Ethan Mark Email & Phone Number

San Francisco, California, Us

Atlanta, Georgia, Us

• Used gradient boosting regression to predict which businesses would be most responsive to price drop decreases when taking out loans. The model is predicted to increase temporary price drop campaign revenue by 60% when selectively targeting businesses compared to random targeting.• Built an uplift model to predict which businesses would have the largest change in default probabilities during a natural disaster situation.

Atlanta, Georgia , Us

• Developed models comparing the risk of a patient accepting an organ from a high-risk donor, versus remaining on the waiting list. Methods include survival analysis, simulation, variable selection techniques such as permutation importance, cross validation and machine learning algorithms such as random forests. Also created font end decision support tools and visualizations of a patient’s options to make the decisions clear and simple• Created models predicting mortgage default rates for a dataset of 17 million loans. Methods included multivariate analysis and machine learning algorithms such as support vector machines• Priced financial options using Monte Carlo simulations and sampling algorithms

Atlanta, Georgia, Us

• Built a sentiment analysis model to identify if comments on social media pages are positive or negative. Methods involved data mining and cleaning, natural language processing techniques such. as term frequency–inverse document frequency (tf-idf), feature engineering and support vector machines• Used regression modelling to determine the impact of changes in social media metrics on key performance indicators of small businesses

San Jose, Ca, Us

• Developed a keyword bidding model; estimated to increase annual revenue by $3 Million• Recommended modifications to the algorithm, that ranks sponsored items after a keywordsearch on eBay. Methods included simulation and Bayesian statistics

• Created and taught a 40+ student class at UC Berkeley, covering logic problems and puzzle solving

Rochester, Ny, Us

• Research Experience for Undergraduates (REU) program at Rochester Institute of Technology in mathematics and computer science, advised by Stanislaw Radziszowski• Improved the bounds on the Bipartite Ramsey Number b(2,5). Presented research at the Young Mathematicians Conference 2013 and at the Joint Mathematics Meetings in 2014

Gb

Management Consulting in the Advisory Department.• Created a template to estimate the financial impact of PwC’s different possible project outcomes in their financial services sector in San Francisco• Estimated the impact of different personnel level allocations for financial sector projects• Managing partner used my template to find areas of improvement in PwC’s financial servicessector, such as going after certain types of projects and avoiding others

• Co-Founded the club, created guest speaker events and workshops to help provideentrepreneurial knowledge and resources to UC Berkeley students• Guest speakers included Jerry McLaughlin, named Entrepreneur of the Year in 2010 by leading industry magazine, Counselor• http://fses.berkeley.edu/

Competed in the 1500m - 8k events. Personal bests are: Mile - 4:163200m - 9:175k - 15:188k - 25:29

Bachelor Of Arts (B.A.), Double Major, Applied Mathematics, Economics

Doctor Of Philosophy (Ph.D.), Statistics

Science, History, Art