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STOC
2001
ACM
139views Algorithms» more  STOC 2001»
16 years 2 months ago
Approximate distance oracles
Let G = (V, E) be an undirected weighted graph with |V | = n and |E| = m. Let k 1 be an integer. We show that G = (V, E) can be preprocessed in O(kmn1/k ) expected time, construc...
Mikkel Thorup, Uri Zwick
120
Voted
CLEF
2007
Springer
15 years 8 months ago
Speeding Up IDM without Degradation of Retrieval Quality
The Image Distortion Model (IDM) has shown good retrieval quality in previous runs of the medical automatic annotation task of previous ImageCLEF workshops. However, one of its li...
Michael Springmann, Heiko Schuldt
ISW
2001
Springer
15 years 7 months ago
Persistent Authenticated Dictionaries and Their Applications
Abstract. We introduce the notion of persistent authenticated dictionaries, that is, dictionaries where the user can make queries of the type “was element e in set S at time t?â€...
Aris Anagnostopoulos, Michael T. Goodrich, Roberto...
DSRT
1998
IEEE
15 years 6 months ago
A Network Architecture for Remote Rendering
Internet-based virtual environments (VEs) let users explore multiple virtual worlds with many different geometric models which are downloaded rather than predistributed. To avoid ...
Gerd Hesina, Dieter Schmalstieg
119
Voted
FCT
1995
Springer
15 years 6 months ago
Fast Algorithms for Maintaining Shortest Paths in Outerplanar and Planar Digraphs
Abstract. We present algorithms for maintaining shortest path information in dynamic outerplanar digraphs with sublogarithmic query time. By choosing appropriate parameters we achi...
Hristo Djidjev, Grammati E. Pantziou, Christos D. ...