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Category Archives: research

matrix multiplication in mySQL

Background For a while now, there has been a need in a project of mine to perform a large-scale matrix multiplication. Here, large-scale involves the multiplication of a 2000x2000 square matrix with another matrix containing labels.  A simpler example is projecting a matrix containing a set of class features into a 2-d Cartesian space for […]

Weather Aware Sampling and Comparison of Climate Data: An Alternative Way to Better Climate Prediction

Weather Aware Sampling and Comparison of Climate Data: An Alternative Way to Better Climate Prediction speakers: Mike Bauer (NASA GISS, NASA Postdoctoral Fellow), george tselioudis, bill rows, climate research host: Claire Monteleoni, CCLS, CCLS Conference Room, Suite 850, 475 Riverside Dr. abstract: Climate researchers such as myself often face a flurry of questions from friends, […]

Eliminating the Need for a 4th NYC Area Airport with Collaborative Communications Technology

Eliminating the Need for a 4th NYC Area Airport with Collaborative Communications Technology Speaker: Ted Willke Abstract – Presently, aircraft separation and runway usage are controlled manually, primarily through voice communications between Air Traffic Control and pilots. With existing procedures, the air system is suffering from limited runway capacity and airports, such as John F. […]

sharing seminars and notes

Recently, the number of technical posts has been a little low, but I have continued to attend the many interesting talks and seminars available at Columbia. Sharing educational materials for others who are curious or are genuinely unable to access these talks in person (i.e. international scholars) seems to be a growing trend demonstrated by […]