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SIGMOD
1999
ACM
114views Database» more  SIGMOD 1999»
15 years 2 months ago
A Layered Architecture for Querying Dynamic Web Content
The design of webbases, database systems for supporting Webbased applications, is currently an active area of research. In this paper, we propose a 3-layer architecture for design...
Hasan Davulcu, Juliana Freire, Michael Kifer, I. V...
STOC
1999
ACM
101views Algorithms» more  STOC 1999»
15 years 2 months ago
Short Proofs are Narrow - Resolution Made Simple
The width of a Resolution proof is defined to be the maximal number of literals in any clause of the proof. In this paper, we relate proof width to proof length (ϭsize), in both g...
Eli Ben-Sasson, Avi Wigderson
FOCS
1998
IEEE
15 years 2 months ago
The Complexity of Acyclic Conjunctive Queries
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
Georg Gottlob, Nicola Leone, Francesco Scarcello
SIGIR
1998
ACM
15 years 2 months ago
Fast Searching on Compressed Text Allowing Errors
Abstract We present a fast compression and decompression scheme for natural language texts that allows e cient and exible string matching by searching the compressed text directly....
Edleno Silva de Moura, Gonzalo Navarro, Nivio Zivi...
SIGOPSE
1998
ACM
15 years 2 months ago
Goal-oriented programming, or composition using events, or threads considered harmful
with this, the thread abstraction was introduced. While threads are handling events, or awaiting specific events, unrelated events can be handled by other threads. Unfortunately, ...
Robbert van Renesse