Sciweavers

235 search results - page 9 / 47
» Evaluating Query Result Significance in Databases via Random...
Sort
View
SIGIR
2009
ACM
15 years 6 months ago
Smoothing clickthrough data for web search ranking
Incorporating features extracted from clickthrough data (called clickthrough features) has been demonstrated to significantly improve the performance of ranking models for Web sea...
Jianfeng Gao, Wei Yuan, Xiao Li, Kefeng Deng, Jian...
80
Voted
DEXAW
1998
IEEE
126views Database» more  DEXAW 1998»
15 years 3 months ago
An Extended Query Reformulation Technique Using Materialized Views
Materialized views offer opportunities for significant performance gain in query evaluation by providing fast access to pre-computed data. The question of when and how to use a ma...
Jae-young Chang, Sang-goo Lee
ICDE
1995
IEEE
164views Database» more  ICDE 1995»
16 years 29 days ago
Efficient Processing of Nested Fuzzy SQL Queries
?In a fuzzy relational database where a relation is a fuzzy set of tuples and ill-known data are represented by possibility distributions, nested fuzzy queries can be expressed in ...
Qi Yang, Chengwen Liu, Jing Wu, Clement T. Yu, Son...
ICDE
2002
IEEE
232views Database» more  ICDE 2002»
16 years 29 days ago
DBXplorer: A System for Keyword-Based Search over Relational Databases
Internet search engines have popularized the keywordbased search paradigm. While traditional database management systems offer powerful query languages, they do not allow keyword-...
Sanjay Agrawal, Surajit Chaudhuri, Gautam Das
121
Voted
ICDE
2009
IEEE
157views Database» more  ICDE 2009»
14 years 9 months ago
Query Rewrites with Views for XML in DB2
There is much effort to develop comprehensive support for the storage and querying of XML data in database management systems. The major developers have extended their systems to h...
Parke Godfrey, Jarek Gryz, Andrzej Hoppe, Wenbin M...