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» On the structure of some phase retrieval algorithms
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WISE
2005
Springer
15 years 3 months ago
A Formal Ontology Reasoning with Individual Optimization: A Realization of the Semantic Web
Abstract. Answering a query over a group of RDF data pages is a trivial process. However, in the Semantic Web, there is a need for ontology technology. Consequently, OWL, a family ...
Pakornpong Pothipruk, Guido Governatori
PODS
2011
ACM
238views Database» more  PODS 2011»
14 years 17 days ago
Beyond simple aggregates: indexing for summary queries
Database queries can be broadly classified into two categories: reporting queries and aggregation queries. The former retrieves a collection of records from the database that mat...
Zhewei Wei, Ke Yi
SIGMOD
2006
ACM
238views Database» more  SIGMOD 2006»
15 years 10 months ago
Continuous monitoring of top-k queries over sliding windows
Given a dataset P and a preference function f, a top-k query retrieves the k tuples in P with the highest scores according to f. Even though the problem is well-studied in convent...
Kyriakos Mouratidis, Spiridon Bakiras, Dimitris Pa...
SIGMOD
2001
ACM
146views Database» more  SIGMOD 2001»
15 years 10 months ago
On Supporting Containment Queries in Relational Database Management Systems
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...
Chun Zhang, Jeffrey F. Naughton, David J. DeWitt, ...
FSE
2005
Springer
153views Cryptology» more  FSE 2005»
15 years 3 months ago
F-FCSR: Design of a New Class of Stream Ciphers
In this paper we present a new class of stream ciphers based on a very simple mechanism. The heart of our method is a Feedback with Carry Shift Registers (FCSR) automaton. This au...
François Arnault, Thierry P. Berger