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123
Voted
COMPGEOM
2009
ACM
15 years 9 months ago
2009
ACM
We consider a number of range reporting problems in two and three dimensions and prove lower bounds on the amount of space used by any cache-oblivious data structure for these pro...
120
Voted
AI
2010
Springer
15 years 2 months ago
2010
Springer
We consider the problem of finding an unknown graph by using two types of queries with an additive property. Given a graph, an additive query asks the number of edges in a set of ...
129
Voted
KDD
2006
ACM
16 years 3 months ago
2006
ACM
We investigate three methods for defining a session on Web search engines. We examine 2,465,145 interactions from 534,507 Web searchers. We compare defining sessions using: 1) Int...
127
Voted
WWW
2009
ACM
16 years 3 months ago
2009
ACM
Both search engine click-through log and social annotation have been utilized as user feedback for search result re-ranking. However, to our best knowledge, no previous study has ...
180
Voted
SIGIR
2011
ACM
14 years 5 months ago
2011
ACM
As the Internet grows explosively, search engines play a more and more important role for users in effectively accessing online information. Recently, it has been recognized that ...