187 search results - page 29 / 38 » Querying Databases and XML Documents: Comparative Study and ... |
WWW
2002
ACM
14 years 8 months ago
2002
ACM
Query expansion has long been suggested as an effective way to resolve the short query and word mismatching problems. A number of query expansion methods have been proposed in tra...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
This paper presents a principled framework for efficient processing of ad-hoc top-k (ranking) aggregate queries, which provide the k groups with the highest aggregates as results....
RIDE
2003
IEEE
14 years 27 days ago
2003
IEEE
Global e-Commerce and mass-outreach e-Governance programs have brought into sharp focus the need for database systems to store and manipulate text data efficiently in a suite of ...
ICDE
2011
IEEE
12 years 11 months ago
2011
IEEE
— Real-world databases often have extremely complex schemas. With thousands of entity types and relationships, each with a hundred or so attributes, it is extremely difficult fo...
VLDB
2002
ACM
13 years 7 months ago
2002
ACM
The problem of indexing path queries in semistructured/XML databases has received considerable attention recently, and several proposals have advocated the use of structure indexe...