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218
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ICDE
2004
IEEE
85views Database» more  ICDE 2004»
16 years 4 months ago
Selectivity Estimation for String Predicates: Overcoming the Underestimation Problem
Queries with (equality or LIKE) selection predicates over string attributes are widely used in relational databases. However, state-of-the-art techniques for estimating selectivit...
Surajit Chaudhuri, Venkatesh Ganti, Luis Gravano
IDEAS
2000
IEEE
117views Database» more  IDEAS 2000»
15 years 7 months ago
Path Query Reduction and Diffusion for Distributed Semi-Structured Data Retrieval
I n this paper, we address the problem of query processing o n distributed semi-structured data. The distributed semistructured data can be modeled as a rooted and edge-labeled gr...
Jaehyung Lee, Yon Dohn Chung, Myoung-Ho Kim
131
Voted
CIIA
2009
15 years 4 months ago
Dynamic Scheduling in Petroleum Process using Reinforcement Learning
Petroleum industry production systems are highly automatized. In this industry, all functions (e.g., planning, scheduling and maintenance) are automated and in order to remain comp...
Nassima Aissani, Bouziane Beldjilali
TPDS
2008
262views more  TPDS 2008»
15 years 3 months ago
Efficient and Secure Content Processing and Distribution by Cooperative Intermediaries
Content services such as content filtering and transcoding adapt contents to meet system requirements, display capacities, or user preferences. Data security in such a framework is...
Yunhua Koglin, Danfeng Yao, Elisa Bertino
PVLDB
2011
14 years 6 months ago
Merging What's Cracked, Cracking What's Merged: Adaptive Indexing in Main-Memory Column-Stores
Adaptive indexing is characterized by the partial creation and refinement of the index as side effects of query execution. Dynamic or shifting workloads may benefit from prelimi...
Stratos Idreos, Stefan Manegold, Harumi A. Kuno, G...