TY - GEN
T1 - Confluent persistence revisited
AU - Collette, Sébastien
AU - Iacono, John
AU - Langerman, Stefan
PY - 2012
Y1 - 2012
N2 - It is shown how to enhance any data structure in the pointer model to make it confluently persistent, with efficient query and update times and limited space overhead. Updates are performed in O(log n) amortized time, and following a pointer takes O(log c log n) time where c is the in-degree of a node in the data structure. In particular, this proves that confluent persistence can be achieved at a logarithmic cost in the bounded in-degree model used widely in previous work. This is a O(n/ log n)-factor improvement over the previous known transform to make a data structure confluently persistent.
AB - It is shown how to enhance any data structure in the pointer model to make it confluently persistent, with efficient query and update times and limited space overhead. Updates are performed in O(log n) amortized time, and following a pointer takes O(log c log n) time where c is the in-degree of a node in the data structure. In particular, this proves that confluent persistence can be achieved at a logarithmic cost in the bounded in-degree model used widely in previous work. This is a O(n/ log n)-factor improvement over the previous known transform to make a data structure confluently persistent.
UR - http://www.scopus.com/inward/record.url?scp=84860138987&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860138987&partnerID=8YFLogxK
U2 - 10.1137/1.9781611973099.50
DO - 10.1137/1.9781611973099.50
M3 - Conference contribution
AN - SCOPUS:84860138987
SN - 9781611972108
T3 - Proceedings of the Annual ACM-SIAM Symposium on Discrete Algorithms
SP - 593
EP - 601
BT - Proceedings of the 23rd Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2012
PB - Association for Computing Machinery
T2 - 23rd Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2012
Y2 - 17 January 2012 through 19 January 2012
ER -