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» Parallel Query Processing
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AUSAI
2004
Springer
15 years 9 months ago
Analyzing the Effect of Query Class on Document Retrieval Performance
Abstract. Analysis of queries posed to open-domain question-answering systems indicates that particular types of queries are dominant, e.g., queries about the identity of people, a...
Pawel Kowalczyk, Ingrid Zukerman, Michael Niemann
IDEAS
2003
IEEE
96views Database» more  IDEAS 2003»
15 years 9 months ago
Evaluating Nested Queries on XML Data
In the past few years, much attention has been paid to the study of semistructured data, i.e., data with irregular, possibly unstable, and rapidly changing structure, and, in part...
Carlo Sartiani
WEBDB
2010
Springer
143views Database» more  WEBDB 2010»
15 years 9 months ago
Querying Wikipedia Documents and Relationships
Wikipedia has become an important source of information which is growing very rapidly. However, the existing infrastructure for querying this information is limited and often igno...
Huong Nguyen, Thanh Nguyen, Hoa Nguyen, Juliana Fr...
DL
1997
Springer
117views Digital Library» more  DL 1997»
15 years 8 months ago
Evaluating the Cost of Boolean Query Mapping
Non-uniform query languages make searching over heterogeneous information sources difficult. Our approach is to allow a user to compose Boolean queries in one rich front-end lang...
Kevin Chen-Chuan Chang, Hector Garcia-Molina
147
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ICDE
2011
IEEE
288views Database» more  ICDE 2011»
14 years 7 months ago
Optimal location queries in road network databases
— Optimal location (OL) queries are a type of spatial queries particularly useful for the strategic planning of resources. Given a set of existing facilities and a set of clients...
Xiaokui Xiao, Bin Yao 0002, Feifei Li