World Statistics Day

October 20, 2010 has been declared World Statistics Day by the United Nations. See here for more information. Visit the display about statistics that the Statistics Club has organized for 10/20/2010 from noon-3 pm at Tate Center Plaza.

Mon, 10/11/2010
Alumni News: 

Constrained Multi-objective Designs for Functional MRI Experiments via A Modified NSGA-II

Functional magnetic resonance imaging (fMRI) is an advanced technology for studying brain functions. Due to the complexity and high cost of fMRI experiments, high quality multi-objective (MO) fMRI designs are in great demand; they help to render precise statistical inference, and are keys to the success of fMRI experiments. Here, we propose an efficient approach for obtaining MO fMRI designs. In contrast to existing methods, the proposed approach does not require users to specify weights for the different objectives, and can easily handle constraints to fulfill customized requirements.

TR Number: 
2010-07
Ming-Hung Kao, Abhyuday Mandal, and John Stufken
Key Words: 
Genetic algorithms, Hemodynamic response function, Multi-objective optimization, Design efficiency

To request a copy of this report send an email to Richard Worthington and a pdf copy will be sent to you if available.

Assessment of Learning, For Learning, and As Learning in Statistics Education

J. Garfield and Franklin, C., Assessment of Learning, For Learning, and As Learning in Statistics Education, in Teaching Statistics in School Mathematics - Challenges for Teaching and Teacher Education: A Joint ICMI/IASE Study, vol. 14, Springer Publishers, 2011, pp. 133-145.

Monotone Convex Sequences and Cholesky Decomposition of Symmetric Toeplitz Matrices

This paper studies off-diagonal decay in symmetric Toeplitz matrices. It is shown that if the generating sequence of the matrix is monotone, positive and convex then the monitonicity and positivity are maintained through triangular decomposition. The work is motivated by recent results on explicit bounds for inverses of triangular matrices.

TR Number: 
2004-02
Kenneth S. Berenhaut and Dipankar Bandyopadhyay

To request a copy of this report send an email to Richard Worthington and a pdf copy will be sent to you if available.

Pages

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