I first met Sam as an undergraduate at Caltech where he was TA for Hopfield’s class, and again when I visited Gatsby, when he invited me to visit Toronto, and at too many conferences to recount. His personality was a combination of enthusiastic and thoughtful, with a great ability to phrase a problem so it’s solution must be understood. With respect to my own work, Sam was the one who advised me to make my first tutorial, leading to others, and to other things, all of which I’m grateful to him for. In fact, my every interaction with Sam was positive, and that was his way.
My last interaction with Sam, last week, was discussing a new research direction that interested him, optimizing the cost of acquiring feature information in the learning algorithm. This problem is endemic to real-world applications, and has been studied to some extent elsewhere, but I expect that in our unwritten future history, we’ll discover that further study of this problem is more helpful than almost anyone realizes. The reply that I owed him feels heavy, and an incompleteness is hanging. For his wife and children it is surely so incomparably greater that I lack words.
Sam Roweis died unexpectedly on January 12, 2010.
He was a truly wonderful person; a beloved son, husband and father; and a treasured friend and colleague.
This is a place for all of us who were lucky enough to know Sam to share our memories and to help celebrate his life.
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