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PODS
2006
ACM
216views Database» more  PODS 2006»
16 years 6 months ago
Cache-oblivious string B-trees
B-trees are the data structure of choice for maintaining searchable data on disk. However, B-trees perform suboptimally ? when keys are long or of variable length, ? when keys are...
Michael A. Bender, Martin Farach-Colton, Bradley C...
EDBT
2004
ACM
133views Database» more  EDBT 2004»
16 years 6 months ago
HOPI: An Efficient Connection Index for Complex XML Document Collections
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...
Ralf Schenkel, Anja Theobald, Gerhard Weikum
EDBT
2006
ACM
120views Database» more  EDBT 2006»
16 years 6 months ago
Query Planning in the Presence of Overlapping Sources
Navigational queries on Web-accessible life science sources pose unique query optimization challenges. The objects in these sources are interconnected to objects in other sources, ...
Jens Bleiholder, Samir Khuller, Felix Naumann, Lou...
EDBT
2006
ACM
112views Database» more  EDBT 2006»
16 years 6 months ago
Indexing Shared Content in Information Retrieval Systems
Abstract. Modern document collections often contain groups of documents with overlapping or shared content. However, most information retrieval systems process each document separa...
Andrei Z. Broder, Nadav Eiron, Marcus Fontoura, Mi...
EDBT
2006
ACM
172views Database» more  EDBT 2006»
16 years 6 months ago
Fast Query Point Movement Techniques with Relevance Feedback for Content-Based Image Retrieval
Abstract. Target search in content-based image retrieval (CBIR) systems refers to finding a specific (target) image such as a particular registered logo or a specific historical ph...
Danzhou Liu, Kien A. Hua, Khanh Vu, Ning Yu