@article{permanpitmanyor92, abstract = {ome general formulae are obtained for size-biased sampling from a Poisson point process in an abstract space where the size of a point is defined by an arbitrary strictly positive function. These formulae explain why in certain cases (gamma and stable) the size-biased permutation of the normalized jumps of a subordinator can be represented by a stickbreaking (residual allocation) scheme defined by independent beta random variables. An application is made to length biased sampling of excursions of a Markov process away from a recurrent point of its statespace, with emphasis on the Brownian and Bessel cases when the associated inverse local time is a stable subordinator. Results in this case are linked to generalizations of the arcsine law for the fraction of time spent positive by Brownian motion.}, added-at = {2010-01-15T19:31:30.000+0100}, author = {Perman, M. and Pitman, J. and Yor, M.}, biburl = {http://www.bibsonomy.org/bibtex/2c36b8cb697027e4d7261bae24c95a168/peter.ralph}, interhash = {995d0b64de56aeabd2e0fa51cf4c508c}, intrahash = {c36b8cb697027e4d7261bae24c95a168}, journal = {Probability Theory and Related Fields}, keywords = {Poisson_process excursions size_biased_parititions}, number = 1, pages = {21--39}, publisher = {Springer}, timestamp = {2010-01-15T19:31:30.000+0100}, title = {{Size-biased sampling of Poisson point processes and excursions}}, url = {http://www.springerlink.com/content/n08754882308h67n/}, volume = 92, year = 1992 }