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VLDB
2003
ACM
107views Database» more  VLDB 2003»
14 years 5 months ago
A performance study of four index structures for set-valued attributes of low cardinality
The efficient retrieval of data items on set-valued attributes is an important research topic that has attracted little attention so far. We studied and modified four index structu...
Sven Helmer, Guido Moerkotte
VLDB
1994
ACM
148views Database» more  VLDB 1994»
13 years 8 months ago
Fast Incremental Indexing for Full-Text Information Retrieval
Full-text information retrieval systems have traditionally been designed for archival environments. They often provide little or no support for adding new documents to an existing...
Eric W. Brown, James P. Callan, W. Bruce Croft
CATA
1998
13 years 6 months ago
QVI: Query-based virtual index for distributed information retrieval
The large unstructured text collections demand full-text search capabilities from IR systems. Current systems typically allow users only to connect to a single database (or site) ...
Dong-gyu Kim, Sang-goo Lee
CVPR
2009
IEEE
14 years 12 months ago
Learning query-dependent prefilters for scalable image retrieval
We describe an algorithm for similar-image search which is designed to be efficient for extremely large collections of images. For each query, a small response set is selected by...
Lorenzo Torresani (Dartmouth College), Martin Szum...
ADBIS
2003
Springer
204views Database» more  ADBIS 2003»
13 years 8 months ago
Hierarchical Bitmap Index: An Efficient and Scalable Indexing Technique for Set-Valued Attributes
Abstract. Set-valued attributes are convenient to model complex objects occurring in the real world. Currently available database systems support the storage of set-valued attribut...
Mikolaj Morzy, Tadeusz Morzy, Alexandros Nanopoulo...