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STOC
2007
ACM
98views Algorithms» more  STOC 2007»
16 years 5 months ago
Negative weights make adversaries stronger
The quantum adversary method is one of the most successful techniques for proving lower bounds on quantum query complexity. It gives optimal lower bounds for many problems, has ap...
Peter Høyer, Troy Lee, Robert Spalek
IJCAI
1997
15 years 6 months ago
Recursive Plans for Information Gathering
Generating query-answering plans for information gathering agents requires to translate a user query, formulated in terms of a set of virtual relations, to a query that uses relat...
Oliver M. Duschka, Alon Y. Levy
IPM
2000
108views more  IPM 2000»
15 years 4 months ago
A system for supporting cross-lingual information retrieval
In this paper, we present the system MULINEX, a fully implemented system which supports cross-lingual search of the WWW. Users can formulate, expand and disambiguate queries, filt...
Joanne Capstick, Abdel Kader Diagne, Gregor Erbach...
159
Voted
PVLDB
2010
152views more  PVLDB 2010»
15 years 3 months ago
k-Nearest Neighbors in Uncertain Graphs
Complex networks, such as biological, social, and communication networks, often entail uncertainty, and thus, can be modeled as probabilistic graphs. Similar to the problem of sim...
Michalis Potamias, Francesco Bonchi, Aristides Gio...
138
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SIGMOD
2004
ACM
120views Database» more  SIGMOD 2004»
16 years 5 months ago
Prediction and Indexing of Moving Objects with Unknown Motion Patterns
Existing methods for prediction in spatio-temporal databases assume that objects move according to linear functions. This severely limits their applicability, since in practice mo...
Yufei Tao, Christos Faloutsos, Dimitris Papadias, ...