Partitioning social networks for data locality on a memory budget

"Typical queries on online social network (OSN) applications are complex and require ""feeds"" to be compiled with timely information about many friends and friends' friends, which may be stored across many servers. Partitioning the OSN social graph in such a way as to promote data locality, i.e. such that a user's data will be stored on the same server as his friends' data, has proven difficult to do, and many existing OSN partitioning systems do not even attempt this. However, recent work has demonstrated techniques that do achieve data locality for social network queries by placing replicas of user data. We show that exploiting temporal characteristics of user behavior can enable effective partitioning for data locality without replication. We then build on this concept and demonstrate improved data locality by placing replicas sparingly. The result is a system which allows one to allocate a memory budget for replication and in return get a commensurate improvement in data locality."

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2012

Author dc:creator

• Stein, David

Contributors dc:contributor

• Lu, Yi

• Social networks
• Partitioning
• Locality

Statement dc:rights

• Copyright 2012 David Stein

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/31040

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/31040