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HICSS
2002
IEEE
109views Biometrics» more  HICSS 2002»
15 years 9 months ago
An Extended Dynamic Source Routing Scheme in Ad Hoc Wireless Networks
In this paper we consider a multipath extension to the dynamic source routing (DSR) protocol proposed by Johnson and Maltz, an on-demand routing protocol for ad hoc wireless netwo...
Jie Wu
SSDBM
2002
IEEE
128views Database» more  SSDBM 2002»
15 years 9 months ago
Compressing Bitmap Indexes for Faster Search Operations
In this paper, we study the effects of compression on bitmap indexes. The main operations on the bitmaps during query processing are bitwise logical operations such as AND, OR, N...
Kesheng Wu, Ekow J. Otoo, Arie Shoshani
IDEAS
2000
IEEE
96views Database» more  IDEAS 2000»
15 years 9 months ago
A Cost Function for Uniformly Partitioned UB-Trees
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
Volker Markl, Rudolf Bayer
SIGMOD
1998
ACM
143views Database» more  SIGMOD 1998»
15 years 8 months ago
Optimal Multi-Step k-Nearest Neighbor Search
For an increasing number of modern database applications, efficient support of similarity search becomes an important task. Along with the complexity of the objects such as images...
Thomas Seidl, Hans-Peter Kriegel
ERCIMDL
1997
Springer
106views Education» more  ERCIMDL 1997»
15 years 8 months ago
Scalable Text Retrieval for Large Digital Libraries
It is argued that digital libraries of the future will contain terabyte-scale collections of digital text and that full-text searching techniques will be required to operate over c...
David Hawking