Statistics Jobs

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Hourly - Intermediate ($$) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
The goal of the job is to create a model to predict what is the offer a customers is most likely to respond to. The business context is a loyalty program where marketing campaigns are directed to stimulate users to exchange points for goods. There are roughly 500 product categories and they range from flying tickets to pre-paid credit for phone. Based on data sources listed below your model will have to generate a list of top N offer categories per customer. Those should be the offers the customer is most likely to respond in descending order. Data sources are: a) Customer Information File (demographic data plus points balance) b) Transactional data (all historical exchanges of points for goods) c) Product catalog -- This is an evaluation job for a long-time position. Model will be ported to Spark application. Therefore, skills in Apache Spark and large scale machine learning are a bonus.
Skills: Statistics Apache Spark Data Modeling Hadoop
Fixed-Price - Entry Level ($) - Est. Budget: $5 - Posted
I'm looking for a way to visually detect changes in one of n series of numbers. I guess there's a function in Excel but I can't find it. Here's the explanation with an example: I have three very different series of numbers. Let s say I want to see if there's a relationship between different series of numbers, visually. I have groups of people coming to a shop to buy coffee. And I want to see if there s a relationship between: a) Number of women that entered the shop that day. b) Average age. c) Number of coffee cups sold that day. So I d have, in Excel, three columns and they would look something like this: Number of women | Average Age | Coffee cups 20 | 35 | 25 12 | 32 | 8 25 | 28 | 29 etc. What I m trying to do is to have a very visual way of seeing if there s a change between those numbers this way: 1. A mean between the three variables (20+35+25)/3 for the first day, and so on. 2. Some kind of lines that move around it like the chains of DNA (or always above or below, or whatever, the only thing that matters is that I can visually see if some of the variables are above or below that number that is the central line. This way I know that one of the variables is "off" and I can take a closer look. What I want is the lines to be "as near as possible" to the "mean". I know I could just draw them overlaying the chart, but if there are numbers that are very different between others (for example if the columns were not those but distances in inches and miles), overlaying the charts would not be an option. In the example of inches and miles, if they were 1 inch and 1 mile, what I'd like is the chart to show a difference in the same amount above or below the line. For example, if the values are 3 inches and 10000 km, I'd like to see the line of km just above the central line, not very far so it can be clear but the chart would look elegant, not with spikes or big distances between the lines. Kind of a “weighted” line. I know it’s not a weighted average. But I hope you get the idea of what I mean by “weighted”. If there's not a specific formula that you know about please tell me how can this be solved and if it would be a higher price. It's very probable that when I find the correct way of calculating it I'd need additional jobs in the same area. I included a graph made by hand and obviously wrong in terms of information but with the "visuals" I'm looking for. Where the red line is the average (or the term that applies) and the other three lines are the series of numbers in time.
Skills: Statistical Computing Mathematics Statistics Teaching Mathematics
Fixed-Price - Expert ($$$) - Est. Budget: $500 - Posted
I would like someone to guide and teach me SAS from the beginning. I need someone who will watch me and instruct me on how to use sas (base) and ensure I get competant in it as well excel in it. We can use teamviewer where my screen can be seen, vice versa. I am interested in the career as a 'Credit Risk Analyst' and would like to start asap. However, I do have a problem, I do not have SAS software only have sas university edition to practice on and would really like to learn it. As it is a requirement for jobs I would like to apply for. Currently I can only learn all this at the weekends. I a may be able to do some evenings during the week but it would be in the evenings GMT. I would really like to learn SAS and become an expert in it. I would like to learn to develop credit risk models in the context of the recent Basel II and Basel III guidelines. Providing me with a sound mix of both theoretical and technical insights, as well as practical implementation details. As well as doing These are several real-life case studies and exercises. Learn how to develop probability of default (PD), loss given default (LGD), and exposure at default (EAD) models validate, backtest, and benchmark credit risk models stress test credit risk models develop credit risk models for low default portfolios use new and advanced techniques for improved credit risk modeling ETC Thank you
Skills: Statistics Data Analytics SAS
Fixed-Price - Intermediate ($$) - Est. Budget: $500 - Posted
Our firm is looking for a talented individual who can help us build out a variety of tools in Excel that will allow us to create customized portfolio solutions using Efficient Frontier and Mean Variance Optimization analysis. The scope of work will also include charts, reports, etc. that can be presented to the customer. For an example please visit: I look forward to discussing in more details via skype. Please provide any examples of work that you have done that is similar. Thanks. Matt
Skills: Statistics Excel VBA Portfolio Performance Modeling