Sciweavers

27 search results - page 4 / 6
» Dependency relation matching for answer selection
Sort
View
PODS
2010
ACM
228views Database» more  PODS 2010»
14 years 11 months ago
Capturing missing tuples and missing values
Databases in real life are often neither entirely closed-world nor entirely open-world. Indeed, databases in an enterprise are typically partially closed, in which a part of the d...
Wenfei Fan, Floris Geerts
KDD
2006
ACM
164views Data Mining» more  KDD 2006»
15 years 10 months ago
Sampling from large graphs
Given a huge real graph, how can we derive a representative sample? There are many known algorithms to compute interesting measures (shortest paths, centrality, betweenness, etc.)...
Jure Leskovec, Christos Faloutsos
SIGMOD
2007
ACM
198views Database» more  SIGMOD 2007»
15 years 10 months ago
Addressing diverse user preferences in SQL-query-result navigation
Database queries are often exploratory and users often find their queries return too many answers, many of them irrelevant. Existing work either categorizes or ranks the results t...
Zhiyuan Chen, Tao Li
SIGIR
1997
ACM
15 years 1 months ago
Learning Routing Queries in a Query Zone
Word usage is domain dependent. A common word in one domain can be quite infrequent in another. In this study we exploit this property of word usage to improve document routing. W...
Amit Singhal, Mandar Mitra, Chris Buckley
EDBT
2008
ACM
120views Database» more  EDBT 2008»
15 years 9 months ago
Schema mapping verification: the spicy way
Schema mapping algorithms rely on value correspondences ? i.e., correspondences among semantically related attributes ? to produce complex transformations among data sources. Thes...
Angela Bonifati, Giansalvatore Mecca, Alessandro P...