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Gregory Piatetsky-Shapiro
Gregory I. Piatetsky-Shapiro (born 7 April 1958) is a data scientist, co-founder of KDD conferences and ACM SIGKDD association for Knowledge Discovery and Data Mining,〔 and President of (KDnuggets ), a leading site on Business Analytics, Data Mining, and Data Science. For simplicity, he usually abbreviates his name as Gregory Piatetsky.
==Early life==
Piatetsky was born to a Jewish-Russian family in Moscow, Russia. His father, Ilya Piatetski-Shapiro, was a well-known mathematician. He skipped 6th grade because of anti-semitic attacks and was admitted in 1970 to the Physics-Mathematics School N. 2 in Moscow.
In March 1974 Piatetsky emigrated to Israel with his mother, Inna. There, he studied mathematics at Tel-Aviv University, where at age 16 he was the youngest student. He also studied computer science for one semester at Technion, where he wrote a program in APL to play the game of Battleship. He was overwhelmingly defeated in the first game by his own program. That increased his interest in the nascent field of Machine Learning.
In 1977 Piatetsky received a full scholarship for graduate studies at NYU Courant Institute, where he received a MS (1979) and Ph.D. (1984). His first paper, published in SIGMOD in 1984, proved that secondary index selection is NP-complete by reducing it to set cover problem. However, in his dissertation he proved that the greedy method for set cover has a lower bound of 1 - 1/e ~ 63% of the optimal.
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