101 search results - page 9 / 21 » vldb 2002 |
VLDB
2002
ACM
13 years 6 months ago
2002
ACM
We present algorithms for computing frequency counts exceeding a user-specified threshold over data streams. Our algorithms are simple and have provably small memory footprints. A...
VLDB
2002
ACM
13 years 6 months ago
2002
ACM
Deduplication, a key operation in integrating data from multiple sources, is a time-consuming, labor-intensive and domainspecific operation. We present our design of alias that us...
VLDB
2002
ACM
13 years 6 months ago
2002
ACM
The duplicate elimination problem of detecting multiple tuples, which describe the same real world entity, is an important data cleaning problem. Previous domain independent solut...
VLDB
2002
ACM
14 years 7 months ago
2002
ACM
Abstract. We propose an indexing technique for the fast retrieval of objects in 2D images based on similarity between their boundary shapes. Our technique is robust in the presence...
VLDB
2002
ACM
13 years 6 months ago
2002
ACM
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...