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DOCENG
2004
ACM
15 years 3 months ago
Presenting the results of relevance-oriented search over XML documents
In this paper, we discuss how to present the result of searching elements of any type from XML documents relevant to some information need (relevance-oriented search). As the resu...
Alda Lopes Gançarski, Pedro Rangel Henrique...
ICDT
2009
ACM
105views Database» more  ICDT 2009»
15 years 11 months ago
Efficient data structures for range-aggregate queries on trees
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
Hao Yuan, Mikhail J. Atallah
KES
2005
Springer
15 years 4 months ago
Data Integration Hub for a Hybrid Paper Search
In this paper we describe the design of a hybrid search that combines simple metadata search with a traditional keyword search over unstructured context data. This paradigm provide...
Jungkee Kim, Geoffrey Fox, Seong Joon Yoo
GIS
2006
ACM
15 years 11 months ago
Query optimizer for spatial join operations
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
Cirano Iochpe, João Luiz Dihl Comba, Miguel...
SIGMOD
2007
ACM
120views Database» more  SIGMOD 2007»
15 years 10 months ago
Xpath on steroids: exploiting relational engines for xpath performance
A lot of research has been conducted by the database community on methods and techniques for efficient XPath processing, with great success. Despite the progress made, significant...
Haris Georgiadis, Vasilis Vassalos