Timothy Whittaker 816-***-****(mobile)

**** ******** **** acexhk@r.postjobfree.com

Pittsburgh, PA 15202

Work Experience

Dick's Sporting Goods, Coraopolis, PA

Senior CRM Insight Analyst Jan 2012 - Present

. Use statistical analysis and data mining techniques to understand and

detect trends in customer behavior to create insightful

recommendations to improve marketing initiatives.

. Used methods of generalized linear models and regularization

techniques to predict response propensities for direct mail

campaigns. This beat traditional methods key performance

indicators.

. Created programs in and outside of SAS for analysis not available in

SAS deployment in use at Dick's Sporting goods. Programs were

designed to work, and made as efficient as possible.

. SAS: Supervised binning algorithm based on Minimum Description

Length Principle, AdaBoost with decision stumps as weak learners,

Elastic Net Logistic Regression for help in feature selection and

modeling (based on R package), low rank matrix factorization of

large, sparse data sets with practical use in segmentation,

clustering and recommendations.

. Python: The following were created to handle wide, sparse, data

sets (5000 or more variables) that had to process on my desktop.

Algorithms include: kNN, Na ve Bayes Classifier, and Logistic

regression with L2 regularization.

. Prepare SQL for complicated query requests and reports. Queries range

from basic to fairly complicated - using temp tables, nested queries,

joins and partial joins as well as analytic functions to keep data

processing on workstation to a minimum.

. Gather and manipulate data via large customer transaction database to

create complete views of the customers.

. Serve as a team resource for data and analysis needs

. Create ad-hoc analyses / reports to address executives request, direct

mail strategies, and other questions as needed.

. Accomplishments include championing predictive models for direct mail

campaigns. Identification of current customer who are casual or

competitive runners. Introduction of customer replenishment models

based on transaction data and demographic information provided by 3rd

party data vendors.

University of Kansas, Lawrence KS

Graduate Teaching Assistant / Mathematics Instructor Aug 2009- Dec 2011

. Taught undergraduate courses in mathematics including Precalculus,

Calculus I for Engineers, Business Calculus I, Business Calculus II,

and Excursions in Mathematics.

. Nominated for Florence Black Award for Excellence in Teaching, Spring

2011.

. Received superb student evaluations on a regular basis.

General Electric (GE Money), Shawnee - Mission, KS

Forecasting Analyst Sept 2006 - Aug 2009

. Responsible for developing and delivering accurate forecasts for

contact center key performance metrics for all short, intermediate,

and long term planning strategies. Primary methodologies: ARIMA,

Vector Auto-regression and GARCH - balanced statistical forecast with

business expectations.

. Statistical forecasting required periodic recalibration -

identifying changes in trend and / or seasonal impact.

. Incorporated testing for optimal data transformation into forecasting

process to stabilize the variance and reduce skew of data

. Developed recursive testing procedure in SAS to identify parameter

inconsistency and break points in time series data.

. Maintained weekly forecast reporting across all clients this involved

maintaining SAS code which ran on a server and generated excel files

which were feed into master reporting excel files.

. Lead migration of forecasting processes from SAS workstations to SAS

Server.

. Lead the migration to SAS Server, wrote Windows scripts to automate

the run, notify manaer and myself of run completion (or error) via

email.

Service Management Group, Kansas City, MO

Research Analyst Oct 2004 - Sept 2006

. Provided expertise and support to project teams and senior management

on statistical and methodological issues related to satisfaction and

loyalty measurement. Typical analysis involved use of factor analysis

and regression techniques on survey data. Primary goal was to provide

client with an understanding of the key drivers for Overall

Satisfaction. Additional analysis around the Loyalty Profit Chain -

how Overall Satisfaction and Loyalty link to profitability. This

analysis was presented as Univariate regression.

. Prepared data in SPSS for analysis (data cleaning, recoding, assigning

variable labels and values, aggregation, restructuring)

. Conduct statistical analysis ranging from descriptive statistics to

principal components analysis and multinomial logistic regression.

. Interpreted and evaluated statistical output and generated

recommendations based on findings.

. Prepared results summaries and reports in Microsoft Excel and

PowerPoint.

. Presented findings to project teams and clients.

. Develop new analysis deliverables including CHAID analysis to segment

employees based on satisfaction survey as well as text mining to

correlate customer satisfaction to customer comments.

Technical Skills

. Statistical analysis and inference, predictive modeling, data mining.

. SAS Tools: BASE, STAT, ETS, SQL, MACROS, IML, Enterprise Guide, IML

Studio. Network Visualization Studio.

. Languages: SAS, IMLPlus, SQL, PL/SQL, NZSQL, Python, R

. Interests: Java, Octave, Matlab, Machine Learning and Statistical

Learning, MapReduce

. Miscellaneous: SPSS, SPSS Modeler, LaTeX document preparation system.

MS Office Suite

Certificates and Training

. Machine Learning - Stanford University via Coursera

. Introduction to Data Science - University of Washington via Coursera

. Computing for Data Analysis - Johns Hopkins University via Coursera

. Statistical Learning - Stanford University via OpenEdX

. SAS Programming and Advanced Programming (Training - non certificate)

Education

University of Kansas Lawrence, KS Master of Arts in Mathematics Aug

2009 - Dec 2011

Bowling Green State University Bowling Green, OH Master of Arts in

Economics Aug 2003 - Aug 2004

Clarion University of Pennsylvania Clarion, PA Bachelors of Science in

Business Administration Aug 1998 - May 2002

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