TY - GEN
T1 - Astronomical transient detection controlling the false discovery rate
AU - Clements, Nicolle
AU - Sarkar, Sanat K.
AU - Guo, Wenge
PY - 2013
Y1 - 2013
N2 - Identifying source objects in astronomical observations, in particular with reliable algorithms, is extremely important in large-area surveys. It is of great importance for any source detection algorithm to limit the number of false detections since follow up investigations are timely and costly. In this paper, we consider two new statistical procedures to control the false discovery rate (FDR) for group-dependent data-the two-stage BH method and adaptive two-stage BH method. Motivated by the belief that the spatial dependencies among the hypotheses occur more locally than globally, these procedures test hypotheses in groups that incorporate the local, unknown dependencies. If a group is found significant, further investigation is done to the individual hypotheses within that group. Importantly, these methodologies make no dependence assumption for hypotheses within each group. The properties of the two procedures are examined through simulation studies as well as astronomical source detection data.
AB - Identifying source objects in astronomical observations, in particular with reliable algorithms, is extremely important in large-area surveys. It is of great importance for any source detection algorithm to limit the number of false detections since follow up investigations are timely and costly. In this paper, we consider two new statistical procedures to control the false discovery rate (FDR) for group-dependent data-the two-stage BH method and adaptive two-stage BH method. Motivated by the belief that the spatial dependencies among the hypotheses occur more locally than globally, these procedures test hypotheses in groups that incorporate the local, unknown dependencies. If a group is found significant, further investigation is done to the individual hypotheses within that group. Importantly, these methodologies make no dependence assumption for hypotheses within each group. The properties of the two procedures are examined through simulation studies as well as astronomical source detection data.
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U2 - 10.1007/978-1-4614-3520-4-36
DO - 10.1007/978-1-4614-3520-4-36
M3 - Conference contribution
AN - SCOPUS:84894356141
SN - 9781461449508
T3 - Information Systems Development: Reflections, Challenges and New Directions
SP - 383
EP - 396
BT - Information Systems Development
T2 - 20th International Conference on Information Systems Development: Reflections, Challenges and New Directions, ISD 2011
Y2 - 24 August 2011 through 26 August 2011
ER -