hw2 - BTRY 4090, Spring 2010, Homework 2 Due at 2:00pm on...

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BTRY 4090, Spring 2010, Homework 2 Due at 2:00pm on Tuesday, Feb. 9 in 1198 Comstock Hall. Please do not turn in your homework during staff lunch hour 12pm - 1pm. 1. Rice P. 108, Problem 6. 2. Rice P. 113, Problem 62. 3. Rice P. 114, Problem 66. 4. Rice P. 115, Problem 80. 5. Rice P. 168, Problem 30. 6. Rice P. 174, Problem 90. 7. Rice P. 174, Problem 92. 8. (30 points) Implement normal random projections and validate the estimators. Please download the data from http://www.stat.cornell.edu/ ~ li/4090/data/ . The data are vectors of length D = 2 16 , whose i th entry represents how many times this word appeared in the i th document. You will need to pick two vectors for your vectors u 1 and u 2 . You can pick one from the following three possible pairs (and no other combinations): (1) UNITED - STATES, (2) HONG - KONG, (3) A - THE Please write down which pair you pick. You can use matlab call “load” to read the vectors from disk. Generate a standard normal random matrix with size
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hw2 - BTRY 4090, Spring 2010, Homework 2 Due at 2:00pm on...

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