309 search results - page 61 / 62 » Expertise networks in online communities: structure and algo... |
PVLDB
2008
13 years 4 months ago
2008
The class of k Nearest Neighbor (kNN) queries is frequently used in geospatial applications. Many studies focus on processing kNN in Euclidean and road network spaces. Meanwhile, ...
WWW
2008
ACM
14 years 6 months ago
2008
ACM
High-quality, personalized recommendations are a key feature in many online systems. Since these systems often have explicit knowledge of social network structures, the recommenda...
KDD
2008
ACM
14 years 5 months ago
2008
ACM
Low-rank approximations of the adjacency matrix of a graph are essential in finding patterns (such as communities) and detecting anomalies. Additionally, it is desirable to track ...
ICDE
2009
IEEE
14 years 7 months ago
2009
IEEE
Modern database systems increasingly make use of networked storage. This storage can be in the form of SAN's or in the form of shared-nothing nodes in a cluster. One type of a...
ICDE
2008
IEEE
14 years 6 months ago
2008
IEEE
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentati...