrams are the one that wake up the desire of "asking question" in your mind.
At first forget about Uml. Ask core questions about your problem. If you like visual modeling and your mind like visual thinking use Uml for better understand and investigate possible design solutions.
UML can not design for you...
I found this research papers while searching for same thing
M-UML: an extension to UML for the modeling of mobile
agent-based software systems
May be it can help you