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WWW
2001
ACM
14 years 11 months ago
Kokono Search: A Location Based Search Engine
We have developed a location-based search system for web documents on the Internet. This system can find web documents based on the distance between locations that are described i...
Seiji Yokoji, Katsumi Takahashi, Nobuyuki Miura
POPL
2008
ACM
14 years 10 months ago
Extensible encoding of type hierarchies
The subtyping test consists of checking whether a type t is a descendant of a type r (Agrawal et al. 1989). We study how to perform such a test efficiently, assuming a dynamic hie...
Hamed Seiied Alavi, Seth Gilbert, Rachid Guerraoui
VLDB
2002
ACM
157views Database» more  VLDB 2002»
14 years 10 months ago
A formal perspective on the view selection problem
The view selection problem is to choose a set of views to materialize over a database schema, such that the cost of evaluating a set of workload queries is minimized and such that ...
Rada Chirkova, Alon Y. Halevy, Dan Suciu
SODA
2010
ACM
181views Algorithms» more  SODA 2010»
14 years 7 months ago
On the Cell Probe Complexity of Dynamic Membership
We study the dynamic membership problem, one of the most fundamental data structure problems, in the cell probe model with an arbitrary cell size. We consider a cell probe model e...
KE YI, QIN ZHANG
SAC
2010
ACM
14 years 5 months ago
Mining temporal relationships among categories
Temporal text mining deals with discovering temporal patterns in text over a period of time. A Theme Evolution Graph (TEG) is used to visualize when new themes are created and how...
Saket S. R. Mengle, Nazli Goharian