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118
Voted
EDBT
2004
ACM
16 years 2 months ago
2004
ACM
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...
138
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EDBT
2006
ACM
16 years 2 months ago
2006
ACM
Traditional content based publish/subscribe (pub/sub) systems allow users to express stateless subscriptions evaluated on individual events. However, many applications such as moni...
116
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EDBT
2006
ACM
16 years 2 months ago
2006
ACM
In this paper, we propose a novel client-side, multi-granularity caching scheme, called "Complementary Space Caching" (CS caching), for location-based services in mobile ...
122
Voted
EDBT
2008
ACM
16 years 2 months ago
2008
ACM
We introduce a novel spatial join operator, the ring-constrained join (RCJ). Given two sets P and Q of spatial points, the result of RCJ consists of pairs p, q (where p P, q Q) ...
115
Voted
EDBT
2008
ACM
16 years 2 months ago
2008
ACM
Estimating the number of distinct elements in a large multiset has several applications, and hence has attracted active research in the past two decades. Several sampling and sket...