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Hourly - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
I'm looking for an experienced data scientist who has had some experience working on process optimisation (engineering related) problems. My data set is from a power plant desulphurisation process which has approx. 100,000 observations and 30 variables. Using this data set, I would like to model the number pumps used in the process with respect to the other variables. Then based on the derived model, you would need to find the optimal solution at which the number of pumps used is minimised subject to a few inequality constraints. This is an interesting problem and I'm confident that whoever takes on this challenge will find it rewarding! I would need the code written in R. Also, practical experience in Machine Learning and Nonlinear Programming would be required. If selected for an interview, further details about the project/expectation will be provided. I look forward to receiving your application.
Fixed-Price - Est. Budget: $ 700 Posted
I need a C# library which analyse a time serie and run a bunch of checks when values are added to the time serie. A time serie in this case is generic and can be a list of days, months, weeks etc. together with a numeric value (use double as type). First, I want a class which analyse the time serie with a moving average and regression analysis, preferable with a seasonal index. When a new value (or a collection of new values) is added to the serie, we shall do a bunch of condition checks. List of checks: - Trend (period length as parameter, output: procent) - Trend broken (true or false) - Extreme deviation/suddenly dropped by using MSE Min Square Error (MSE maximum value as parameter, output; true or false) - Has been stable for x points (x as parameter, output: true or false) - All-time high (true or false) - All-time low (true or false) - No data - new value is zero (true or false) You need to store values in a cache (such as current ”all-time high" value), to more...
Hourly - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Trying to source a worker for potential project this September-October, 2015, where you will need to use IMPLAN software to do an Economic Impact Analysis for a government contractor. If you have used IMPLAN in the past (www.implan.com), or if you have used similar software to do an Economic Impact Analysis and think you could learn Implan, then please be in touch to find out more. Price is negotiable, depending on what the contractor receives for the project and is able/willing to pass on, but this is NOT free work, it is a project for a skilled professional, and the fee would be negotiated in advance. I am guessing you might be semi-retired, or a graduate student, or in-between jobs and wanting to keep your skills sharp. I put "Intermediate" in the "desired experience level" as a very general guideline, since I actually don't know yet but I do know I need to find a skilled person who knows what he/she is doing. Same goes with hourly or project-based fee; IMPLAN requires that...
Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
I am looking for a expert with forecast & quantitative analysis We run a several ecommerce brands and want to create customize reports to show us how are marketing efforts are doing. Also focusing on our KPI's and organizing those so we can look at a monthly report and be more organized. Please show me previous work related to what I want. My forecast should take every KPI and allow it to be adjusted to see what things would look like if our customers bought frequently. or average price was or if average promotionis sent x times per month.