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» Query reformulation with constraints
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ICDT
2001
ACM
153views Database» more  ICDT 2001»
15 years 5 months ago
Estimating Range Queries Using Aggregate Data with Integrity Constraints: A Probabilistic Approach
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...
Francesco Buccafurri, Filippo Furfaro, Domenico Sa...
PCI
2005
Springer
15 years 6 months ago
Closest Pair Queries with Spatial Constraints
Abstract. Given two datasets DA and DB the closest-pair query (CPQ) retrieves the pair (a,b), where a ∈ DA and b ∈ DB, having the smallest distance between all pairs of objects...
Apostolos N. Papadopoulos, Alexandros Nanopoulos, ...
ER
2007
Springer
163views Database» more  ER 2007»
15 years 6 months ago
Know your Limits: Enhanced XML Modeling with Cardinality Constraints
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
Sebastian Link, Thu Trinh
CORR
2011
Springer
148views Education» more  CORR 2011»
14 years 7 months ago
On Social-Temporal Group Query with Acquaintance Constraint
Three essential criteria are important for activity planning, including: (1) finding a group of attendees familiar with the initiator, (2) ensuring each attendee in the group to ...
De-Nian Yang, Yi-Ling Chen, Wang-Chien Lee, Ming-S...
ALT
2005
Springer
15 years 9 months ago
Gold-Style and Query Learning Under Various Constraints on the Target Class
In language learning, strong relationships between Gold-style models and query models have recently been observed: in some quite general setting Gold-style learners can be replaced...
Sanjay Jain, Steffen Lange, Sandra Zilles