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» Querying Semi-Structured Data
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GIS
2005
ACM
14 years 9 months ago
Two ellipse-based pruning methods for group nearest neighbor queries
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
Hongga Li, Hua Lu, Bo Huang, Zhiyong Huang
SIGMOD
2002
ACM
165views Database» more  SIGMOD 2002»
14 years 8 months ago
APEX: an adaptive path index for XML data
The emergence of the Web has increased interests in XML data. XML query languages such as XQuery and XPath use label paths to traverse the irregularly structured data. Without a s...
Chin-Wan Chung, Jun-Ki Min, Kyuseok Shim
WWW
2001
ACM
14 years 8 months ago
XML Query Forms (XQForms): Declarative Specification of XML Query Interfaces
XQForms is the first generator of Web-based query forms and reports for XML data. XQForms takes as input (i) XML Schemas that model the data to be queried and presented, (ii) decl...
Michalis Petropoulos, Vasilis Vassalos, Yannis Pap...
ADMA
2005
Springer
119views Data Mining» more  ADMA 2005»
14 years 1 months ago
Heuristic Scheduling of Concurrent Data Mining Queries
Execution cost of batched data mining queries can be reduced by integrating their I/O steps. Due to memory limitations, not all data mining queries in a batch can be executed toget...
Marek Wojciechowski, Maciej Zakrzewicz
VLDB
2000
ACM
128views Database» more  VLDB 2000»
13 years 11 months ago
Concurrency in the Data Warehouse
When a data warehouse is loaded at night and queried during the day, there is no requirement for concurrent update and querying. However there are a number of situations where con...
Richard Taylor