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SIGCOMM
2012
ACM
11 years 10 months ago
Measuring and fingerprinting click-spam in ad networks
Advertising plays a vital role in supporting free websites and smartphone apps. Click-spam, i.e., fraudulent or invalid clicks on online ads where the user has no actual interest ...
Vacha Dave, Saikat Guha, Yin Zhang
GIS
2004
ACM
14 years 8 months ago
A serverless 3D world
Online multi-participant virtual-world systems have attracted significant interest from the Internet community but are hindered by their inability to efficiently support interacti...
Egemen Tanin, Aaron Harwood, Hanan Samet, Sarana N...
NGITS
1997
Springer
13 years 11 months ago
Faster Joins, Self Joins and Multi-Way Joins Using Join Indices
We propose a new algorithm, called Stripe-join, for performing a join given a join index. Stripe-join is inspired by an algorithm called \Jive-join" developed by Li and Ross....
Hui Lei, Kenneth A. Ross
MST
2002
128views more  MST 2002»
13 years 7 months ago
A Simple and Efficient Parallel Disk Mergesort
External sorting--the process of sorting a file that is too large to fit into the computer's internal memory and must be stored externally on disks--is a fundamental subroutin...
Rakesh D. Barve, Jeffrey Scott Vitter
SAC
2009
ACM
14 years 2 months ago
Using geo-spatial session tagging for smart multicast session discovery
IP multicast is increasingly seen as efficient mode of live content distribution in the Internet to significantly large subscriber bases. Despite its numerous benefits over IP u...
Piyush Harsh, Richard Newman