PODS
2005
ACM
14 years 5 months ago
2005
ACM
Heavy hitters, which are items occurring with frequency above a given threshold, are an important aggregation and summary tool when processing data streams or data warehouses. Hie...
PODS
2005
ACM
14 years 5 months ago
2005
ACM
PODS
2005
ACM
14 years 5 months ago
2005
ACM
The full disjunction is a variation of the join operator that maximally combines tuples from connected relations, while preserving all information in the relations. The full disju...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
In order to protect individuals' privacy, the technique of kanonymization has been proposed to de-associate sensitive attributes from the corresponding identifiers. In this p...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
In sensor networks, data acquisition frequently takes place at lowcapability devices. The acquired data is then transmitted through a hierarchy of nodes having progressively incre...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
We investigate the question of whether a query can be answered using a set V of views. We first define the problem in information-theoretic terms: we say that V determines if V pr...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
Direct reductions of partial differential equations to systems of ordinary differential equations are in one-to-one correspondence with compatible differential constraints. The dif...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
Time-series data naturally arise in countless domains, such as meteorology, astrophysics, geology, multimedia, and economics. Similarity search is very popular, and DTW (Dynamic T...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
We are often interested to test whether a given cause has a given effect. If we cannot specify the nature of the factors involved, such tests are called model-free studies. There ...
PODS
2005
ACM
14 years 11 months ago
2005
ACM
Composition of mappings between schemas is essential to support schema evolution, data exchange, data integration, and other data management tasks. In many applications, mappings ...