TY - GEN
T1 - What's new
T2 - IEEE INFOCOM 2004 - Conference on Computer Communications - Twenty-Third Annual Joint Conference of the IEEE Computer and Communications Societies
AU - Cormode, Graham
AU - Muthukrishnan, S.
PY - 2004
Y1 - 2004
N2 - Monitoring and analyzing network traffic usage patterns is vital for managing IP Networks. An important problem is to provide network managers with information about changes in traffic, informing them about "what's new". Specifically, we focus on the challenge of finding significantly large differences in traffic: over time, between interfaces and between routers. We introduce the idea of a deltoid: an item that has a large difference, whether the difference is absolute, relative or variational. We present novel algorithms for finding the most significant deltoids in high speed traffic data, and prove that they use small space, very small time per update, and are guaranteed to find significant deltoids with pre-specified accuracy. In experimental evaluation with real network traffic, our algorithms perform well and recover almost all deltoids. This is the first work to provide solutions capable of working over the data with one pass, at network traffic speeds.
AB - Monitoring and analyzing network traffic usage patterns is vital for managing IP Networks. An important problem is to provide network managers with information about changes in traffic, informing them about "what's new". Specifically, we focus on the challenge of finding significantly large differences in traffic: over time, between interfaces and between routers. We introduce the idea of a deltoid: an item that has a large difference, whether the difference is absolute, relative or variational. We present novel algorithms for finding the most significant deltoids in high speed traffic data, and prove that they use small space, very small time per update, and are guaranteed to find significant deltoids with pre-specified accuracy. In experimental evaluation with real network traffic, our algorithms perform well and recover almost all deltoids. This is the first work to provide solutions capable of working over the data with one pass, at network traffic speeds.
KW - Network measurements
KW - Traffic data analysis
UR - http://www.scopus.com/inward/record.url?scp=8344272783&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=8344272783&partnerID=8YFLogxK
U2 - 10.1109/INFCOM.2004.1354567
DO - 10.1109/INFCOM.2004.1354567
M3 - Conference contribution
AN - SCOPUS:8344272783
SN - 0780383559
T3 - Proceedings - IEEE INFOCOM
SP - 1534
EP - 1545
BT - IEEE INFOCOM 2004 - Conference on Computer Communications - Twenty-Third Annual Joint Conference of the IEEE Computer and Communications Societies
Y2 - 7 March 2004 through 11 March 2004
ER -