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SUMMARY:Design of Networked Experiments - Parker\, B (QMUL)
DTSTART:20110901T103000Z
DTEND:20110901T110000Z
UID:TALK32610@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:We consider experiments on a number of subjects\, and examine 
 how the links between subjects in an experiment\, affect the optimal desig
 n. For example\, in a marketing experiment\, it is reasonable to believe t
 hat a product may be preferred more by a subject whose 'friend' also prefe
 rs that product\, and we may wish to use this 'friendship' information to 
 improve our design. \n\nWe present optimal designs to measure both the dir
 ect effect and the network effect. We discuss how the structure of the net
 work has a large influence on the optimal design\, but show that even if w
 e know many properties of the network\, as represented by the eigenvalues 
 of a graph\, we cannot determine an absolute design. \n\nWe present exampl
 es based on marketing experiments\, and show how the results can be applie
 d to experiments in social sciences and elsewhere.\n\n\n
LOCATION:Seminar Room 1\, Newton Institute
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