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dc.contributor.authorBaeza-Yates, R
dc.contributor.authorGabarró Vallès, Joaquim
dc.contributor.authorMesseguer Peypoch, Xavier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciències de la Computació
dc.date.accessioned2016-12-14T13:10:05Z
dc.date.available2016-12-14T13:10:05Z
dc.date.issued1998-06
dc.identifier.citationBaeza-Yates, R., Gabarro, J., Messeguer, X. "Fringe analysis of synchronized parallel algorithms on 2--3 trees". 1998.
dc.identifier.urihttp://hdl.handle.net/2117/98212
dc.description.abstractWe are interested in the fringe analysis of synchronized parallel insertion algorithms on 2—3 trees namely the algorithm of W.Paul U. Vishkin and H. Wagener PVW. This algorithm inserts k keys into a tree of size n with parallel time Olog n log k Fringe analysis studies the distribution of the bottom subtrees and it is still an open problem for parallel algorithms on search trees. To tackle this problem we introduce a new kind of algorithms whose two extreme cases seems to upper and lower bounds the performance of the PVW algorithm. We extend the fringe analysis to parallel algorithms and we get a rich mathematical structure giving new interpretations even in the sequential case. The process of insertions is modeled by a Markov chain and the coecients of the transition matrix are related with the expected local behavior of our algorithm. Finally we show that this matrix has a power expansion over (n+1)-1 where the coecients are the binomial transform of the expected local behavior. This expansion shows that the parallel case can be approximated by iterating the sequential case.
dc.format.extent14 p.
dc.language.isoeng
dc.relation.ispartofseriesLSI-98-37-R
dc.subjectÀrees temàtiques de la UPC::Informàtica::Informàtica teòrica
dc.subject.otherFringe analysis
dc.subject.otherSynchronized parallel insertion algorithms
dc.subject.otherBinomial transform
dc.subject.other2-3 trees
dc.titleFringe analysis of synchronized parallel algorithms on 2--3 trees
dc.typeExternal research report
dc.contributor.groupUniversitat Politècnica de Catalunya. ALBCOM - Algorismia, Bioinformàtica, Complexitat i Mètodes Formals
dc.rights.accessOpen Access
local.identifier.drac1874254
dc.description.versionPostprint (published version)
local.citation.authorBaeza-Yates, R.; Gabarro, J.; Messeguer, X.


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