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q-fin.ST2019
Validating Weak-form Market Efficiency in United States Stock Markets with Trend Deterministic Price Data and Machine Learning
Samuel Showalter, Jeffrey Gropp
The Efficient Market Hypothesis has been a staple of economics research for decades. In particular, weak-form market efficiency -- the notion that past prices cannot predict future…
cs.LG2019★ 1 cited
Minimizing the Societal Cost of Credit Card Fraud with Limited and Imbalanced Data
Samuel Showalter, Zhixin Wu
Machine learning has automated much of financial fraud detection, notifying firms of, or even blocking, questionable transactions instantly. However, data imbalance starves traditi…