"Another thing you can try is partitioning your data--for instance if one of those independent variables has a large influence in the prediction, the value of that one independent variable may affect how other variables influence the predicted value.…"
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Jonathan Davis
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Jonathan Davis commented on Chris Carozza's blog post What do you do with a multiple variable model that has a low correlation coefficient (R2)?
Jonathan Davis replied to Yi-Chun Tsai's discussion Which optimization solver to choose? in the group Operations Research
"I've used both to solve large problems, and between the two, i would get price estimates for how you would need to configure your licenses (i know Xpress starts cheap but as you add features it get pretty comparable to CPLEX last i…"
Jonathan Davis replied to AYELEHIN OLORUNFEMI ZACCHEAUS's discussion OR Application in Marketing Communication in the group Operations Research
"the March-April 2009 issue of 'Interfaces' contained an article ("A Plackett-Burmann Experiment to increase supermarket sales of a national magazine") describing how researchers used an experimental design and subsequent analysis…"
Phil B Brubaker left a comment for Jonathan Davis
"> This seems to fall right in line with the type of problems you're interested. I'm also looking at designing casualty evacuation vehicles from a systems point of view (speed, range, capacity etc).
Sounds interesting and a challenge!…"
Jonathan Davis posted a discussion
To DOE or not to DOE
I'm conducting a simulation analysis of how different system characteristics of a casualty evacuation aircraft (speed, capacity, range, number of aircraft) affect system performance (delays, timing through different levels of care etc). The purpose of the study is not to determine the optimal or near optimal set of characteristics, but to determine the marginal benefit or penalty of each aircraft system characteristic to the patient compared to the current system, so that if and when the system…See More
Jonathan Davis updated their profile
Profile Information
- Short Bio:
- Operations Research Analyst at Teledyne Brown Engineering
- My Website or LinkedIn Profile (URL):
- http://www.tmlsim.com
- Field of Expertise:
- Operations Research
- Years of Experience in Analytical Role:
- 2
- Professional Status:
- Technical
- Interests:
- Networking
- Your Company:
- Teledyne Brown Engineering
- Industry:
- Aerospace & Defense
- How did you find out about AnalyticBridge?
- randomly (from my point of view) invited by Vincent Granville
Comment Wall (2 comments)
- At 7:09pm on September 22, 2010,
Chris Carozza said… - I like the comment that you made, in some systems multiple models are required. This is true, however, a good way of tracking a model is to plot the model with the dependant variable as a function of time and note any differences. In certain cases it may be possible to isolate another independant variable.
- At 6:24pm on March 10, 2009,
Phil B Brubaker said… - > This seems to fall right in line with the type of problems you're interested. I'm also looking at designing casualty evacuation vehicles from a systems point of view (speed, range, capacity etc).
Sounds interesting and a challenge! Do you have math models for all this with parameters that could be improved upon? If you have a math model or two, I might be able to run a simulation for you.
Let me know if I can help.
Thanks,
Phil
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