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» Evaluating rank joins with optimal cost
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IUI
1993
ACM
14 years 2 months ago
The price of flexibility
The goal of this paper is to model an agent who dislikes large choice sets because of the “cost of thinking” involved in choosing from them. We take as a primitive a preferenc...
David D. Woods
APNOMS
2006
Springer
14 years 2 months ago
"P4L": A Four Layers P2P Model for Optimizing Resources Discovery and Localization
Peer-to-Peer systems are based on the concept of resources localization and mutualization in dynamic context. In specific environment such as mobile networks, characterized by high...
Mourad Amad, Ahmed Meddahi
EDBT
2012
ACM
247views Database» more  EDBT 2012»
12 years 1 months ago
Heuristics-based query optimisation for SPARQL
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
Petros Tsialiamanis, Lefteris Sidirourgos, Irini F...
SIGMOD
2004
ACM
157views Database» more  SIGMOD 2004»
14 years 11 months ago
Adaptive Ordering of Pipelined Stream Filters
We consider the problem of pipelined filters, where a continuous stream of tuples is processed by a set of commutative filters. Pipelined filters are common in stream applications...
Shivnath Babu, Rajeev Motwani, Kamesh Munagala, It...
ECOOP
1999
Springer
14 years 3 months ago
Dynamic Query-Based Debugging
Program errors are hard to find because of the cause-effect gap between the time when an error occurs and the time when the error becomes apparent to the programmer. Although debu...
Raimondas Lencevicius, Urs Hölzle, Ambuj K. S...