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CSUR
1998
99views more  CSUR 1998»
15 years 7 months ago
Multidimensional Access Methods
Search operations in databases require some special support at the physical level. This is true for conventional databases as well as for spatial databases, where typical search o...
Volker Gaede, Oliver Günther
TKDE
1998
102views more  TKDE 1998»
15 years 7 months ago
Fast and Effective Retrieval of Medical Tumor Shapes
—We investigate the problem of retrieving similar shapes from a large database; in particular, we focus on medical tumor shapes (“Find tumors that are similar to a given patter...
Flip Korn, Nikolaos Sidiropoulos, Christos Falouts...
TKDE
2002
239views more  TKDE 2002»
15 years 7 months ago
An Efficient Path Computation Model for Hierarchically Structured Topographical Road Maps
In this paper, we have developed a HiTi (Hierarchical MulTi) graph model for structuring large topographical road maps to the minimum cost route computation. The HiTi graph model p...
Sungwon Jung, Sakti Pramanik
TMM
2002
140views more  TMM 2002»
15 years 7 months ago
Narrowing the semantic gap - improved text-based web document retrieval using visual features
In this paper, we present the results of our work that seek to negotiate the gap between low-level features and high-level concepts in the domain of web document retrieval. This wo...
Rong Zhao, William I. Grosky
VLDB
2002
ACM
151views Database» more  VLDB 2002»
15 years 7 months ago
Preference SQL - Design, Implementation, Experiences
Current search engines can hardly cope adequately with fuzzy predicates defined by complex preferences. The biggest problem of search engines implemented with standard SQL is that...
Werner Kießling, Gerhard Köstler
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