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STOC
2001
ACM
147views Algorithms» more  STOC 2001»
16 years 7 months ago
Conditions on input vectors for consensus solvability in asynchronous distributed systems
This article introduces and explores the condition-based approach to solve the consensus problem in asynchronous systems. The approach studies conditions that identify sets of inpu...
Achour Mostéfaoui, Michel Raynal, Sergio Ra...
VLDB
2005
ACM
121views Database» more  VLDB 2005»
16 years 6 months ago
Join operations in temporal databases
Joins are arguably the most important relational operators. Poor implementations are tantamount to computing the Cartesian product of the input relations. In a temporal database, t...
Dengfeng Gao, Christian S. Jensen, Richard T. Snod...
SIGMOD
2006
ACM
114views Database» more  SIGMOD 2006»
16 years 6 months ago
Ordering the attributes of query results
There has been a great deal of interest in the past few years on ranking of results of queries on structured databases, including work on probabilistic information retrieval, rank...
Gautam Das, Vagelis Hristidis, Nishant Kapoor, S. ...
SIGMOD
2006
ACM
124views Database» more  SIGMOD 2006»
16 years 6 months ago
Redundancy and information leakage in fine-grained access control
The current SQL standard for access control is coarse grained, in that it grants access to all rows of a table or none. Fine-grained access control, which allows control of access...
Govind Kabra, Ravishankar Ramamurthy, S. Sudarshan
SIGMOD
2003
ACM
141views Database» more  SIGMOD 2003»
16 years 6 months ago
QC-Trees: An Efficient Summary Structure for Semantic OLAP
Recently, a technique called quotient cube was proposed as a summary structure for a data cube that preserves its semantics, with applications for online exploration and visualiza...
Laks V. S. Lakshmanan, Jian Pei, Yan Zhao