rec22 - x 1 x n on the Frst n dates Assume that Juliet is...

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Massachusetts Institute of Technology 6.041/6.431: Probabilistic Systems Analysis (Fall 2010) Recitation 22 November 30, 2010 Examples 8.2, 8.7, 8.12, and 8.15 in the textbook Romeo and Juliet start dating, but Juliet will be late on any date by a random amount X , uniformly distributed over the interval [0 , θ ]. The parameter θ is unknown and is modeled as the value of a random variable Θ, uniformly distributed between zero and one hour. (a) Assuming that Juliet was late by an amount x on their Frst date, how should Romeo use this information to update the distribution of Θ? (b) How should Romeo update the distribution of Θ if he observes that Juliet is late by
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Unformatted text preview: x 1 , . . . , x n on the Frst n dates? Assume that Juliet is late by a random amount X 1 , . . . , X n on the Frst n dates where, given θ , X 1 , . . . , X n are uniformly distributed between zero and θ and are conditionally independent. (c) ±ind the MAP estimate of Θ based on the observation X = x . (d) ±ind the LMS estimate of Θ based on the observation X = x . (e) Calculate the conditional mean squared error for the MAP and the LMS estimates. Compare your results. (f) Derive the linear LMS estimator of Θ based on X. (g) Calculate the conditional mean squared error for the linear LMS estimate. Compare your answer to the results of part (e). Page 1 of 1...
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This note was uploaded on 12/02/2011 for the course ENGINEERIN EE302 taught by Professor Proasin during the Spring '11 term at South Carolina.

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